Commit 25a8cc5f authored by Guido Gunther's avatar Guido Gunther
Browse files

Merge branch 'devkit-panel-upstream' into 'imx8-4.18-wip'

Use the upstreamed panel driver

See merge request !23
parents ee84b30c c3a2ed8f
Pipeline #5952 passed with stage
in 40 minutes and 33 seconds
Rocktech jh057n00900 5.5" 720x1440 TFT LCD panel
Required properties:
- compatible: should be "rocktech,jh057n00900"
- reg: DSI virtual channel of the peripheral
- reset-gpios: panel reset gpio
- backlight: phandle of the backlight device attached to the panel
Example:
&mipi_dsi {
panel@0 {
compatible = "rocktech,jh057n00900";
reg = <0>;
backlight = <&backlight>;
reset-gpios = <&gpio3 13 GPIO_ACTIVE_LOW>;
};
};
......@@ -310,6 +310,7 @@ ricoh Ricoh Co. Ltd.
rikomagic Rikomagic Tech Corp. Ltd
riscv RISC-V Foundation
rockchip Fuzhou Rockchip Electronics Co., Ltd
rocktech ROCKTECH DISPLAYS LIMITED
rohm ROHM Semiconductor Co., Ltd
roofull Shenzhen Roofull Technology Co, Ltd
samsung Samsung Semiconductor
......
......@@ -4587,6 +4587,12 @@ S: Orphan / Obsolete
F: drivers/gpu/drm/r128/
F: include/uapi/drm/r128_drm.h
DRM DRIVER FOR ROCKTECH JH057N00900 PANELS
M: Guido Günther <agx@sigxcpu.org>
S: Maintained
F: drivers/gpu/drm/panel/panel-rocktech-jh057n00900.c
F: Documentation/devicetree/bindings/display/panel/rocktech,jh057n00900.txt
DRM DRIVER FOR SAVAGE VIDEO CARDS
S: Orphan / Obsolete
F: drivers/gpu/drm/savage/
......
......@@ -372,8 +372,8 @@ CONFIG_DRM_I2C_SIL164=m
CONFIG_DRM_I2C_NXP_TDA9950=m
CONFIG_DRM_PANEL_LVDS=m
CONFIG_DRM_PANEL_SIMPLE=m
CONFIG_DRM_PANEL_ROCKTECH_JH057N00900=y
CONFIG_DRM_PANEL_FRD55=y
CONFIG_DRM_PANEL_ROCKCHIP_JH057N00900=y
CONFIG_DRM_LVDS_ENCODER=m
CONFIG_DRM_I2C_ADV7511=y
CONFIG_DRM_DW_HDMI_CEC=y
......
......@@ -117,6 +117,19 @@ config DRM_PANEL_RAYDIUM_RM68200
Say Y here if you want to enable support for Raydium RM68200
720x1280 DSI video mode panel.
config DRM_PANEL_ROCKTECH_JH057N00900
tristate "Rocktech JH057N00900 MIPI touchscreen panel"
depends on OF
depends on DRM_MIPI_DSI
depends on BACKLIGHT_CLASS_DEVICE
help
Say Y here if you want to enable support for Rocktech JH057N00900
MIPI DSI panel as e.g. used in the Librem 5 devkit. It has a
resolution of 720x1440 pixels, a built in backlight and touch
controller.
Touch input support is provided by the goodix driver and needs to be
selected separately.
config DRM_PANEL_SAMSUNG_S6E3HA2
tristate "Samsung S6E3HA2 DSI video mode panel"
depends on OF
......@@ -186,13 +199,4 @@ config DRM_PANEL_FRD55
Say Y here if you want to enable support for Emcraft FRD55
FHD MIPI DSI panel.
config DRM_PANEL_ROCKCHIP_JH057N00900
tristate "Rockchip JH057N00900 MIPI Panel"
depends on OF
depends on DRM_MIPI_DSI
depends on BACKLIGHT_CLASS_DEVICE
help
Say Y here if you want to enable support for Rockchip JH057N00900IPI
MIPI DSI panel as e.g. used in the Librem-5 devkit.
endmenu
......@@ -10,6 +10,7 @@ obj-$(CONFIG_DRM_PANEL_ORISETECH_OTM8009A) += panel-orisetech-otm8009a.o
obj-$(CONFIG_DRM_PANEL_PANASONIC_VVX10F034N00) += panel-panasonic-vvx10f034n00.o
obj-$(CONFIG_DRM_PANEL_RASPBERRYPI_TOUCHSCREEN) += panel-raspberrypi-touchscreen.o
obj-$(CONFIG_DRM_PANEL_RAYDIUM_RM68200) += panel-raydium-rm68200.o
obj-$(CONFIG_DRM_PANEL_ROCKTECH_JH057N00900) += panel-rocktech-jh057n00900.o
obj-$(CONFIG_DRM_PANEL_SAMSUNG_LD9040) += panel-samsung-ld9040.o
obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E3HA2) += panel-samsung-s6e3ha2.o
obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E63J0X03) += panel-samsung-s6e63j0x03.o
......@@ -19,4 +20,3 @@ obj-$(CONFIG_DRM_PANEL_SHARP_LQ101R1SX01) += panel-sharp-lq101r1sx01.o
obj-$(CONFIG_DRM_PANEL_SHARP_LS043T1LE01) += panel-sharp-ls043t1le01.o
obj-$(CONFIG_DRM_PANEL_SITRONIX_ST7789V) += panel-sitronix-st7789v.o
obj-$(CONFIG_DRM_PANEL_FRD55) += panel-frd55.o
obj-$(CONFIG_DRM_PANEL_ROCKCHIP_JH057N00900) += panel-jh057n00900.o
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) Purism SPC 2018
* Rockteck jh057n00900 5.5" MIPI-DSI panel driver
*
* Authors: Guido Günther <agx@sigxcpu.org>
*
* SPDX-License-Identifier: GPL-2.0
* Copyright (C) Purism SPC 2019
*/
#include <drm/drmP.h>
#include <drm/drm_mipi_dsi.h>
#include <drm/drm_modes.h>
#include <drm/drm_panel.h>
#include <drm/drm_print.h>
#include <linux/backlight.h>
#include <linux/debugfs.h>
#include <linux/delay.h>
#include <linux/gpio/consumer.h>
#include <video/mipi_display.h>
#include <linux/media-bus-format.h>
#include <linux/module.h>
#include <video/display_timing.h>
#include <linux/debugfs.h>
#include <video/mipi_display.h>
#define DRV_NAME "jh057n00900"
/* The Rockteck jh057n00900 uses a Sitronix ST7703 */
#define ST7703_DCS_CMD_ALLPOFF 0x22 /* all pixels off */
#define ST7703_DCS_CMD_ALLPON 0x23 /* all pixels on */
/* Manufacturer Command Set */
#define ST7703_CMD_SETDISP 0xB2 /* display resolution */
#define ST7703_CMD_SETRGBIF 0xB3 /* porch adjustment */
#define ST7703_CMD_SETCYC 0xB4 /* display inversion type */
#define ST7703_CMD_SETBGP 0xB5 /* Reference Voltage */
#define ST7703_CMD_SETVCOM 0xB6 /* VCom */
#define ST7703_CMD_SETOTP 0xB7
#define ST7703_CMD_SETPOWER_EXT 0xB8
#define ST7703_CMD_SETEXTC 0xB9
#define ST7703_CMD_SETMIPI 0xBA
#define ST7703_CMD_SETVDC 0xBC
#define ST7703_CMD_SETSCR 0xC0
#define ST7703_CMD_SETPOWER 0xC1
#define ST7703_CMD_SETPANEL 0xCC
#define ST7703_CMD_SETGAMMA 0xE0
#define ST7703_CMD_SETEQ 0xE3
#define ST7703_CMD_SETGIP1 0xE9
#define ST7703_CMD_SETGIP2 0xEA
#define DRV_NAME "panel-rocktech-jh057n00900"
/* Manufacturer specific Commands send via DSI */
#define ST7703_CMD_ALL_PIXEL_OFF 0x22
#define ST7703_CMD_ALL_PIXEL_ON 0x23
#define ST7703_CMD_SETDISP 0xB2
#define ST7703_CMD_SETRGBIF 0xB3
#define ST7703_CMD_SETCYC 0xB4
#define ST7703_CMD_SETBGP 0xB5
#define ST7703_CMD_SETVCOM 0xB6
#define ST7703_CMD_SETOTP 0xB7
#define ST7703_CMD_SETPOWER_EXT 0xB8
#define ST7703_CMD_SETEXTC 0xB9
#define ST7703_CMD_SETMIPI 0xBA
#define ST7703_CMD_SETVDC 0xBC
#define ST7703_CMD_SETSCR 0xC0
#define ST7703_CMD_SETPOWER 0xC1
#define ST7703_CMD_SETPANEL 0xCC
#define ST7703_CMD_SETGAMMA 0xE0
#define ST7703_CMD_SETEQ 0xE3
#define ST7703_CMD_SETGIP1 0xE9
#define ST7703_CMD_SETGIP2 0xEA
struct jh057n {
struct device *dev;
......@@ -45,46 +47,22 @@ struct jh057n {
struct gpio_desc *reset_gpio;
struct backlight_device *backlight;
bool prepared;
bool enabled;
struct dentry *debugfs;
};
static const struct drm_display_mode default_mode = {
.hdisplay = 720,
.hsync_start = 720 + 90 /* front porch */,
.hsync_end = 720 + 90 + 20 /* sync_len */,
.htotal = 720 + 90 + 20 + 20 /* back porch */,
.vdisplay = 1440,
.vsync_start = 1440 + 20 /* front porch */,
.vsync_end = 1440 + 20 + 4 /* sync_len */,
.vtotal = 1440 + 20 + 4 + 12 /* back porch */,
.vrefresh = 60,
.clock = 75276, /* kHz */
.flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC,
.width_mm = 65,
.height_mm = 130,
};
static inline struct jh057n *panel_to_jh057n(struct drm_panel *panel)
{
return container_of(panel, struct jh057n, panel);
}
static void jh057n_dsi_generic_write_buf(struct jh057n *ctx, const void *data,
size_t len)
{
struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
if (mipi_dsi_generic_write(dsi, data, len) < 0)
DRM_DEV_ERROR(ctx->dev, "mipi dsi generic write buffer failed\n");
}
#define dsi_generic_write_seq(ctx, seq...) \
({ \
static const u8 d[] = { seq }; \
jh057n_dsi_generic_write_buf(ctx, d, ARRAY_SIZE(d)); \
})
#define dsi_generic_write_seq(dsi, seq...) do { \
static const u8 d[] = { seq }; \
int ret; \
ret = mipi_dsi_generic_write(dsi, d, ARRAY_SIZE(d)); \
if (ret < 0) \
return ret; \
} while (0)
static int jh057n_init_sequence(struct jh057n *ctx)
{
......@@ -92,27 +70,32 @@ static int jh057n_init_sequence(struct jh057n *ctx)
struct device *dev = ctx->dev;
int ret;
dsi_generic_write_seq(ctx, ST7703_CMD_SETEXTC, /* 3 */
/*
* Init sequence was supplied by the panel vendor. Most of the commands
* resemble the ST7703 but the number of parameters often don't match
* so it's likely a clone.
*/
dsi_generic_write_seq(dsi, ST7703_CMD_SETEXTC,
0xF1, 0x12, 0x83);
dsi_generic_write_seq(ctx, ST7703_CMD_SETRGBIF, /* 10 */
dsi_generic_write_seq(dsi, ST7703_CMD_SETRGBIF,
0x10, 0x10, 0x05, 0x05, 0x03, 0xFF, 0x00, 0x00,
0x00, 0x00);
dsi_generic_write_seq(ctx, ST7703_CMD_SETSCR, /* 9 */
dsi_generic_write_seq(dsi, ST7703_CMD_SETSCR,
0x73, 0x73, 0x50, 0x50, 0x00, 0x00, 0x08, 0x70,
0x00);
dsi_generic_write_seq(ctx, ST7703_CMD_SETVDC, 0x4E);
dsi_generic_write_seq(ctx, ST7703_CMD_SETPANEL, 0x0B);
dsi_generic_write_seq(ctx, ST7703_CMD_SETCYC, 0x80);
dsi_generic_write_seq(ctx, ST7703_CMD_SETDISP, 0xF0, 0x12, 0x30);
dsi_generic_write_seq(ctx, ST7703_CMD_SETEQ, /* 14 */
dsi_generic_write_seq(dsi, ST7703_CMD_SETVDC, 0x4E);
dsi_generic_write_seq(dsi, ST7703_CMD_SETPANEL, 0x0B);
dsi_generic_write_seq(dsi, ST7703_CMD_SETCYC, 0x80);
dsi_generic_write_seq(dsi, ST7703_CMD_SETDISP, 0xF0, 0x12, 0x30);
dsi_generic_write_seq(dsi, ST7703_CMD_SETEQ,
0x07, 0x07, 0x0B, 0x0B, 0x03, 0x0B, 0x00, 0x00,
0x00, 0x00, 0xFF, 0x00, 0xC0, 0x10);
dsi_generic_write_seq(ctx, ST7703_CMD_SETBGP, 0x08, 0x08);
dsi_generic_write_seq(dsi, ST7703_CMD_SETBGP, 0x08, 0x08);
msleep(20);
mdelay(100);
dsi_generic_write_seq(ctx, ST7703_CMD_SETVCOM, 0x3F, 0x3F);
dsi_generic_write_seq(ctx, 0xBF, 0x02, 0x11, 0x00);
dsi_generic_write_seq(ctx, ST7703_CMD_SETGIP1, /* 63 */
dsi_generic_write_seq(dsi, ST7703_CMD_SETVCOM, 0x3F, 0x3F);
dsi_generic_write_seq(dsi, 0xBF, 0x02, 0x11, 0x00);
dsi_generic_write_seq(dsi, ST7703_CMD_SETGIP1,
0x82, 0x10, 0x06, 0x05, 0x9E, 0x0A, 0xA5, 0x12,
0x31, 0x23, 0x37, 0x83, 0x04, 0xBC, 0x27, 0x38,
0x0C, 0x00, 0x03, 0x00, 0x00, 0x00, 0x0C, 0x00,
......@@ -121,7 +104,7 @@ static int jh057n_init_sequence(struct jh057n *ctx)
0x64, 0x20, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88,
0x02, 0x88, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00);
dsi_generic_write_seq(ctx, ST7703_CMD_SETGIP2, /* 61 */
dsi_generic_write_seq(dsi, ST7703_CMD_SETGIP2,
0x02, 0x21, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x02, 0x46, 0x02, 0x88,
0x88, 0x88, 0x88, 0x88, 0x88, 0x64, 0x88, 0x13,
......@@ -130,70 +113,52 @@ static int jh057n_init_sequence(struct jh057n *ctx)
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x0A,
0xA5, 0x00, 0x00, 0x00, 0x00);
dsi_generic_write_seq(ctx, ST7703_CMD_SETGAMMA, /* 34 */
dsi_generic_write_seq(dsi, ST7703_CMD_SETGAMMA,
0x00, 0x09, 0x0E, 0x29, 0x2D, 0x3C, 0x41, 0x37,
0x07, 0x0B, 0x0D, 0x10, 0x11, 0x0F, 0x10, 0x11,
0x18, 0x00, 0x09, 0x0E, 0x29, 0x2D, 0x3C, 0x41,
0x37, 0x07, 0x0B, 0x0D, 0x10, 0x11, 0x0F, 0x10,
0x11, 0x18);
msleep(78); /* docs say nothing here */
msleep(20);
ret = mipi_dsi_dcs_exit_sleep_mode(dsi);
if (ret < 0) {
DRM_DEV_ERROR(dev, "Failed to exit sleep mode");
return ret;
}
msleep(150); /* docs say 120ms */
/* Panel is operational 120 msec after reset */
msleep(60);
ret = mipi_dsi_dcs_set_display_on(dsi);
if (ret)
return ret;
DRM_DEV_DEBUG_DRIVER (dev, "Panel init sequence done");
DRM_DEV_DEBUG_DRIVER(dev, "Panel init sequence done");
return 0;
}
static int jh057n_disable(struct drm_panel *panel)
static int jh057n_enable(struct drm_panel *panel)
{
struct jh057n *ctx = panel_to_jh057n(panel);
struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
int ret;
if (!ctx->enabled)
return 0;
ret = mipi_dsi_dcs_set_display_off(dsi);
if (ret)
return ret;
if (ctx->backlight) {
ctx->backlight->props.power = FB_BLANK_POWERDOWN;
ctx->backlight->props.state |= BL_CORE_FBBLANK;
backlight_update_status(ctx->backlight);
}
msleep(20);
return backlight_enable(ctx->backlight);
}
ctx->enabled = false;
static int jh057n_disable(struct drm_panel *panel)
{
struct jh057n *ctx = panel_to_jh057n(panel);
return 0;
return backlight_disable(ctx->backlight);
}
static int jh057n_unprepare(struct drm_panel *panel)
{
struct jh057n *ctx = panel_to_jh057n(panel);
struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
if (!ctx->prepared)
return 0;
if (ctx->reset_gpio) {
gpiod_set_value_cansleep(ctx->reset_gpio, 0);
gpiod_set_value_cansleep(ctx->reset_gpio, 1);
usleep_range(20, 40); /* docs say 20 usec */
gpiod_set_value_cansleep(ctx->reset_gpio, 0);
msleep(140); /* docs say 120 msec */
} else {
DRM_DEV_DEBUG_DRIVER(ctx->dev, "No reset gpio found");
return -EINVAL;
}
mipi_dsi_dcs_set_display_off(dsi);
ctx->prepared = false;
return 0;
......@@ -207,20 +172,15 @@ static int jh057n_prepare(struct drm_panel *panel)
if (ctx->prepared)
return 0;
if (ctx->reset_gpio) {
DRM_DEV_DEBUG_DRIVER(ctx->dev, "Resetting the panel.");
gpiod_set_value_cansleep(ctx->reset_gpio, 1);
usleep_range(20, 40); /* docs say 20 usec */
gpiod_set_value_cansleep(ctx->reset_gpio, 0);
msleep(140); /* docs say 120 msec */
} else {
DRM_DEV_DEBUG_DRIVER(ctx->dev, "No reset gpio found");
return -EINVAL;
}
DRM_DEV_DEBUG_DRIVER(ctx->dev, "Resetting the panel.");
gpiod_set_value_cansleep(ctx->reset_gpio, 1);
usleep_range(20, 40);
gpiod_set_value_cansleep(ctx->reset_gpio, 0);
msleep(20);
ret = jh057n_init_sequence(ctx);
if (ret) {
DRM_DEV_ERROR(ctx->dev, "Panel init sequence failed");
if (ret < 0) {
DRM_DEV_ERROR(ctx->dev, "Panel init sequence failed: %d", ret);
return ret;
}
......@@ -229,54 +189,40 @@ static int jh057n_prepare(struct drm_panel *panel)
return 0;
}
static int jh057n_enable(struct drm_panel *panel)
{
struct jh057n *ctx = panel_to_jh057n(panel);
struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
int ret;
ret = mipi_dsi_dcs_set_display_on(dsi);
if (ret)
return ret;
if (ctx->backlight) {
ctx->backlight->props.state &= ~BL_CORE_FBBLANK;
ctx->backlight->props.power = FB_BLANK_UNBLANK;
backlight_update_status(ctx->backlight);
}
msleep(20);
ctx->enabled = true;
return 0;
}
static const struct drm_display_mode default_mode = {
.hdisplay = 720,
.hsync_start = 720 + 90,
.hsync_end = 720 + 90 + 20,
.htotal = 720 + 90 + 20 + 20,
.vdisplay = 1440,
.vsync_start = 1440 + 20,
.vsync_end = 1440 + 20 + 4,
.vtotal = 1440 + 20 + 4 + 12,
.vrefresh = 60,
.clock = 75276,
.flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC,
.width_mm = 65,
.height_mm = 130,
};
static int jh057n_get_modes(struct drm_panel *panel)
{
struct jh057n *ctx = panel_to_jh057n(panel);
struct drm_display_mode *mode;
u32 bus_format = MEDIA_BUS_FMT_RGB888_1X24;
int ret;
mode = drm_mode_duplicate(panel->drm, &default_mode);
if (!mode) {
DRM_ERROR("failed to add mode %ux%ux@%u",
default_mode.hdisplay, default_mode.vdisplay,
default_mode.vrefresh);
DRM_DEV_ERROR(ctx->dev, "Failed to add mode %ux%u@%u",
default_mode.hdisplay, default_mode.vdisplay,
default_mode.vrefresh);
return -ENOMEM;
}
drm_mode_set_name(mode);
mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
panel->connector->display_info.width_mm = mode->width_mm;
panel->connector->display_info.height_mm = mode->height_mm;
ret = drm_display_info_set_bus_formats(&panel->connector->display_info,
&bus_format, 1);
if (ret)
return ret;
drm_mode_probed_add(panel->connector, mode);
return 1;
......@@ -286,30 +232,31 @@ static const struct drm_panel_funcs jh057n_drm_funcs = {
.disable = jh057n_disable,
.unprepare = jh057n_unprepare,
.prepare = jh057n_prepare,
.enable = jh057n_enable,
.enable = jh057n_enable,
.get_modes = jh057n_get_modes,
};
static int allpixelson_set(void *data, u64 val)
{
struct jh057n *ctx = data;
struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
DRM_DEV_DEBUG_DRIVER(ctx->dev, "Setting all pixels on");
dsi_generic_write_seq(dsi, ST7703_CMD_ALL_PIXEL_ON);
msleep(val * 1000);
/* Reset the panel to get video back */
drm_panel_disable(&ctx->panel);
drm_panel_unprepare(&ctx->panel);
drm_panel_prepare(&ctx->panel);
drm_panel_enable(&ctx->panel);
dsi_generic_write_seq(ctx, ST7703_DCS_CMD_ALLPON);
/* reset the panel after val seconds */
msleep(val*1000);
jh057n_unprepare(&ctx->panel);
msleep(10);
jh057n_prepare(&ctx->panel);
jh057n_enable(&ctx->panel);
return 0;
}
DEFINE_SIMPLE_ATTRIBUTE(allpixelson_fops, NULL,
allpixelson_set, "%llu\n");
static int jh057n_debugfs_init (struct jh057n *ctx)
static int jh057n_debugfs_init(struct jh057n *ctx)
{
struct dentry *f;
......@@ -317,7 +264,7 @@ static int jh057n_debugfs_init (struct jh057n *ctx)
if (!ctx->debugfs)
return -ENOMEM;
f = debugfs_create_file("allpixelson", S_IRUSR | S_IWUSR,
f = debugfs_create_file("allpixelson", 0600,
ctx->debugfs, ctx, &allpixelson_fops);
if (!f)
return -ENOMEM;
......@@ -335,7 +282,6 @@ static int jh057n_probe(struct mipi_dsi_device *dsi)
{
struct device *dev = &dsi->dev;
struct jh057n *ctx;
struct device_node *np;
int ret;
ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
......@@ -354,23 +300,12 @@ static int jh057n_probe(struct mipi_dsi_device *dsi)
dsi->lanes = 4;
dsi->format = MIPI_DSI_FMT_RGB888;
dsi->mode_flags = MIPI_DSI_MODE_VIDEO /* mdss-dsi-panel-type */
| MIPI_DSI_MODE_VIDEO_BURST
| MIPI_DSI_MODE_VIDEO_SYNC_PULSE
/* the st7703 supports LPM and HSM */
| MIPI_DSI_MODE_LPM
/* allow to shut down serial clock */
/* | MIPI_DSI_CLOCK_NON_CONTINUOUS */
;
np = of_parse_phandle(ctx->dev->of_node, "backlight", 0);
if (np) {
ctx->backlight = of_find_backlight_by_node(np);
of_node_put(np);
if (!ctx->backlight)
return -EPROBE_DEFER;
}
dsi->mode_flags = MIPI_DSI_MODE_VIDEO |
MIPI_DSI_MODE_VIDEO_BURST | MIPI_DSI_MODE_VIDEO_SYNC_PULSE;
ctx->backlight = devm_of_find_backlight(dev);
if (IS_ERR(ctx->backlight))
return PTR_ERR(ctx->backlight);
drm_panel_init(&ctx->panel);
ctx->panel.dev = dev;
......@@ -385,24 +320,44 @@ static int jh057n_probe(struct mipi_dsi_device *dsi)
return ret;
}
DRM_INFO(DRV_NAME "_panel %ux%u@%u %ubpp dsi %udl - ready",
default_mode.hdisplay, default_mode.vdisplay,
default_mode.vrefresh,
mipi_dsi_pixel_format_to_bpp(dsi->format), dsi->lanes);
DRM_DEV_INFO(dev, "%ux%u@%u %ubpp dsi %udl - ready",
default_mode.hdisplay, default_mode.vdisplay,
default_mode.vrefresh,
mipi_dsi_pixel_format_to_bpp(dsi->format), dsi->lanes);
jh057n_debugfs_init(ctx);
return 0;
}
static void jh057n_shutdown(struct mipi_dsi_device *dsi)
{
struct jh057n *ctx = mipi_dsi_get_drvdata(dsi);
int ret;
ret = jh057n_unprepare(&ctx->panel);
if (ret < 0)
DRM_DEV_ERROR(&dsi->dev, "Failed to unprepare panel: %d\n",
ret);
ret = jh057n_disable(&ctx->panel);
if (ret < 0)
DRM_DEV_ERROR(&dsi->dev, "Failed to disable panel: %d\n",
ret);
}
static int jh057n_remove(struct mipi_dsi_device *dsi)
{
struct jh057n *ctx = mipi_dsi_get_drvdata(dsi);
int ret;
mipi_dsi_detach(dsi);
drm_panel_remove(&ctx->panel);
jh057n_shutdown(dsi);
if (ctx->backlight)
put_device(&ctx->backlight->dev);
ret = mipi_dsi_detach(dsi);
if (ret < 0)
DRM_DEV_ERROR(&dsi->dev, "Failed to detach from DSI host: %d\n",
ret);