diff --git a/Documentation/devicetree/bindings/leds/leds-is31fl319x.txt b/Documentation/devicetree/bindings/leds/leds-is31fl319x.txt
index fc2603484544d41178fcf89dd967ed75f4621740..676d43ec816924cb17626ffac389e45b84d2a924 100644
--- a/Documentation/devicetree/bindings/leds/leds-is31fl319x.txt
+++ b/Documentation/devicetree/bindings/leds/leds-is31fl319x.txt
@@ -16,6 +16,7 @@ Optional properties:
- audio-gain-db : audio gain selection for external analog modulation input.
Valid values: 0 - 21, step by 3 (rounded down)
Default: 0
+- shutdown-gpios : Specifier of the GPIO connected to SDB pin of the chip.
Each led is represented as a sub-node of the issi,is31fl319x device.
There can be less leds subnodes than the chip can support but not more.
@@ -44,6 +45,7 @@ fancy_leds: leds@65 {
#address-cells = <1>;
#size-cells = <0>;
reg = <0x65>;
+ shutdown-gpios = <&gpio0 11 GPIO_ACTIVE_HIGH>;
red_aux: led@1 {
label = "red:aux";
diff --git a/Documentation/devicetree/bindings/leds/leds-lp50xx.yaml b/Documentation/devicetree/bindings/leds/leds-lp50xx.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..947542a253ec6bae8ad79292231ef87be69860c1
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/leds-lp50xx.yaml
@@ -0,0 +1,130 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/leds/leds-lp50xx.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: LED driver for LP50XX RGB LED from Texas Instruments.
+
+maintainers:
+ - Dan Murphy <dmurphy@ti.com>
+
+description: |
+ The LP50XX is multi-channel, I2C RGB LED Drivers that can group RGB LEDs into
+ a LED group or control them individually.
+
+ The difference in these RGB LED drivers is the number of supported RGB
+ modules.
+
+ For more product information please see the link below:
+ https://www.ti.com/lit/ds/symlink/lp5012.pdf
+ https://www.ti.com/lit/ds/symlink/lp5024.pdf
+ https://www.ti.com/lit/ds/symlink/lp5036.pdf
+
+properties:
+ compatible:
+ enum:
+ - ti,lp5009
+ - ti,lp5012
+ - ti,lp5018
+ - ti,lp5024
+ - ti,lp5030
+ - ti,lp5036
+
+ reg:
+ maxItems: 1
+ description:
+ I2C slave address
+ lp5009/12 - 0x14, 0x15, 0x16, 0x17
+ lp5018/24 - 0x28, 0x29, 0x2a, 0x2b
+ lp5030/36 - 0x30, 0x31, 0x32, 0x33
+
+ enable-gpios:
+ maxItems: 1
+ description: GPIO pin to enable/disable the device.
+
+ vled-supply:
+ description: LED supply.
+
+patternProperties:
+ '^multi-led@[0-9a-f]$':
+ type: object
+ allOf:
+ - $ref: leds-class-multicolor.yaml#
+ properties:
+ reg:
+ minItems: 1
+ maxItems: 12
+ description:
+ This property denotes the LED module number(s) that is used on the
+ for the child node. The LED modules can either be used stand alone
+ or grouped into a module bank.
+
+ patternProperties:
+ "(^led-[0-9a-f]$|led)":
+ type: object
+ $ref: common.yaml#
+
+required:
+ - compatible
+ - reg
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/leds/common.h>
+
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ led-controller@14 {
+ compatible = "ti,lp5009";
+ reg = <0x14>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ enable-gpios = <&gpio1 16>;
+
+ multi-led@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x1>;
+ color = <LED_COLOR_ID_RGB>;
+ function = LED_FUNCTION_CHARGING;
+
+ led-0 {
+ color = <LED_COLOR_ID_RED>;
+ };
+
+ led-1 {
+ color = <LED_COLOR_ID_GREEN>;
+ };
+
+ led-2 {
+ color = <LED_COLOR_ID_BLUE>;
+ };
+ };
+
+ multi-led@2 {
+ #address-cells = <1>;
+ #size-cells = <2>;
+ reg = <0x2 0x3 0x5>;
+ color = <LED_COLOR_ID_RGB>;
+ function = LED_FUNCTION_STANDBY;
+
+ led-6 {
+ color = <LED_COLOR_ID_RED>;
+ };
+
+ led-7 {
+ color = <LED_COLOR_ID_GREEN>;
+ };
+
+ led-8 {
+ color = <LED_COLOR_ID_BLUE>;
+ };
+ };
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/leds/leds-lp55xx.yaml b/Documentation/devicetree/bindings/leds/leds-lp55xx.yaml
index b1bb3feb0f4dabcde977fb797dde71551d06890d..89f69d62493e96130d9b52835f6d9d5d550c360f 100644
--- a/Documentation/devicetree/bindings/leds/leds-lp55xx.yaml
+++ b/Documentation/devicetree/bindings/leds/leds-lp55xx.yaml
@@ -189,7 +189,7 @@ examples:
#address-cells = <1>;
#size-cells = <0>;
reg = <0x2>;
- color = <LED_COLOR_ID_MULTI>;
+ color = <LED_COLOR_ID_RGB>;
function = LED_FUNCTION_STANDBY;
linux,default-trigger = "heartbeat";
diff --git a/Documentation/devicetree/bindings/leds/leds-pca955x.txt b/Documentation/devicetree/bindings/leds/leds-pca955x.txt
index 7a5830f8d5aba84d285e5756c0fc1debe9bfd76d..817f460f3a72ac74c25b9297f9eb4464ea270d87 100644
--- a/Documentation/devicetree/bindings/leds/leds-pca955x.txt
+++ b/Documentation/devicetree/bindings/leds/leds-pca955x.txt
@@ -9,6 +9,7 @@ Required properties:
"nxp,pca9550"
"nxp,pca9551"
"nxp,pca9552"
+ "ibm,pca9552"
"nxp,pca9553"
- #address-cells: must be 1
- #size-cells: must be 0
diff --git a/Documentation/devicetree/bindings/leds/tca6507.txt b/Documentation/devicetree/bindings/leds/tca6507.txt
deleted file mode 100644
index bad9102796f3299fb0e96100bca982cc76b79831..0000000000000000000000000000000000000000
--- a/Documentation/devicetree/bindings/leds/tca6507.txt
+++ /dev/null
@@ -1,49 +0,0 @@
-LEDs connected to tca6507
-
-Required properties:
-- compatible : should be : "ti,tca6507".
-- #address-cells: must be 1
-- #size-cells: must be 0
-- reg: typically 0x45.
-
-Optional properties:
-- gpio-controller: allows lines to be used as output-only GPIOs.
-- #gpio-cells: if present, must not be 0.
-
-Each led is represented as a sub-node of the ti,tca6507 device.
-
-LED sub-node properties:
-- label : (optional) see Documentation/devicetree/bindings/leds/common.txt
-- reg : number of LED line (could be from 0 to 6)
-- linux,default-trigger : (optional)
- see Documentation/devicetree/bindings/leds/common.txt
-- compatible: either "led" (the default) or "gpio".
-
-Examples:
-
-tca6507@45 {
- compatible = "ti,tca6507";
- #address-cells = <1>;
- #size-cells = <0>;
- reg = <0x45>;
-
- gpio-controller;
- #gpio-cells = <2>;
-
- led0: red-aux@0 {
- label = "red:aux";
- reg = <0x0>;
- };
-
- led1: green-aux@1 {
- label = "green:aux";
- reg = <0x5>;
- linux,default-trigger = "default-on";
- };
-
- wifi-reset@6 {
- reg = <0x6>;
- compatible = "gpio";
- };
-};
-
diff --git a/Documentation/devicetree/bindings/leds/ti,tca6507.yaml b/Documentation/devicetree/bindings/leds/ti,tca6507.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..94c307c987621c5bcf3182ae2384889f4dd0b516
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/ti,tca6507.yaml
@@ -0,0 +1,134 @@
+# SPDX-License-Identifier: GPL-2.0-only
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/leds/ti,tca6507.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: TCA6507 LED and GPIO controller
+
+maintainers:
+ - NeilBrown <neilb@suse.de>
+
+description:
+ The TCA6507 is a programmable LED controller connected via I2C that can drive
+ 7 separate lines either by holding them low, or by pulsing them with modulated
+ width.
+
+properties:
+ compatible:
+ const: ti,tca6507
+
+ reg:
+ description: I2C slave address of the controller.
+ maxItems: 1
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+ gpio-controller: true
+
+ "#gpio-cells":
+ const: 2
+
+ gpio-line-names: true
+
+patternProperties:
+ "^led@[0-6]$":
+ type: object
+
+ $ref: common.yaml#
+
+ properties:
+ reg:
+ minimum: 0
+ maximum: 6
+
+ required:
+ - reg
+
+ "^gpio@[0-6]$":
+ type: object
+
+ properties:
+ compatible:
+ const: gpio
+
+ reg:
+ minimum: 0
+ maximum: 6
+
+ additionalProperties: false
+
+ required:
+ - reg
+ - compatible
+
+if:
+ patternProperties:
+ "^gpio@[0-6]$":
+ properties:
+ compatible:
+ contains:
+ const: gpio
+then:
+ required:
+ - gpio-controller
+ - "#gpio-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/leds/common.h>
+
+ i2c0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ led-controller@45 {
+ compatible = "ti,tca6507";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x45>;
+
+ gpio-controller;
+ #gpio-cells = <2>;
+
+ gpio-line-names = "wifi_reset@6";
+
+ led@0 {
+ label = "gta04:red:aux";
+ reg = <0x0>;
+ };
+
+ led@1 {
+ label = "gta04:green:aux";
+ reg = <0x1>;
+ };
+
+ led@3 {
+ reg = <0x3>;
+ color = <LED_COLOR_ID_RED>;
+ function = LED_FUNCTION_POWER;
+ linux,default-trigger = "default-on";
+ };
+
+ led@4 {
+ color = <LED_COLOR_ID_GREEN>;
+ function = LED_FUNCTION_POWER;
+ reg = <0x4>;
+ };
+
+ gpio@6 {
+ compatible = "gpio";
+ reg = <0x6>;
+ };
+ };
+ };
+
+...
diff --git a/Documentation/leds/ledtrig-transient.rst b/Documentation/leds/ledtrig-transient.rst
index eedfa1626e8af92350132b104c9c571fe70cc6b0..63072f310660a24a728bc26eb1ee4b47db8a65b8 100644
--- a/Documentation/leds/ledtrig-transient.rst
+++ b/Documentation/leds/ledtrig-transient.rst
@@ -17,12 +17,6 @@ set a timer to hold a state, however when user space application crashes or
goes away without deactivating the timer, the hardware will be left in that
state permanently.
-As a specific example of this use-case, let's look at vibrate feature on
-phones. Vibrate function on phones is implemented using PWM pins on SoC or
-PMIC. There is a need to activate one shot timer to control the vibrate
-feature, to prevent user space crashes leaving the phone in vibrate mode
-permanently causing the battery to drain.
-
Transient trigger addresses the need for one shot timer activation. The
transient trigger can be enabled and disabled just like the other leds
triggers.
@@ -159,7 +153,6 @@ repeat the following step as needed::
This trigger is intended to be used for the following example use cases:
- - Control of vibrate (phones, tablets etc.) hardware by user space app.
- Use of LED by user space app as activity indicator.
- Use of LED by user space app as a kind of watchdog indicator -- as
long as the app is alive, it can keep the LED illuminated, if it dies
diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
index 1c181df24eae43c5e9ff67de246f5e396c7ff89e..849d3c5f908e4d597f4cf0225d596549ccdee770 100644
--- a/drivers/leds/Kconfig
+++ b/drivers/leds/Kconfig
@@ -274,7 +274,7 @@ config LEDS_MT6323
config LEDS_S3C24XX
tristate "LED Support for Samsung S3C24XX GPIO LEDs"
depends on LEDS_CLASS
- depends on ARCH_S3C24XX
+ depends on ARCH_S3C24XX || COMPILE_TEST
help
This option enables support for LEDs connected to GPIO lines
on Samsung S3C24XX series CPUs, such as the S3C2410 and S3C2440.
@@ -304,13 +304,13 @@ config LEDS_WRAP
config LEDS_COBALT_QUBE
tristate "LED Support for the Cobalt Qube series front LED"
depends on LEDS_CLASS
- depends on MIPS_COBALT
+ depends on MIPS_COBALT || COMPILE_TEST
help
This option enables support for the front LED on Cobalt Qube series
config LEDS_COBALT_RAQ
bool "LED Support for the Cobalt Raq series"
- depends on LEDS_CLASS=y && MIPS_COBALT
+ depends on LEDS_CLASS=y && (MIPS_COBALT || COMPILE_TEST)
select LEDS_TRIGGERS
help
This option enables support for the Cobalt Raq series LEDs.
@@ -395,8 +395,20 @@ config LEDS_LP3952
To compile this driver as a module, choose M here: the
module will be called leds-lp3952.
+config LEDS_LP50XX
+ tristate "LED Support for TI LP5036/30/24/18/12/9 LED driver chip"
+ depends on LEDS_CLASS && REGMAP_I2C
+ depends on LEDS_CLASS_MULTICOLOR || !LEDS_CLASS_MULTICOLOR
+ help
+ If you say yes here you get support for the Texas Instruments
+ LP5036, LP5030, LP5024, LP5018, LP5012 and LP5009 LED driver.
+
+ To compile this driver as a module, choose M here: the
+ module will be called leds-lp50xx.
+
config LEDS_LP55XX_COMMON
tristate "Common Driver for TI/National LP5521/5523/55231/5562/8501"
+ depends on LEDS_CLASS
depends on LEDS_CLASS_MULTICOLOR || !LEDS_CLASS_MULTICOLOR
depends on OF
depends on I2C
@@ -632,7 +644,7 @@ config LEDS_MC13783
config LEDS_NS2
tristate "LED support for Network Space v2 GPIO LEDs"
depends on LEDS_CLASS
- depends on MACH_KIRKWOOD || MACH_ARMADA_370
+ depends on MACH_KIRKWOOD || MACH_ARMADA_370 || COMPILE_TEST
default y
help
This option enables support for the dual-GPIO LEDs found on the
@@ -646,7 +658,7 @@ config LEDS_NS2
config LEDS_NETXBIG
tristate "LED support for Big Network series LEDs"
depends on LEDS_CLASS
- depends on MACH_KIRKWOOD
+ depends on MACH_KIRKWOOD || COMPILE_TEST
depends on OF_GPIO
default y
help
@@ -893,7 +905,7 @@ config LEDS_TPS6105X
config LEDS_IP30
tristate "LED support for SGI Octane machines"
depends on LEDS_CLASS
- depends on SGI_MFD_IOC3
+ depends on SGI_MFD_IOC3 || COMPILE_TEST
help
This option enables support for the Red and White LEDs of
SGI Octane machines.
@@ -909,6 +921,13 @@ config LEDS_SGM3140
This option enables support for the SGM3140 500mA Buck/Boost Charge
Pump LED Driver.
+config LEDS_ACER_A500
+ tristate "Power button LED support for Acer Iconia Tab A500"
+ depends on LEDS_CLASS && MFD_ACER_A500_EC
+ help
+ This option enables support for the Power Button LED of
+ Acer Iconia Tab A500.
+
comment "LED Triggers"
source "drivers/leds/trigger/Kconfig"
diff --git a/drivers/leds/Makefile b/drivers/leds/Makefile
index c2c7d7ade0d06fad678e03a13f342b633c4d37b3..73e603e1727e7440ae1d43d072ff4a2ee6096ea0 100644
--- a/drivers/leds/Makefile
+++ b/drivers/leds/Makefile
@@ -10,6 +10,7 @@ obj-$(CONFIG_LEDS_TRIGGERS) += led-triggers.o
# LED Platform Drivers (keep this sorted, M-| sort)
obj-$(CONFIG_LEDS_88PM860X) += leds-88pm860x.o
obj-$(CONFIG_LEDS_AAT1290) += leds-aat1290.o
+obj-$(CONFIG_LEDS_ACER_A500) += leds-acer-a500.o
obj-$(CONFIG_LEDS_ADP5520) += leds-adp5520.o
obj-$(CONFIG_LEDS_AN30259A) += leds-an30259a.o
obj-$(CONFIG_LEDS_APU) += leds-apu.o
@@ -49,6 +50,7 @@ obj-$(CONFIG_LEDS_LM3697) += leds-lm3697.o
obj-$(CONFIG_LEDS_LOCOMO) += leds-locomo.o
obj-$(CONFIG_LEDS_LP3944) += leds-lp3944.o
obj-$(CONFIG_LEDS_LP3952) += leds-lp3952.o
+obj-$(CONFIG_LEDS_LP50XX) += leds-lp50xx.o
obj-$(CONFIG_LEDS_LP5521) += leds-lp5521.o
obj-$(CONFIG_LEDS_LP5523) += leds-lp5523.o
obj-$(CONFIG_LEDS_LP5562) += leds-lp5562.o
diff --git a/drivers/leds/TODO b/drivers/leds/TODO
new file mode 100644
index 0000000000000000000000000000000000000000..bfa60fa1d81205883e575bf1e2456b1cb8e1048c
--- /dev/null
+++ b/drivers/leds/TODO
@@ -0,0 +1,75 @@
+-*- org -*-
+
+* On/off LEDs should have max_brightness of 1
+* Get rid of enum led_brightness
+
+It is really an integer, as maximum is configurable. Get rid of it, or
+make it into typedef or something.
+
+* Review atomicity requirements in LED subsystem
+
+Calls that may and that may not block are mixed in same structure, and
+semantics is sometimes non-intuitive. (For example blink callback may
+not sleep.) Review the requirements for any bugs and document them
+clearly.
+
+* LED names are still a mess
+
+No two LEDs have same name, so the names are probably unusable for the
+userland. Nudge authors into creating common LED names for common
+functionality.
+
+? Perhaps check for known LED names during boot, and warn if there are
+LEDs not on the list?
+
+* Split drivers into subdirectories
+
+The number of drivers is getting big, and driver for on/off LED on a
+i/o port is really quite different from camera flash LED, which is
+really different from driver for RGB color LED that can run its own
+microcode. Split the drivers somehow.
+
+* Figure out what to do with RGB leds
+
+Multicolor is a bit too abstract. Yes, we can have
+Green-Magenta-Ultraviolet LED, but so far all the LEDs we support are
+RGB, and not even RGB-White or RGB-Yellow variants emerged.
+
+Multicolor is not a good fit for RGB LED. It does not really know
+about LED color. In particular, there's no way to make LED "white".
+
+Userspace is interested in knowing "this LED can produce arbitrary
+color", which not all multicolor LEDs can.
+
+ Proposal: let's add "rgb" to led_colors in drivers/leds/led-core.c,
+ add corresponding device tree defines, and use that, instead of
+ multicolor for RGB LEDs.
+
+ We really need to do that now; "white" stuff can wait.
+
+RGB LEDs are quite common, and it would be good to be able to turn LED
+white and to turn it into any arbitrary color. It is essential that
+userspace is able to set arbitrary colors, and it might be good to
+have that ability from kernel, too... to allow full-color triggers.
+
+* Command line utility to manipulate the LEDs?
+
+/sys interface is not really suitable to use by hand, should we have
+an utility to perform LED control?
+
+In particular, LED names are still a mess (see above) and utility
+could help there by presenting both old and new names while we clean
+them up.
+
+In future, I'd like utility to accept both old and new names while we
+clean them up.
+
+It would be also nice to have useful listing mode -- name, type,
+current brightness/trigger...
+
+In future, it would be good to be able to set rgb led to particular
+color.
+
+And probably user-friendly interface to access LEDs for particular
+ethernet interface would be nice.
+
diff --git a/drivers/leds/led-class.c b/drivers/leds/led-class.c
index cc3929f858b68c8928a3411147f39650dbf7fd53..131ca83f5fb380f05e0efd0042262a92f400623a 100644
--- a/drivers/leds/led-class.c
+++ b/drivers/leds/led-class.c
@@ -354,6 +354,11 @@ int led_classdev_register_ext(struct device *parent,
ret = led_compose_name(parent, init_data, composed_name);
if (ret < 0)
return ret;
+
+ if (init_data->fwnode)
+ fwnode_property_read_string(init_data->fwnode,
+ "linux,default-trigger",
+ &led_cdev->default_trigger);
} else {
proposed_name = led_cdev->name;
}
diff --git a/drivers/leds/leds-88pm860x.c b/drivers/leds/leds-88pm860x.c
index 465c3755cf2e4a7844cc979f288d8538c56f41fa..508d0d859f2e022c25090feb01498aa81a1e8a3f 100644
--- a/drivers/leds/leds-88pm860x.c
+++ b/drivers/leds/leds-88pm860x.c
@@ -118,14 +118,14 @@ static int pm860x_led_dt_init(struct platform_device *pdev,
struct device_node *nproot, *np;
int iset = 0;
- if (!pdev->dev.parent->of_node)
+ if (!dev_of_node(pdev->dev.parent))
return -ENODEV;
- nproot = of_get_child_by_name(pdev->dev.parent->of_node, "leds");
+ nproot = of_get_child_by_name(dev_of_node(pdev->dev.parent), "leds");
if (!nproot) {
dev_err(&pdev->dev, "failed to find leds node\n");
return -ENODEV;
}
- for_each_child_of_node(nproot, np) {
+ for_each_available_child_of_node(nproot, np) {
if (of_node_name_eq(np, data->name)) {
of_property_read_u32(np, "marvell,88pm860x-iset",
&iset);
diff --git a/drivers/leds/leds-aat1290.c b/drivers/leds/leds-aat1290.c
index 5a0fe7b7b8bc7ed03bd519b60970e9386ea728f6..589484b22c796c81abc91c01dc7f8790dd3aa345 100644
--- a/drivers/leds/leds-aat1290.c
+++ b/drivers/leds/leds-aat1290.c
@@ -248,7 +248,7 @@ static int aat1290_led_parse_dt(struct aat1290_led *led,
}
#endif
- child_node = of_get_next_available_child(dev->of_node, NULL);
+ child_node = of_get_next_available_child(dev_of_node(dev), NULL);
if (!child_node) {
dev_err(dev, "No DT child node found for connected LED.\n");
return -EINVAL;
diff --git a/drivers/leds/leds-acer-a500.c b/drivers/leds/leds-acer-a500.c
new file mode 100644
index 0000000000000000000000000000000000000000..8cf0b11f439021a0579cd6d80f0f287c98e0813c
--- /dev/null
+++ b/drivers/leds/leds-acer-a500.c
@@ -0,0 +1,129 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+#include <linux/leds.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+
+#define A500_EC_LED_DELAY_USEC (100 * 1000)
+
+enum {
+ REG_RESET_LEDS = 0x40,
+ REG_POWER_LED_ON = 0x42,
+ REG_CHARGE_LED_ON = 0x43,
+ REG_ANDROID_LEDS_OFF = 0x5a,
+};
+
+struct a500_led {
+ struct led_classdev cdev;
+ const struct reg_sequence *enable_seq;
+ struct a500_led *other;
+ struct regmap *rmap;
+};
+
+static const struct reg_sequence a500_ec_leds_reset_seq[] = {
+ REG_SEQ(REG_RESET_LEDS, 0x0, A500_EC_LED_DELAY_USEC),
+ REG_SEQ(REG_ANDROID_LEDS_OFF, 0x0, A500_EC_LED_DELAY_USEC),
+};
+
+static const struct reg_sequence a500_ec_white_led_enable_seq[] = {
+ REG_SEQ(REG_POWER_LED_ON, 0x0, A500_EC_LED_DELAY_USEC),
+};
+
+static const struct reg_sequence a500_ec_orange_led_enable_seq[] = {
+ REG_SEQ(REG_CHARGE_LED_ON, 0x0, A500_EC_LED_DELAY_USEC),
+};
+
+static int a500_ec_led_brightness_set(struct led_classdev *led_cdev,
+ enum led_brightness value)
+{
+ struct a500_led *led = container_of(led_cdev, struct a500_led, cdev);
+ struct reg_sequence control_seq[2];
+ unsigned int num_regs = 1;
+
+ if (value) {
+ control_seq[0] = led->enable_seq[0];
+ } else {
+ /*
+ * There is no separate controls which can disable LEDs
+ * individually, there is only RESET_LEDS command that turns
+ * off both LEDs.
+ *
+ * RESET_LEDS turns off both LEDs, thus restore other LED if
+ * it's turned ON.
+ */
+ if (led->other->cdev.brightness)
+ num_regs = 2;
+
+ control_seq[0] = a500_ec_leds_reset_seq[0];
+ control_seq[1] = led->other->enable_seq[0];
+ }
+
+ return regmap_multi_reg_write(led->rmap, control_seq, num_regs);
+}
+
+static int a500_ec_leds_probe(struct platform_device *pdev)
+{
+ struct a500_led *white_led, *orange_led;
+ struct regmap *rmap;
+ int err;
+
+ rmap = dev_get_regmap(pdev->dev.parent, "KB930");
+ if (!rmap)
+ return -EINVAL;
+
+ /* reset and turn off LEDs */
+ regmap_multi_reg_write(rmap, a500_ec_leds_reset_seq, 2);
+
+ white_led = devm_kzalloc(&pdev->dev, sizeof(*white_led), GFP_KERNEL);
+ if (!white_led)
+ return -ENOMEM;
+
+ white_led->cdev.name = "power:white";
+ white_led->cdev.brightness_set_blocking = a500_ec_led_brightness_set;
+ white_led->cdev.flags = LED_CORE_SUSPENDRESUME;
+ white_led->cdev.max_brightness = 1;
+ white_led->enable_seq = a500_ec_white_led_enable_seq;
+ white_led->rmap = rmap;
+
+ orange_led = devm_kzalloc(&pdev->dev, sizeof(*orange_led), GFP_KERNEL);
+ if (!orange_led)
+ return -ENOMEM;
+
+ orange_led->cdev.name = "power:orange";
+ orange_led->cdev.brightness_set_blocking = a500_ec_led_brightness_set;
+ orange_led->cdev.flags = LED_CORE_SUSPENDRESUME;
+ orange_led->cdev.max_brightness = 1;
+ orange_led->enable_seq = a500_ec_orange_led_enable_seq;
+ orange_led->rmap = rmap;
+
+ white_led->other = orange_led;
+ orange_led->other = white_led;
+
+ err = devm_led_classdev_register(&pdev->dev, &white_led->cdev);
+ if (err) {
+ dev_err(&pdev->dev, "failed to register white LED\n");
+ return err;
+ }
+
+ err = devm_led_classdev_register(&pdev->dev, &orange_led->cdev);
+ if (err) {
+ dev_err(&pdev->dev, "failed to register orange LED\n");
+ return err;
+ }
+
+ return 0;
+}
+
+static struct platform_driver a500_ec_leds_driver = {
+ .driver = {
+ .name = "acer-a500-iconia-leds",
+ },
+ .probe = a500_ec_leds_probe,
+};
+module_platform_driver(a500_ec_leds_driver);
+
+MODULE_DESCRIPTION("LED driver for Acer Iconia Tab A500 Power Button");
+MODULE_AUTHOR("Dmitry Osipenko <digetx@gmail.com>");
+MODULE_ALIAS("platform:acer-a500-iconia-leds");
+MODULE_LICENSE("GPL");
diff --git a/drivers/leds/leds-an30259a.c b/drivers/leds/leds-an30259a.c
index 82350a28a56445468cb35d2b94e4be75bf7b0e25..a0df1fb28774d7e772652fe462feb499d672e2f1 100644
--- a/drivers/leds/leds-an30259a.c
+++ b/drivers/leds/leds-an30259a.c
@@ -202,13 +202,13 @@ static int an30259a_blink_set(struct led_classdev *cdev,
static int an30259a_dt_init(struct i2c_client *client,
struct an30259a *chip)
{
- struct device_node *np = client->dev.of_node, *child;
+ struct device_node *np = dev_of_node(&client->dev), *child;
int count, ret;
int i = 0;
const char *str;
struct an30259a_led *led;
- count = of_get_child_count(np);
+ count = of_get_available_child_count(np);
if (!count || count > AN30259A_MAX_LEDS)
return -EINVAL;
@@ -238,9 +238,6 @@ static int an30259a_dt_init(struct i2c_client *client,
led->default_state = STATE_OFF;
}
- of_property_read_string(child, "linux,default-trigger",
- &led->cdev.default_trigger);
-
i++;
}
diff --git a/drivers/leds/leds-aw2013.c b/drivers/leds/leds-aw2013.c
index d709cc1f949e36ec3b23697582651d4eb6a3a44e..80d937454aeef3fc953dd3dd344f28a5b3a6a95e 100644
--- a/drivers/leds/leds-aw2013.c
+++ b/drivers/leds/leds-aw2013.c
@@ -261,11 +261,11 @@ static int aw2013_blink_set(struct led_classdev *cdev,
static int aw2013_probe_dt(struct aw2013 *chip)
{
- struct device_node *np = chip->client->dev.of_node, *child;
+ struct device_node *np = dev_of_node(&chip->client->dev), *child;
int count, ret = 0, i = 0;
struct aw2013_led *led;
- count = of_get_child_count(np);
+ count = of_get_available_child_count(np);
if (!count || count > AW2013_MAX_LEDS)
return -EINVAL;
@@ -297,16 +297,15 @@ static int aw2013_probe_dt(struct aw2013 *chip)
"DT property led-max-microamp is missing\n");
}
- of_property_read_string(child, "linux,default-trigger",
- &led->cdev.default_trigger);
-
led->cdev.brightness_set_blocking = aw2013_brightness_set;
led->cdev.blink_set = aw2013_blink_set;
ret = devm_led_classdev_register_ext(&chip->client->dev,
&led->cdev, &init_data);
- if (ret < 0)
+ if (ret < 0) {
+ of_node_put(child);
return ret;
+ }
i++;
}
diff --git a/drivers/leds/leds-bcm6328.c b/drivers/leds/leds-bcm6328.c
index bad7efb751120631516ce86f483b9ec891cd013f..226d17d253ed321292ca56371148f493781ea353 100644
--- a/drivers/leds/leds-bcm6328.c
+++ b/drivers/leds/leds-bcm6328.c
@@ -328,6 +328,7 @@ static int bcm6328_led(struct device *dev, struct device_node *nc, u32 reg,
void __iomem *mem, spinlock_t *lock,
unsigned long *blink_leds, unsigned long *blink_delay)
{
+ struct led_init_data init_data = {};
struct bcm6328_led *led;
const char *state;
int rc;
@@ -345,11 +346,6 @@ static int bcm6328_led(struct device *dev, struct device_node *nc, u32 reg,
if (of_property_read_bool(nc, "active-low"))
led->active_low = true;
- led->cdev.name = of_get_property(nc, "label", NULL) ? : nc->name;
- led->cdev.default_trigger = of_get_property(nc,
- "linux,default-trigger",
- NULL);
-
if (!of_property_read_string(nc, "default-state", &state)) {
if (!strcmp(state, "on")) {
led->cdev.brightness = LED_FULL;
@@ -382,8 +378,9 @@ static int bcm6328_led(struct device *dev, struct device_node *nc, u32 reg,
led->cdev.brightness_set = bcm6328_led_set;
led->cdev.blink_set = bcm6328_blink_set;
+ init_data.fwnode = of_fwnode_handle(nc);
- rc = led_classdev_register(dev, &led->cdev);
+ rc = devm_led_classdev_register_ext(dev, &led->cdev, &init_data);
if (rc < 0)
return rc;
@@ -395,7 +392,7 @@ static int bcm6328_led(struct device *dev, struct device_node *nc, u32 reg,
static int bcm6328_leds_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
- struct device_node *np = pdev->dev.of_node;
+ struct device_node *np = dev_of_node(&pdev->dev);
struct device_node *child;
void __iomem *mem;
spinlock_t *lock; /* memory lock */
diff --git a/drivers/leds/leds-bcm6358.c b/drivers/leds/leds-bcm6358.c
index 94fefd456ba076aa61031f4cf95f0442d5ee7139..9d2e487fa08a307ab72adb9a812a4b068e37239f 100644
--- a/drivers/leds/leds-bcm6358.c
+++ b/drivers/leds/leds-bcm6358.c
@@ -94,6 +94,7 @@ static void bcm6358_led_set(struct led_classdev *led_cdev,
static int bcm6358_led(struct device *dev, struct device_node *nc, u32 reg,
void __iomem *mem, spinlock_t *lock)
{
+ struct led_init_data init_data = {};
struct bcm6358_led *led;
const char *state;
int rc;
@@ -109,11 +110,6 @@ static int bcm6358_led(struct device *dev, struct device_node *nc, u32 reg,
if (of_property_read_bool(nc, "active-low"))
led->active_low = true;
- led->cdev.name = of_get_property(nc, "label", NULL) ? : nc->name;
- led->cdev.default_trigger = of_get_property(nc,
- "linux,default-trigger",
- NULL);
-
if (!of_property_read_string(nc, "default-state", &state)) {
if (!strcmp(state, "on")) {
led->cdev.brightness = LED_FULL;
@@ -136,8 +132,9 @@ static int bcm6358_led(struct device *dev, struct device_node *nc, u32 reg,
bcm6358_led_set(&led->cdev, led->cdev.brightness);
led->cdev.brightness_set = bcm6358_led_set;
+ init_data.fwnode = of_fwnode_handle(nc);
- rc = led_classdev_register(dev, &led->cdev);
+ rc = devm_led_classdev_register_ext(dev, &led->cdev, &init_data);
if (rc < 0)
return rc;
@@ -149,7 +146,7 @@ static int bcm6358_led(struct device *dev, struct device_node *nc, u32 reg,
static int bcm6358_leds_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
- struct device_node *np = pdev->dev.of_node;
+ struct device_node *np = dev_of_node(&pdev->dev);
struct device_node *child;
void __iomem *mem;
spinlock_t *lock; /* memory lock */
diff --git a/drivers/leds/leds-cpcap.c b/drivers/leds/leds-cpcap.c
index 9f3fa47372134062ec15dc81602d09a9409cf4ee..7d41ce8c9bb1e0c8f3bcff530e5a5d34eaff0d21 100644
--- a/drivers/leds/leds-cpcap.c
+++ b/drivers/leds/leds-cpcap.c
@@ -158,19 +158,14 @@ MODULE_DEVICE_TABLE(of, cpcap_led_of_match);
static int cpcap_led_probe(struct platform_device *pdev)
{
- const struct of_device_id *match;
struct cpcap_led *led;
int err;
- match = of_match_device(of_match_ptr(cpcap_led_of_match), &pdev->dev);
- if (!match || !match->data)
- return -EINVAL;
-
led = devm_kzalloc(&pdev->dev, sizeof(*led), GFP_KERNEL);
if (!led)
return -ENOMEM;
platform_set_drvdata(pdev, led);
- led->info = match->data;
+ led->info = device_get_match_data(&pdev->dev);
led->dev = &pdev->dev;
if (led->info->reg == 0x0000) {
diff --git a/drivers/leds/leds-cr0014114.c b/drivers/leds/leds-cr0014114.c
index 2da448ae718e9b075543e108dcb683a250b61a86..d03cfd3c0bfbecd83ee65e1729cf7143ac61f800 100644
--- a/drivers/leds/leds-cr0014114.c
+++ b/drivers/leds/leds-cr0014114.c
@@ -188,9 +188,6 @@ static int cr0014114_probe_dt(struct cr0014114 *priv)
device_for_each_child_node(priv->dev, child) {
led = &priv->leds[i];
- fwnode_property_read_string(child, "linux,default-trigger",
- &led->ldev.default_trigger);
-
led->priv = priv;
led->ldev.max_brightness = CR_MAX_BRIGHTNESS;
led->ldev.brightness_set_blocking = cr0014114_set_sync;
diff --git a/drivers/leds/leds-el15203000.c b/drivers/leds/leds-el15203000.c
index 298b13e4807a82dfc5b4a3ee227be93050eee09a..6ca47f2a2004151c5bdacf8881a3fb347288f6da 100644
--- a/drivers/leds/leds-el15203000.c
+++ b/drivers/leds/leds-el15203000.c
@@ -263,9 +263,6 @@ static int el15203000_probe_dt(struct el15203000 *priv)
return -EINVAL;
}
- fwnode_property_read_string(child, "linux,default-trigger",
- &led->ldev.default_trigger);
-
led->priv = priv;
led->ldev.max_brightness = LED_ON;
led->ldev.brightness_set_blocking = el15203000_set_blocking;
diff --git a/drivers/leds/leds-gpio.c b/drivers/leds/leds-gpio.c
index cf84096d88cec55ff7ae5dca174be1923c91d9ad..93f5b1b60fdec835eec36fd1d7364450e1b0d42b 100644
--- a/drivers/leds/leds-gpio.c
+++ b/drivers/leds/leds-gpio.c
@@ -160,9 +160,6 @@ static struct gpio_leds_priv *gpio_leds_create(struct platform_device *pdev)
led_dat->gpiod = led.gpiod;
- fwnode_property_read_string(child, "linux,default-trigger",
- &led.default_trigger);
-
if (!fwnode_property_read_string(child, "default-state",
&state)) {
if (!strcmp(state, "keep"))
diff --git a/drivers/leds/leds-ip30.c b/drivers/leds/leds-ip30.c
index d4ec7361c616fc25f7aaa64de56d8601387fd3bb..1f952bad0fe865268c9e4d79a12413d6e5977f4e 100644
--- a/drivers/leds/leds-ip30.c
+++ b/drivers/leds/leds-ip30.c
@@ -3,6 +3,7 @@
* LED Driver for SGI Octane machines
*/
+#include <asm/io.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/platform_device.h>
diff --git a/drivers/leds/leds-is31fl319x.c b/drivers/leds/leds-is31fl319x.c
index ca6634b8683cb65c2bec3922f104e5d3bb0f0bfe..4161b9dd7e488271e9b9a2563da843c84fa2bb55 100644
--- a/drivers/leds/leds-is31fl319x.c
+++ b/drivers/leds/leds-is31fl319x.c
@@ -16,6 +16,8 @@
#include <linux/of_device.h>
#include <linux/regmap.h>
#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/gpio/consumer.h>
/* register numbers */
#define IS31FL319X_SHUTDOWN 0x00
@@ -61,6 +63,7 @@
struct is31fl319x_chip {
const struct is31fl319x_chipdef *cdef;
struct i2c_client *client;
+ struct gpio_desc *shutdown_gpio;
struct regmap *regmap;
struct mutex lock;
u32 audio_gain_db;
@@ -199,26 +202,27 @@ static int is31fl319x_parse_child_dt(const struct device *dev,
static int is31fl319x_parse_dt(struct device *dev,
struct is31fl319x_chip *is31)
{
- struct device_node *np = dev->of_node, *child;
- const struct of_device_id *of_dev_id;
+ struct device_node *np = dev_of_node(dev), *child;
int count;
int ret;
if (!np)
return -ENODEV;
- of_dev_id = of_match_device(of_is31fl319x_match, dev);
- if (!of_dev_id) {
- dev_err(dev, "Failed to match device with supported chips\n");
- return -EINVAL;
+ is31->shutdown_gpio = devm_gpiod_get_optional(dev,
+ "shutdown",
+ GPIOD_OUT_HIGH);
+ if (IS_ERR(is31->shutdown_gpio)) {
+ ret = PTR_ERR(is31->shutdown_gpio);
+ dev_err(dev, "Failed to get shutdown gpio: %d\n", ret);
+ return ret;
}
- is31->cdef = of_dev_id->data;
+ is31->cdef = device_get_match_data(dev);
- count = of_get_child_count(np);
+ count = of_get_available_child_count(np);
- dev_dbg(dev, "probe %s with %d leds defined in DT\n",
- of_dev_id->compatible, count);
+ dev_dbg(dev, "probing with %d leds defined in DT\n", count);
if (!count || count > is31->cdef->num_leds) {
dev_err(dev, "Number of leds defined must be between 1 and %u\n",
@@ -226,7 +230,7 @@ static int is31fl319x_parse_dt(struct device *dev,
return -ENODEV;
}
- for_each_child_of_node(np, child) {
+ for_each_available_child_of_node(np, child) {
struct is31fl319x_led *led;
u32 reg;
@@ -350,6 +354,12 @@ static int is31fl319x_probe(struct i2c_client *client,
if (err)
goto free_mutex;
+ if (is31->shutdown_gpio) {
+ gpiod_direction_output(is31->shutdown_gpio, 0);
+ mdelay(5);
+ gpiod_direction_output(is31->shutdown_gpio, 1);
+ }
+
is31->client = client;
is31->regmap = devm_regmap_init_i2c(client, ®map_config);
if (IS_ERR(is31->regmap)) {
diff --git a/drivers/leds/leds-is31fl32xx.c b/drivers/leds/leds-is31fl32xx.c
index cd768f991da1045acca8c26aece397c6127c7ac7..2180255ad339336b828b726c46c25815b59d0125 100644
--- a/drivers/leds/leds-is31fl32xx.c
+++ b/drivers/leds/leds-is31fl32xx.c
@@ -332,9 +332,6 @@ static int is31fl32xx_parse_child_dt(const struct device *dev,
int ret = 0;
u32 reg;
- if (of_property_read_string(child, "label", &cdev->name))
- cdev->name = child->name;
-
ret = of_property_read_u32(child, "reg", ®);
if (ret || reg < 1 || reg > led_data->priv->cdef->channels) {
dev_err(dev,
@@ -344,9 +341,6 @@ static int is31fl32xx_parse_child_dt(const struct device *dev,
}
led_data->channel = reg;
- of_property_read_string(child, "linux,default-trigger",
- &cdev->default_trigger);
-
cdev->brightness_set_blocking = is31fl32xx_brightness_set;
return 0;
@@ -372,7 +366,8 @@ static int is31fl32xx_parse_dt(struct device *dev,
struct device_node *child;
int ret = 0;
- for_each_child_of_node(dev->of_node, child) {
+ for_each_available_child_of_node(dev_of_node(dev), child) {
+ struct led_init_data init_data = {};
struct is31fl32xx_led_data *led_data =
&priv->leds[priv->num_leds];
const struct is31fl32xx_led_data *other_led_data;
@@ -388,17 +383,18 @@ static int is31fl32xx_parse_dt(struct device *dev,
led_data->channel);
if (other_led_data) {
dev_err(dev,
- "%s and %s both attempting to use channel %d\n",
- led_data->cdev.name,
- other_led_data->cdev.name,
- led_data->channel);
+ "Node %pOF 'reg' conflicts with another LED\n",
+ child);
goto err;
}
- ret = devm_led_classdev_register(dev, &led_data->cdev);
+ init_data.fwnode = of_fwnode_handle(child);
+
+ ret = devm_led_classdev_register_ext(dev, &led_data->cdev,
+ &init_data);
if (ret) {
- dev_err(dev, "failed to register PWM led for %s: %d\n",
- led_data->cdev.name, ret);
+ dev_err(dev, "Failed to register LED for %pOF: %d\n",
+ child, ret);
goto err;
}
@@ -428,19 +424,14 @@ static int is31fl32xx_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
const struct is31fl32xx_chipdef *cdef;
- const struct of_device_id *of_dev_id;
struct device *dev = &client->dev;
struct is31fl32xx_priv *priv;
int count;
int ret = 0;
- of_dev_id = of_match_device(of_is31fl32xx_match, dev);
- if (!of_dev_id)
- return -EINVAL;
-
- cdef = of_dev_id->data;
+ cdef = device_get_match_data(dev);
- count = of_get_child_count(dev->of_node);
+ count = of_get_available_child_count(dev_of_node(dev));
if (!count)
return -EINVAL;
diff --git a/drivers/leds/leds-ktd2692.c b/drivers/leds/leds-ktd2692.c
index 670efee9b1317affa4eb80d2c4f8866223e96cdf..632f10db4b3ff5509663af940f8df43f7a11f371 100644
--- a/drivers/leds/leds-ktd2692.c
+++ b/drivers/leds/leds-ktd2692.c
@@ -259,11 +259,11 @@ static void ktd2692_setup(struct ktd2692_context *led)
static int ktd2692_parse_dt(struct ktd2692_context *led, struct device *dev,
struct ktd2692_led_config_data *cfg)
{
- struct device_node *np = dev->of_node;
+ struct device_node *np = dev_of_node(dev);
struct device_node *child_node;
int ret;
- if (!dev->of_node)
+ if (!dev_of_node(dev))
return -ENXIO;
led->ctrl_gpio = devm_gpiod_get(dev, "ctrl", GPIOD_ASIS);
diff --git a/drivers/leds/leds-lm3532.c b/drivers/leds/leds-lm3532.c
index 946ad67eaecb73ac607a73bed90602c886cc543a..0bf25bdde02f2bd55025aaf8e4ab10b63c8010a6 100644
--- a/drivers/leds/leds-lm3532.c
+++ b/drivers/leds/leds-lm3532.c
@@ -96,15 +96,15 @@
/*
* struct lm3532_als_data
- * @config - value of ALS configuration register
- * @als1_imp_sel - value of ALS1 resistor select register
- * @als2_imp_sel - value of ALS2 resistor select register
- * @als_avrg_time - ALS averaging time
- * @als_input_mode - ALS input mode for brightness control
- * @als_vmin - Minimum ALS voltage
- * @als_vmax - Maximum ALS voltage
- * @zone_lo - values of ALS lo ZB(Zone Boundary) registers
- * @zone_hi - values of ALS hi ZB(Zone Boundary) registers
+ * @config: value of ALS configuration register
+ * @als1_imp_sel: value of ALS1 resistor select register
+ * @als2_imp_sel: value of ALS2 resistor select register
+ * @als_avrg_time: ALS averaging time
+ * @als_input_mode: ALS input mode for brightness control
+ * @als_vmin: Minimum ALS voltage
+ * @als_vmax: Maximum ALS voltage
+ * @zone_lo: values of ALS lo ZB(Zone Boundary) registers
+ * @zone_hi: values of ALS hi ZB(Zone Boundary) registers
*/
struct lm3532_als_data {
u8 config;
@@ -121,15 +121,14 @@ struct lm3532_als_data {
/**
* struct lm3532_led
* @led_dev: led class device
- * @priv - Pointer the device data structure
- * @control_bank - Control bank the LED is associated to
- * @mode - Mode of the LED string
- * @ctrl_brt_pointer - Zone target register that controls the sink
- * @num_leds - Number of LED strings are supported in this array
- * @full_scale_current - The full-scale current setting for the current sink.
- * @led_strings - The LED strings supported in this array
- * @enabled - Enabled status
- * @label - LED label
+ * @priv: Pointer the device data structure
+ * @control_bank: Control bank the LED is associated to
+ * @mode: Mode of the LED string
+ * @ctrl_brt_pointer: Zone target register that controls the sink
+ * @num_leds: Number of LED strings are supported in this array
+ * @full_scale_current: The full-scale current setting for the current sink.
+ * @led_strings: The LED strings supported in this array
+ * @enabled: Enabled status
*/
struct lm3532_led {
struct led_classdev led_dev;
@@ -142,21 +141,20 @@ struct lm3532_led {
int full_scale_current;
unsigned int enabled:1;
u32 led_strings[LM3532_MAX_CONTROL_BANKS];
- char label[LED_MAX_NAME_SIZE];
};
/**
* struct lm3532_data
- * @enable_gpio - Hardware enable gpio
+ * @enable_gpio: Hardware enable gpio
* @regulator: regulator
* @client: i2c client
- * @regmap - Devices register map
- * @dev - Pointer to the devices device struct
- * @lock - Lock for reading/writing the device
- * @als_data - Pointer to the als data struct
- * @runtime_ramp_up - Runtime ramp up setting
- * @runtime_ramp_down - Runtime ramp down setting
- * @leds - Array of LED strings
+ * @regmap: Devices register map
+ * @dev: Pointer to the devices device struct
+ * @lock: Lock for reading/writing the device
+ * @als_data: Pointer to the als data struct
+ * @runtime_ramp_up: Runtime ramp up setting
+ * @runtime_ramp_down: Runtime ramp down setting
+ * @leds: Array of LED strings
*/
struct lm3532_data {
struct gpio_desc *enable_gpio;
@@ -548,7 +546,6 @@ static int lm3532_parse_node(struct lm3532_data *priv)
{
struct fwnode_handle *child = NULL;
struct lm3532_led *led;
- const char *name;
int control_bank;
u32 ramp_time;
size_t i = 0;
@@ -643,19 +640,7 @@ static int lm3532_parse_node(struct lm3532_data *priv)
goto child_out;
}
- fwnode_property_read_string(child, "linux,default-trigger",
- &led->led_dev.default_trigger);
-
- ret = fwnode_property_read_string(child, "label", &name);
- if (ret)
- snprintf(led->label, sizeof(led->label),
- "%s::", priv->client->name);
- else
- snprintf(led->label, sizeof(led->label),
- "%s:%s", priv->client->name, name);
-
led->priv = priv;
- led->led_dev.name = led->label;
led->led_dev.brightness_set_blocking = lm3532_brightness_set;
ret = devm_led_classdev_register_ext(priv->dev, &led->led_dev, &idata);
diff --git a/drivers/leds/leds-lm36274.c b/drivers/leds/leds-lm36274.c
index bfeee03a0053cf735c188ce240f12eebf1bddf2c..aadb03468a40a00e930ecb0983cd7bf6f36bbdc5 100644
--- a/drivers/leds/leds-lm36274.c
+++ b/drivers/leds/leds-lm36274.c
@@ -26,8 +26,8 @@
* @lmu_data: Register and setting values for common code
* @regmap: Devices register map
* @dev: Pointer to the devices device struct
- * @led_sources - The LED strings supported in this array
- * @num_leds - Number of LED strings are supported in this array
+ * @led_sources: The LED strings supported in this array
+ * @num_leds: Number of LED strings are supported in this array
*/
struct lm36274 {
struct platform_device *pdev;
@@ -41,122 +41,113 @@ struct lm36274 {
};
static int lm36274_brightness_set(struct led_classdev *led_cdev,
- enum led_brightness brt_val)
+ enum led_brightness brt_val)
{
- struct lm36274 *led = container_of(led_cdev, struct lm36274, led_dev);
+ struct lm36274 *chip = container_of(led_cdev, struct lm36274, led_dev);
- return ti_lmu_common_set_brightness(&led->lmu_data, brt_val);
+ return ti_lmu_common_set_brightness(&chip->lmu_data, brt_val);
}
-static int lm36274_init(struct lm36274 *lm36274_data)
+static int lm36274_init(struct lm36274 *chip)
{
int enable_val = 0;
int i;
- for (i = 0; i < lm36274_data->num_leds; i++)
- enable_val |= (1 << lm36274_data->led_sources[i]);
+ for (i = 0; i < chip->num_leds; i++)
+ enable_val |= (1 << chip->led_sources[i]);
if (!enable_val) {
- dev_err(lm36274_data->dev, "No LEDs were enabled\n");
+ dev_err(chip->dev, "No LEDs were enabled\n");
return -EINVAL;
}
enable_val |= LM36274_BL_EN;
- return regmap_write(lm36274_data->regmap, LM36274_REG_BL_EN,
- enable_val);
+ return regmap_write(chip->regmap, LM36274_REG_BL_EN, enable_val);
}
-static int lm36274_parse_dt(struct lm36274 *lm36274_data)
+static int lm36274_parse_dt(struct lm36274 *chip,
+ struct led_init_data *init_data)
{
- struct fwnode_handle *child = NULL;
- char label[LED_MAX_NAME_SIZE];
- struct device *dev = &lm36274_data->pdev->dev;
- const char *name;
- int child_cnt;
- int ret = -EINVAL;
+ struct device *dev = chip->dev;
+ struct fwnode_handle *child;
+ int ret;
/* There should only be 1 node */
- child_cnt = device_get_child_node_count(dev);
- if (child_cnt != 1)
+ if (device_get_child_node_count(dev) != 1)
return -EINVAL;
- device_for_each_child_node(dev, child) {
- ret = fwnode_property_read_string(child, "label", &name);
- if (ret)
- snprintf(label, sizeof(label),
- "%s::", lm36274_data->pdev->name);
- else
- snprintf(label, sizeof(label),
- "%s:%s", lm36274_data->pdev->name, name);
-
- lm36274_data->num_leds = fwnode_property_count_u32(child, "led-sources");
- if (lm36274_data->num_leds <= 0)
- return -ENODEV;
-
- ret = fwnode_property_read_u32_array(child, "led-sources",
- lm36274_data->led_sources,
- lm36274_data->num_leds);
- if (ret) {
- dev_err(dev, "led-sources property missing\n");
- return ret;
- }
-
- fwnode_property_read_string(child, "linux,default-trigger",
- &lm36274_data->led_dev.default_trigger);
+ child = device_get_next_child_node(dev, NULL);
- }
+ init_data->fwnode = child;
+ init_data->devicename = chip->pdev->name;
+ /* for backwards compatibility when `label` property is not present */
+ init_data->default_label = ":";
- lm36274_data->lmu_data.regmap = lm36274_data->regmap;
- lm36274_data->lmu_data.max_brightness = MAX_BRIGHTNESS_11BIT;
- lm36274_data->lmu_data.msb_brightness_reg = LM36274_REG_BRT_MSB;
- lm36274_data->lmu_data.lsb_brightness_reg = LM36274_REG_BRT_LSB;
+ chip->num_leds = fwnode_property_count_u32(child, "led-sources");
+ if (chip->num_leds <= 0) {
+ ret = -ENODEV;
+ goto err;
+ }
- lm36274_data->led_dev.name = label;
- lm36274_data->led_dev.max_brightness = MAX_BRIGHTNESS_11BIT;
- lm36274_data->led_dev.brightness_set_blocking = lm36274_brightness_set;
+ ret = fwnode_property_read_u32_array(child, "led-sources",
+ chip->led_sources, chip->num_leds);
+ if (ret) {
+ dev_err(dev, "led-sources property missing\n");
+ goto err;
+ }
return 0;
+err:
+ fwnode_handle_put(child);
+ return ret;
}
static int lm36274_probe(struct platform_device *pdev)
{
struct ti_lmu *lmu = dev_get_drvdata(pdev->dev.parent);
- struct lm36274 *lm36274_data;
+ struct led_init_data init_data = {};
+ struct lm36274 *chip;
int ret;
- lm36274_data = devm_kzalloc(&pdev->dev, sizeof(*lm36274_data),
- GFP_KERNEL);
- if (!lm36274_data)
+ chip = devm_kzalloc(&pdev->dev, sizeof(*chip), GFP_KERNEL);
+ if (!chip)
return -ENOMEM;
- lm36274_data->pdev = pdev;
- lm36274_data->dev = lmu->dev;
- lm36274_data->regmap = lmu->regmap;
- platform_set_drvdata(pdev, lm36274_data);
+ chip->pdev = pdev;
+ chip->dev = &pdev->dev;
+ chip->regmap = lmu->regmap;
+ platform_set_drvdata(pdev, chip);
- ret = lm36274_parse_dt(lm36274_data);
+ ret = lm36274_parse_dt(chip, &init_data);
if (ret) {
- dev_err(lm36274_data->dev, "Failed to parse DT node\n");
+ dev_err(chip->dev, "Failed to parse DT node\n");
return ret;
}
- ret = lm36274_init(lm36274_data);
+ ret = lm36274_init(chip);
if (ret) {
- dev_err(lm36274_data->dev, "Failed to init the device\n");
+ dev_err(chip->dev, "Failed to init the device\n");
return ret;
}
- return led_classdev_register(lm36274_data->dev, &lm36274_data->led_dev);
-}
+ chip->lmu_data.regmap = chip->regmap;
+ chip->lmu_data.max_brightness = MAX_BRIGHTNESS_11BIT;
+ chip->lmu_data.msb_brightness_reg = LM36274_REG_BRT_MSB;
+ chip->lmu_data.lsb_brightness_reg = LM36274_REG_BRT_LSB;
-static int lm36274_remove(struct platform_device *pdev)
-{
- struct lm36274 *lm36274_data = platform_get_drvdata(pdev);
+ chip->led_dev.max_brightness = MAX_BRIGHTNESS_11BIT;
+ chip->led_dev.brightness_set_blocking = lm36274_brightness_set;
- led_classdev_unregister(&lm36274_data->led_dev);
+ ret = devm_led_classdev_register_ext(chip->dev, &chip->led_dev,
+ &init_data);
+ if (ret)
+ dev_err(chip->dev, "Failed to register LED for node %pfw\n",
+ init_data.fwnode);
- return 0;
+ fwnode_handle_put(init_data.fwnode);
+
+ return ret;
}
static const struct of_device_id of_lm36274_leds_match[] = {
@@ -167,9 +158,9 @@ MODULE_DEVICE_TABLE(of, of_lm36274_leds_match);
static struct platform_driver lm36274_driver = {
.probe = lm36274_probe,
- .remove = lm36274_remove,
.driver = {
.name = "lm36274-leds",
+ .of_match_table = of_lm36274_leds_match,
},
};
module_platform_driver(lm36274_driver)
diff --git a/drivers/leds/leds-lm3692x.c b/drivers/leds/leds-lm3692x.c
index e1e2d2b64a566c8216151fc897d17bc59ac40730..e945de45388ca75dcbcf6c9565a7c45bd953c57b 100644
--- a/drivers/leds/leds-lm3692x.c
+++ b/drivers/leds/leds-lm3692x.c
@@ -394,13 +394,10 @@ static int lm3692x_probe_dt(struct lm3692x_led *led)
led->regulator = devm_regulator_get_optional(&led->client->dev, "vled");
if (IS_ERR(led->regulator)) {
ret = PTR_ERR(led->regulator);
- if (ret != -ENODEV) {
- if (ret != -EPROBE_DEFER)
- dev_err(&led->client->dev,
- "Failed to get vled regulator: %d\n",
- ret);
- return ret;
- }
+ if (ret != -ENODEV)
+ return dev_err_probe(&led->client->dev, ret,
+ "Failed to get vled regulator\n");
+
led->regulator = NULL;
}
@@ -436,9 +433,6 @@ static int lm3692x_probe_dt(struct lm3692x_led *led)
return -ENODEV;
}
- fwnode_property_read_string(child, "linux,default-trigger",
- &led->led_dev.default_trigger);
-
ret = fwnode_property_read_u32(child, "reg", &led->led_enable);
if (ret) {
dev_err(&led->client->dev, "reg DT property missing\n");
diff --git a/drivers/leds/leds-lm3697.c b/drivers/leds/leds-lm3697.c
index 024983088d599d47b4803f39fcea40658dbdc878..7d216cdb91a8abe587d2d9ad1e72ff8260595f4b 100644
--- a/drivers/leds/leds-lm3697.c
+++ b/drivers/leds/leds-lm3697.c
@@ -78,6 +78,7 @@ struct lm3697 {
struct mutex lock;
int bank_cfg;
+ int num_banks;
struct lm3697_led leds[];
};
@@ -115,6 +116,7 @@ static int lm3697_brightness_set(struct led_classdev *led_cdev,
struct lm3697_led *led = container_of(led_cdev, struct lm3697_led,
led_dev);
int ctrl_en_val = (1 << led->control_bank);
+ struct device *dev = led->priv->dev;
int ret;
mutex_lock(&led->priv->lock);
@@ -123,7 +125,7 @@ static int lm3697_brightness_set(struct led_classdev *led_cdev,
ret = regmap_update_bits(led->priv->regmap, LM3697_CTRL_ENABLE,
ctrl_en_val, ~ctrl_en_val);
if (ret) {
- dev_err(&led->priv->client->dev, "Cannot write ctrl register\n");
+ dev_err(dev, "Cannot write ctrl register\n");
goto brightness_out;
}
@@ -131,8 +133,7 @@ static int lm3697_brightness_set(struct led_classdev *led_cdev,
} else {
ret = ti_lmu_common_set_brightness(&led->lmu_data, brt_val);
if (ret) {
- dev_err(&led->priv->client->dev,
- "Cannot write brightness\n");
+ dev_err(dev, "Cannot write brightness\n");
goto brightness_out;
}
@@ -141,8 +142,7 @@ static int lm3697_brightness_set(struct led_classdev *led_cdev,
LM3697_CTRL_ENABLE,
ctrl_en_val, ctrl_en_val);
if (ret) {
- dev_err(&led->priv->client->dev,
- "Cannot enable the device\n");
+ dev_err(dev, "Cannot enable the device\n");
goto brightness_out;
}
@@ -157,6 +157,7 @@ static int lm3697_brightness_set(struct led_classdev *led_cdev,
static int lm3697_init(struct lm3697 *priv)
{
+ struct device *dev = priv->dev;
struct lm3697_led *led;
int i, ret;
@@ -165,26 +166,26 @@ static int lm3697_init(struct lm3697 *priv)
} else {
ret = regmap_write(priv->regmap, LM3697_RESET, LM3697_SW_RESET);
if (ret) {
- dev_err(&priv->client->dev, "Cannot reset the device\n");
+ dev_err(dev, "Cannot reset the device\n");
goto out;
}
}
ret = regmap_write(priv->regmap, LM3697_CTRL_ENABLE, 0x0);
if (ret) {
- dev_err(&priv->client->dev, "Cannot write ctrl enable\n");
+ dev_err(dev, "Cannot write ctrl enable\n");
goto out;
}
ret = regmap_write(priv->regmap, LM3697_OUTPUT_CONFIG, priv->bank_cfg);
if (ret)
- dev_err(&priv->client->dev, "Cannot write OUTPUT config\n");
+ dev_err(dev, "Cannot write OUTPUT config\n");
- for (i = 0; i < LM3697_MAX_CONTROL_BANKS; i++) {
+ for (i = 0; i < priv->num_banks; i++) {
led = &priv->leds[i];
ret = ti_lmu_common_set_ramp(&led->lmu_data);
if (ret)
- dev_err(&priv->client->dev, "Setting the ramp rate failed\n");
+ dev_err(dev, "Setting the ramp rate failed\n");
}
out:
return ret;
@@ -193,36 +194,37 @@ static int lm3697_init(struct lm3697 *priv)
static int lm3697_probe_dt(struct lm3697 *priv)
{
struct fwnode_handle *child = NULL;
+ struct device *dev = priv->dev;
struct lm3697_led *led;
- const char *name;
+ int ret = -EINVAL;
int control_bank;
size_t i = 0;
- int ret = -EINVAL;
int j;
- priv->enable_gpio = devm_gpiod_get_optional(&priv->client->dev,
- "enable", GPIOD_OUT_LOW);
+ priv->enable_gpio = devm_gpiod_get_optional(dev, "enable",
+ GPIOD_OUT_LOW);
if (IS_ERR(priv->enable_gpio)) {
ret = PTR_ERR(priv->enable_gpio);
- dev_err(&priv->client->dev, "Failed to get enable gpio: %d\n",
- ret);
+ dev_err(dev, "Failed to get enable gpio: %d\n", ret);
return ret;
}
- priv->regulator = devm_regulator_get(&priv->client->dev, "vled");
+ priv->regulator = devm_regulator_get(dev, "vled");
if (IS_ERR(priv->regulator))
priv->regulator = NULL;
- device_for_each_child_node(priv->dev, child) {
+ device_for_each_child_node(dev, child) {
+ struct led_init_data init_data = {};
+
ret = fwnode_property_read_u32(child, "reg", &control_bank);
if (ret) {
- dev_err(&priv->client->dev, "reg property missing\n");
+ dev_err(dev, "reg property missing\n");
fwnode_handle_put(child);
goto child_out;
}
if (control_bank > LM3697_CONTROL_B) {
- dev_err(&priv->client->dev, "reg property is invalid\n");
+ dev_err(dev, "reg property is invalid\n");
ret = -EINVAL;
fwnode_handle_put(child);
goto child_out;
@@ -230,10 +232,10 @@ static int lm3697_probe_dt(struct lm3697 *priv)
led = &priv->leds[i];
- ret = ti_lmu_common_get_brt_res(&priv->client->dev,
- child, &led->lmu_data);
+ ret = ti_lmu_common_get_brt_res(dev, child, &led->lmu_data);
if (ret)
- dev_warn(&priv->client->dev, "brightness resolution property missing\n");
+ dev_warn(dev,
+ "brightness resolution property missing\n");
led->control_bank = control_bank;
led->lmu_data.regmap = priv->regmap;
@@ -246,7 +248,7 @@ static int lm3697_probe_dt(struct lm3697 *priv)
led->num_leds = fwnode_property_count_u32(child, "led-sources");
if (led->num_leds > LM3697_MAX_LED_STRINGS) {
- dev_err(&priv->client->dev, "Too many LED strings defined\n");
+ dev_err(dev, "Too many LED strings defined\n");
continue;
}
@@ -254,7 +256,7 @@ static int lm3697_probe_dt(struct lm3697 *priv)
led->hvled_strings,
led->num_leds);
if (ret) {
- dev_err(&priv->client->dev, "led-sources property missing\n");
+ dev_err(dev, "led-sources property missing\n");
fwnode_handle_put(child);
goto child_out;
}
@@ -263,31 +265,23 @@ static int lm3697_probe_dt(struct lm3697 *priv)
priv->bank_cfg |=
(led->control_bank << led->hvled_strings[j]);
- ret = ti_lmu_common_get_ramp_params(&priv->client->dev,
- child, &led->lmu_data);
+ ret = ti_lmu_common_get_ramp_params(dev, child, &led->lmu_data);
if (ret)
- dev_warn(&priv->client->dev, "runtime-ramp properties missing\n");
+ dev_warn(dev, "runtime-ramp properties missing\n");
- fwnode_property_read_string(child, "linux,default-trigger",
- &led->led_dev.default_trigger);
-
- ret = fwnode_property_read_string(child, "label", &name);
- if (ret)
- snprintf(led->label, sizeof(led->label),
- "%s::", priv->client->name);
- else
- snprintf(led->label, sizeof(led->label),
- "%s:%s", priv->client->name, name);
+ init_data.fwnode = child;
+ init_data.devicename = priv->client->name;
+ /* for backwards compatibility if `label` is not present */
+ init_data.default_label = ":";
led->priv = priv;
- led->led_dev.name = led->label;
led->led_dev.max_brightness = led->lmu_data.max_brightness;
led->led_dev.brightness_set_blocking = lm3697_brightness_set;
- ret = devm_led_classdev_register(priv->dev, &led->led_dev);
+ ret = devm_led_classdev_register_ext(dev, &led->led_dev,
+ &init_data);
if (ret) {
- dev_err(&priv->client->dev, "led register err: %d\n",
- ret);
+ dev_err(dev, "led register err: %d\n", ret);
fwnode_handle_put(child);
goto child_out;
}
@@ -302,18 +296,18 @@ static int lm3697_probe_dt(struct lm3697 *priv)
static int lm3697_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
+ struct device *dev = &client->dev;
struct lm3697 *led;
int count;
int ret;
- count = device_get_child_node_count(&client->dev);
- if (!count) {
- dev_err(&client->dev, "LEDs are not defined in device tree!");
+ count = device_get_child_node_count(dev);
+ if (!count || count > LM3697_MAX_CONTROL_BANKS) {
+ dev_err(dev, "Strange device tree!");
return -ENODEV;
}
- led = devm_kzalloc(&client->dev, struct_size(led, leds, count),
- GFP_KERNEL);
+ led = devm_kzalloc(dev, struct_size(led, leds, count), GFP_KERNEL);
if (!led)
return -ENOMEM;
@@ -321,12 +315,12 @@ static int lm3697_probe(struct i2c_client *client,
i2c_set_clientdata(client, led);
led->client = client;
- led->dev = &client->dev;
+ led->dev = dev;
+ led->num_banks = count;
led->regmap = devm_regmap_init_i2c(client, &lm3697_regmap_config);
if (IS_ERR(led->regmap)) {
ret = PTR_ERR(led->regmap);
- dev_err(&client->dev, "Failed to allocate register map: %d\n",
- ret);
+ dev_err(dev, "Failed to allocate register map: %d\n", ret);
return ret;
}
@@ -340,12 +334,13 @@ static int lm3697_probe(struct i2c_client *client,
static int lm3697_remove(struct i2c_client *client)
{
struct lm3697 *led = i2c_get_clientdata(client);
+ struct device *dev = &led->client->dev;
int ret;
ret = regmap_update_bits(led->regmap, LM3697_CTRL_ENABLE,
LM3697_CTRL_A_B_EN, 0);
if (ret) {
- dev_err(&led->client->dev, "Failed to disable the device\n");
+ dev_err(dev, "Failed to disable the device\n");
return ret;
}
@@ -355,8 +350,7 @@ static int lm3697_remove(struct i2c_client *client)
if (led->regulator) {
ret = regulator_disable(led->regulator);
if (ret)
- dev_err(&led->client->dev,
- "Failed to disable regulator\n");
+ dev_err(dev, "Failed to disable regulator\n");
}
mutex_destroy(&led->lock);
diff --git a/drivers/leds/leds-lp50xx.c b/drivers/leds/leds-lp50xx.c
new file mode 100644
index 0000000000000000000000000000000000000000..5fb4f24aeb2e86d98a36a07782596262af7dc0ec
--- /dev/null
+++ b/drivers/leds/leds-lp50xx.c
@@ -0,0 +1,631 @@
+// SPDX-License-Identifier: GPL-2.0
+// TI LP50XX LED chip family driver
+// Copyright (C) 2018-20 Texas Instruments Incorporated - https://www.ti.com/
+
+#include <linux/gpio/consumer.h>
+#include <linux/i2c.h>
+#include <linux/init.h>
+#include <linux/leds.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/of.h>
+#include <linux/of_gpio.h>
+#include <linux/regmap.h>
+#include <linux/regulator/consumer.h>
+#include <linux/slab.h>
+#include <uapi/linux/uleds.h>
+
+#include <linux/led-class-multicolor.h>
+
+#include "leds.h"
+
+#define LP50XX_DEV_CFG0 0x00
+#define LP50XX_DEV_CFG1 0x01
+#define LP50XX_LED_CFG0 0x02
+
+/* LP5009 and LP5012 registers */
+#define LP5012_BNK_BRT 0x03
+#define LP5012_BNKA_CLR 0x04
+#define LP5012_BNKB_CLR 0x05
+#define LP5012_BNKC_CLR 0x06
+#define LP5012_LED0_BRT 0x07
+#define LP5012_OUT0_CLR 0x0b
+#define LP5012_RESET 0x17
+
+/* LP5018 and LP5024 registers */
+#define LP5024_BNK_BRT 0x03
+#define LP5024_BNKA_CLR 0x04
+#define LP5024_BNKB_CLR 0x05
+#define LP5024_BNKC_CLR 0x06
+#define LP5024_LED0_BRT 0x07
+#define LP5024_OUT0_CLR 0x0f
+#define LP5024_RESET 0x27
+
+/* LP5030 and LP5036 registers */
+#define LP5036_LED_CFG1 0x03
+#define LP5036_BNK_BRT 0x04
+#define LP5036_BNKA_CLR 0x05
+#define LP5036_BNKB_CLR 0x06
+#define LP5036_BNKC_CLR 0x07
+#define LP5036_LED0_BRT 0x08
+#define LP5036_OUT0_CLR 0x14
+#define LP5036_RESET 0x38
+
+#define LP50XX_SW_RESET 0xff
+#define LP50XX_CHIP_EN BIT(6)
+
+/* There are 3 LED outputs per bank */
+#define LP50XX_LEDS_PER_MODULE 3
+
+#define LP5009_MAX_LED_MODULES 2
+#define LP5012_MAX_LED_MODULES 4
+#define LP5018_MAX_LED_MODULES 6
+#define LP5024_MAX_LED_MODULES 8
+#define LP5030_MAX_LED_MODULES 10
+#define LP5036_MAX_LED_MODULES 12
+
+static const struct reg_default lp5012_reg_defs[] = {
+ {LP50XX_DEV_CFG0, 0x0},
+ {LP50XX_DEV_CFG1, 0x3c},
+ {LP50XX_LED_CFG0, 0x0},
+ {LP5012_BNK_BRT, 0xff},
+ {LP5012_BNKA_CLR, 0x0f},
+ {LP5012_BNKB_CLR, 0x0f},
+ {LP5012_BNKC_CLR, 0x0f},
+ {LP5012_LED0_BRT, 0x0f},
+ /* LEDX_BRT registers are all 0xff for defaults */
+ {0x08, 0xff}, {0x09, 0xff}, {0x0a, 0xff},
+ {LP5012_OUT0_CLR, 0x0f},
+ /* OUTX_CLR registers are all 0x0 for defaults */
+ {0x0c, 0x00}, {0x0d, 0x00}, {0x0e, 0x00}, {0x0f, 0x00}, {0x10, 0x00},
+ {0x11, 0x00}, {0x12, 0x00}, {0x13, 0x00}, {0x14, 0x00}, {0x15, 0x00},
+ {0x16, 0x00},
+ {LP5012_RESET, 0x00}
+};
+
+static const struct reg_default lp5024_reg_defs[] = {
+ {LP50XX_DEV_CFG0, 0x0},
+ {LP50XX_DEV_CFG1, 0x3c},
+ {LP50XX_LED_CFG0, 0x0},
+ {LP5024_BNK_BRT, 0xff},
+ {LP5024_BNKA_CLR, 0x0f},
+ {LP5024_BNKB_CLR, 0x0f},
+ {LP5024_BNKC_CLR, 0x0f},
+ {LP5024_LED0_BRT, 0x0f},
+ /* LEDX_BRT registers are all 0xff for defaults */
+ {0x08, 0xff}, {0x09, 0xff}, {0x0a, 0xff}, {0x0b, 0xff}, {0x0c, 0xff},
+ {0x0d, 0xff}, {0x0e, 0xff},
+ {LP5024_OUT0_CLR, 0x0f},
+ /* OUTX_CLR registers are all 0x0 for defaults */
+ {0x10, 0x00}, {0x11, 0x00}, {0x12, 0x00}, {0x13, 0x00}, {0x14, 0x00},
+ {0x15, 0x00}, {0x16, 0x00}, {0x17, 0x00}, {0x18, 0x00}, {0x19, 0x00},
+ {0x1a, 0x00}, {0x1b, 0x00}, {0x1c, 0x00}, {0x1d, 0x00}, {0x1e, 0x00},
+ {0x1f, 0x00}, {0x20, 0x00}, {0x21, 0x00}, {0x22, 0x00}, {0x23, 0x00},
+ {0x24, 0x00}, {0x25, 0x00}, {0x26, 0x00},
+ {LP5024_RESET, 0x00}
+};
+
+static const struct reg_default lp5036_reg_defs[] = {
+ {LP50XX_DEV_CFG0, 0x0},
+ {LP50XX_DEV_CFG1, 0x3c},
+ {LP50XX_LED_CFG0, 0x0},
+ {LP5036_LED_CFG1, 0x0},
+ {LP5036_BNK_BRT, 0xff},
+ {LP5036_BNKA_CLR, 0x0f},
+ {LP5036_BNKB_CLR, 0x0f},
+ {LP5036_BNKC_CLR, 0x0f},
+ {LP5036_LED0_BRT, 0x0f},
+ /* LEDX_BRT registers are all 0xff for defaults */
+ {0x08, 0xff}, {0x09, 0xff}, {0x0a, 0xff}, {0x0b, 0xff}, {0x0c, 0xff},
+ {0x0d, 0xff}, {0x0e, 0xff}, {0x0f, 0xff}, {0x10, 0xff}, {0x11, 0xff},
+ {0x12, 0xff}, {0x13, 0xff},
+ {LP5036_OUT0_CLR, 0x0f},
+ /* OUTX_CLR registers are all 0x0 for defaults */
+ {0x15, 0x00}, {0x16, 0x00}, {0x17, 0x00}, {0x18, 0x00}, {0x19, 0x00},
+ {0x1a, 0x00}, {0x1b, 0x00}, {0x1c, 0x00}, {0x1d, 0x00}, {0x1e, 0x00},
+ {0x1f, 0x00}, {0x20, 0x00}, {0x21, 0x00}, {0x22, 0x00}, {0x23, 0x00},
+ {0x24, 0x00}, {0x25, 0x00}, {0x26, 0x00}, {0x27, 0x00}, {0x28, 0x00},
+ {0x29, 0x00}, {0x2a, 0x00}, {0x2b, 0x00}, {0x2c, 0x00}, {0x2d, 0x00},
+ {0x2e, 0x00}, {0x2f, 0x00}, {0x30, 0x00}, {0x31, 0x00}, {0x32, 0x00},
+ {0x33, 0x00}, {0x34, 0x00}, {0x35, 0x00}, {0x36, 0x00}, {0x37, 0x00},
+ {LP5036_RESET, 0x00}
+};
+
+static const struct regmap_config lp5012_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+
+ .max_register = LP5012_RESET,
+ .reg_defaults = lp5012_reg_defs,
+ .num_reg_defaults = ARRAY_SIZE(lp5012_reg_defs),
+ .cache_type = REGCACHE_FLAT,
+};
+
+static const struct regmap_config lp5024_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+
+ .max_register = LP5024_RESET,
+ .reg_defaults = lp5024_reg_defs,
+ .num_reg_defaults = ARRAY_SIZE(lp5024_reg_defs),
+ .cache_type = REGCACHE_FLAT,
+};
+
+static const struct regmap_config lp5036_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+
+ .max_register = LP5036_RESET,
+ .reg_defaults = lp5036_reg_defs,
+ .num_reg_defaults = ARRAY_SIZE(lp5036_reg_defs),
+ .cache_type = REGCACHE_FLAT,
+};
+
+enum lp50xx_model {
+ LP5009,
+ LP5012,
+ LP5018,
+ LP5024,
+ LP5030,
+ LP5036,
+};
+
+/**
+ * struct lp50xx_chip_info -
+ * @lp50xx_regmap_config: regmap register configuration
+ * @model_id: LED device model
+ * @max_modules: total number of supported LED modules
+ * @num_leds: number of LED outputs available on the device
+ * @led_brightness0_reg: first brightness register of the device
+ * @mix_out0_reg: first color mix register of the device
+ * @bank_brt_reg: bank brightness register
+ * @bank_mix_reg: color mix register
+ * @reset_reg: device reset register
+ */
+struct lp50xx_chip_info {
+ const struct regmap_config *lp50xx_regmap_config;
+ int model_id;
+ u8 max_modules;
+ u8 num_leds;
+ u8 led_brightness0_reg;
+ u8 mix_out0_reg;
+ u8 bank_brt_reg;
+ u8 bank_mix_reg;
+ u8 reset_reg;
+};
+
+static const struct lp50xx_chip_info lp50xx_chip_info_tbl[] = {
+ [LP5009] = {
+ .model_id = LP5009,
+ .max_modules = LP5009_MAX_LED_MODULES,
+ .num_leds = LP5009_MAX_LED_MODULES * LP50XX_LEDS_PER_MODULE,
+ .led_brightness0_reg = LP5012_LED0_BRT,
+ .mix_out0_reg = LP5012_OUT0_CLR,
+ .bank_brt_reg = LP5012_BNK_BRT,
+ .bank_mix_reg = LP5012_BNKA_CLR,
+ .reset_reg = LP5012_RESET,
+ .lp50xx_regmap_config = &lp5012_regmap_config,
+ },
+ [LP5012] = {
+ .model_id = LP5012,
+ .max_modules = LP5012_MAX_LED_MODULES,
+ .num_leds = LP5012_MAX_LED_MODULES * LP50XX_LEDS_PER_MODULE,
+ .led_brightness0_reg = LP5012_LED0_BRT,
+ .mix_out0_reg = LP5012_OUT0_CLR,
+ .bank_brt_reg = LP5012_BNK_BRT,
+ .bank_mix_reg = LP5012_BNKA_CLR,
+ .reset_reg = LP5012_RESET,
+ .lp50xx_regmap_config = &lp5012_regmap_config,
+ },
+ [LP5018] = {
+ .model_id = LP5018,
+ .max_modules = LP5018_MAX_LED_MODULES,
+ .num_leds = LP5018_MAX_LED_MODULES * LP50XX_LEDS_PER_MODULE,
+ .led_brightness0_reg = LP5024_LED0_BRT,
+ .mix_out0_reg = LP5024_OUT0_CLR,
+ .bank_brt_reg = LP5024_BNK_BRT,
+ .bank_mix_reg = LP5024_BNKA_CLR,
+ .reset_reg = LP5024_RESET,
+ .lp50xx_regmap_config = &lp5024_regmap_config,
+ },
+ [LP5024] = {
+ .model_id = LP5024,
+ .max_modules = LP5024_MAX_LED_MODULES,
+ .num_leds = LP5024_MAX_LED_MODULES * LP50XX_LEDS_PER_MODULE,
+ .led_brightness0_reg = LP5024_LED0_BRT,
+ .mix_out0_reg = LP5024_OUT0_CLR,
+ .bank_brt_reg = LP5024_BNK_BRT,
+ .bank_mix_reg = LP5024_BNKA_CLR,
+ .reset_reg = LP5024_RESET,
+ .lp50xx_regmap_config = &lp5024_regmap_config,
+ },
+ [LP5030] = {
+ .model_id = LP5030,
+ .max_modules = LP5030_MAX_LED_MODULES,
+ .num_leds = LP5030_MAX_LED_MODULES * LP50XX_LEDS_PER_MODULE,
+ .led_brightness0_reg = LP5036_LED0_BRT,
+ .mix_out0_reg = LP5036_OUT0_CLR,
+ .bank_brt_reg = LP5036_BNK_BRT,
+ .bank_mix_reg = LP5036_BNKA_CLR,
+ .reset_reg = LP5036_RESET,
+ .lp50xx_regmap_config = &lp5036_regmap_config,
+ },
+ [LP5036] = {
+ .model_id = LP5036,
+ .max_modules = LP5036_MAX_LED_MODULES,
+ .num_leds = LP5036_MAX_LED_MODULES * LP50XX_LEDS_PER_MODULE,
+ .led_brightness0_reg = LP5036_LED0_BRT,
+ .mix_out0_reg = LP5036_OUT0_CLR,
+ .bank_brt_reg = LP5036_BNK_BRT,
+ .bank_mix_reg = LP5036_BNKA_CLR,
+ .reset_reg = LP5036_RESET,
+ .lp50xx_regmap_config = &lp5036_regmap_config,
+ },
+};
+
+struct lp50xx_led {
+ struct led_classdev_mc mc_cdev;
+ struct lp50xx *priv;
+ unsigned long bank_modules;
+ int led_intensity[LP50XX_LEDS_PER_MODULE];
+ u8 ctrl_bank_enabled;
+ int led_number;
+};
+
+/**
+ * struct lp50xx -
+ * @enable_gpio: hardware enable gpio
+ * @regulator: LED supply regulator pointer
+ * @client: pointer to the I2C client
+ * @regmap: device register map
+ * @dev: pointer to the devices device struct
+ * @lock: lock for reading/writing the device
+ * @chip_info: chip specific information (ie num_leds)
+ * @num_of_banked_leds: holds the number of banked LEDs
+ * @leds: array of LED strings
+ */
+struct lp50xx {
+ struct gpio_desc *enable_gpio;
+ struct regulator *regulator;
+ struct i2c_client *client;
+ struct regmap *regmap;
+ struct device *dev;
+ struct mutex lock;
+ const struct lp50xx_chip_info *chip_info;
+ int num_of_banked_leds;
+
+ /* This needs to be at the end of the struct */
+ struct lp50xx_led leds[];
+};
+
+static struct lp50xx_led *mcled_cdev_to_led(struct led_classdev_mc *mc_cdev)
+{
+ return container_of(mc_cdev, struct lp50xx_led, mc_cdev);
+}
+
+static int lp50xx_brightness_set(struct led_classdev *cdev,
+ enum led_brightness brightness)
+{
+ struct led_classdev_mc *mc_dev = lcdev_to_mccdev(cdev);
+ struct lp50xx_led *led = mcled_cdev_to_led(mc_dev);
+ const struct lp50xx_chip_info *led_chip = led->priv->chip_info;
+ u8 led_offset, reg_val;
+ int ret = 0;
+ int i;
+
+ mutex_lock(&led->priv->lock);
+ if (led->ctrl_bank_enabled)
+ reg_val = led_chip->bank_brt_reg;
+ else
+ reg_val = led_chip->led_brightness0_reg +
+ led->led_number;
+
+ ret = regmap_write(led->priv->regmap, reg_val, brightness);
+ if (ret) {
+ dev_err(&led->priv->client->dev,
+ "Cannot write brightness value %d\n", ret);
+ goto out;
+ }
+
+ for (i = 0; i < led->mc_cdev.num_colors; i++) {
+ if (led->ctrl_bank_enabled) {
+ reg_val = led_chip->bank_mix_reg + i;
+ } else {
+ led_offset = (led->led_number * 3) + i;
+ reg_val = led_chip->mix_out0_reg + led_offset;
+ }
+
+ ret = regmap_write(led->priv->regmap, reg_val,
+ mc_dev->subled_info[i].intensity);
+ if (ret) {
+ dev_err(&led->priv->client->dev,
+ "Cannot write intensity value %d\n", ret);
+ goto out;
+ }
+ }
+out:
+ mutex_unlock(&led->priv->lock);
+ return ret;
+}
+
+static int lp50xx_set_banks(struct lp50xx *priv, u32 led_banks[])
+{
+ u8 led_config_lo, led_config_hi;
+ u32 bank_enable_mask = 0;
+ int ret;
+ int i;
+
+ for (i = 0; i < priv->chip_info->max_modules; i++) {
+ if (led_banks[i])
+ bank_enable_mask |= (1 << led_banks[i]);
+ }
+
+ led_config_lo = (u8)(bank_enable_mask & 0xff);
+ led_config_hi = (u8)(bank_enable_mask >> 8) & 0xff;
+
+ ret = regmap_write(priv->regmap, LP50XX_LED_CFG0, led_config_lo);
+ if (ret)
+ return ret;
+
+ if (priv->chip_info->model_id >= LP5030)
+ ret = regmap_write(priv->regmap, LP5036_LED_CFG1, led_config_hi);
+
+ return ret;
+}
+
+static int lp50xx_reset(struct lp50xx *priv)
+{
+ return regmap_write(priv->regmap, priv->chip_info->reset_reg, LP50XX_SW_RESET);
+}
+
+static int lp50xx_enable_disable(struct lp50xx *priv, int enable_disable)
+{
+ int ret;
+
+ if (priv->enable_gpio) {
+ ret = gpiod_direction_output(priv->enable_gpio, enable_disable);
+ if (ret)
+ return ret;
+ }
+
+ if (enable_disable)
+ return regmap_write(priv->regmap, LP50XX_DEV_CFG0, LP50XX_CHIP_EN);
+ else
+ return regmap_write(priv->regmap, LP50XX_DEV_CFG0, 0);
+
+}
+
+static int lp50xx_probe_leds(struct fwnode_handle *child, struct lp50xx *priv,
+ struct lp50xx_led *led, int num_leds)
+{
+ u32 led_banks[LP5036_MAX_LED_MODULES] = {0};
+ int led_number;
+ int ret;
+
+ if (num_leds > 1) {
+ if (num_leds > priv->chip_info->max_modules) {
+ dev_err(&priv->client->dev, "reg property is invalid\n");
+ return -EINVAL;
+ }
+
+ priv->num_of_banked_leds = num_leds;
+
+ ret = fwnode_property_read_u32_array(child, "reg", led_banks, num_leds);
+ if (ret) {
+ dev_err(&priv->client->dev, "reg property is missing\n");
+ return ret;
+ }
+
+ ret = lp50xx_set_banks(priv, led_banks);
+ if (ret) {
+ dev_err(&priv->client->dev, "Cannot setup banked LEDs\n");
+ return ret;
+ }
+
+ led->ctrl_bank_enabled = 1;
+ } else {
+ ret = fwnode_property_read_u32(child, "reg", &led_number);
+ if (ret) {
+ dev_err(&priv->client->dev, "led reg property missing\n");
+ return ret;
+ }
+
+ if (led_number > priv->chip_info->num_leds) {
+ dev_err(&priv->client->dev, "led-sources property is invalid\n");
+ return -EINVAL;
+ }
+
+ led->led_number = led_number;
+ }
+
+ return 0;
+}
+
+static int lp50xx_probe_dt(struct lp50xx *priv)
+{
+ struct fwnode_handle *child = NULL;
+ struct fwnode_handle *led_node = NULL;
+ struct led_init_data init_data = {};
+ struct led_classdev *led_cdev;
+ struct mc_subled *mc_led_info;
+ struct lp50xx_led *led;
+ int ret = -EINVAL;
+ int num_colors;
+ u32 color_id;
+ int i = 0;
+
+ priv->enable_gpio = devm_gpiod_get_optional(priv->dev, "enable", GPIOD_OUT_LOW);
+ if (IS_ERR(priv->enable_gpio)) {
+ ret = PTR_ERR(priv->enable_gpio);
+ dev_err(&priv->client->dev, "Failed to get enable gpio: %d\n",
+ ret);
+ return ret;
+ }
+
+ priv->regulator = devm_regulator_get(priv->dev, "vled");
+ if (IS_ERR(priv->regulator))
+ priv->regulator = NULL;
+
+ device_for_each_child_node(priv->dev, child) {
+ led = &priv->leds[i];
+ ret = fwnode_property_count_u32(child, "reg");
+ if (ret < 0) {
+ dev_err(&priv->client->dev, "reg property is invalid\n");
+ goto child_out;
+ }
+
+ ret = lp50xx_probe_leds(child, priv, led, ret);
+ if (ret)
+ goto child_out;
+
+ init_data.fwnode = child;
+ num_colors = 0;
+
+ /*
+ * There are only 3 LEDs per module otherwise they should be
+ * banked which also is presented as 3 LEDs.
+ */
+ mc_led_info = devm_kcalloc(priv->dev, LP50XX_LEDS_PER_MODULE,
+ sizeof(*mc_led_info), GFP_KERNEL);
+ if (!mc_led_info)
+ return -ENOMEM;
+
+ fwnode_for_each_child_node(child, led_node) {
+ ret = fwnode_property_read_u32(led_node, "color",
+ &color_id);
+ if (ret) {
+ dev_err(priv->dev, "Cannot read color\n");
+ goto child_out;
+ }
+
+ mc_led_info[num_colors].color_index = color_id;
+ num_colors++;
+ }
+
+ led->priv = priv;
+ led->mc_cdev.num_colors = num_colors;
+ led->mc_cdev.subled_info = mc_led_info;
+ led_cdev = &led->mc_cdev.led_cdev;
+ led_cdev->brightness_set_blocking = lp50xx_brightness_set;
+
+ ret = devm_led_classdev_multicolor_register_ext(&priv->client->dev,
+ &led->mc_cdev,
+ &init_data);
+ if (ret) {
+ dev_err(&priv->client->dev, "led register err: %d\n",
+ ret);
+ goto child_out;
+ }
+ i++;
+ fwnode_handle_put(child);
+ }
+
+ return 0;
+
+child_out:
+ fwnode_handle_put(child);
+ return ret;
+}
+
+static int lp50xx_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct lp50xx *led;
+ int count;
+ int ret;
+
+ count = device_get_child_node_count(&client->dev);
+ if (!count) {
+ dev_err(&client->dev, "LEDs are not defined in device tree!");
+ return -ENODEV;
+ }
+
+ led = devm_kzalloc(&client->dev, struct_size(led, leds, count),
+ GFP_KERNEL);
+ if (!led)
+ return -ENOMEM;
+
+ mutex_init(&led->lock);
+ led->client = client;
+ led->dev = &client->dev;
+ led->chip_info = &lp50xx_chip_info_tbl[id->driver_data];
+ i2c_set_clientdata(client, led);
+ led->regmap = devm_regmap_init_i2c(client,
+ led->chip_info->lp50xx_regmap_config);
+ if (IS_ERR(led->regmap)) {
+ ret = PTR_ERR(led->regmap);
+ dev_err(&client->dev, "Failed to allocate register map: %d\n",
+ ret);
+ return ret;
+ }
+
+ ret = lp50xx_reset(led);
+ if (ret)
+ return ret;
+
+ ret = lp50xx_enable_disable(led, 1);
+ if (ret)
+ return ret;
+
+ return lp50xx_probe_dt(led);
+}
+
+static int lp50xx_remove(struct i2c_client *client)
+{
+ struct lp50xx *led = i2c_get_clientdata(client);
+ int ret;
+
+ ret = lp50xx_enable_disable(led, 0);
+ if (ret) {
+ dev_err(&led->client->dev, "Failed to disable chip\n");
+ return ret;
+ }
+
+ if (led->regulator) {
+ ret = regulator_disable(led->regulator);
+ if (ret)
+ dev_err(&led->client->dev,
+ "Failed to disable regulator\n");
+ }
+
+ mutex_destroy(&led->lock);
+
+ return 0;
+}
+
+static const struct i2c_device_id lp50xx_id[] = {
+ { "lp5009", LP5009 },
+ { "lp5012", LP5012 },
+ { "lp5018", LP5018 },
+ { "lp5024", LP5024 },
+ { "lp5030", LP5030 },
+ { "lp5036", LP5036 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, lp50xx_id);
+
+static const struct of_device_id of_lp50xx_leds_match[] = {
+ { .compatible = "ti,lp5009", .data = (void *)LP5009 },
+ { .compatible = "ti,lp5012", .data = (void *)LP5012 },
+ { .compatible = "ti,lp5018", .data = (void *)LP5018 },
+ { .compatible = "ti,lp5024", .data = (void *)LP5024 },
+ { .compatible = "ti,lp5030", .data = (void *)LP5030 },
+ { .compatible = "ti,lp5036", .data = (void *)LP5036 },
+ {},
+};
+MODULE_DEVICE_TABLE(of, of_lp50xx_leds_match);
+
+static struct i2c_driver lp50xx_driver = {
+ .driver = {
+ .name = "lp50xx",
+ .of_match_table = of_lp50xx_leds_match,
+ },
+ .probe = lp50xx_probe,
+ .remove = lp50xx_remove,
+ .id_table = lp50xx_id,
+};
+module_i2c_driver(lp50xx_driver);
+
+MODULE_DESCRIPTION("Texas Instruments LP50XX LED driver");
+MODULE_AUTHOR("Dan Murphy <dmurphy@ti.com>");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/leds/leds-lp5521.c b/drivers/leds/leds-lp5521.c
index ef8c3bfa8f3c4a8581c94fd7bd09623f69a7eeb3..a9e7507c998cd797b7717e3a60061eef270cbfbe 100644
--- a/drivers/leds/leds-lp5521.c
+++ b/drivers/leds/leds-lp5521.c
@@ -523,7 +523,7 @@ static int lp5521_probe(struct i2c_client *client,
struct lp55xx_chip *chip;
struct lp55xx_led *led;
struct lp55xx_platform_data *pdata = dev_get_platdata(&client->dev);
- struct device_node *np = client->dev.of_node;
+ struct device_node *np = dev_of_node(&client->dev);
chip = devm_kzalloc(&client->dev, sizeof(*chip), GFP_KERNEL);
if (!chip)
diff --git a/drivers/leds/leds-lp5523.c b/drivers/leds/leds-lp5523.c
index f55d97258d5e7824346829819f01f5dd31871ceb..fc433e63b1dc0319966fb52493f9c6d99d218368 100644
--- a/drivers/leds/leds-lp5523.c
+++ b/drivers/leds/leds-lp5523.c
@@ -891,7 +891,7 @@ static int lp5523_probe(struct i2c_client *client,
struct lp55xx_chip *chip;
struct lp55xx_led *led;
struct lp55xx_platform_data *pdata = dev_get_platdata(&client->dev);
- struct device_node *np = client->dev.of_node;
+ struct device_node *np = dev_of_node(&client->dev);
chip = devm_kzalloc(&client->dev, sizeof(*chip), GFP_KERNEL);
if (!chip)
diff --git a/drivers/leds/leds-lp5562.c b/drivers/leds/leds-lp5562.c
index 7ecdd199d7efc8d979fd69845ab6478344c570af..31c14016d2896e7ea3597ff75818447c44e6724f 100644
--- a/drivers/leds/leds-lp5562.c
+++ b/drivers/leds/leds-lp5562.c
@@ -518,7 +518,7 @@ static int lp5562_probe(struct i2c_client *client,
struct lp55xx_chip *chip;
struct lp55xx_led *led;
struct lp55xx_platform_data *pdata = dev_get_platdata(&client->dev);
- struct device_node *np = client->dev.of_node;
+ struct device_node *np = dev_of_node(&client->dev);
chip = devm_kzalloc(&client->dev, sizeof(*chip), GFP_KERNEL);
if (!chip)
diff --git a/drivers/leds/leds-lp55xx-common.c b/drivers/leds/leds-lp55xx-common.c
index 56210f4ad919a07aab9a09213dea25216a31c824..81de1346bf5d670caab9962d1bab23745677ca54 100644
--- a/drivers/leds/leds-lp55xx-common.c
+++ b/drivers/leds/leds-lp55xx-common.c
@@ -611,11 +611,13 @@ static int lp55xx_parse_multi_led(struct device_node *np,
struct device_node *child;
int num_colors = 0, ret;
- for_each_child_of_node(np, child) {
+ for_each_available_child_of_node(np, child) {
ret = lp55xx_parse_multi_led_child(child, cfg, child_number,
num_colors);
- if (ret)
+ if (ret) {
+ of_node_put(child);
return ret;
+ }
num_colors++;
}
@@ -665,7 +667,7 @@ struct lp55xx_platform_data *lp55xx_of_populate_pdata(struct device *dev,
if (!pdata)
return ERR_PTR(-ENOMEM);
- num_channels = of_get_child_count(np);
+ num_channels = of_get_available_child_count(np);
if (num_channels == 0) {
dev_err(dev, "no LED channels\n");
return ERR_PTR(-EINVAL);
@@ -679,10 +681,12 @@ struct lp55xx_platform_data *lp55xx_of_populate_pdata(struct device *dev,
pdata->num_channels = num_channels;
cfg->max_channel = chip->cfg->max_channel;
- for_each_child_of_node(np, child) {
+ for_each_available_child_of_node(np, child) {
ret = lp55xx_parse_logical_led(child, cfg, i);
- if (ret)
+ if (ret) {
+ of_node_put(child);
return ERR_PTR(-EINVAL);
+ }
i++;
}
diff --git a/drivers/leds/leds-lp8501.c b/drivers/leds/leds-lp8501.c
index ac2c31db4a65cdc845782f004e69978980189b97..2d2fda2ab10461e56ed77c254e1dc62d71cb03c1 100644
--- a/drivers/leds/leds-lp8501.c
+++ b/drivers/leds/leds-lp8501.c
@@ -306,7 +306,7 @@ static int lp8501_probe(struct i2c_client *client,
struct lp55xx_chip *chip;
struct lp55xx_led *led;
struct lp55xx_platform_data *pdata = dev_get_platdata(&client->dev);
- struct device_node *np = client->dev.of_node;
+ struct device_node *np = dev_of_node(&client->dev);
chip = devm_kzalloc(&client->dev, sizeof(*chip), GFP_KERNEL);
if (!chip)
diff --git a/drivers/leds/leds-lp8860.c b/drivers/leds/leds-lp8860.c
index ac2f5d6272dc0e7389bed88b76a1d2e943590576..f0533a337bc15c2676a29b0e8386f96473663e88 100644
--- a/drivers/leds/leds-lp8860.c
+++ b/drivers/leds/leds-lp8860.c
@@ -380,7 +380,7 @@ static int lp8860_probe(struct i2c_client *client,
{
int ret;
struct lp8860_led *led;
- struct device_node *np = client->dev.of_node;
+ struct device_node *np = dev_of_node(&client->dev);
struct device_node *child_node;
struct led_init_data init_data = {};
@@ -392,10 +392,6 @@ static int lp8860_probe(struct i2c_client *client,
if (!child_node)
return -EINVAL;
- led->led_dev.default_trigger = of_get_property(child_node,
- "linux,default-trigger",
- NULL);
-
led->enable_gpio = devm_gpiod_get_optional(&client->dev,
"enable", GPIOD_OUT_LOW);
if (IS_ERR(led->enable_gpio)) {
diff --git a/drivers/leds/leds-lt3593.c b/drivers/leds/leds-lt3593.c
index 9079850e6ea44990b07cfd23cbbd55a0404d91a1..68e06434ac087a585ce2b9e2f9ecc6059b308bb8 100644
--- a/drivers/leds/leds-lt3593.c
+++ b/drivers/leds/leds-lt3593.c
@@ -68,7 +68,7 @@ static int lt3593_led_probe(struct platform_device *pdev)
struct led_init_data init_data = {};
const char *tmp;
- if (!dev->of_node)
+ if (!dev_of_node(dev))
return -ENODEV;
led_data = devm_kzalloc(dev, sizeof(*led_data), GFP_KERNEL);
@@ -86,9 +86,6 @@ static int lt3593_led_probe(struct platform_device *pdev)
child = device_get_next_child_node(dev, NULL);
- fwnode_property_read_string(child, "linux,default-trigger",
- &led_data->cdev.default_trigger);
-
if (!fwnode_property_read_string(child, "default-state", &tmp)) {
if (!strcmp(tmp, "on"))
state = LEDS_GPIO_DEFSTATE_ON;
@@ -107,7 +104,6 @@ static int lt3593_led_probe(struct platform_device *pdev)
return ret;
}
- led_data->cdev.dev->of_node = dev->of_node;
platform_set_drvdata(pdev, led_data);
return 0;
diff --git a/drivers/leds/leds-max77650.c b/drivers/leds/leds-max77650.c
index a0d4b725c917801c31ba0f1beee5a5a366c944af..1eeac56b00146d8a1bc1518b69520f2a151fe4bf 100644
--- a/drivers/leds/leds-max77650.c
+++ b/drivers/leds/leds-max77650.c
@@ -66,7 +66,6 @@ static int max77650_led_probe(struct platform_device *pdev)
struct max77650_led *leds, *led;
struct device *dev;
struct regmap *map;
- const char *label;
int rv, num_leds;
u32 reg;
@@ -86,6 +85,8 @@ static int max77650_led_probe(struct platform_device *pdev)
return -ENODEV;
device_for_each_child_node(dev, child) {
+ struct led_init_data init_data = {};
+
rv = fwnode_property_read_u32(child, "reg", ®);
if (rv || reg >= MAX77650_LED_NUM_LEDS) {
rv = -EINVAL;
@@ -99,22 +100,13 @@ static int max77650_led_probe(struct platform_device *pdev)
led->cdev.brightness_set_blocking = max77650_led_brightness_set;
led->cdev.max_brightness = MAX77650_LED_MAX_BRIGHTNESS;
- rv = fwnode_property_read_string(child, "label", &label);
- if (rv) {
- led->cdev.name = "max77650::";
- } else {
- led->cdev.name = devm_kasprintf(dev, GFP_KERNEL,
- "max77650:%s", label);
- if (!led->cdev.name) {
- rv = -ENOMEM;
- goto err_node_put;
- }
- }
-
- fwnode_property_read_string(child, "linux,default-trigger",
- &led->cdev.default_trigger);
+ init_data.fwnode = child;
+ init_data.devicename = "max77650";
+ /* for backwards compatibility if `label` is not present */
+ init_data.default_label = ":";
- rv = devm_led_classdev_register(dev, &led->cdev);
+ rv = devm_led_classdev_register_ext(dev, &led->cdev,
+ &init_data);
if (rv)
goto err_node_put;
diff --git a/drivers/leds/leds-max77693.c b/drivers/leds/leds-max77693.c
index fec56090c2ba3d8b38d232237a985c7cb509451b..5c1faeb55a314225847a4d381b8bf4accfe50d3a 100644
--- a/drivers/leds/leds-max77693.c
+++ b/drivers/leds/leds-max77693.c
@@ -599,7 +599,7 @@ static int max77693_led_parse_dt(struct max77693_led_device *led,
{
struct device *dev = &led->pdev->dev;
struct max77693_sub_led *sub_leds = led->sub_leds;
- struct device_node *node = dev->of_node, *child_node;
+ struct device_node *node = dev_of_node(dev), *child_node;
struct property *prop;
u32 led_sources[2];
int i, ret, fled_id;
diff --git a/drivers/leds/leds-mc13783.c b/drivers/leds/leds-mc13783.c
index 5cd810c545f3ed0d02ec2c842f10a18e37c19c1b..675502c15c2b40d07907d9e576c254ac8de58c50 100644
--- a/drivers/leds/leds-mc13783.c
+++ b/drivers/leds/leds-mc13783.c
@@ -121,7 +121,7 @@ static struct mc13xxx_leds_platform_data __init *mc13xxx_led_probe_dt(
if (!pdata)
return ERR_PTR(-ENOMEM);
- parent = of_get_child_by_name(dev->parent->of_node, "leds");
+ parent = of_get_child_by_name(dev_of_node(dev->parent), "leds");
if (!parent)
goto out_node_put;
@@ -131,7 +131,7 @@ static struct mc13xxx_leds_platform_data __init *mc13xxx_led_probe_dt(
if (ret)
goto out_node_put;
- pdata->num_leds = of_get_child_count(parent);
+ pdata->num_leds = of_get_available_child_count(parent);
pdata->led = devm_kcalloc(dev, pdata->num_leds, sizeof(*pdata->led),
GFP_KERNEL);
@@ -140,7 +140,7 @@ static struct mc13xxx_leds_platform_data __init *mc13xxx_led_probe_dt(
goto out_node_put;
}
- for_each_child_of_node(parent, child) {
+ for_each_available_child_of_node(parent, child) {
const char *str;
u32 tmp;
@@ -192,7 +192,7 @@ static int __init mc13xxx_led_probe(struct platform_device *pdev)
leds->master = mcdev;
platform_set_drvdata(pdev, leds);
- if (dev->parent->of_node) {
+ if (dev_of_node(dev->parent)) {
pdata = mc13xxx_led_probe_dt(pdev);
if (IS_ERR(pdata))
return PTR_ERR(pdata);
diff --git a/drivers/leds/leds-mt6323.c b/drivers/leds/leds-mt6323.c
index 2a13e3161bf417f0dc928bfe2f143ed5b6915786..f59e0e8bda8bb2c9541b3b2bd6d4ffa2f6e8d5df 100644
--- a/drivers/leds/leds-mt6323.c
+++ b/drivers/leds/leds-mt6323.c
@@ -248,15 +248,6 @@ static int mt6323_led_set_blink(struct led_classdev *cdev,
u8 duty_hw;
int ret;
- /*
- * Units are in ms, if over the hardware able
- * to support, fallback into software blink
- */
- period = *delay_on + *delay_off;
-
- if (period > MT6323_MAX_PERIOD)
- return -EINVAL;
-
/*
* LED subsystem requires a default user
* friendly blink pattern for the LED so using
@@ -268,6 +259,15 @@ static int mt6323_led_set_blink(struct led_classdev *cdev,
*delay_off = 500;
}
+ /*
+ * Units are in ms, if over the hardware able
+ * to support, fallback into software blink
+ */
+ period = *delay_on + *delay_off;
+
+ if (period > MT6323_MAX_PERIOD)
+ return -EINVAL;
+
/*
* Calculate duty_hw based on the percentage of period during
* which the led is ON.
@@ -342,11 +342,6 @@ static int mt6323_led_set_dt_default(struct led_classdev *cdev,
const char *state;
int ret = 0;
- led->cdev.name = of_get_property(np, "label", NULL) ? : np->name;
- led->cdev.default_trigger = of_get_property(np,
- "linux,default-trigger",
- NULL);
-
state = of_get_property(np, "default-state", NULL);
if (state) {
if (!strcmp(state, "keep")) {
@@ -369,9 +364,9 @@ static int mt6323_led_set_dt_default(struct led_classdev *cdev,
static int mt6323_led_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
- struct device_node *np = pdev->dev.of_node;
+ struct device_node *np = dev_of_node(dev);
struct device_node *child;
- struct mt6397_chip *hw = dev_get_drvdata(pdev->dev.parent);
+ struct mt6397_chip *hw = dev_get_drvdata(dev->parent);
struct mt6323_leds *leds;
struct mt6323_led *led;
int ret;
@@ -402,6 +397,8 @@ static int mt6323_led_probe(struct platform_device *pdev)
}
for_each_available_child_of_node(np, child) {
+ struct led_init_data init_data = {};
+
ret = of_property_read_u32(child, "reg", ®);
if (ret) {
dev_err(dev, "Failed to read led 'reg' property\n");
@@ -437,13 +434,14 @@ static int mt6323_led_probe(struct platform_device *pdev)
goto put_child_node;
}
- ret = devm_led_classdev_register(dev, &leds->led[reg]->cdev);
+ init_data.fwnode = of_fwnode_handle(child);
+
+ ret = devm_led_classdev_register_ext(dev, &leds->led[reg]->cdev,
+ &init_data);
if (ret) {
- dev_err(&pdev->dev, "Failed to register LED: %d\n",
- ret);
+ dev_err(dev, "Failed to register LED: %d\n", ret);
goto put_child_node;
}
- leds->led[reg]->cdev.dev->of_node = child;
}
return 0;
diff --git a/drivers/leds/leds-netxbig.c b/drivers/leds/leds-netxbig.c
index ceceeb6a0e966c5ad7b7ec4b55f250fb65d1f32d..e6fd47365b58871c0aa65ccdaaaf2076a7d7888c 100644
--- a/drivers/leds/leds-netxbig.c
+++ b/drivers/leds/leds-netxbig.c
@@ -419,7 +419,7 @@ static int netxbig_gpio_ext_get(struct device *dev,
static int netxbig_leds_get_of_pdata(struct device *dev,
struct netxbig_led_platform_data *pdata)
{
- struct device_node *np = dev->of_node;
+ struct device_node *np = dev_of_node(dev);
struct device_node *gpio_ext_np;
struct platform_device *gpio_ext_pdev;
struct device *gpio_ext_dev;
@@ -485,7 +485,7 @@ static int netxbig_leds_get_of_pdata(struct device *dev,
}
/* LEDs */
- num_leds = of_get_child_count(np);
+ num_leds = of_get_available_child_count(np);
if (!num_leds) {
dev_err(dev, "No LED subnodes found in DT\n");
return -ENODEV;
@@ -496,7 +496,7 @@ static int netxbig_leds_get_of_pdata(struct device *dev,
return -ENOMEM;
led = leds;
- for_each_child_of_node(np, child) {
+ for_each_available_child_of_node(np, child) {
const char *string;
int *mode_val;
int num_modes;
diff --git a/drivers/leds/leds-ns2.c b/drivers/leds/leds-ns2.c
index bd806e7c8017bc9844e654a060ba4c5b66436014..1677d66d8b0e349b79e5d8c4fbaaee855f62a3a1 100644
--- a/drivers/leds/leds-ns2.c
+++ b/drivers/leds/leds-ns2.c
@@ -24,25 +24,16 @@ enum ns2_led_modes {
NS_V2_LED_SATA,
};
+/*
+ * If the size of this structure or types of its members is changed,
+ * the filling of array modval in function ns2_led_register must be changed
+ * accordingly.
+ */
struct ns2_led_modval {
- enum ns2_led_modes mode;
- int cmd_level;
- int slow_level;
-};
-
-struct ns2_led {
- const char *name;
- const char *default_trigger;
- struct gpio_desc *cmd;
- struct gpio_desc *slow;
- int num_modes;
- struct ns2_led_modval *modval;
-};
-
-struct ns2_led_platform_data {
- int num_leds;
- struct ns2_led *leds;
-};
+ u32 mode;
+ u32 cmd_level;
+ u32 slow_level;
+} __packed;
/*
* The Network Space v2 dual-GPIO LED is wired to a CPLD. Three different LED
@@ -51,7 +42,7 @@ struct ns2_led_platform_data {
* for the command/slow GPIOs corresponds to a LED mode.
*/
-struct ns2_led_data {
+struct ns2_led {
struct led_classdev cdev;
struct gpio_desc *cmd;
struct gpio_desc *slow;
@@ -62,77 +53,67 @@ struct ns2_led_data {
struct ns2_led_modval *modval;
};
-static int ns2_led_get_mode(struct ns2_led_data *led_dat,
- enum ns2_led_modes *mode)
+static int ns2_led_get_mode(struct ns2_led *led, enum ns2_led_modes *mode)
{
int i;
- int ret = -EINVAL;
int cmd_level;
int slow_level;
- cmd_level = gpiod_get_value_cansleep(led_dat->cmd);
- slow_level = gpiod_get_value_cansleep(led_dat->slow);
+ cmd_level = gpiod_get_value_cansleep(led->cmd);
+ slow_level = gpiod_get_value_cansleep(led->slow);
- for (i = 0; i < led_dat->num_modes; i++) {
- if (cmd_level == led_dat->modval[i].cmd_level &&
- slow_level == led_dat->modval[i].slow_level) {
- *mode = led_dat->modval[i].mode;
- ret = 0;
- break;
+ for (i = 0; i < led->num_modes; i++) {
+ if (cmd_level == led->modval[i].cmd_level &&
+ slow_level == led->modval[i].slow_level) {
+ *mode = led->modval[i].mode;
+ return 0;
}
}
- return ret;
+ return -EINVAL;
}
-static void ns2_led_set_mode(struct ns2_led_data *led_dat,
- enum ns2_led_modes mode)
+static void ns2_led_set_mode(struct ns2_led *led, enum ns2_led_modes mode)
{
int i;
- bool found = false;
unsigned long flags;
- for (i = 0; i < led_dat->num_modes; i++)
- if (mode == led_dat->modval[i].mode) {
- found = true;
+ for (i = 0; i < led->num_modes; i++)
+ if (mode == led->modval[i].mode)
break;
- }
- if (!found)
+ if (i == led->num_modes)
return;
- write_lock_irqsave(&led_dat->rw_lock, flags);
+ write_lock_irqsave(&led->rw_lock, flags);
- if (!led_dat->can_sleep) {
- gpiod_set_value(led_dat->cmd,
- led_dat->modval[i].cmd_level);
- gpiod_set_value(led_dat->slow,
- led_dat->modval[i].slow_level);
+ if (!led->can_sleep) {
+ gpiod_set_value(led->cmd, led->modval[i].cmd_level);
+ gpiod_set_value(led->slow, led->modval[i].slow_level);
goto exit_unlock;
}
- gpiod_set_value_cansleep(led_dat->cmd, led_dat->modval[i].cmd_level);
- gpiod_set_value_cansleep(led_dat->slow, led_dat->modval[i].slow_level);
+ gpiod_set_value_cansleep(led->cmd, led->modval[i].cmd_level);
+ gpiod_set_value_cansleep(led->slow, led->modval[i].slow_level);
exit_unlock:
- write_unlock_irqrestore(&led_dat->rw_lock, flags);
+ write_unlock_irqrestore(&led->rw_lock, flags);
}
static void ns2_led_set(struct led_classdev *led_cdev,
enum led_brightness value)
{
- struct ns2_led_data *led_dat =
- container_of(led_cdev, struct ns2_led_data, cdev);
+ struct ns2_led *led = container_of(led_cdev, struct ns2_led, cdev);
enum ns2_led_modes mode;
if (value == LED_OFF)
mode = NS_V2_LED_OFF;
- else if (led_dat->sata)
+ else if (led->sata)
mode = NS_V2_LED_SATA;
else
mode = NS_V2_LED_ON;
- ns2_led_set_mode(led_dat, mode);
+ ns2_led_set_mode(led, mode);
}
static int ns2_led_set_blocking(struct led_classdev *led_cdev,
@@ -147,8 +128,7 @@ static ssize_t ns2_led_sata_store(struct device *dev,
const char *buff, size_t count)
{
struct led_classdev *led_cdev = dev_get_drvdata(dev);
- struct ns2_led_data *led_dat =
- container_of(led_cdev, struct ns2_led_data, cdev);
+ struct ns2_led *led = container_of(led_cdev, struct ns2_led, cdev);
int ret;
unsigned long enable;
@@ -158,18 +138,18 @@ static ssize_t ns2_led_sata_store(struct device *dev,
enable = !!enable;
- if (led_dat->sata == enable)
+ if (led->sata == enable)
goto exit;
- led_dat->sata = enable;
+ led->sata = enable;
if (!led_get_brightness(led_cdev))
goto exit;
if (enable)
- ns2_led_set_mode(led_dat, NS_V2_LED_SATA);
+ ns2_led_set_mode(led, NS_V2_LED_SATA);
else
- ns2_led_set_mode(led_dat, NS_V2_LED_ON);
+ ns2_led_set_mode(led, NS_V2_LED_ON);
exit:
return count;
@@ -179,10 +159,9 @@ static ssize_t ns2_led_sata_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct led_classdev *led_cdev = dev_get_drvdata(dev);
- struct ns2_led_data *led_dat =
- container_of(led_cdev, struct ns2_led_data, cdev);
+ struct ns2_led *led = container_of(led_cdev, struct ns2_led, cdev);
- return sprintf(buf, "%d\n", led_dat->sata);
+ return sprintf(buf, "%d\n", led->sata);
}
static DEVICE_ATTR(sata, 0644, ns2_led_sata_show, ns2_led_sata_store);
@@ -193,147 +172,94 @@ static struct attribute *ns2_led_attrs[] = {
};
ATTRIBUTE_GROUPS(ns2_led);
-static int
-create_ns2_led(struct platform_device *pdev, struct ns2_led_data *led_dat,
- const struct ns2_led *template)
+static int ns2_led_register(struct device *dev, struct fwnode_handle *node,
+ struct ns2_led *led)
{
- int ret;
+ struct led_init_data init_data = {};
+ struct ns2_led_modval *modval;
enum ns2_led_modes mode;
+ int nmodes, ret;
+
+ led->cmd = devm_fwnode_gpiod_get_index(dev, node, "cmd", 0, GPIOD_ASIS,
+ fwnode_get_name(node));
+ if (IS_ERR(led->cmd))
+ return PTR_ERR(led->cmd);
+
+ led->slow = devm_fwnode_gpiod_get_index(dev, node, "slow", 0,
+ GPIOD_ASIS,
+ fwnode_get_name(node));
+ if (IS_ERR(led->slow))
+ return PTR_ERR(led->slow);
+
+ ret = fwnode_property_count_u32(node, "modes-map");
+ if (ret < 0 || ret % 3) {
+ dev_err(dev, "Missing or malformed modes-map for %pfw\n", node);
+ return -EINVAL;
+ }
+
+ nmodes = ret / 3;
+ modval = devm_kcalloc(dev, nmodes, sizeof(*modval), GFP_KERNEL);
+ if (!modval)
+ return -ENOMEM;
+
+ fwnode_property_read_u32_array(node, "modes-map", (void *)modval,
+ nmodes * 3);
+
+ rwlock_init(&led->rw_lock);
- rwlock_init(&led_dat->rw_lock);
-
- led_dat->cdev.name = template->name;
- led_dat->cdev.default_trigger = template->default_trigger;
- led_dat->cdev.blink_set = NULL;
- led_dat->cdev.flags |= LED_CORE_SUSPENDRESUME;
- led_dat->cdev.groups = ns2_led_groups;
- led_dat->cmd = template->cmd;
- led_dat->slow = template->slow;
- led_dat->can_sleep = gpiod_cansleep(led_dat->cmd) |
- gpiod_cansleep(led_dat->slow);
- if (led_dat->can_sleep)
- led_dat->cdev.brightness_set_blocking = ns2_led_set_blocking;
+ led->cdev.blink_set = NULL;
+ led->cdev.flags |= LED_CORE_SUSPENDRESUME;
+ led->cdev.groups = ns2_led_groups;
+ led->can_sleep = gpiod_cansleep(led->cmd) || gpiod_cansleep(led->slow);
+ if (led->can_sleep)
+ led->cdev.brightness_set_blocking = ns2_led_set_blocking;
else
- led_dat->cdev.brightness_set = ns2_led_set;
- led_dat->modval = template->modval;
- led_dat->num_modes = template->num_modes;
+ led->cdev.brightness_set = ns2_led_set;
+ led->num_modes = nmodes;
+ led->modval = modval;
- ret = ns2_led_get_mode(led_dat, &mode);
+ ret = ns2_led_get_mode(led, &mode);
if (ret < 0)
return ret;
/* Set LED initial state. */
- led_dat->sata = (mode == NS_V2_LED_SATA) ? 1 : 0;
- led_dat->cdev.brightness =
- (mode == NS_V2_LED_OFF) ? LED_OFF : LED_FULL;
+ led->sata = (mode == NS_V2_LED_SATA) ? 1 : 0;
+ led->cdev.brightness = (mode == NS_V2_LED_OFF) ? LED_OFF : LED_FULL;
- ret = led_classdev_register(&pdev->dev, &led_dat->cdev);
- if (ret < 0)
- return ret;
+ init_data.fwnode = node;
- return 0;
-}
+ ret = devm_led_classdev_register_ext(dev, &led->cdev, &init_data);
+ if (ret)
+ dev_err(dev, "Failed to register LED for node %pfw\n", node);
-static void delete_ns2_led(struct ns2_led_data *led_dat)
-{
- led_classdev_unregister(&led_dat->cdev);
+ return ret;
}
-#ifdef CONFIG_OF_GPIO
-/*
- * Translate OpenFirmware node properties into platform_data.
- */
-static int
-ns2_leds_get_of_pdata(struct device *dev, struct ns2_led_platform_data *pdata)
+static int ns2_led_probe(struct platform_device *pdev)
{
- struct device_node *np = dev->of_node;
- struct device_node *child;
- struct ns2_led *led, *leds;
- int ret, num_leds = 0;
+ struct device *dev = &pdev->dev;
+ struct fwnode_handle *child;
+ struct ns2_led *leds;
+ int count;
+ int ret;
- num_leds = of_get_child_count(np);
- if (!num_leds)
+ count = device_get_child_node_count(dev);
+ if (!count)
return -ENODEV;
- leds = devm_kcalloc(dev, num_leds, sizeof(struct ns2_led),
- GFP_KERNEL);
+ leds = devm_kzalloc(dev, array_size(sizeof(*leds), count), GFP_KERNEL);
if (!leds)
return -ENOMEM;
- led = leds;
- for_each_child_of_node(np, child) {
- const char *string;
- int i, num_modes;
- struct ns2_led_modval *modval;
- struct gpio_desc *gd;
-
- ret = of_property_read_string(child, "label", &string);
- led->name = (ret == 0) ? string : child->name;
-
- gd = gpiod_get_from_of_node(child, "cmd-gpio", 0,
- GPIOD_ASIS, led->name);
- if (IS_ERR(gd)) {
- ret = PTR_ERR(gd);
- goto err_node_put;
- }
- led->cmd = gd;
- gd = gpiod_get_from_of_node(child, "slow-gpio", 0,
- GPIOD_ASIS, led->name);
- if (IS_ERR(gd)) {
- ret = PTR_ERR(gd);
- goto err_node_put;
- }
- led->slow = gd;
-
- ret = of_property_read_string(child, "linux,default-trigger",
- &string);
- if (ret == 0)
- led->default_trigger = string;
-
- ret = of_property_count_u32_elems(child, "modes-map");
- if (ret < 0 || ret % 3) {
- dev_err(dev,
- "Missing or malformed modes-map property\n");
- ret = -EINVAL;
- goto err_node_put;
- }
-
- num_modes = ret / 3;
- modval = devm_kcalloc(dev,
- num_modes,
- sizeof(struct ns2_led_modval),
- GFP_KERNEL);
- if (!modval) {
- ret = -ENOMEM;
- goto err_node_put;
- }
-
- for (i = 0; i < num_modes; i++) {
- of_property_read_u32_index(child,
- "modes-map", 3 * i,
- (u32 *) &modval[i].mode);
- of_property_read_u32_index(child,
- "modes-map", 3 * i + 1,
- (u32 *) &modval[i].cmd_level);
- of_property_read_u32_index(child,
- "modes-map", 3 * i + 2,
- (u32 *) &modval[i].slow_level);
+ device_for_each_child_node(dev, child) {
+ ret = ns2_led_register(dev, child, leds++);
+ if (ret) {
+ fwnode_handle_put(child);
+ return ret;
}
-
- led->num_modes = num_modes;
- led->modval = modval;
-
- led++;
}
- pdata->leds = leds;
- pdata->num_leds = num_leds;
-
return 0;
-
-err_node_put:
- of_node_put(child);
- return ret;
}
static const struct of_device_id of_ns2_leds_match[] = {
@@ -341,76 +267,12 @@ static const struct of_device_id of_ns2_leds_match[] = {
{},
};
MODULE_DEVICE_TABLE(of, of_ns2_leds_match);
-#endif /* CONFIG_OF_GPIO */
-
-struct ns2_led_priv {
- int num_leds;
- struct ns2_led_data leds_data[];
-};
-
-static int ns2_led_probe(struct platform_device *pdev)
-{
- struct ns2_led_platform_data *pdata = dev_get_platdata(&pdev->dev);
- struct ns2_led_priv *priv;
- int i;
- int ret;
-
-#ifdef CONFIG_OF_GPIO
- if (!pdata) {
- pdata = devm_kzalloc(&pdev->dev,
- sizeof(struct ns2_led_platform_data),
- GFP_KERNEL);
- if (!pdata)
- return -ENOMEM;
-
- ret = ns2_leds_get_of_pdata(&pdev->dev, pdata);
- if (ret)
- return ret;
- }
-#else
- if (!pdata)
- return -EINVAL;
-#endif /* CONFIG_OF_GPIO */
-
- priv = devm_kzalloc(&pdev->dev, struct_size(priv, leds_data, pdata->num_leds), GFP_KERNEL);
- if (!priv)
- return -ENOMEM;
- priv->num_leds = pdata->num_leds;
-
- for (i = 0; i < priv->num_leds; i++) {
- ret = create_ns2_led(pdev, &priv->leds_data[i],
- &pdata->leds[i]);
- if (ret < 0) {
- for (i = i - 1; i >= 0; i--)
- delete_ns2_led(&priv->leds_data[i]);
- return ret;
- }
- }
-
- platform_set_drvdata(pdev, priv);
-
- return 0;
-}
-
-static int ns2_led_remove(struct platform_device *pdev)
-{
- int i;
- struct ns2_led_priv *priv;
-
- priv = platform_get_drvdata(pdev);
-
- for (i = 0; i < priv->num_leds; i++)
- delete_ns2_led(&priv->leds_data[i]);
-
- return 0;
-}
static struct platform_driver ns2_led_driver = {
.probe = ns2_led_probe,
- .remove = ns2_led_remove,
.driver = {
.name = "leds-ns2",
- .of_match_table = of_match_ptr(of_ns2_leds_match),
+ .of_match_table = of_ns2_leds_match,
},
};
diff --git a/drivers/leds/leds-pca9532.c b/drivers/leds/leds-pca9532.c
index 7d515d5e57bd0a4b76c738dd71e803bcb4f94ea6..27d027165472502658f52e0ea890449a9180d9e1 100644
--- a/drivers/leds/leds-pca9532.c
+++ b/drivers/leds/leds-pca9532.c
@@ -27,6 +27,8 @@
#define PCA9532_REG_PWM(m, i) (PCA9532_REG_OFFSET(m) + 0x2 + (i) * 2)
#define LED_REG(m, led) (PCA9532_REG_OFFSET(m) + 0x5 + (led >> 2))
#define LED_NUM(led) (led & 0x3)
+#define LED_SHIFT(led) (LED_NUM(led) * 2)
+#define LED_MASK(led) (0x3 << LED_SHIFT(led))
#define ldev_to_led(c) container_of(c, struct pca9532_led, ldev)
@@ -162,9 +164,9 @@ static void pca9532_setled(struct pca9532_led *led)
mutex_lock(&data->update_lock);
reg = i2c_smbus_read_byte_data(client, LED_REG(maxleds, led->id));
/* zero led bits */
- reg = reg & ~(0x3<<LED_NUM(led->id)*2);
+ reg = reg & ~LED_MASK(led->id);
/* set the new value */
- reg = reg | (led->state << LED_NUM(led->id)*2);
+ reg = reg | (led->state << LED_SHIFT(led->id));
i2c_smbus_write_byte_data(client, LED_REG(maxleds, led->id), reg);
mutex_unlock(&data->update_lock);
}
@@ -260,7 +262,7 @@ static enum pca9532_state pca9532_getled(struct pca9532_led *led)
mutex_lock(&data->update_lock);
reg = i2c_smbus_read_byte_data(client, LED_REG(maxleds, led->id));
- ret = reg >> LED_NUM(led->id)/2;
+ ret = (reg & LED_MASK(led->id)) >> LED_SHIFT(led->id);
mutex_unlock(&data->update_lock);
return ret;
}
@@ -478,7 +480,12 @@ pca9532_of_populate_pdata(struct device *dev, struct device_node *np)
if (!pdata)
return ERR_PTR(-ENOMEM);
- for_each_child_of_node(np, child) {
+ of_property_read_u8_array(np, "nxp,pwm", &pdata->pwm[0],
+ ARRAY_SIZE(pdata->pwm));
+ of_property_read_u8_array(np, "nxp,psc", &pdata->psc[0],
+ ARRAY_SIZE(pdata->psc));
+
+ for_each_available_child_of_node(np, child) {
if (of_property_read_string(child, "label",
&pdata->leds[i].name))
pdata->leds[i].name = child->name;
@@ -507,7 +514,7 @@ static int pca9532_probe(struct i2c_client *client,
struct pca9532_data *data = i2c_get_clientdata(client);
struct pca9532_platform_data *pca9532_pdata =
dev_get_platdata(&client->dev);
- struct device_node *np = client->dev.of_node;
+ struct device_node *np = dev_of_node(&client->dev);
if (!pca9532_pdata) {
if (np) {
@@ -545,13 +552,8 @@ static int pca9532_probe(struct i2c_client *client,
static int pca9532_remove(struct i2c_client *client)
{
struct pca9532_data *data = i2c_get_clientdata(client);
- int err;
- err = pca9532_destroy_devices(data, data->chip_info->num_leds);
- if (err)
- return err;
-
- return 0;
+ return pca9532_destroy_devices(data, data->chip_info->num_leds);
}
module_i2c_driver(pca9532_driver);
diff --git a/drivers/leds/leds-pca955x.c b/drivers/leds/leds-pca955x.c
index 131f8e922adebe183060417ccde6c2d4a9d99227..7087ca4592fc964989cc1bf440bdb4fe9faf30e5 100644
--- a/drivers/leds/leds-pca955x.c
+++ b/drivers/leds/leds-pca955x.c
@@ -65,6 +65,7 @@ enum pca955x_type {
pca9550,
pca9551,
pca9552,
+ ibm_pca9552,
pca9553,
};
@@ -90,6 +91,11 @@ static struct pca955x_chipdef pca955x_chipdefs[] = {
.slv_addr = /* 1100xxx */ 0x60,
.slv_addr_shift = 3,
},
+ [ibm_pca9552] = {
+ .bits = 16,
+ .slv_addr = /* 0110xxx */ 0x30,
+ .slv_addr_shift = 3,
+ },
[pca9553] = {
.bits = 4,
.slv_addr = /* 110001x */ 0x62,
@@ -101,6 +107,7 @@ static const struct i2c_device_id pca955x_id[] = {
{ "pca9550", pca9550 },
{ "pca9551", pca9551 },
{ "pca9552", pca9552 },
+ { "ibm-pca9552", ibm_pca9552 },
{ "pca9553", pca9553 },
{ }
};
@@ -412,6 +419,7 @@ static const struct of_device_id of_pca955x_match[] = {
{ .compatible = "nxp,pca9550", .data = (void *)pca9550 },
{ .compatible = "nxp,pca9551", .data = (void *)pca9551 },
{ .compatible = "nxp,pca9552", .data = (void *)pca9552 },
+ { .compatible = "ibm,pca9552", .data = (void *)ibm_pca9552 },
{ .compatible = "nxp,pca9553", .data = (void *)pca9553 },
{},
};
diff --git a/drivers/leds/leds-pca963x.c b/drivers/leds/leds-pca963x.c
index d288acbc99c7c29c19c5bec1e312fa8cad16ca57..00aecd67e34834f3b2b719e318349d05d86ec06a 100644
--- a/drivers/leds/leds-pca963x.c
+++ b/drivers/leds/leds-pca963x.c
@@ -32,7 +32,6 @@
#include <linux/property.h>
#include <linux/slab.h>
#include <linux/of.h>
-#include <linux/platform_data/leds-pca963x.h>
/* LED select registers determine the source that drives LED outputs */
#define PCA963X_LED_OFF 0x0 /* LED driver off */
@@ -96,142 +95,148 @@ static const struct i2c_device_id pca963x_id[] = {
};
MODULE_DEVICE_TABLE(i2c, pca963x_id);
-struct pca963x_led;
-
-struct pca963x {
- struct pca963x_chipdef *chipdef;
- struct mutex mutex;
- struct i2c_client *client;
- struct pca963x_led *leds;
- unsigned long leds_on;
-};
+struct pca963x;
struct pca963x_led {
struct pca963x *chip;
struct led_classdev led_cdev;
int led_num; /* 0 .. 15 potentially */
- char name[32];
u8 gdc;
u8 gfrq;
};
-static int pca963x_brightness(struct pca963x_led *pca963x,
- enum led_brightness brightness)
+struct pca963x {
+ struct pca963x_chipdef *chipdef;
+ struct mutex mutex;
+ struct i2c_client *client;
+ unsigned long leds_on;
+ struct pca963x_led leds[];
+};
+
+static int pca963x_brightness(struct pca963x_led *led,
+ enum led_brightness brightness)
{
- u8 ledout_addr = pca963x->chip->chipdef->ledout_base
- + (pca963x->led_num / 4);
- u8 ledout;
- int shift = 2 * (pca963x->led_num % 4);
- u8 mask = 0x3 << shift;
+ struct i2c_client *client = led->chip->client;
+ struct pca963x_chipdef *chipdef = led->chip->chipdef;
+ u8 ledout_addr, ledout, mask, val;
+ int shift;
int ret;
- ledout = i2c_smbus_read_byte_data(pca963x->chip->client, ledout_addr);
+ ledout_addr = chipdef->ledout_base + (led->led_num / 4);
+ shift = 2 * (led->led_num % 4);
+ mask = 0x3 << shift;
+ ledout = i2c_smbus_read_byte_data(client, ledout_addr);
+
switch (brightness) {
case LED_FULL:
- ret = i2c_smbus_write_byte_data(pca963x->chip->client,
- ledout_addr,
- (ledout & ~mask) | (PCA963X_LED_ON << shift));
+ val = (ledout & ~mask) | (PCA963X_LED_ON << shift);
+ ret = i2c_smbus_write_byte_data(client, ledout_addr, val);
break;
case LED_OFF:
- ret = i2c_smbus_write_byte_data(pca963x->chip->client,
- ledout_addr, ledout & ~mask);
+ val = ledout & ~mask;
+ ret = i2c_smbus_write_byte_data(client, ledout_addr, val);
break;
default:
- ret = i2c_smbus_write_byte_data(pca963x->chip->client,
- PCA963X_PWM_BASE + pca963x->led_num,
- brightness);
+ ret = i2c_smbus_write_byte_data(client,
+ PCA963X_PWM_BASE +
+ led->led_num,
+ brightness);
if (ret < 0)
return ret;
- ret = i2c_smbus_write_byte_data(pca963x->chip->client,
- ledout_addr,
- (ledout & ~mask) | (PCA963X_LED_PWM << shift));
+
+ val = (ledout & ~mask) | (PCA963X_LED_PWM << shift);
+ ret = i2c_smbus_write_byte_data(client, ledout_addr, val);
break;
}
return ret;
}
-static void pca963x_blink(struct pca963x_led *pca963x)
+static void pca963x_blink(struct pca963x_led *led)
{
- u8 ledout_addr = pca963x->chip->chipdef->ledout_base +
- (pca963x->led_num / 4);
- u8 ledout;
- u8 mode2 = i2c_smbus_read_byte_data(pca963x->chip->client,
- PCA963X_MODE2);
- int shift = 2 * (pca963x->led_num % 4);
- u8 mask = 0x3 << shift;
+ struct i2c_client *client = led->chip->client;
+ struct pca963x_chipdef *chipdef = led->chip->chipdef;
+ u8 ledout_addr, ledout, mask, val, mode2;
+ int shift;
+
+ ledout_addr = chipdef->ledout_base + (led->led_num / 4);
+ shift = 2 * (led->led_num % 4);
+ mask = 0x3 << shift;
+ mode2 = i2c_smbus_read_byte_data(client, PCA963X_MODE2);
- i2c_smbus_write_byte_data(pca963x->chip->client,
- pca963x->chip->chipdef->grppwm, pca963x->gdc);
+ i2c_smbus_write_byte_data(client, chipdef->grppwm, led->gdc);
- i2c_smbus_write_byte_data(pca963x->chip->client,
- pca963x->chip->chipdef->grpfreq, pca963x->gfrq);
+ i2c_smbus_write_byte_data(client, chipdef->grpfreq, led->gfrq);
if (!(mode2 & PCA963X_MODE2_DMBLNK))
- i2c_smbus_write_byte_data(pca963x->chip->client, PCA963X_MODE2,
- mode2 | PCA963X_MODE2_DMBLNK);
-
- mutex_lock(&pca963x->chip->mutex);
- ledout = i2c_smbus_read_byte_data(pca963x->chip->client, ledout_addr);
- if ((ledout & mask) != (PCA963X_LED_GRP_PWM << shift))
- i2c_smbus_write_byte_data(pca963x->chip->client, ledout_addr,
- (ledout & ~mask) | (PCA963X_LED_GRP_PWM << shift));
- mutex_unlock(&pca963x->chip->mutex);
+ i2c_smbus_write_byte_data(client, PCA963X_MODE2,
+ mode2 | PCA963X_MODE2_DMBLNK);
+
+ mutex_lock(&led->chip->mutex);
+
+ ledout = i2c_smbus_read_byte_data(client, ledout_addr);
+ if ((ledout & mask) != (PCA963X_LED_GRP_PWM << shift)) {
+ val = (ledout & ~mask) | (PCA963X_LED_GRP_PWM << shift);
+ i2c_smbus_write_byte_data(client, ledout_addr, val);
+ }
+
+ mutex_unlock(&led->chip->mutex);
}
-static int pca963x_power_state(struct pca963x_led *pca963x)
+static int pca963x_power_state(struct pca963x_led *led)
{
- unsigned long *leds_on = &pca963x->chip->leds_on;
- unsigned long cached_leds = pca963x->chip->leds_on;
+ struct i2c_client *client = led->chip->client;
+ unsigned long *leds_on = &led->chip->leds_on;
+ unsigned long cached_leds = *leds_on;
- if (pca963x->led_cdev.brightness)
- set_bit(pca963x->led_num, leds_on);
+ if (led->led_cdev.brightness)
+ set_bit(led->led_num, leds_on);
else
- clear_bit(pca963x->led_num, leds_on);
+ clear_bit(led->led_num, leds_on);
if (!(*leds_on) != !cached_leds)
- return i2c_smbus_write_byte_data(pca963x->chip->client,
- PCA963X_MODE1, *leds_on ? 0 : BIT(4));
+ return i2c_smbus_write_byte_data(client, PCA963X_MODE1,
+ *leds_on ? 0 : BIT(4));
return 0;
}
static int pca963x_led_set(struct led_classdev *led_cdev,
- enum led_brightness value)
+ enum led_brightness value)
{
- struct pca963x_led *pca963x;
+ struct pca963x_led *led;
int ret;
- pca963x = container_of(led_cdev, struct pca963x_led, led_cdev);
+ led = container_of(led_cdev, struct pca963x_led, led_cdev);
- mutex_lock(&pca963x->chip->mutex);
+ mutex_lock(&led->chip->mutex);
- ret = pca963x_brightness(pca963x, value);
+ ret = pca963x_brightness(led, value);
if (ret < 0)
goto unlock;
- ret = pca963x_power_state(pca963x);
+ ret = pca963x_power_state(led);
unlock:
- mutex_unlock(&pca963x->chip->mutex);
+ mutex_unlock(&led->chip->mutex);
return ret;
}
-static unsigned int pca963x_period_scale(struct pca963x_led *pca963x,
- unsigned int val)
+static unsigned int pca963x_period_scale(struct pca963x_led *led,
+ unsigned int val)
{
- unsigned int scaling = pca963x->chip->chipdef->scaling;
+ unsigned int scaling = led->chip->chipdef->scaling;
return scaling ? DIV_ROUND_CLOSEST(val * scaling, 1000) : val;
}
static int pca963x_blink_set(struct led_classdev *led_cdev,
- unsigned long *delay_on, unsigned long *delay_off)
+ unsigned long *delay_on, unsigned long *delay_off)
{
- struct pca963x_led *pca963x;
unsigned long time_on, time_off, period;
+ struct pca963x_led *led;
u8 gdc, gfrq;
- pca963x = container_of(led_cdev, struct pca963x_led, led_cdev);
+ led = container_of(led_cdev, struct pca963x_led, led_cdev);
time_on = *delay_on;
time_off = *delay_off;
@@ -242,14 +247,14 @@ static int pca963x_blink_set(struct led_classdev *led_cdev,
time_off = 500;
}
- period = pca963x_period_scale(pca963x, time_on + time_off);
+ period = pca963x_period_scale(led, time_on + time_off);
/* If period not supported by hardware, default to someting sane. */
if ((period < PCA963X_BLINK_PERIOD_MIN) ||
(period > PCA963X_BLINK_PERIOD_MAX)) {
time_on = 500;
time_off = 500;
- period = pca963x_period_scale(pca963x, 1000);
+ period = pca963x_period_scale(led, 1000);
}
/*
@@ -257,7 +262,7 @@ static int pca963x_blink_set(struct led_classdev *led_cdev,
* (time_on / period) = (GDC / 256) ->
* GDC = ((time_on * 256) / period)
*/
- gdc = (pca963x_period_scale(pca963x, time_on) * 256) / period;
+ gdc = (pca963x_period_scale(led, time_on) * 256) / period;
/*
* From manual: period = ((GFRQ + 1) / 24) in seconds.
@@ -266,10 +271,10 @@ static int pca963x_blink_set(struct led_classdev *led_cdev,
*/
gfrq = (period * 24 / 1000) - 1;
- pca963x->gdc = gdc;
- pca963x->gfrq = gfrq;
+ led->gdc = gdc;
+ led->gfrq = gfrq;
- pca963x_blink(pca963x);
+ pca963x_blink(led);
*delay_on = time_on;
*delay_off = time_off;
@@ -277,72 +282,84 @@ static int pca963x_blink_set(struct led_classdev *led_cdev,
return 0;
}
-static struct pca963x_platform_data *
-pca963x_get_pdata(struct i2c_client *client, struct pca963x_chipdef *chip)
+static int pca963x_register_leds(struct i2c_client *client,
+ struct pca963x *chip)
{
- struct pca963x_platform_data *pdata;
- struct led_info *pca963x_leds;
+ struct pca963x_chipdef *chipdef = chip->chipdef;
+ struct pca963x_led *led = chip->leds;
+ struct device *dev = &client->dev;
struct fwnode_handle *child;
- int count;
-
- count = device_get_child_node_count(&client->dev);
- if (!count || count > chip->n_leds)
- return ERR_PTR(-ENODEV);
-
- pca963x_leds = devm_kcalloc(&client->dev,
- chip->n_leds, sizeof(struct led_info), GFP_KERNEL);
- if (!pca963x_leds)
- return ERR_PTR(-ENOMEM);
-
- device_for_each_child_node(&client->dev, child) {
- struct led_info led = {};
- u32 reg;
- int res;
-
- res = fwnode_property_read_u32(child, "reg", ®);
- if ((res != 0) || (reg >= chip->n_leds))
- continue;
+ bool hw_blink;
+ s32 mode2;
+ u32 reg;
+ int ret;
- res = fwnode_property_read_string(child, "label", &led.name);
- if ((res != 0) && is_of_node(child))
- led.name = to_of_node(child)->name;
+ if (device_property_read_u32(dev, "nxp,period-scale",
+ &chipdef->scaling))
+ chipdef->scaling = 1000;
- fwnode_property_read_string(child, "linux,default-trigger",
- &led.default_trigger);
+ hw_blink = device_property_read_bool(dev, "nxp,hw-blink");
- pca963x_leds[reg] = led;
- }
- pdata = devm_kzalloc(&client->dev,
- sizeof(struct pca963x_platform_data), GFP_KERNEL);
- if (!pdata)
- return ERR_PTR(-ENOMEM);
-
- pdata->leds.leds = pca963x_leds;
- pdata->leds.num_leds = chip->n_leds;
+ mode2 = i2c_smbus_read_byte_data(client, PCA963X_MODE2);
+ if (mode2 < 0)
+ return mode2;
/* default to open-drain unless totem pole (push-pull) is specified */
- if (device_property_read_bool(&client->dev, "nxp,totem-pole"))
- pdata->outdrv = PCA963X_TOTEM_POLE;
+ if (device_property_read_bool(dev, "nxp,totem-pole"))
+ mode2 |= PCA963X_MODE2_OUTDRV;
else
- pdata->outdrv = PCA963X_OPEN_DRAIN;
+ mode2 &= ~PCA963X_MODE2_OUTDRV;
- /* default to software blinking unless hardware blinking is specified */
- if (device_property_read_bool(&client->dev, "nxp,hw-blink"))
- pdata->blink_type = PCA963X_HW_BLINK;
+ /* default to non-inverted output, unless inverted is specified */
+ if (device_property_read_bool(dev, "nxp,inverted-out"))
+ mode2 |= PCA963X_MODE2_INVRT;
else
- pdata->blink_type = PCA963X_SW_BLINK;
+ mode2 &= ~PCA963X_MODE2_INVRT;
+
+ ret = i2c_smbus_write_byte_data(client, PCA963X_MODE2, mode2);
+ if (ret < 0)
+ return ret;
+
+ device_for_each_child_node(dev, child) {
+ struct led_init_data init_data = {};
+ char default_label[32];
+
+ ret = fwnode_property_read_u32(child, "reg", ®);
+ if (ret || reg >= chipdef->n_leds) {
+ dev_err(dev, "Invalid 'reg' property for node %pfw\n",
+ child);
+ ret = -EINVAL;
+ goto err;
+ }
- if (device_property_read_u32(&client->dev, "nxp,period-scale",
- &chip->scaling))
- chip->scaling = 1000;
+ led->led_num = reg;
+ led->chip = chip;
+ led->led_cdev.brightness_set_blocking = pca963x_led_set;
+ if (hw_blink)
+ led->led_cdev.blink_set = pca963x_blink_set;
+
+ init_data.fwnode = child;
+ /* for backwards compatibility */
+ init_data.devicename = "pca963x";
+ snprintf(default_label, sizeof(default_label), "%d:%.2x:%u",
+ client->adapter->nr, client->addr, reg);
+ init_data.default_label = default_label;
+
+ ret = devm_led_classdev_register_ext(dev, &led->led_cdev,
+ &init_data);
+ if (ret) {
+ dev_err(dev, "Failed to register LED for node %pfw\n",
+ child);
+ goto err;
+ }
- /* default to non-inverted output, unless inverted is specified */
- if (device_property_read_bool(&client->dev, "nxp,inverted-out"))
- pdata->dir = PCA963X_INVERTED;
- else
- pdata->dir = PCA963X_NORMAL;
+ ++led;
+ }
- return pdata;
+ return 0;
+err:
+ fwnode_handle_put(child);
+ return ret;
}
static const struct of_device_id of_pca963x_match[] = {
@@ -355,119 +372,40 @@ static const struct of_device_id of_pca963x_match[] = {
MODULE_DEVICE_TABLE(of, of_pca963x_match);
static int pca963x_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
+ const struct i2c_device_id *id)
{
- struct pca963x *pca963x_chip;
- struct pca963x_led *pca963x;
- struct pca963x_platform_data *pdata;
- struct pca963x_chipdef *chip;
- int i, err;
-
- chip = &pca963x_chipdefs[id->driver_data];
- pdata = dev_get_platdata(&client->dev);
-
- if (!pdata) {
- pdata = pca963x_get_pdata(client, chip);
- if (IS_ERR(pdata)) {
- dev_warn(&client->dev, "could not parse configuration\n");
- pdata = NULL;
- }
- }
+ struct device *dev = &client->dev;
+ struct pca963x_chipdef *chipdef;
+ struct pca963x *chip;
+ int i, count;
- if (pdata && (pdata->leds.num_leds < 1 ||
- pdata->leds.num_leds > chip->n_leds)) {
- dev_err(&client->dev, "board info must claim 1-%d LEDs",
- chip->n_leds);
+ chipdef = &pca963x_chipdefs[id->driver_data];
+
+ count = device_get_child_node_count(dev);
+ if (!count || count > chipdef->n_leds) {
+ dev_err(dev, "Node %pfw must define between 1 and %d LEDs\n",
+ dev_fwnode(dev), chipdef->n_leds);
return -EINVAL;
}
- pca963x_chip = devm_kzalloc(&client->dev, sizeof(*pca963x_chip),
- GFP_KERNEL);
- if (!pca963x_chip)
- return -ENOMEM;
- pca963x = devm_kcalloc(&client->dev, chip->n_leds, sizeof(*pca963x),
- GFP_KERNEL);
- if (!pca963x)
+ chip = devm_kzalloc(dev, struct_size(chip, leds, count), GFP_KERNEL);
+ if (!chip)
return -ENOMEM;
- i2c_set_clientdata(client, pca963x_chip);
+ i2c_set_clientdata(client, chip);
- mutex_init(&pca963x_chip->mutex);
- pca963x_chip->chipdef = chip;
- pca963x_chip->client = client;
- pca963x_chip->leds = pca963x;
+ mutex_init(&chip->mutex);
+ chip->chipdef = chipdef;
+ chip->client = client;
/* Turn off LEDs by default*/
- for (i = 0; i < chip->n_leds / 4; i++)
- i2c_smbus_write_byte_data(client, chip->ledout_base + i, 0x00);
-
- for (i = 0; i < chip->n_leds; i++) {
- pca963x[i].led_num = i;
- pca963x[i].chip = pca963x_chip;
-
- /* Platform data can specify LED names and default triggers */
- if (pdata && i < pdata->leds.num_leds) {
- if (pdata->leds.leds[i].name)
- snprintf(pca963x[i].name,
- sizeof(pca963x[i].name), "pca963x:%s",
- pdata->leds.leds[i].name);
- if (pdata->leds.leds[i].default_trigger)
- pca963x[i].led_cdev.default_trigger =
- pdata->leds.leds[i].default_trigger;
- }
- if (!pdata || i >= pdata->leds.num_leds ||
- !pdata->leds.leds[i].name)
- snprintf(pca963x[i].name, sizeof(pca963x[i].name),
- "pca963x:%d:%.2x:%d", client->adapter->nr,
- client->addr, i);
-
- pca963x[i].led_cdev.name = pca963x[i].name;
- pca963x[i].led_cdev.brightness_set_blocking = pca963x_led_set;
-
- if (pdata && pdata->blink_type == PCA963X_HW_BLINK)
- pca963x[i].led_cdev.blink_set = pca963x_blink_set;
-
- err = led_classdev_register(&client->dev, &pca963x[i].led_cdev);
- if (err < 0)
- goto exit;
- }
+ for (i = 0; i < chipdef->n_leds / 4; i++)
+ i2c_smbus_write_byte_data(client, chipdef->ledout_base + i, 0x00);
/* Disable LED all-call address, and power down initially */
i2c_smbus_write_byte_data(client, PCA963X_MODE1, BIT(4));
- if (pdata) {
- u8 mode2 = i2c_smbus_read_byte_data(pca963x->chip->client,
- PCA963X_MODE2);
- /* Configure output: open-drain or totem pole (push-pull) */
- if (pdata->outdrv == PCA963X_OPEN_DRAIN)
- mode2 &= ~PCA963X_MODE2_OUTDRV;
- else
- mode2 |= PCA963X_MODE2_OUTDRV;
- /* Configure direction: normal or inverted */
- if (pdata->dir == PCA963X_INVERTED)
- mode2 |= PCA963X_MODE2_INVRT;
- i2c_smbus_write_byte_data(pca963x->chip->client, PCA963X_MODE2,
- mode2);
- }
-
- return 0;
-
-exit:
- while (i--)
- led_classdev_unregister(&pca963x[i].led_cdev);
-
- return err;
-}
-
-static int pca963x_remove(struct i2c_client *client)
-{
- struct pca963x *pca963x = i2c_get_clientdata(client);
- int i;
-
- for (i = 0; i < pca963x->chipdef->n_leds; i++)
- led_classdev_unregister(&pca963x->leds[i].led_cdev);
-
- return 0;
+ return pca963x_register_leds(client, chip);
}
static struct i2c_driver pca963x_driver = {
@@ -476,7 +414,6 @@ static struct i2c_driver pca963x_driver = {
.of_match_table = of_pca963x_match,
},
.probe = pca963x_probe,
- .remove = pca963x_remove,
.id_table = pca963x_id,
};
diff --git a/drivers/leds/leds-pm8058.c b/drivers/leds/leds-pm8058.c
index 7869ccdf70ce643ce283b33ab4c6aeffcbd7c4a5..fb2ab72c0c40c78b812e3b5658862bfb3e227e55 100644
--- a/drivers/leds/leds-pm8058.c
+++ b/drivers/leds/leds-pm8058.c
@@ -87,36 +87,36 @@ static enum led_brightness pm8058_led_get(struct led_classdev *cled)
static int pm8058_led_probe(struct platform_device *pdev)
{
+ struct led_init_data init_data = {};
+ struct device *dev = &pdev->dev;
struct pm8058_led *led;
- struct device_node *np = pdev->dev.of_node;
+ struct device_node *np;
int ret;
struct regmap *map;
const char *state;
enum led_brightness maxbright;
- led = devm_kzalloc(&pdev->dev, sizeof(*led), GFP_KERNEL);
+ led = devm_kzalloc(dev, sizeof(*led), GFP_KERNEL);
if (!led)
return -ENOMEM;
- led->ledtype = (u32)(unsigned long)of_device_get_match_data(&pdev->dev);
+ led->ledtype = (u32)(unsigned long)of_device_get_match_data(dev);
- map = dev_get_regmap(pdev->dev.parent, NULL);
+ map = dev_get_regmap(dev->parent, NULL);
if (!map) {
- dev_err(&pdev->dev, "Parent regmap unavailable.\n");
+ dev_err(dev, "Parent regmap unavailable.\n");
return -ENXIO;
}
led->map = map;
+ np = dev_of_node(dev);
+
ret = of_property_read_u32(np, "reg", &led->reg);
if (ret) {
- dev_err(&pdev->dev, "no register offset specified\n");
+ dev_err(dev, "no register offset specified\n");
return -EINVAL;
}
- /* Use label else node name */
- led->cdev.name = of_get_property(np, "label", NULL) ? : np->name;
- led->cdev.default_trigger =
- of_get_property(np, "linux,default-trigger", NULL);
led->cdev.brightness_set = pm8058_led_set;
led->cdev.brightness_get = pm8058_led_get;
if (led->ledtype == PM8058_LED_TYPE_COMMON)
@@ -142,14 +142,13 @@ static int pm8058_led_probe(struct platform_device *pdev)
led->ledtype == PM8058_LED_TYPE_FLASH)
led->cdev.flags = LED_CORE_SUSPENDRESUME;
- ret = devm_led_classdev_register(&pdev->dev, &led->cdev);
- if (ret) {
- dev_err(&pdev->dev, "unable to register led \"%s\"\n",
- led->cdev.name);
- return ret;
- }
+ init_data.fwnode = of_fwnode_handle(np);
+
+ ret = devm_led_classdev_register_ext(dev, &led->cdev, &init_data);
+ if (ret)
+ dev_err(dev, "Failed to register LED for %pOF\n", np);
- return 0;
+ return ret;
}
static const struct of_device_id pm8058_leds_id_table[] = {
diff --git a/drivers/leds/leds-powernv.c b/drivers/leds/leds-powernv.c
index cd43d5dff7f48a0c532cc61af02ac8040821364f..743e2cdd0891b3bf96985f8edc14bfff26fbb50a 100644
--- a/drivers/leds/leds-powernv.c
+++ b/drivers/leds/leds-powernv.c
@@ -250,7 +250,7 @@ static int powernv_led_classdev(struct platform_device *pdev,
struct powernv_led_data *powernv_led;
struct device *dev = &pdev->dev;
- for_each_child_of_node(led_node, np) {
+ for_each_available_child_of_node(led_node, np) {
p = of_find_property(np, "led-types", NULL);
while ((cur = of_prop_next_string(p, cur)) != NULL) {
diff --git a/drivers/leds/leds-pwm.c b/drivers/leds/leds-pwm.c
index ef7b91bd2064f40401142c3f7bb252c929631c00..f53f9309ca6cca95adca94ad922ebd6aed98d9ec 100644
--- a/drivers/leds/leds-pwm.c
+++ b/drivers/leds/leds-pwm.c
@@ -20,16 +20,10 @@
struct led_pwm {
const char *name;
- const char *default_trigger;
u8 active_low;
unsigned int max_brightness;
};
-struct led_pwm_platform_data {
- int num_leds;
- struct led_pwm *leds;
-};
-
struct led_pwm_data {
struct led_classdev cdev;
struct pwm_device *pwm;
@@ -61,36 +55,31 @@ static int led_pwm_set(struct led_classdev *led_cdev,
return pwm_apply_state(led_dat->pwm, &led_dat->pwmstate);
}
+__attribute__((nonnull))
static int led_pwm_add(struct device *dev, struct led_pwm_priv *priv,
struct led_pwm *led, struct fwnode_handle *fwnode)
{
struct led_pwm_data *led_data = &priv->leds[priv->num_leds];
+ struct led_init_data init_data = { .fwnode = fwnode };
int ret;
led_data->active_low = led->active_low;
led_data->cdev.name = led->name;
- led_data->cdev.default_trigger = led->default_trigger;
led_data->cdev.brightness = LED_OFF;
led_data->cdev.max_brightness = led->max_brightness;
led_data->cdev.flags = LED_CORE_SUSPENDRESUME;
- if (fwnode)
- led_data->pwm = devm_fwnode_pwm_get(dev, fwnode, NULL);
- else
- led_data->pwm = devm_pwm_get(dev, led->name);
- if (IS_ERR(led_data->pwm)) {
- ret = PTR_ERR(led_data->pwm);
- if (ret != -EPROBE_DEFER)
- dev_err(dev, "unable to request PWM for %s: %d\n",
- led->name, ret);
- return ret;
- }
+ led_data->pwm = devm_fwnode_pwm_get(dev, fwnode, NULL);
+ if (IS_ERR(led_data->pwm))
+ return dev_err_probe(dev, PTR_ERR(led_data->pwm),
+ "unable to request PWM for %s\n",
+ led->name);
led_data->cdev.brightness_set_blocking = led_pwm_set;
pwm_init_state(led_data->pwm, &led_data->pwmstate);
- ret = devm_led_classdev_register(dev, &led_data->cdev);
+ ret = devm_led_classdev_register_ext(dev, &led_data->cdev, &init_data);
if (ret) {
dev_err(dev, "failed to register PWM led for %s: %d\n",
led->name, ret);
@@ -126,9 +115,6 @@ static int led_pwm_create_fwnode(struct device *dev, struct led_pwm_priv *priv)
return -EINVAL;
}
- fwnode_property_read_string(fwnode, "linux,default-trigger",
- &led.default_trigger);
-
led.active_low = fwnode_property_read_bool(fwnode,
"active-low");
fwnode_property_read_u32(fwnode, "max-brightness",
@@ -146,15 +132,11 @@ static int led_pwm_create_fwnode(struct device *dev, struct led_pwm_priv *priv)
static int led_pwm_probe(struct platform_device *pdev)
{
- struct led_pwm_platform_data *pdata = dev_get_platdata(&pdev->dev);
struct led_pwm_priv *priv;
- int count, i;
int ret = 0;
+ int count;
- if (pdata)
- count = pdata->num_leds;
- else
- count = device_get_child_node_count(&pdev->dev);
+ count = device_get_child_node_count(&pdev->dev);
if (!count)
return -EINVAL;
@@ -164,16 +146,7 @@ static int led_pwm_probe(struct platform_device *pdev)
if (!priv)
return -ENOMEM;
- if (pdata) {
- for (i = 0; i < count; i++) {
- ret = led_pwm_add(&pdev->dev, priv, &pdata->leds[i],
- NULL);
- if (ret)
- break;
- }
- } else {
- ret = led_pwm_create_fwnode(&pdev->dev, priv);
- }
+ ret = led_pwm_create_fwnode(&pdev->dev, priv);
if (ret)
return ret;
diff --git a/drivers/leds/leds-s3c24xx.c b/drivers/leds/leds-s3c24xx.c
index 9b5e67664ba3c420f3ff9519355dc136a9f3f499..3c0c7aa63b8cdd1c0b4adbe00d68ec02537da9a2 100644
--- a/drivers/leds/leds-s3c24xx.c
+++ b/drivers/leds/leds-s3c24xx.c
@@ -16,8 +16,6 @@
#include <linux/module.h>
#include <linux/platform_data/leds-s3c24xx.h>
-#include <mach/regs-gpio.h>
-
/* our context */
struct s3c24xx_gpio_led {
diff --git a/drivers/leds/leds-sc27xx-bltc.c b/drivers/leds/leds-sc27xx-bltc.c
index 0ede87420bfc7f2470b60d255ed80c029d98da5a..e199ea15e40680ff1053b400f5fdbc931a54683a 100644
--- a/drivers/leds/leds-sc27xx-bltc.c
+++ b/drivers/leds/leds-sc27xx-bltc.c
@@ -276,12 +276,12 @@ static int sc27xx_led_register(struct device *dev, struct sc27xx_led_priv *priv)
static int sc27xx_led_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
- struct device_node *np = dev->of_node, *child;
+ struct device_node *np = dev_of_node(dev), *child;
struct sc27xx_led_priv *priv;
u32 base, count, reg;
int err;
- count = of_get_child_count(np);
+ count = of_get_available_child_count(np);
if (!count || count > SC27XX_LEDS_MAX)
return -EINVAL;
@@ -305,7 +305,7 @@ static int sc27xx_led_probe(struct platform_device *pdev)
return err;
}
- for_each_child_of_node(np, child) {
+ for_each_available_child_of_node(np, child) {
err = of_property_read_u32(child, "reg", ®);
if (err) {
of_node_put(child);
diff --git a/drivers/leds/leds-sgm3140.c b/drivers/leds/leds-sgm3140.c
index c494b934ae095a3cefa1e417cec5a70f65820884..f4f831570f11c442b8b4c9887fc482c6c15678f2 100644
--- a/drivers/leds/leds-sgm3140.c
+++ b/drivers/leds/leds-sgm3140.c
@@ -195,30 +195,21 @@ static int sgm3140_probe(struct platform_device *pdev)
priv->flash_gpio = devm_gpiod_get(&pdev->dev, "flash", GPIOD_OUT_LOW);
ret = PTR_ERR_OR_ZERO(priv->flash_gpio);
- if (ret) {
- if (ret != -EPROBE_DEFER)
- dev_err(&pdev->dev,
- "Failed to request flash gpio: %d\n", ret);
- return ret;
- }
+ if (ret)
+ return dev_err_probe(&pdev->dev, ret,
+ "Failed to request flash gpio\n");
priv->enable_gpio = devm_gpiod_get(&pdev->dev, "enable", GPIOD_OUT_LOW);
ret = PTR_ERR_OR_ZERO(priv->enable_gpio);
- if (ret) {
- if (ret != -EPROBE_DEFER)
- dev_err(&pdev->dev,
- "Failed to request enable gpio: %d\n", ret);
- return ret;
- }
+ if (ret)
+ return dev_err_probe(&pdev->dev, ret,
+ "Failed to request enable gpio\n");
priv->vin_regulator = devm_regulator_get(&pdev->dev, "vin");
ret = PTR_ERR_OR_ZERO(priv->vin_regulator);
- if (ret) {
- if (ret != -EPROBE_DEFER)
- dev_err(&pdev->dev,
- "Failed to request regulator: %d\n", ret);
- return ret;
- }
+ if (ret)
+ return dev_err_probe(&pdev->dev, ret,
+ "Failed to request regulator\n");
child_node = fwnode_get_next_available_child_node(pdev->dev.fwnode,
NULL);
@@ -316,5 +307,5 @@ static struct platform_driver sgm3140_driver = {
module_platform_driver(sgm3140_driver);
MODULE_AUTHOR("Luca Weiss <luca@z3ntu.xyz>");
-MODULE_DESCRIPTION("SG Micro SGM3140 charge pump led driver");
+MODULE_DESCRIPTION("SG Micro SGM3140 charge pump LED driver");
MODULE_LICENSE("GPL v2");
diff --git a/drivers/leds/leds-spi-byte.c b/drivers/leds/leds-spi-byte.c
index b231b563b7bbd71b66b7ec53640afafafe1e6e48..f1964c96fb15915435bc3a4d0d9379d0bcc1b2ff 100644
--- a/drivers/leds/leds-spi-byte.c
+++ b/drivers/leds/leds-spi-byte.c
@@ -80,7 +80,6 @@ static int spi_byte_brightness_set_blocking(struct led_classdev *dev,
static int spi_byte_probe(struct spi_device *spi)
{
- const struct of_device_id *of_dev_id;
struct device_node *child;
struct device *dev = &spi->dev;
struct spi_byte_led *led;
@@ -88,15 +87,11 @@ static int spi_byte_probe(struct spi_device *spi)
const char *state;
int ret;
- of_dev_id = of_match_device(spi_byte_dt_ids, dev);
- if (!of_dev_id)
- return -EINVAL;
-
- if (of_get_child_count(dev->of_node) != 1) {
+ if (of_get_available_child_count(dev_of_node(dev)) != 1) {
dev_err(dev, "Device must have exactly one LED sub-node.");
return -EINVAL;
}
- child = of_get_next_child(dev->of_node, NULL);
+ child = of_get_next_available_child(dev_of_node(dev), NULL);
led = devm_kzalloc(dev, sizeof(*led), GFP_KERNEL);
if (!led)
@@ -106,7 +101,7 @@ static int spi_byte_probe(struct spi_device *spi)
strlcpy(led->name, name, sizeof(led->name));
led->spi = spi;
mutex_init(&led->mutex);
- led->cdef = of_dev_id->data;
+ led->cdef = device_get_match_data(dev);
led->ldev.name = led->name;
led->ldev.brightness = LED_OFF;
led->ldev.max_brightness = led->cdef->max_value - led->cdef->off_value;
diff --git a/drivers/leds/leds-syscon.c b/drivers/leds/leds-syscon.c
index b58f3cafe16f4bf8324c21b6abf49025ea56d8f5..7eddb8ecb44ec4d5c64361e42471c6d6ce830405 100644
--- a/drivers/leds/leds-syscon.c
+++ b/drivers/leds/leds-syscon.c
@@ -55,8 +55,9 @@ static void syscon_led_set(struct led_classdev *led_cdev,
static int syscon_led_probe(struct platform_device *pdev)
{
+ struct led_init_data init_data = {};
struct device *dev = &pdev->dev;
- struct device_node *np = dev->of_node;
+ struct device_node *np = dev_of_node(dev);
struct device *parent;
struct regmap *map;
struct syscon_led *sled;
@@ -68,7 +69,7 @@ static int syscon_led_probe(struct platform_device *pdev)
dev_err(dev, "no parent for syscon LED\n");
return -ENODEV;
}
- map = syscon_node_to_regmap(parent->of_node);
+ map = syscon_node_to_regmap(dev_of_node(parent));
if (IS_ERR(map)) {
dev_err(dev, "no regmap for syscon LED parent\n");
return PTR_ERR(map);
@@ -84,10 +85,6 @@ static int syscon_led_probe(struct platform_device *pdev)
return -EINVAL;
if (of_property_read_u32(np, "mask", &sled->mask))
return -EINVAL;
- sled->cdev.name =
- of_get_property(np, "label", NULL) ? : np->name;
- sled->cdev.default_trigger =
- of_get_property(np, "linux,default-trigger", NULL);
state = of_get_property(np, "default-state", NULL);
if (state) {
@@ -115,7 +112,9 @@ static int syscon_led_probe(struct platform_device *pdev)
}
sled->cdev.brightness_set = syscon_led_set;
- ret = devm_led_classdev_register(dev, &sled->cdev);
+ init_data.fwnode = of_fwnode_handle(np);
+
+ ret = devm_led_classdev_register_ext(dev, &sled->cdev, &init_data);
if (ret < 0)
return ret;
diff --git a/drivers/leds/leds-tca6507.c b/drivers/leds/leds-tca6507.c
index 1128ac75443c0489d1639eaeb04c058902321aa5..225b765830bdc75d729a4123c0077dee3d817e54 100644
--- a/drivers/leds/leds-tca6507.c
+++ b/drivers/leds/leds-tca6507.c
@@ -69,23 +69,6 @@
* defaulted. Similarly the banks know if each time was explicit or a
* default. Defaults are permitted to be changed freely - they are
* not recognised when matching.
- *
- *
- * An led-tca6507 device must be provided with platform data or
- * configured via devicetree.
- *
- * The platform-data lists for each output: the name, default trigger,
- * and whether the signal is being used as a GPIO rather than an LED.
- * 'struct led_plaform_data' is used for this. If 'name' is NULL, the
- * output isn't used. If 'flags' is TCA6507_MAKE_GPIO, the output is
- * a GPO. The "struct led_platform_data" can be embedded in a "struct
- * tca6507_platform_data" which adds a 'gpio_base' for the GPIOs, and
- * a 'setup' callback which is called once the GPIOs are available.
- *
- * When configured via devicetree there is one child for each output.
- * The "reg" determines the output number and "compatible" determines
- * whether it is an LED or a GPIO. "linux,default-trigger" can set a
- * default trigger.
*/
#include <linux/module.h>
@@ -94,9 +77,8 @@
#include <linux/err.h>
#include <linux/i2c.h>
#include <linux/gpio/driver.h>
+#include <linux/property.h>
#include <linux/workqueue.h>
-#include <linux/leds-tca6507.h>
-#include <linux/of.h>
/* LED select registers determine the source that drives LED outputs */
#define TCA6507_LS_LED_OFF 0x0 /* Output HI-Z (off) */
@@ -108,6 +90,15 @@
#define TCA6507_LS_BLINK0 0x6 /* Blink at Bank0 rate */
#define TCA6507_LS_BLINK1 0x7 /* Blink at Bank1 rate */
+struct tca6507_platform_data {
+ struct led_platform_data leds;
+#ifdef CONFIG_GPIOLIB
+ int gpio_base;
+#endif
+};
+
+#define TCA6507_MAKE_GPIO 1
+
enum {
BANK0,
BANK1,
@@ -189,7 +180,6 @@ struct tca6507_chip {
} leds[NUM_LEDS];
#ifdef CONFIG_GPIOLIB
struct gpio_chip gpio;
- const char *gpio_name[NUM_LEDS];
int gpio_map[NUM_LEDS];
#endif
};
@@ -628,7 +618,7 @@ static int tca6507_gpio_direction_output(struct gpio_chip *gc,
return 0;
}
-static int tca6507_probe_gpios(struct i2c_client *client,
+static int tca6507_probe_gpios(struct device *dev,
struct tca6507_chip *tca,
struct tca6507_platform_data *pdata)
{
@@ -639,7 +629,6 @@ static int tca6507_probe_gpios(struct i2c_client *client,
for (i = 0; i < NUM_LEDS; i++)
if (pdata->leds.leds[i].name && pdata->leds.leds[i].flags) {
/* Configure as a gpio */
- tca->gpio_name[gpios] = pdata->leds.leds[i].name;
tca->gpio_map[gpios] = i;
gpios++;
}
@@ -648,23 +637,20 @@ static int tca6507_probe_gpios(struct i2c_client *client,
return 0;
tca->gpio.label = "gpio-tca6507";
- tca->gpio.names = tca->gpio_name;
tca->gpio.ngpio = gpios;
tca->gpio.base = pdata->gpio_base;
tca->gpio.owner = THIS_MODULE;
tca->gpio.direction_output = tca6507_gpio_direction_output;
tca->gpio.set = tca6507_gpio_set_value;
- tca->gpio.parent = &client->dev;
+ tca->gpio.parent = dev;
#ifdef CONFIG_OF_GPIO
- tca->gpio.of_node = of_node_get(client->dev.of_node);
+ tca->gpio.of_node = of_node_get(dev_of_node(dev));
#endif
err = gpiochip_add_data(&tca->gpio, tca);
if (err) {
tca->gpio.ngpio = 0;
return err;
}
- if (pdata->setup)
- pdata->setup(tca->gpio.base, tca->gpio.ngpio);
return 0;
}
@@ -674,7 +660,7 @@ static void tca6507_remove_gpio(struct tca6507_chip *tca)
gpiochip_remove(&tca->gpio);
}
#else /* CONFIG_GPIOLIB */
-static int tca6507_probe_gpios(struct i2c_client *client,
+static int tca6507_probe_gpios(struct device *dev,
struct tca6507_chip *tca,
struct tca6507_platform_data *pdata)
{
@@ -685,44 +671,50 @@ static void tca6507_remove_gpio(struct tca6507_chip *tca)
}
#endif /* CONFIG_GPIOLIB */
-#ifdef CONFIG_OF
static struct tca6507_platform_data *
-tca6507_led_dt_init(struct i2c_client *client)
+tca6507_led_dt_init(struct device *dev)
{
- struct device_node *np = client->dev.of_node, *child;
struct tca6507_platform_data *pdata;
+ struct fwnode_handle *child;
struct led_info *tca_leds;
int count;
- count = of_get_child_count(np);
+ count = device_get_child_node_count(dev);
if (!count || count > NUM_LEDS)
return ERR_PTR(-ENODEV);
- tca_leds = devm_kcalloc(&client->dev,
- NUM_LEDS, sizeof(struct led_info), GFP_KERNEL);
+ tca_leds = devm_kcalloc(dev, NUM_LEDS, sizeof(struct led_info),
+ GFP_KERNEL);
if (!tca_leds)
return ERR_PTR(-ENOMEM);
- for_each_child_of_node(np, child) {
+ device_for_each_child_node(dev, child) {
struct led_info led;
u32 reg;
int ret;
- led.name =
- of_get_property(child, "label", NULL) ? : child->name;
- led.default_trigger =
- of_get_property(child, "linux,default-trigger", NULL);
+ if (fwnode_property_read_string(child, "label", &led.name))
+ led.name = fwnode_get_name(child);
+
+ fwnode_property_read_string(child, "linux,default-trigger",
+ &led.default_trigger);
+
led.flags = 0;
- if (of_property_match_string(child, "compatible", "gpio") >= 0)
+ if (fwnode_property_match_string(child, "compatible",
+ "gpio") >= 0)
led.flags |= TCA6507_MAKE_GPIO;
- ret = of_property_read_u32(child, "reg", ®);
- if (ret != 0 || reg >= NUM_LEDS)
- continue;
+
+ ret = fwnode_property_read_u32(child, "reg", ®);
+ if (ret || reg >= NUM_LEDS) {
+ fwnode_handle_put(child);
+ return ERR_PTR(ret ? : -EINVAL);
+ }
tca_leds[reg] = led;
}
- pdata = devm_kzalloc(&client->dev,
- sizeof(struct tca6507_platform_data), GFP_KERNEL);
+
+ pdata = devm_kzalloc(dev, sizeof(struct tca6507_platform_data),
+ GFP_KERNEL);
if (!pdata)
return ERR_PTR(-ENOMEM);
@@ -731,48 +723,37 @@ tca6507_led_dt_init(struct i2c_client *client)
#ifdef CONFIG_GPIOLIB
pdata->gpio_base = -1;
#endif
+
return pdata;
}
-static const struct of_device_id of_tca6507_leds_match[] = {
+static const struct of_device_id __maybe_unused of_tca6507_leds_match[] = {
{ .compatible = "ti,tca6507", },
{},
};
MODULE_DEVICE_TABLE(of, of_tca6507_leds_match);
-#else
-static struct tca6507_platform_data *
-tca6507_led_dt_init(struct i2c_client *client)
-{
- return ERR_PTR(-ENODEV);
-}
-
-#endif
-
static int tca6507_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
- struct tca6507_chip *tca;
+ struct device *dev = &client->dev;
struct i2c_adapter *adapter;
+ struct tca6507_chip *tca;
struct tca6507_platform_data *pdata;
int err;
int i = 0;
adapter = client->adapter;
- pdata = dev_get_platdata(&client->dev);
if (!i2c_check_functionality(adapter, I2C_FUNC_I2C))
return -EIO;
- if (!pdata || pdata->leds.num_leds != NUM_LEDS) {
- pdata = tca6507_led_dt_init(client);
- if (IS_ERR(pdata)) {
- dev_err(&client->dev, "Need %d entries in platform-data list\n",
- NUM_LEDS);
- return PTR_ERR(pdata);
- }
+ pdata = tca6507_led_dt_init(dev);
+ if (IS_ERR(pdata)) {
+ dev_err(dev, "Need %d entries in platform-data list\n", NUM_LEDS);
+ return PTR_ERR(pdata);
}
- tca = devm_kzalloc(&client->dev, sizeof(*tca), GFP_KERNEL);
+ tca = devm_kzalloc(dev, sizeof(*tca), GFP_KERNEL);
if (!tca)
return -ENOMEM;
@@ -793,13 +774,12 @@ static int tca6507_probe(struct i2c_client *client,
l->led_cdev.brightness_set = tca6507_brightness_set;
l->led_cdev.blink_set = tca6507_blink_set;
l->bank = -1;
- err = led_classdev_register(&client->dev,
- &l->led_cdev);
+ err = led_classdev_register(dev, &l->led_cdev);
if (err < 0)
goto exit;
}
}
- err = tca6507_probe_gpios(client, tca, pdata);
+ err = tca6507_probe_gpios(dev, tca, pdata);
if (err)
goto exit;
/* set all registers to known state - zero */
diff --git a/drivers/leds/leds-tlc591xx.c b/drivers/leds/leds-tlc591xx.c
index 0929f127581427e8f3a247ac5ba49faafdb3eca3..5b9dfdf743ecdc49633ad94fc7edb8d88e3c5d41 100644
--- a/drivers/leds/leds-tlc591xx.c
+++ b/drivers/leds/leds-tlc591xx.c
@@ -148,22 +148,17 @@ static int
tlc591xx_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
- struct device_node *np = client->dev.of_node, *child;
+ struct device_node *np = dev_of_node(&client->dev), *child;
struct device *dev = &client->dev;
- const struct of_device_id *match;
const struct tlc591xx *tlc591xx;
struct tlc591xx_priv *priv;
int err, count, reg;
- match = of_match_device(of_tlc591xx_leds_match, dev);
- if (!match)
- return -ENODEV;
-
- tlc591xx = match->data;
+ tlc591xx = device_get_match_data(dev);
if (!np)
return -ENODEV;
- count = of_get_child_count(np);
+ count = of_get_available_child_count(np);
if (!count || count > tlc591xx->max_leds)
return -EINVAL;
@@ -185,7 +180,7 @@ tlc591xx_probe(struct i2c_client *client,
if (err < 0)
return err;
- for_each_child_of_node(np, child) {
+ for_each_available_child_of_node(np, child) {
struct tlc591xx_led *led;
struct led_init_data init_data = {};
@@ -204,9 +199,6 @@ tlc591xx_probe(struct i2c_client *client,
led = &priv->leds[reg];
led->active = true;
- led->ldev.default_trigger =
- of_get_property(child, "linux,default-trigger", NULL);
-
led->priv = priv;
led->led_no = reg;
led->ldev.brightness_set_blocking = tlc591xx_brightness_set;
@@ -214,10 +206,10 @@ tlc591xx_probe(struct i2c_client *client,
err = devm_led_classdev_register_ext(dev, &led->ldev,
&init_data);
if (err < 0) {
- if (err != -EPROBE_DEFER)
- dev_err(dev, "couldn't register LED %s\n",
- led->ldev.name);
- return err;
+ of_node_put(child);
+ return dev_err_probe(dev, err,
+ "couldn't register LED %s\n",
+ led->ldev.name);
}
}
return 0;
diff --git a/drivers/leds/leds-turris-omnia.c b/drivers/leds/leds-turris-omnia.c
index bb23d8e166144b80a3cf16e82d4b82da05078355..8c5bdc3847ee73a7bbac0ce39b3b3bcd58058745 100644
--- a/drivers/leds/leds-turris-omnia.c
+++ b/drivers/leds/leds-turris-omnia.c
@@ -121,8 +121,6 @@ static int omnia_led_register(struct i2c_client *client, struct omnia_led *led,
cdev->max_brightness = 255;
cdev->brightness_set_blocking = omnia_led_brightness_set_blocking;
- of_property_read_string(np, "linux,default-trigger", &cdev->default_trigger);
-
/* put the LED into software mode */
ret = i2c_smbus_write_byte_data(client, CMD_LED_MODE,
CMD_LED_MODE_LED(led->reg) |
@@ -210,7 +208,7 @@ static int omnia_leds_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct device *dev = &client->dev;
- struct device_node *np = dev->of_node, *child;
+ struct device_node *np = dev_of_node(dev), *child;
struct omnia_leds *leds;
struct omnia_led *led;
int ret, count;
@@ -236,8 +234,10 @@ static int omnia_leds_probe(struct i2c_client *client,
led = &leds->leds[0];
for_each_available_child_of_node(np, child) {
ret = omnia_led_register(client, led, child);
- if (ret < 0)
+ if (ret < 0) {
+ of_node_put(child);
return ret;
+ }
led += ret;
}
diff --git a/drivers/leds/trigger/ledtrig-cpu.c b/drivers/leds/trigger/ledtrig-cpu.c
index 869976d1b734e845d972d942917ea15faf45357d..fca62d50359096315037f0cfada62e0e0c2828c1 100644
--- a/drivers/leds/trigger/ledtrig-cpu.c
+++ b/drivers/leds/trigger/ledtrig-cpu.c
@@ -2,14 +2,18 @@
/*
* ledtrig-cpu.c - LED trigger based on CPU activity
*
- * This LED trigger will be registered for each possible CPU and named as
- * cpu0, cpu1, cpu2, cpu3, etc.
+ * This LED trigger will be registered for first 8 CPUs and named
+ * as cpu0..cpu7. There's additional trigger called cpu that
+ * is on when any CPU is active.
+ *
+ * If you want support for arbitrary number of CPUs, make it one trigger,
+ * with additional sysfs file selecting which CPU to watch.
*
* It can be bound to any LED just like other triggers using either a
* board file or via sysfs interface.
*
* An API named ledtrig_cpu is exported for any user, who want to add CPU
- * activity indication in their code
+ * activity indication in their code.
*
* Copyright 2011 Linus Walleij <linus.walleij@linaro.org>
* Copyright 2011 - 2012 Bryan Wu <bryan.wu@canonical.com>
@@ -145,6 +149,9 @@ static int __init ledtrig_cpu_init(void)
for_each_possible_cpu(cpu) {
struct led_trigger_cpu *trig = &per_cpu(cpu_trig, cpu);
+ if (cpu >= 8)
+ continue;
+
snprintf(trig->name, MAX_NAME_LEN, "cpu%d", cpu);
led_trigger_register_simple(trig->name, &trig->_trig);
diff --git a/include/linux/leds-tca6507.h b/include/linux/leds-tca6507.h
deleted file mode 100644
index 50d330ed11005893853e705a1aea74bc92a0403e..0000000000000000000000000000000000000000
--- a/include/linux/leds-tca6507.h
+++ /dev/null
@@ -1,21 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * TCA6507 LED chip driver.
- *
- * Copyright (C) 2011 Neil Brown <neil@brown.name>
- */
-
-#ifndef __LINUX_TCA6507_H
-#define __LINUX_TCA6507_H
-#include <linux/leds.h>
-
-struct tca6507_platform_data {
- struct led_platform_data leds;
-#ifdef CONFIG_GPIOLIB
- int gpio_base;
- void (*setup)(unsigned gpio_base, unsigned ngpio);
-#endif
-};
-
-#define TCA6507_MAKE_GPIO 1
-#endif /* __LINUX_TCA6507_H*/
diff --git a/include/linux/platform_data/leds-pca963x.h b/include/linux/platform_data/leds-pca963x.h
deleted file mode 100644
index 6091337ce4bfb844e42b898ba6498e0fb65c102f..0000000000000000000000000000000000000000
--- a/include/linux/platform_data/leds-pca963x.h
+++ /dev/null
@@ -1,35 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * PCA963X LED chip driver.
- *
- * Copyright 2012 bct electronic GmbH
- * Copyright 2013 Qtechnology A/S
- */
-
-#ifndef __LINUX_PCA963X_H
-#define __LINUX_PCA963X_H
-#include <linux/leds.h>
-
-enum pca963x_outdrv {
- PCA963X_OPEN_DRAIN,
- PCA963X_TOTEM_POLE, /* aka push-pull */
-};
-
-enum pca963x_blink_type {
- PCA963X_SW_BLINK,
- PCA963X_HW_BLINK,
-};
-
-enum pca963x_direction {
- PCA963X_NORMAL,
- PCA963X_INVERTED,
-};
-
-struct pca963x_platform_data {
- struct led_platform_data leds;
- enum pca963x_outdrv outdrv;
- enum pca963x_blink_type blink_type;
- enum pca963x_direction dir;
-};
-
-#endif /* __LINUX_PCA963X_H*/