Commit 243b930f authored by Dave Airlie's avatar Dave Airlie
Browse files

Merge tag 'drm/panel/for-3.15-rc1' of git://anongit.freedesktop.org/tegra/linux into drm-next 

drm/panel: Changes for v3.15-rc1

Add support for a couple more simple panels. A few cleanups to the
simple panel driver are also included (gpiod interface conversion,
removal of redundant call to regulator_disable()).

* tag 'drm/panel/for-3.15-rc1' of git://anongit.freedesktop.org/tegra/linux:
  drm/panel: add support for LG LD070WX3-SL01 panel
  drm/panel: add support for LG LH500WX1-SD03 panel
  drm/panel: simple: Allow DSI panels to provide mode flags
  drm/panel: simple: Allow GPIO accesses to sleep
  drm/panel: remove redundant regulator_disable()
  drm/panel: use gpiod interface for enable GPIO
  drm/panel: Add LG 12.9" LCD panel
  MAINTAINERS: Add entry for DRM panel drivers

Conflicts:
	MAINTAINERS
parents 13b93892 712ac1ba

Documentation/devicetree/bindings/panel/lg,ld070wx3-sl01.txt

0 → 100644
+7 −0
Original line number Diff line number Diff line 
LG Corporation 7" WXGA TFT LCD panel



Required properties:

- compatible: should be "lg,ld070wx3-sl01"



This binding is compatible with the simple-panel binding, which is specified

in simple-panel.txt in this directory.

Documentation/devicetree/bindings/panel/lg,lh500wx1-sd03.txt

0 → 100644
+7 −0
Original line number Diff line number Diff line 
LG Corporation 5" HD TFT LCD panel



Required properties:

- compatible: should be "lg,lh500wx1-sd03"



This binding is compatible with the simple-panel binding, which is specified

in simple-panel.txt in this directory.

Documentation/devicetree/bindings/panel/lg,lp129qe.txt

0 → 100644
+7 −0
Original line number Diff line number Diff line 
LG 12.9" (2560x1700 pixels) TFT LCD panel



Required properties:

- compatible: should be "lg,lp129qe"



This binding is compatible with the simple-panel binding, which is specified

in simple-panel.txt in this directory.

MAINTAINERS

+10 −0
Original line number Diff line number Diff line
@@ -2866,6 +2866,16 @@ F: drivers/gpu/drm/radeon/ 
F:	include/drm/radeon*

F:	include/uapi/drm/radeon*



DRM PANEL DRIVERS

M:	Thierry Reding <thierry.reding@gmail.com>

L:	dri-devel@lists.freedesktop.org

T:	git git://anongit.freedesktop.org/tegra/linux.git

S:	Maintained

F:	drivers/gpu/drm/drm_panel.c

F:	drivers/gpu/drm/panel/

F:	include/drm/drm_panel.h

F:	Documentation/devicetree/bindings/panel/



INTEL DRM DRIVERS (excluding Poulsbo, Moorestown and derivative chipsets)

M:	Daniel Vetter <daniel.vetter@ffwll.ch>

M:	Jani Nikula <jani.nikula@linux.intel.com>

drivers/gpu/drm/panel/panel-simple.c

+106 −51
Original line number Diff line number Diff line
@@ -22,9 +22,8 @@ 
 */



#include <linux/backlight.h>

#include <linux/gpio.h>

#include <linux/gpio/consumer.h>

#include <linux/module.h>

#include <linux/of_gpio.h>

#include <linux/of_platform.h>

#include <linux/platform_device.h>

#include <linux/regulator/consumer.h>
@@ -44,9 +43,6 @@ struct panel_desc { 
	} size;

};



/* TODO: convert to gpiod_*() API once it's been merged */

#define GPIO_ACTIVE_LOW	(1 << 0)



struct panel_simple {

	struct drm_panel base;

	bool enabled;
@@ -57,8 +53,7 @@ struct panel_simple { 
	struct regulator *supply;

	struct i2c_adapter *ddc;



	unsigned long enable_gpio_flags;

	int enable_gpio;

	struct gpio_desc *enable_gpio;

};



static inline struct panel_simple *to_panel_simple(struct drm_panel *panel)
@@ -110,12 +105,8 @@ static int panel_simple_disable(struct drm_panel *panel) 
		backlight_update_status(p->backlight);

	}



	if (gpio_is_valid(p->enable_gpio)) {

		if (p->enable_gpio_flags & GPIO_ACTIVE_LOW)

			gpio_set_value(p->enable_gpio, 1);

		else

			gpio_set_value(p->enable_gpio, 0);

	}

	if (p->enable_gpio)

		gpiod_set_value_cansleep(p->enable_gpio, 0);



	regulator_disable(p->supply);

	p->enabled = false;
@@ -137,12 +128,8 @@ static int panel_simple_enable(struct drm_panel *panel) 
		return err;

	}



	if (gpio_is_valid(p->enable_gpio)) {

		if (p->enable_gpio_flags & GPIO_ACTIVE_LOW)

			gpio_set_value(p->enable_gpio, 0);

		else

			gpio_set_value(p->enable_gpio, 1);

	}

	if (p->enable_gpio)

		gpiod_set_value_cansleep(p->enable_gpio, 1);



	if (p->backlight) {

		p->backlight->props.power = FB_BLANK_UNBLANK;
@@ -185,7 +172,6 @@ static int panel_simple_probe(struct device *dev, const struct panel_desc *desc) 
{

	struct device_node *backlight, *ddc;

	struct panel_simple *panel;

	enum of_gpio_flags flags;

	int err;



	panel = devm_kzalloc(dev, sizeof(*panel), GFP_KERNEL);
@@ -199,29 +185,20 @@ static int panel_simple_probe(struct device *dev, const struct panel_desc *desc) 
	if (IS_ERR(panel->supply))

		return PTR_ERR(panel->supply);



	panel->enable_gpio = of_get_named_gpio_flags(dev->of_node,

						     "enable-gpios", 0,

						     &flags);

	if (gpio_is_valid(panel->enable_gpio)) {

		unsigned int value;



		if (flags & OF_GPIO_ACTIVE_LOW)

			panel->enable_gpio_flags |= GPIO_ACTIVE_LOW;



		err = gpio_request(panel->enable_gpio, "enable");

		if (err < 0) {

			dev_err(dev, "failed to request GPIO#%u: %d\n",

				panel->enable_gpio, err);

	panel->enable_gpio = devm_gpiod_get(dev, "enable");

	if (IS_ERR(panel->enable_gpio)) {

		err = PTR_ERR(panel->enable_gpio);

		if (err != -ENOENT) {

			dev_err(dev, "failed to request GPIO: %d\n", err);

			return err;

		}



		value = (panel->enable_gpio_flags & GPIO_ACTIVE_LOW) != 0;



		err = gpio_direction_output(panel->enable_gpio, value);

		panel->enable_gpio = NULL;

	} else {

		err = gpiod_direction_output(panel->enable_gpio, 0);

		if (err < 0) {

			dev_err(dev, "failed to setup GPIO%u: %d\n",

				panel->enable_gpio, err);

			goto free_gpio;

			dev_err(dev, "failed to setup GPIO: %d\n", err);

			return err;

		}

	}
@@ -230,10 +207,8 @@ static int panel_simple_probe(struct device *dev, const struct panel_desc *desc) 
		panel->backlight = of_find_backlight_by_node(backlight);

		of_node_put(backlight);



		if (!panel->backlight) {

			err = -EPROBE_DEFER;

			goto free_gpio;

		}

		if (!panel->backlight)

			return -EPROBE_DEFER;

	}



	ddc = of_parse_phandle(dev->of_node, "ddc-i2c-bus", 0);
@@ -265,9 +240,6 @@ free_ddc: 
free_backlight:

	if (panel->backlight)

		put_device(&panel->backlight->dev);

free_gpio:

	if (gpio_is_valid(panel->enable_gpio))

		gpio_free(panel->enable_gpio);



	return err;

}
@@ -287,11 +259,6 @@ static int panel_simple_remove(struct device *dev) 
	if (panel->backlight)

		put_device(&panel->backlight->dev);



	if (gpio_is_valid(panel->enable_gpio))

		gpio_free(panel->enable_gpio);



	regulator_disable(panel->supply);



	return 0;

}
@@ -361,6 +328,28 @@ static const struct panel_desc chunghwa_claa101wb01 = { 
	},

};



static const struct drm_display_mode lg_lp129qe_mode = {

	.clock = 285250,

	.hdisplay = 2560,

	.hsync_start = 2560 + 48,

	.hsync_end = 2560 + 48 + 32,

	.htotal = 2560 + 48 + 32 + 80,

	.vdisplay = 1700,

	.vsync_start = 1700 + 3,

	.vsync_end = 1700 + 3 + 10,

	.vtotal = 1700 + 3 + 10 + 36,

	.vrefresh = 60,

};



static const struct panel_desc lg_lp129qe = {

	.modes = &lg_lp129qe_mode,

	.num_modes = 1,

	.size = {

		.width = 272,

		.height = 181,

	},

};



static const struct drm_display_mode samsung_ltn101nt05_mode = {

	.clock = 54030,

	.hdisplay = 1024,
@@ -393,6 +382,9 @@ static const struct of_device_id platform_of_match[] = { 
	}, {

		.compatible = "chunghwa,claa101wb01",

		.data = &chunghwa_claa101wb01

	}, {

		.compatible = "lg,lp129qe",

		.data = &lg_lp129qe,

	}, {

		.compatible = "samsung,ltn101nt05",

		.data = &samsung_ltn101nt05,
@@ -433,10 +425,65 @@ static struct platform_driver panel_simple_platform_driver = { 
struct panel_desc_dsi {

	struct panel_desc desc;



	unsigned long flags;

	enum mipi_dsi_pixel_format format;

	unsigned int lanes;

};



static const struct drm_display_mode lg_ld070wx3_sl01_mode = {

	.clock = 71000,

	.hdisplay = 800,

	.hsync_start = 800 + 32,

	.hsync_end = 800 + 32 + 1,

	.htotal = 800 + 32 + 1 + 57,

	.vdisplay = 1280,

	.vsync_start = 1280 + 28,

	.vsync_end = 1280 + 28 + 1,

	.vtotal = 1280 + 28 + 1 + 14,

	.vrefresh = 60,

};



static const struct panel_desc_dsi lg_ld070wx3_sl01 = {

	.desc = {

		.modes = &lg_ld070wx3_sl01_mode,

		.num_modes = 1,

		.size = {

			.width = 94,

			.height = 151,

		},

	},

	.flags = MIPI_DSI_MODE_VIDEO,

	.format = MIPI_DSI_FMT_RGB888,

	.lanes = 4,

};



static const struct drm_display_mode lg_lh500wx1_sd03_mode = {

	.clock = 67000,

	.hdisplay = 720,

	.hsync_start = 720 + 12,

	.hsync_end = 720 + 12 + 4,

	.htotal = 720 + 12 + 4 + 112,

	.vdisplay = 1280,

	.vsync_start = 1280 + 8,

	.vsync_end = 1280 + 8 + 4,

	.vtotal = 1280 + 8 + 4 + 12,

	.vrefresh = 60,

};



static const struct panel_desc_dsi lg_lh500wx1_sd03 = {

	.desc = {

		.modes = &lg_lh500wx1_sd03_mode,

		.num_modes = 1,

		.size = {

			.width = 62,

			.height = 110,

		},

	},

	.flags = MIPI_DSI_MODE_VIDEO,

	.format = MIPI_DSI_FMT_RGB888,

	.lanes = 4,

};



static const struct drm_display_mode panasonic_vvx10f004b00_mode = {

	.clock = 157200,

	.hdisplay = 1920,
@@ -459,12 +506,19 @@ static const struct panel_desc_dsi panasonic_vvx10f004b00 = { 
			.height = 136,

		},

	},

	.flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_SYNC_PULSE,

	.format = MIPI_DSI_FMT_RGB888,

	.lanes = 4,

};



static const struct of_device_id dsi_of_match[] = {

	{

		.compatible = "lg,ld070wx3-sl01",

		.data = &lg_ld070wx3_sl01

	}, {

		.compatible = "lg,lh500wx1-sd03",

		.data = &lg_lh500wx1_sd03

	}, {

		.compatible = "panasonic,vvx10f004b00",

		.data = &panasonic_vvx10f004b00

	}, {
@@ -489,6 +543,7 @@ static int panel_simple_dsi_probe(struct mipi_dsi_device *dsi) 
	if (err < 0)

		return err;



	dsi->mode_flags = desc->flags;

	dsi->format = desc->format;

	dsi->lanes = desc->lanes;

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