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path: root/drivers/gpu/drm/panel/panel-simple.c
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Diffstat (limited to 'drivers/gpu/drm/panel/panel-simple.c')
-rw-r--r--drivers/gpu/drm/panel/panel-simple.c157
1 files changed, 106 insertions, 51 deletions
diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index 59d52ca..309f29e 100644
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -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,
@@ -394,6 +383,9 @@ 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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