Commit 75dcc7ef authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge tag 'spi-v4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull SPI updates from Mark Brown:
 "A quiet release for SPI, some fixes and small updates for individual
  drivers with one bigger change from Linus Walleij which coverts the
  bitbanging SPI driver to use the GPIO descriptor API from Linus
  Walleij.

  Since GPIO descriptors were used by platform data this means there's a
  few changes in arch/ making relevant updates for a few platforms and
  one misc driver that are affected"

* tag 'spi-v4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (24 commits)
  MAINTAINERS: update Andi's e-mail
  spi: spi-atmel: Use correct enum for DMA transfer direction
  spi: sh-msiof: Document R-Car M3-N support
  spi: sh-msiof: Use correct enum for DMA transfer direction
  spi: sprd: Add the support of restarting the system
  spi: sprd: Simplify the transfer function
  spi: Fix unregistration of controller with fixed SPI bus number
  spi: rspi: use correct enum for DMA transfer direction
  spi: jcore: disable ref_clk after getting its rate
  spi: bcm-qspi: fIX some error handling paths
  spi: pxa2xx: Disable runtime PM if controller registration fails
  spi: tegra20-slink: use true and false for boolean values
  spi: Fix scatterlist elements size in spi_map_buf
  spi: atmel: init FIFOs before spi enable
  spi: orion: Prepare space for per-child options
  spi: orion: Make the error message greppable
  spi: orion: Rework GPIO CS handling
  spi: bcm2835aux: Avoid 64-bit arithmetic in xfer len calc
  spi: spi-gpio: Augment device tree bindings
  spi: spi-gpio: Rewrite to use GPIO descriptors
  ...
parents b51c4354 0930437e
......@@ -18,6 +18,7 @@ Aleksey Gorelov <aleksey_gorelov@phoenix.com>
Aleksandar Markovic <aleksandar.markovic@mips.com> <aleksandar.markovic@imgtec.com>
Al Viro <viro@ftp.linux.org.uk>
Al Viro <viro@zenIV.linux.org.uk>
Andi Shyti <andi@etezian.org> <andi.shyti@samsung.com>
Andreas Herrmann <aherrman@de.ibm.com>
Andrey Ryabinin <ryabinin.a.a@gmail.com> <a.ryabinin@samsung.com>
Andrew Morton <akpm@linux-foundation.org>
......
......@@ -10,6 +10,7 @@ Required properties:
"renesas,msiof-r8a7794" (R-Car E2)
"renesas,msiof-r8a7795" (R-Car H3)
"renesas,msiof-r8a7796" (R-Car M3-W)
"renesas,msiof-r8a77965" (R-Car M3-N)
"renesas,msiof-sh73a0" (SH-Mobile AG5)
"renesas,sh-mobile-msiof" (generic SH-Mobile compatibile device)
"renesas,rcar-gen2-msiof" (generic R-Car Gen2 and RZ/G1 compatible device)
......
SPI-GPIO devicetree bindings
This represents a group of 3-n GPIO lines used for bit-banged SPI on dedicated
GPIO lines.
Required properties:
- compatible: should be set to "spi-gpio"
- #address-cells: should be set to <0x1>
- ranges
- gpio-sck: GPIO spec for the SCK line to use
- gpio-miso: GPIO spec for the MISO line to use
- gpio-mosi: GPIO spec for the MOSI line to use
- sck-gpios: GPIO spec for the SCK line to use
- miso-gpios: GPIO spec for the MISO line to use
- mosi-gpios: GPIO spec for the MOSI line to use
- cs-gpios: GPIOs to use for chipselect lines.
Not needed if num-chipselects = <0>.
- num-chipselects: Number of chipselect lines. Should be <0> if a single device
with no chip select is connected.
Deprecated bindings:
These legacy GPIO line bindings can alternatively be used to define the
GPIO lines used, they should not be used in new device trees.
- gpio-sck: GPIO spec for the SCK line to use
- gpio-miso: GPIO spec for the MISO line to use
- gpio-mosi: GPIO spec for the MOSI line to use
Example:
spi {
......@@ -20,9 +32,9 @@ Example:
#address-cells = <0x1>;
ranges;
gpio-sck = <&gpio 95 0>;
gpio-miso = <&gpio 98 0>;
gpio-mosi = <&gpio 97 0>;
sck-gpios = <&gpio 95 0>;
miso-gpios = <&gpio 98 0>;
mosi-gpios = <&gpio 97 0>;
cs-gpios = <&gpio 125 0>;
num-chipselects = <1>;
......
......@@ -12181,7 +12181,7 @@ F: Documentation/devicetree/bindings/clock/exynos*.txt
SAMSUNG SPI DRIVERS
M: Kukjin Kim <kgene@kernel.org>
M: Krzysztof Kozlowski <krzk@kernel.org>
M: Andi Shyti <andi.shyti@samsung.com>
M: Andi Shyti <andi@etezian.org>
L: linux-spi@vger.kernel.org
L: linux-samsung-soc@vger.kernel.org (moderated for non-subscribers)
S: Maintained
......
......@@ -23,6 +23,7 @@
#include <linux/clk.h>
#include <linux/gpio.h>
#include <linux/gpio/machine.h>
#include <linux/dm9000.h>
#include <linux/leds.h>
#include <linux/platform_data/rtc-v3020.h>
......@@ -343,9 +344,6 @@ static inline void cm_x300_init_bl(void) {}
#define LCD_SPI_BUS_NUM (1)
static struct spi_gpio_platform_data cm_x300_spi_gpio_pdata = {
.sck = GPIO_LCD_SCL,
.mosi = GPIO_LCD_DIN,
.miso = GPIO_LCD_DOUT,
.num_chipselect = 1,
};
......@@ -357,6 +355,21 @@ static struct platform_device cm_x300_spi_gpio = {
},
};
static struct gpiod_lookup_table cm_x300_spi_gpiod_table = {
.dev_id = "spi_gpio",
.table = {
GPIO_LOOKUP("gpio-pxa", GPIO_LCD_SCL,
"sck", GPIO_ACTIVE_HIGH),
GPIO_LOOKUP("gpio-pxa", GPIO_LCD_DIN,
"mosi", GPIO_ACTIVE_HIGH),
GPIO_LOOKUP("gpio-pxa", GPIO_LCD_DOUT,
"miso", GPIO_ACTIVE_HIGH),
GPIO_LOOKUP("gpio-pxa", GPIO_LCD_CS,
"cs", GPIO_ACTIVE_HIGH),
{ },
},
};
static struct tdo24m_platform_data cm_x300_tdo24m_pdata = {
.model = TDO35S,
};
......@@ -367,7 +380,6 @@ static struct spi_board_info cm_x300_spi_devices[] __initdata = {
.max_speed_hz = 1000000,
.bus_num = LCD_SPI_BUS_NUM,
.chip_select = 0,
.controller_data = (void *) GPIO_LCD_CS,
.platform_data = &cm_x300_tdo24m_pdata,
},
};
......@@ -376,6 +388,7 @@ static void __init cm_x300_init_spi(void)
{
spi_register_board_info(cm_x300_spi_devices,
ARRAY_SIZE(cm_x300_spi_devices));
gpiod_add_lookup_table(&cm_x300_spi_gpiod_table);
platform_device_register(&cm_x300_spi_gpio);
}
#else
......
......@@ -646,9 +646,6 @@ static void __init raumfeld_lcd_init(void)
*/
static struct spi_gpio_platform_data raumfeld_spi_platform_data = {
.sck = GPIO_SPI_CLK,
.mosi = GPIO_SPI_MOSI,
.miso = GPIO_SPI_MISO,
.num_chipselect = 3,
};
......@@ -660,6 +657,25 @@ static struct platform_device raumfeld_spi_device = {
}
};
static struct gpiod_lookup_table raumfeld_spi_gpiod_table = {
.dev_id = "spi_gpio",
.table = {
GPIO_LOOKUP("gpio-0", GPIO_SPI_CLK,
"sck", GPIO_ACTIVE_HIGH),
GPIO_LOOKUP("gpio-0", GPIO_SPI_MOSI,
"mosi", GPIO_ACTIVE_HIGH),
GPIO_LOOKUP("gpio-0", GPIO_SPI_MISO,
"miso", GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("gpio-0", GPIO_SPDIF_CS,
"cs", 0, GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("gpio-0", GPIO_ACCEL_CS,
"cs", 1, GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("gpio-0", GPIO_MCLK_DAC_CS,
"cs", 2, GPIO_ACTIVE_HIGH),
{ },
},
};
static struct lis3lv02d_platform_data lis3_pdata = {
.click_flags = LIS3_CLICK_SINGLE_X |
LIS3_CLICK_SINGLE_Y |
......@@ -680,7 +696,6 @@ static struct lis3lv02d_platform_data lis3_pdata = {
.max_speed_hz = 10000, \
.bus_num = 0, \
.chip_select = 0, \
.controller_data = (void *) GPIO_SPDIF_CS, \
}
#define SPI_LIS3 \
......@@ -689,7 +704,6 @@ static struct lis3lv02d_platform_data lis3_pdata = {
.max_speed_hz = 1000000, \
.bus_num = 0, \
.chip_select = 1, \
.controller_data = (void *) GPIO_ACCEL_CS, \
.platform_data = &lis3_pdata, \
.irq = PXA_GPIO_TO_IRQ(GPIO_ACCEL_IRQ), \
}
......@@ -700,7 +714,6 @@ static struct lis3lv02d_platform_data lis3_pdata = {
.max_speed_hz = 1000000, \
.bus_num = 0, \
.chip_select = 2, \
.controller_data = (void *) GPIO_MCLK_DAC_CS, \
}
static struct spi_board_info connector_spi_devices[] __initdata = {
......@@ -1066,6 +1079,7 @@ static void __init raumfeld_common_init(void)
else
gpio_direction_output(GPIO_SHUTDOWN_SUPPLY, 0);
gpiod_add_lookup_table(&raumfeld_spi_gpiod_table);
platform_add_devices(ARRAY_AND_SIZE(raumfeld_common_devices));
i2c_register_board_info(1, &raumfeld_pwri2c_board_info, 1);
}
......
......@@ -12,6 +12,7 @@
#include <linux/timer.h>
#include <linux/init.h>
#include <linux/gpio.h>
#include <linux/gpio/machine.h>
#include <linux/syscore_ops.h>
#include <linux/serial_core.h>
#include <linux/serial_s3c.h>
......@@ -388,32 +389,53 @@ static struct ili9320_platdata jive_lcm_config = {
/* LCD SPI support */
static struct spi_gpio_platform_data jive_lcd_spi = {
.sck = S3C2410_GPG(8),
.mosi = S3C2410_GPB(8),
.miso = SPI_GPIO_NO_MISO,
.num_chipselect = 1,
};
static struct platform_device jive_device_lcdspi = {
.name = "spi-gpio",
.name = "spi_gpio",
.id = 1,
.dev.platform_data = &jive_lcd_spi,
};
static struct gpiod_lookup_table jive_lcdspi_gpiod_table = {
.dev_id = "spi_gpio",
.table = {
GPIO_LOOKUP("GPIOG", 8,
"sck", GPIO_ACTIVE_HIGH),
GPIO_LOOKUP("GPIOB", 8,
"mosi", GPIO_ACTIVE_HIGH),
GPIO_LOOKUP("GPIOB", 7,
"cs", GPIO_ACTIVE_HIGH),
{ },
},
};
/* WM8750 audio code SPI definition */
static struct spi_gpio_platform_data jive_wm8750_spi = {
.sck = S3C2410_GPB(4),
.mosi = S3C2410_GPB(9),
.miso = SPI_GPIO_NO_MISO,
.num_chipselect = 1,
};
static struct platform_device jive_device_wm8750 = {
.name = "spi-gpio",
.name = "spi_gpio",
.id = 2,
.dev.platform_data = &jive_wm8750_spi,
};
static struct gpiod_lookup_table jive_wm8750_gpiod_table = {
.dev_id = "spi_gpio",
.table = {
GPIO_LOOKUP("GPIOB", 4,
"gpio-sck", GPIO_ACTIVE_HIGH),
GPIO_LOOKUP("GPIOB", 9,
"gpio-mosi", GPIO_ACTIVE_HIGH),
GPIO_LOOKUP("GPIOH", 10,
"cs", GPIO_ACTIVE_HIGH),
{ },
},
};
/* JIVE SPI devices. */
static struct spi_board_info __initdata jive_spi_devs[] = {
......@@ -424,14 +446,12 @@ static struct spi_board_info __initdata jive_spi_devs[] = {
.mode = SPI_MODE_3, /* CPOL=1, CPHA=1 */
.max_speed_hz = 100000,
.platform_data = &jive_lcm_config,
.controller_data = (void *)S3C2410_GPB(7),
}, {
.modalias = "WM8750",
.bus_num = 2,
.chip_select = 0,
.mode = SPI_MODE_0, /* CPOL=0, CPHA=0 */
.max_speed_hz = 100000,
.controller_data = (void *)S3C2410_GPH(10),
},
};
......@@ -619,25 +639,12 @@ static void __init jive_machine_init(void)
/** TODO - check that this is after the cmdline option! */
s3c_nand_set_platdata(&jive_nand_info);
/* initialise the spi */
gpio_request(S3C2410_GPG(13), "lcm reset");
gpio_direction_output(S3C2410_GPG(13), 0);
gpio_request(S3C2410_GPB(7), "jive spi");
gpio_direction_output(S3C2410_GPB(7), 1);
gpio_request_one(S3C2410_GPB(6), GPIOF_OUT_INIT_LOW, NULL);
gpio_free(S3C2410_GPB(6));
gpio_request_one(S3C2410_GPG(8), GPIOF_OUT_INIT_HIGH, NULL);
gpio_free(S3C2410_GPG(8));
/* initialise the WM8750 spi */
gpio_request(S3C2410_GPH(10), "jive wm8750 spi");
gpio_direction_output(S3C2410_GPH(10), 1);
/* Turn off suspend on both USB ports, and switch the
* selectable USB port to USB device mode. */
......@@ -655,6 +662,8 @@ static void __init jive_machine_init(void)
pm_power_off = jive_power_off;
gpiod_add_lookup_table(&jive_lcdspi_gpiod_table);
gpiod_add_lookup_table(&jive_wm8750_gpiod_table);
platform_add_devices(jive_devices, ARRAY_SIZE(jive_devices));
}
......
......@@ -11,6 +11,7 @@
#include <linux/timer.h>
#include <linux/init.h>
#include <linux/gpio.h>
#include <linux/gpio/machine.h>
#include <linux/device.h>
#include <linux/platform_device.h>
#include <linux/serial_core.h>
......@@ -194,17 +195,30 @@ static struct platform_device qt2410_led = {
/* SPI */
static struct spi_gpio_platform_data spi_gpio_cfg = {
.sck = S3C2410_GPG(7),
.mosi = S3C2410_GPG(6),
.miso = S3C2410_GPG(5),
.num_chipselect = 1,
};
static struct platform_device qt2410_spi = {
.name = "spi-gpio",
.name = "spi_gpio",
.id = 1,
.dev.platform_data = &spi_gpio_cfg,
};
static struct gpiod_lookup_table qt2410_spi_gpiod_table = {
.dev_id = "spi_gpio",
.table = {
GPIO_LOOKUP("GPIOG", 7,
"sck", GPIO_ACTIVE_HIGH),
GPIO_LOOKUP("GPIOG", 6,
"mosi", GPIO_ACTIVE_HIGH),
GPIO_LOOKUP("GPIOG", 5,
"miso", GPIO_ACTIVE_HIGH),
GPIO_LOOKUP("GPIOB", 5,
"cs", GPIO_ACTIVE_HIGH),
{ },
},
};
/* Board devices */
static struct platform_device *qt2410_devices[] __initdata = {
......@@ -323,9 +337,7 @@ static void __init qt2410_machine_init(void)
s3c24xx_udc_set_platdata(&qt2410_udc_cfg);
s3c_i2c0_set_platdata(NULL);
WARN_ON(gpio_request(S3C2410_GPB(5), "spi cs"));
gpio_direction_output(S3C2410_GPB(5), 1);
gpiod_add_lookup_table(&qt2410_spi_gpiod_table);
platform_add_devices(qt2410_devices, ARRAY_SIZE(qt2410_devices));
s3c_pm_init();
}
......
......@@ -206,17 +206,30 @@ static int __init smartq_lcd_setup_gpio(void)
/* GPM0 -> CS */
static struct spi_gpio_platform_data smartq_lcd_control = {
.sck = S3C64XX_GPM(1),
.mosi = S3C64XX_GPM(2),
.miso = S3C64XX_GPM(2),
.num_chipselect = 1,
};
static struct platform_device smartq_lcd_control_device = {
.name = "spi-gpio",
.name = "spi_gpio",
.id = 1,
.dev.platform_data = &smartq_lcd_control,
};
static struct gpiod_lookup_table smartq_lcd_control_gpiod_table = {
.dev_id = "spi_gpio",
.table = {
GPIO_LOOKUP("GPIOM", 1,
"sck", GPIO_ACTIVE_HIGH),
GPIO_LOOKUP("GPIOM", 2,
"mosi", GPIO_ACTIVE_HIGH),
GPIO_LOOKUP("GPIOM", 3,
"miso", GPIO_ACTIVE_HIGH),
GPIO_LOOKUP("GPIOM", 0,
"cs", GPIO_ACTIVE_HIGH),
{ },
},
};
static void smartq_lcd_power_set(struct plat_lcd_data *pd, unsigned int power)
{
gpio_direction_output(S3C64XX_GPM(3), power);
......@@ -404,6 +417,7 @@ void __init smartq_machine_init(void)
WARN_ON(smartq_wifi_init());
pwm_add_table(smartq_pwm_lookup, ARRAY_SIZE(smartq_pwm_lookup));
gpiod_add_lookup_table(&smartq_lcd_control_gpiod_table);
platform_add_devices(smartq_devices, ARRAY_SIZE(smartq_devices));
gpiod_add_lookup_table(&smartq_audio_gpios);
......
......@@ -22,6 +22,7 @@
#include <linux/clk.h>
#include <linux/dma-mapping.h>
#include <linux/gpio.h>
#include <linux/gpio/machine.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/leds.h>
......@@ -447,9 +448,6 @@ static struct ads7846_platform_data db1100_touch_pd = {
};
static struct spi_gpio_platform_data db1100_spictl_pd = {
.sck = 209,
.mosi = 208,
.miso = 207,
.num_chipselect = 1,
};
......@@ -462,7 +460,6 @@ static struct spi_board_info db1100_spi_info[] __initdata = {
.mode = 0,
.irq = AU1100_GPIO21_INT,
.platform_data = &db1100_touch_pd,
.controller_data = (void *)210, /* for spi_gpio: CS# GPIO210 */
},
};
......@@ -474,6 +471,24 @@ static struct platform_device db1100_spi_dev = {
},
};
/*
* Alchemy GPIO 2 has its base at 200 so the GPIO lines
* 207 thru 210 are GPIOs at offset 7 thru 10 at this chip.
*/
static struct gpiod_lookup_table db1100_spi_gpiod_table = {
.dev_id = "spi_gpio",
.table = {
GPIO_LOOKUP("alchemy-gpio2", 9,
"sck", GPIO_ACTIVE_HIGH),
GPIO_LOOKUP("alchemy-gpio2", 8,
"mosi", GPIO_ACTIVE_HIGH),
GPIO_LOOKUP("alchemy-gpio2", 7,
"miso", GPIO_ACTIVE_HIGH),
GPIO_LOOKUP("alchemy-gpio2", 10,
"cs", GPIO_ACTIVE_HIGH),
{ },
},
};
static struct platform_device *db1x00_devs[] = {
&db1x00_codec_dev,
......@@ -541,6 +556,7 @@ int __init db1000_dev_setup(void)
clk_put(p);
platform_add_devices(db1100_devs, ARRAY_SIZE(db1100_devs));
gpiod_add_lookup_table(&db1100_spi_gpiod_table);
platform_device_register(&db1100_spi_dev);
} else if (board == BCSR_WHOAMI_DB1000) {
c0 = AU1000_GPIO2_INT;
......
......@@ -313,25 +313,34 @@ static struct jz4740_fb_platform_data qi_lb60_fb_pdata = {
.pixclk_falling_edge = 1,
};
struct spi_gpio_platform_data spigpio_platform_data = {
.sck = JZ_GPIO_PORTC(23),
.mosi = JZ_GPIO_PORTC(22),
.miso = -1,
struct spi_gpio_platform_data qi_lb60_spigpio_platform_data = {
.num_chipselect = 1,
};
static struct platform_device spigpio_device = {
static struct platform_device qi_lb60_spigpio_device = {
.name = "spi_gpio",
.id = 1,
.dev = {
.platform_data = &spigpio_platform_data,
.platform_data = &qi_lb60_spigpio_platform_data,
},
};
static struct gpiod_lookup_table qi_lb60_spigpio_gpio_table = {
.dev_id = "spi_gpio",
.table = {
GPIO_LOOKUP("GPIOC", 23,
"sck", GPIO_ACTIVE_HIGH),
GPIO_LOOKUP("GPIOC", 22,
"mosi", GPIO_ACTIVE_HIGH),
GPIO_LOOKUP("GPIOC", 21,
"cs", GPIO_ACTIVE_HIGH),
{ },
},
};
static struct spi_board_info qi_lb60_spi_board_info[] = {
{
.modalias = "ili8960",
.controller_data = (void *)JZ_GPIO_PORTC(21),
.chip_select = 0,
.bus_num = 1,
.max_speed_hz = 30 * 1000,
......@@ -435,7 +444,7 @@ static struct platform_device *jz_platform_devices[] __initdata = {
&jz4740_mmc_device,
&jz4740_nand_device,
&qi_lb60_keypad,
&spigpio_device,
&qi_lb60_spigpio_device,
&jz4740_framebuffer_device,
&jz4740_pcm_device,
&jz4740_i2s_device,
......@@ -489,6 +498,7 @@ static int __init qi_lb60_init_platform_devices(void)
gpiod_add_lookup_table(&qi_lb60_audio_gpio_table);
gpiod_add_lookup_table(&qi_lb60_nand_gpio_table);
gpiod_add_lookup_table(&qi_lb60_spigpio_gpio_table);
spi_register_board_info(qi_lb60_spi_board_info,
ARRAY_SIZE(qi_lb60_spi_board_info));
......
......@@ -7,9 +7,18 @@
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* FIXME: this driver is used on a device-tree probed platform: it
* should be defined as a bit-banged SPI device and probed from the device
* tree and not like this with static grabbing of a few numbered GPIO
* lines at random.
*
* Add proper SPI and EEPROM in arch/powerpc/boot/dts/digsy_mtc.dts
* and delete this driver.
*/
#include <linux/gpio.h>
#include <linux/gpio/machine.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/spi/spi.h>
......@@ -42,9 +51,6 @@ struct eeprom_93xx46_platform_data digsy_mtc_eeprom_data = {
};
static struct spi_gpio_platform_data eeprom_spi_gpio_data = {
.sck = GPIO_EEPROM_CLK,
.mosi = GPIO_EEPROM_DI,
.miso = GPIO_EEPROM_DO,
.num_chipselect = 1,
};
......@@ -56,6 +62,21 @@ static struct platform_device digsy_mtc_eeprom = {
},
};
static struct gpiod_lookup_table eeprom_spi_gpiod_table = {
.dev_id = "spi_gpio",
.table = {
GPIO_LOOKUP("gpio@b00", GPIO_EEPROM_CLK,
"sck", GPIO_ACTIVE_HIGH),
GPIO_LOOKUP("gpio@b00", GPIO_EEPROM_DI,
"mosi", GPIO_ACTIVE_HIGH),
GPIO_LOOKUP("gpio@b00", GPIO_EEPROM_DO,
"miso", GPIO_ACTIVE_HIGH),
GPIO_LOOKUP("gpio@b00", GPIO_EEPROM_CS,
"cs", GPIO_ACTIVE_HIGH),
{ },
},
};
static struct spi_board_info digsy_mtc_eeprom_info[] __initdata = {
{
.modalias = "93xx46",
......@@ -63,7 +84,6 @@ static struct spi_board_info digsy_mtc_eeprom_info[] __initdata = {
.bus_num = EE_SPI_BUS_NUM,
.chip_select = 0,
.mode = SPI_MODE_0,
.controller_data = (void *)GPIO_EEPROM_CS,
.platform_data = &digsy_mtc_eeprom_data,
},
};
......@@ -78,6 +98,7 @@ static int __init digsy_mtc_eeprom_devices_init(void)
pr_err("can't request gpio %d\n", GPIO_EEPROM_OE);
return ret;
}
gpiod_add_lookup_table(&eeprom_spi_gpiod_table);
spi_register_board_info(digsy_mtc_eeprom_info,
ARRAY_SIZE(digsy_mtc_eeprom_info));
return platform_device_register(&digsy_mtc_eeprom);
......
......@@ -768,14 +768,14 @@ static int atmel_spi_next_xfer_dma_submit(struct spi_master *master,
rxdesc = dmaengine_prep_slave_single(rxchan,
as->dma_addr_rx_bbuf,
xfer->len,
DMA_FROM_DEVICE,
DMA_DEV_TO_MEM,
DMA_PREP_INTERRUPT |
DMA_CTRL_ACK);
} else {
rxdesc = dmaengine_prep_slave_sg(rxchan,
xfer->rx_sg.sgl,
xfer->rx_sg.nents,
DMA_FROM_DEVICE,
DMA_DEV_TO_MEM,
DMA_PREP_INTERRUPT |
DMA_CTRL_ACK);
}
......@@ -787,14 +787,14 @@ static int atmel_spi_next_xfer_dma_submit(struct spi_master *master,
memcpy(as->addr_tx_bbuf, xfer->tx_buf, xfer->len);
txdesc = dmaengine_prep_slave_single(txchan,
as->dma_addr_tx_bbuf,
xfer->len, DMA_TO_DEVICE,
xfer->len, DMA_MEM_TO_DEV,
DMA_PREP_INTERRUPT |
DMA_CTRL_ACK);
} else {
txdesc = dmaengine_prep_slave_sg(txchan,