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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.c407
1 files changed, 372 insertions, 35 deletions
diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index 5a93c4edf1e4..28fa6ba7b767 100644
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -30,6 +30,7 @@
#include <linux/regulator/consumer.h>
#include <video/display_timing.h>
+#include <video/of_display_timing.h>
#include <video/videomode.h>
#include <drm/drm_crtc.h>
@@ -37,6 +38,22 @@
#include <drm/drm_mipi_dsi.h>
#include <drm/drm_panel.h>
+/**
+ * @modes: Pointer to array of fixed modes appropriate for this panel. If
+ * only one mode then this can just be the address of this the mode.
+ * NOTE: cannot be used with "timings" and also if this is specified
+ * then you cannot override the mode in the device tree.
+ * @num_modes: Number of elements in modes array.
+ * @timings: Pointer to array of display timings. NOTE: cannot be used with
+ * "modes" and also these will be used to validate a device tree
+ * override if one is present.
+ * @num_timings: Number of elements in timings array.
+ * @bpc: Bits per color.
+ * @size: Structure containing the physical size of this panel.
+ * @delay: Structure containing various delay values for this panel.
+ * @bus_format: See MEDIA_BUS_FMT_... defines.
+ * @bus_flags: See DRM_BUS_FLAG_... defines.
+ */
struct panel_desc {
const struct drm_display_mode *modes;
unsigned int num_modes;
@@ -92,6 +109,8 @@ struct panel_simple {
struct i2c_adapter *ddc;
struct gpio_desc *enable_gpio;
+
+ struct drm_display_mode override_mode;
};
static inline struct panel_simple *to_panel_simple(struct drm_panel *panel)
@@ -99,16 +118,13 @@ static inline struct panel_simple *to_panel_simple(struct drm_panel *panel)
return container_of(panel, struct panel_simple, base);
}
-static int panel_simple_get_fixed_modes(struct panel_simple *panel)
+static unsigned int panel_simple_get_timings_modes(struct panel_simple *panel)
{
struct drm_connector *connector = panel->base.connector;
struct drm_device *drm = panel->base.drm;
struct drm_display_mode *mode;
unsigned int i, num = 0;
- if (!panel->desc)
- return 0;
-
for (i = 0; i < panel->desc->num_timings; i++) {
const struct display_timing *dt = &panel->desc->timings[i];
struct videomode vm;
@@ -132,6 +148,16 @@ static int panel_simple_get_fixed_modes(struct panel_simple *panel)
num++;
}
+ return num;
+}
+
+static unsigned int panel_simple_get_display_modes(struct panel_simple *panel)
+{
+ struct drm_connector *connector = panel->base.connector;
+ struct drm_device *drm = panel->base.drm;
+ struct drm_display_mode *mode;
+ unsigned int i, num = 0;
+
for (i = 0; i < panel->desc->num_modes; i++) {
const struct drm_display_mode *m = &panel->desc->modes[i];
@@ -153,6 +179,44 @@ static int panel_simple_get_fixed_modes(struct panel_simple *panel)
num++;
}
+ return num;
+}
+
+static int panel_simple_get_non_edid_modes(struct panel_simple *panel)
+{
+ struct drm_connector *connector = panel->base.connector;
+ struct drm_device *drm = panel->base.drm;
+ struct drm_display_mode *mode;
+ bool has_override = panel->override_mode.type;
+ unsigned int num = 0;
+
+ if (!panel->desc)
+ return 0;
+
+ if (has_override) {
+ mode = drm_mode_duplicate(drm, &panel->override_mode);
+ if (mode) {
+ drm_mode_probed_add(connector, mode);
+ num = 1;
+ } else {
+ dev_err(drm->dev, "failed to add override mode\n");
+ }
+ }
+
+ /* Only add timings if override was not there or failed to validate */
+ if (num == 0 && panel->desc->num_timings)
+ num = panel_simple_get_timings_modes(panel);
+
+ /*
+ * Only add fixed modes if timings/override added no mode.
+ *
+ * We should only ever have either the display timings specified
+ * or a fixed mode. Anything else is rather bogus.
+ */
+ WARN_ON(panel->desc->num_timings && panel->desc->num_modes);
+ if (num == 0)
+ num = panel_simple_get_display_modes(panel);
+
connector->display_info.bpc = panel->desc->bpc;
connector->display_info.width_mm = panel->desc->size.width;
connector->display_info.height_mm = panel->desc->size.height;
@@ -269,7 +333,7 @@ static int panel_simple_get_modes(struct drm_panel *panel)
}
/* add hard-coded panel modes */
- num += panel_simple_get_fixed_modes(p);
+ num += panel_simple_get_non_edid_modes(p);
return num;
}
@@ -300,10 +364,58 @@ static const struct drm_panel_funcs panel_simple_funcs = {
.get_timings = panel_simple_get_timings,
};
+#define PANEL_SIMPLE_BOUNDS_CHECK(to_check, bounds, field) \
+ (to_check->field.typ >= bounds->field.min && \
+ to_check->field.typ <= bounds->field.max)
+static void panel_simple_parse_panel_timing_node(struct device *dev,
+ struct panel_simple *panel,
+ const struct display_timing *ot)
+{
+ const struct panel_desc *desc = panel->desc;
+ struct videomode vm;
+ unsigned int i;
+
+ if (WARN_ON(desc->num_modes)) {
+ dev_err(dev, "Reject override mode: panel has a fixed mode\n");
+ return;
+ }
+ if (WARN_ON(!desc->num_timings)) {
+ dev_err(dev, "Reject override mode: no timings specified\n");
+ return;
+ }
+
+ for (i = 0; i < panel->desc->num_timings; i++) {
+ const struct display_timing *dt = &panel->desc->timings[i];
+
+ if (!PANEL_SIMPLE_BOUNDS_CHECK(ot, dt, hactive) ||
+ !PANEL_SIMPLE_BOUNDS_CHECK(ot, dt, hfront_porch) ||
+ !PANEL_SIMPLE_BOUNDS_CHECK(ot, dt, hback_porch) ||
+ !PANEL_SIMPLE_BOUNDS_CHECK(ot, dt, hsync_len) ||
+ !PANEL_SIMPLE_BOUNDS_CHECK(ot, dt, vactive) ||
+ !PANEL_SIMPLE_BOUNDS_CHECK(ot, dt, vfront_porch) ||
+ !PANEL_SIMPLE_BOUNDS_CHECK(ot, dt, vback_porch) ||
+ !PANEL_SIMPLE_BOUNDS_CHECK(ot, dt, vsync_len))
+ continue;
+
+ if (ot->flags != dt->flags)
+ continue;
+
+ videomode_from_timing(ot, &vm);
+ drm_display_mode_from_videomode(&vm, &panel->override_mode);
+ panel->override_mode.type |= DRM_MODE_TYPE_DRIVER |
+ DRM_MODE_TYPE_PREFERRED;
+ break;
+ }
+
+ if (WARN_ON(!panel->override_mode.type))
+ dev_err(dev, "Reject override mode: No display_timing found\n");
+}
+
static int panel_simple_probe(struct device *dev, const struct panel_desc *desc)
{
struct device_node *backlight, *ddc;
struct panel_simple *panel;
+ struct display_timing dt;
int err;
panel = devm_kzalloc(dev, sizeof(*panel), GFP_KERNEL);
@@ -349,6 +461,9 @@ static int panel_simple_probe(struct device *dev, const struct panel_desc *desc)
}
}
+ if (!of_get_display_timing(dev->of_node, "panel-timing", &dt))
+ panel_simple_parse_panel_timing_node(dev, panel, &dt);
+
drm_panel_init(&panel->base);
panel->base.dev = dev;
panel->base.funcs = &panel_simple_funcs;
@@ -496,22 +611,21 @@ static const struct panel_desc auo_b101aw03 = {
},
};
-static const struct drm_display_mode auo_b101ean01_mode = {
- .clock = 72500,
- .hdisplay = 1280,
- .hsync_start = 1280 + 119,
- .hsync_end = 1280 + 119 + 32,
- .htotal = 1280 + 119 + 32 + 21,
- .vdisplay = 800,
- .vsync_start = 800 + 4,
- .vsync_end = 800 + 4 + 20,
- .vtotal = 800 + 4 + 20 + 8,
- .vrefresh = 60,
+static const struct display_timing auo_b101ean01_timing = {
+ .pixelclock = { 65300000, 72500000, 75000000 },
+ .hactive = { 1280, 1280, 1280 },
+ .hfront_porch = { 18, 119, 119 },
+ .hback_porch = { 21, 21, 21 },
+ .hsync_len = { 32, 32, 32 },
+ .vactive = { 800, 800, 800 },
+ .vfront_porch = { 4, 4, 4 },
+ .vback_porch = { 8, 8, 8 },
+ .vsync_len = { 18, 20, 20 },
};
static const struct panel_desc auo_b101ean01 = {
- .modes = &auo_b101ean01_mode,
- .num_modes = 1,
+ .timings = &auo_b101ean01_timing,
+ .num_timings = 1,
.bpc = 6,
.size = {
.width = 217,
@@ -724,9 +838,9 @@ static const struct panel_desc auo_g133han01 = {
static const struct display_timing auo_g185han01_timings = {
.pixelclock = { 120000000, 144000000, 175000000 },
.hactive = { 1920, 1920, 1920 },
- .hfront_porch = { 18, 60, 74 },
- .hback_porch = { 12, 44, 54 },
- .hsync_len = { 10, 24, 32 },
+ .hfront_porch = { 36, 120, 148 },
+ .hback_porch = { 24, 88, 108 },
+ .hsync_len = { 20, 48, 64 },
.vactive = { 1080, 1080, 1080 },
.vfront_porch = { 6, 10, 40 },
.vback_porch = { 2, 5, 20 },
@@ -1335,6 +1449,31 @@ static const struct panel_desc giantplus_gpg482739qs5 = {
.bus_format = MEDIA_BUS_FMT_RGB888_1X24,
};
+static const struct display_timing giantplus_gpm940b0_timing = {
+ .pixelclock = { 13500000, 27000000, 27500000 },
+ .hactive = { 320, 320, 320 },
+ .hfront_porch = { 14, 686, 718 },
+ .hback_porch = { 50, 70, 255 },
+ .hsync_len = { 1, 1, 1 },
+ .vactive = { 240, 240, 240 },
+ .vfront_porch = { 1, 1, 179 },
+ .vback_porch = { 1, 21, 31 },
+ .vsync_len = { 1, 1, 6 },
+ .flags = DISPLAY_FLAGS_HSYNC_LOW | DISPLAY_FLAGS_VSYNC_LOW,
+};
+
+static const struct panel_desc giantplus_gpm940b0 = {
+ .timings = &giantplus_gpm940b0_timing,
+ .num_timings = 1,
+ .bpc = 8,
+ .size = {
+ .width = 60,
+ .height = 45,
+ },
+ .bus_format = MEDIA_BUS_FMT_RGB888_3X8,
+ .bus_flags = DRM_BUS_FLAG_DE_HIGH | DRM_BUS_FLAG_PIXDATA_NEGEDGE,
+};
+
static const struct display_timing hannstar_hsd070pww1_timing = {
.pixelclock = { 64300000, 71100000, 82000000 },
.hactive = { 1280, 1280, 1280 },
@@ -1578,23 +1717,32 @@ static const struct panel_desc innolux_g121x1_l03 = {
},
};
-static const struct drm_display_mode innolux_n116bge_mode = {
- .clock = 76420,
- .hdisplay = 1366,
- .hsync_start = 1366 + 136,
- .hsync_end = 1366 + 136 + 30,
- .htotal = 1366 + 136 + 30 + 60,
- .vdisplay = 768,
- .vsync_start = 768 + 8,
- .vsync_end = 768 + 8 + 12,
- .vtotal = 768 + 8 + 12 + 12,
- .vrefresh = 60,
- .flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC,
+/*
+ * Datasheet specifies that at 60 Hz refresh rate:
+ * - total horizontal time: { 1506, 1592, 1716 }
+ * - total vertical time: { 788, 800, 868 }
+ *
+ * ...but doesn't go into exactly how that should be split into a front
+ * porch, back porch, or sync length. For now we'll leave a single setting
+ * here which allows a bit of tweaking of the pixel clock at the expense of
+ * refresh rate.
+ */
+static const struct display_timing innolux_n116bge_timing = {
+ .pixelclock = { 72600000, 76420000, 80240000 },
+ .hactive = { 1366, 1366, 1366 },
+ .hfront_porch = { 136, 136, 136 },
+ .hback_porch = { 60, 60, 60 },
+ .hsync_len = { 30, 30, 30 },
+ .vactive = { 768, 768, 768 },
+ .vfront_porch = { 8, 8, 8 },
+ .vback_porch = { 12, 12, 12 },
+ .vsync_len = { 12, 12, 12 },
+ .flags = DISPLAY_FLAGS_VSYNC_LOW | DISPLAY_FLAGS_HSYNC_LOW,
};
static const struct panel_desc innolux_n116bge = {
- .modes = &innolux_n116bge_mode,
- .num_modes = 1,
+ .timings = &innolux_n116bge_timing,
+ .num_timings = 1,
.bpc = 6,
.size = {
.width = 256,
@@ -2157,6 +2305,33 @@ static const struct panel_desc ontat_yx700wv03 = {
.bus_format = MEDIA_BUS_FMT_RGB666_1X18,
};
+static const struct drm_display_mode ortustech_com37h3m_mode = {
+ .clock = 22153,
+ .hdisplay = 480,
+ .hsync_start = 480 + 8,
+ .hsync_end = 480 + 8 + 10,
+ .htotal = 480 + 8 + 10 + 10,
+ .vdisplay = 640,
+ .vsync_start = 640 + 4,
+ .vsync_end = 640 + 4 + 3,
+ .vtotal = 640 + 4 + 3 + 4,
+ .vrefresh = 60,
+ .flags = DRM_MODE_FLAG_NVSYNC | DRM_MODE_FLAG_NHSYNC,
+};
+
+static const struct panel_desc ortustech_com37h3m = {
+ .modes = &ortustech_com37h3m_mode,
+ .num_modes = 1,
+ .bpc = 8,
+ .size = {
+ .width = 56, /* 56.16mm */
+ .height = 75, /* 74.88mm */
+ },
+ .bus_format = MEDIA_BUS_FMT_RGB888_1X24,
+ .bus_flags = DRM_BUS_FLAG_DE_HIGH | DRM_BUS_FLAG_PIXDATA_POSEDGE |
+ DRM_BUS_FLAG_SYNC_DRIVE_POSEDGE,
+};
+
static const struct drm_display_mode ortustech_com43h4m85ulc_mode = {
.clock = 25000,
.hdisplay = 480,
@@ -2354,6 +2529,59 @@ static const struct panel_desc samsung_ltn140at29_301 = {
},
};
+static const struct drm_display_mode sharp_ld_d5116z01b_mode = {
+ .clock = 168480,
+ .hdisplay = 1920,
+ .hsync_start = 1920 + 48,
+ .hsync_end = 1920 + 48 + 32,
+ .htotal = 1920 + 48 + 32 + 80,
+ .vdisplay = 1280,
+ .vsync_start = 1280 + 3,
+ .vsync_end = 1280 + 3 + 10,
+ .vtotal = 1280 + 3 + 10 + 57,
+ .vrefresh = 60,
+ .flags = DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC,
+};
+
+static const struct panel_desc sharp_ld_d5116z01b = {
+ .modes = &sharp_ld_d5116z01b_mode,
+ .num_modes = 1,
+ .bpc = 8,
+ .size = {
+ .width = 260,
+ .height = 120,
+ },
+ .bus_format = MEDIA_BUS_FMT_RGB888_1X24,
+ .bus_flags = DRM_BUS_FLAG_DATA_MSB_TO_LSB,
+};
+
+static const struct drm_display_mode sharp_lq070y3dg3b_mode = {
+ .clock = 33260,
+ .hdisplay = 800,
+ .hsync_start = 800 + 64,
+ .hsync_end = 800 + 64 + 128,
+ .htotal = 800 + 64 + 128 + 64,
+ .vdisplay = 480,
+ .vsync_start = 480 + 8,
+ .vsync_end = 480 + 8 + 2,
+ .vtotal = 480 + 8 + 2 + 35,
+ .vrefresh = 60,
+ .flags = DISPLAY_FLAGS_PIXDATA_POSEDGE,
+};
+
+static const struct panel_desc sharp_lq070y3dg3b = {
+ .modes = &sharp_lq070y3dg3b_mode,
+ .num_modes = 1,
+ .bpc = 8,
+ .size = {
+ .width = 152, /* 152.4mm */
+ .height = 91, /* 91.4mm */
+ },
+ .bus_format = MEDIA_BUS_FMT_RGB888_1X24,
+ .bus_flags = DRM_BUS_FLAG_DE_HIGH | DRM_BUS_FLAG_PIXDATA_POSEDGE |
+ DRM_BUS_FLAG_SYNC_DRIVE_POSEDGE,
+};
+
static const struct drm_display_mode sharp_lq035q7db03_mode = {
.clock = 5500,
.hdisplay = 240,
@@ -2454,6 +2682,33 @@ static const struct panel_desc sharp_lq150x1lg11 = {
.bus_format = MEDIA_BUS_FMT_RGB565_1X16,
};
+static const struct display_timing sharp_ls020b1dd01d_timing = {
+ .pixelclock = { 2000000, 4200000, 5000000 },
+ .hactive = { 240, 240, 240 },
+ .hfront_porch = { 66, 66, 66 },
+ .hback_porch = { 1, 1, 1 },
+ .hsync_len = { 1, 1, 1 },
+ .vactive = { 160, 160, 160 },
+ .vfront_porch = { 52, 52, 52 },
+ .vback_porch = { 6, 6, 6 },
+ .vsync_len = { 10, 10, 10 },
+ .flags = DISPLAY_FLAGS_HSYNC_HIGH | DISPLAY_FLAGS_VSYNC_LOW,
+};
+
+static const struct panel_desc sharp_ls020b1dd01d = {
+ .timings = &sharp_ls020b1dd01d_timing,
+ .num_timings = 1,
+ .bpc = 6,
+ .size = {
+ .width = 42,
+ .height = 28,
+ },
+ .bus_format = MEDIA_BUS_FMT_RGB565_1X16,
+ .bus_flags = DRM_BUS_FLAG_DE_HIGH
+ | DRM_BUS_FLAG_PIXDATA_NEGEDGE
+ | DRM_BUS_FLAG_SHARP_SIGNALS,
+};
+
static const struct drm_display_mode shelly_sca07010_bfn_lnn_mode = {
.clock = 33300,
.hdisplay = 800,
@@ -2578,6 +2833,64 @@ static const struct panel_desc tianma_tm070rvhg71 = {
.bus_format = MEDIA_BUS_FMT_RGB888_1X7X4_SPWG,
};
+static const struct drm_display_mode ti_nspire_cx_lcd_mode[] = {
+ {
+ .clock = 10000,
+ .hdisplay = 320,
+ .hsync_start = 320 + 50,
+ .hsync_end = 320 + 50 + 6,
+ .htotal = 320 + 50 + 6 + 38,
+ .vdisplay = 240,
+ .vsync_start = 240 + 3,
+ .vsync_end = 240 + 3 + 1,
+ .vtotal = 240 + 3 + 1 + 17,
+ .vrefresh = 60,
+ .flags = DRM_MODE_FLAG_NVSYNC | DRM_MODE_FLAG_NHSYNC,
+ },
+};
+
+static const struct panel_desc ti_nspire_cx_lcd_panel = {
+ .modes = ti_nspire_cx_lcd_mode,
+ .num_modes = 1,
+ .bpc = 8,
+ .size = {
+ .width = 65,
+ .height = 49,
+ },
+ .bus_format = MEDIA_BUS_FMT_RGB888_1X24,
+ .bus_flags = DRM_BUS_FLAG_PIXDATA_NEGEDGE,
+};
+
+static const struct drm_display_mode ti_nspire_classic_lcd_mode[] = {
+ {
+ .clock = 10000,
+ .hdisplay = 320,
+ .hsync_start = 320 + 6,
+ .hsync_end = 320 + 6 + 6,
+ .htotal = 320 + 6 + 6 + 6,
+ .vdisplay = 240,
+ .vsync_start = 240 + 0,
+ .vsync_end = 240 + 0 + 1,
+ .vtotal = 240 + 0 + 1 + 0,
+ .vrefresh = 60,
+ .flags = DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC,
+ },
+};
+
+static const struct panel_desc ti_nspire_classic_lcd_panel = {
+ .modes = ti_nspire_classic_lcd_mode,
+ .num_modes = 1,
+ /* The grayscale panel has 8 bit for the color .. Y (black) */
+ .bpc = 8,
+ .size = {
+ .width = 71,
+ .height = 53,
+ },
+ /* This is the grayscale bus format */
+ .bus_format = MEDIA_BUS_FMT_Y8_1X8,
+ .bus_flags = DRM_BUS_FLAG_PIXDATA_POSEDGE,
+};
+
static const struct drm_display_mode toshiba_lt089ac29000_mode = {
.clock = 79500,
.hdisplay = 1280,
@@ -2883,6 +3196,9 @@ static const struct of_device_id platform_of_match[] = {
.compatible = "giantplus,gpg482739qs5",
.data = &giantplus_gpg482739qs5
}, {
+ .compatible = "giantplus,gpm940b0",
+ .data = &giantplus_gpm940b0,
+ }, {
.compatible = "hannstar,hsd070pww1",
.data = &hannstar_hsd070pww1,
}, {
@@ -2979,6 +3295,12 @@ static const struct of_device_id platform_of_match[] = {
.compatible = "ontat,yx700wv03",
.data = &ontat_yx700wv03,
}, {
+ .compatible = "ortustech,com37h3m05dtc",
+ .data = &ortustech_com37h3m,
+ }, {
+ .compatible = "ortustech,com37h3m99dtc",
+ .data = &ortustech_com37h3m,
+ }, {
.compatible = "ortustech,com43h4m85ulc",
.data = &ortustech_com43h4m85ulc,
}, {
@@ -3003,9 +3325,15 @@ static const struct of_device_id platform_of_match[] = {
.compatible = "samsung,ltn140at29-301",
.data = &samsung_ltn140at29_301,
}, {
+ .compatible = "sharp,ld-d5116z01b",
+ .data = &sharp_ld_d5116z01b,
+ }, {
.compatible = "sharp,lq035q7db03",
.data = &sharp_lq035q7db03,
}, {
+ .compatible = "sharp,lq070y3dg3b",
+ .data = &sharp_lq070y3dg3b,
+ }, {
.compatible = "sharp,lq101k1ly04",
.data = &sharp_lq101k1ly04,
}, {
@@ -3015,6 +3343,9 @@ static const struct of_device_id platform_of_match[] = {
.compatible = "sharp,lq150x1lg11",
.data = &sharp_lq150x1lg11,
}, {
+ .compatible = "sharp,ls020b1dd01d",
+ .data = &sharp_ls020b1dd01d,
+ }, {
.compatible = "shelly,sca07010-bfn-lnn",
.data = &shelly_sca07010_bfn_lnn,
}, {
@@ -3030,6 +3361,12 @@ static const struct of_device_id platform_of_match[] = {
.compatible = "tianma,tm070rvhg71",
.data = &tianma_tm070rvhg71,
}, {
+ .compatible = "ti,nspire-cx-lcd-panel",
+ .data = &ti_nspire_cx_lcd_panel,
+ }, {
+ .compatible = "ti,nspire-classic-lcd-panel",
+ .data = &ti_nspire_classic_lcd_panel,
+ }, {
.compatible = "toshiba,lt089ac29000",
.data = &toshiba_lt089ac29000,
}, {
generated by cgit v1.2.3 (git 2.39.0) at 2024-07-19 19:35:28 +0300