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Commit 243b930f authored by Dave Airlie's avatar Dave Airlie
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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
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Showing with 137 additions and 51 deletions
Documentation/devicetree/bindings/panel/lg,ld070wx3-sl01.txt 0 → 100644
View file @ 243b930f
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
View file @ 243b930f
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
View file @ 243b930f
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
View file @ 243b930f
......@@ -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
View file @ 243b930f
......@@ -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 @@ static int panel_simple_probe(struct device *dev, const struct panel_desc *desc)
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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