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path: root/drivers/gpu/drm/panel/panel-leadtek-ltk500hd1829.c
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Diffstat (limited to 'drivers/gpu/drm/panel/panel-leadtek-ltk500hd1829.c')
-rw-r--r--drivers/gpu/drm/panel/panel-leadtek-ltk500hd1829.c265
1 files changed, 241 insertions, 24 deletions
diff --git a/drivers/gpu/drm/panel/panel-leadtek-ltk500hd1829.c b/drivers/gpu/drm/panel/panel-leadtek-ltk500hd1829.c
index 39e408c9f7..a4c9a5cb98 100644
--- a/drivers/gpu/drm/panel/panel-leadtek-ltk500hd1829.c
+++ b/drivers/gpu/drm/panel/panel-leadtek-ltk500hd1829.c
@@ -11,6 +11,7 @@
#include <linux/gpio/consumer.h>
#include <linux/module.h>
#include <linux/of.h>
+#include <linux/of_device.h>
#include <linux/regulator/consumer.h>
#include <video/mipi_display.h>
@@ -21,25 +22,224 @@
#include <drm/drm_modes.h>
#include <drm/drm_panel.h>
+struct ltk500hd1829_cmd {
+ char cmd;
+ char data;
+};
+
+struct ltk500hd1829_desc {
+ const struct drm_display_mode *mode;
+ const struct ltk500hd1829_cmd *init;
+ unsigned int num_init;
+};
+
struct ltk500hd1829 {
struct device *dev;
struct drm_panel panel;
struct gpio_desc *reset_gpio;
struct regulator *vcc;
struct regulator *iovcc;
+ const struct ltk500hd1829_desc *panel_desc;
bool prepared;
};
-struct ltk500hd1829_cmd {
- char cmd;
- char data;
+static const struct ltk500hd1829_cmd ltk101b4029w_init[] = {
+ /* Page0 */
+ { 0xE0, 0x00 },
+ /* PASSWORD */
+ { 0xE1, 0x93 },
+ { 0xE2, 0x65 },
+ { 0xE3, 0xF8 },
+ { 0x80, 0x03 }, /* 0X03:4-LANE; 0X02:3-LANE; 0X01:2-LANE */
+ /* Page1 */
+ { 0xE0, 0x01 },
+ /* Set VCOM */
+ { 0x00, 0x00 },
+ { 0x01, 0x6F },
+ /* Set Gamma Power, VGMP,VGMN,VGSP,VGSN */
+ { 0x17, 0x00 },
+ { 0x18, 0xAF }, /* 4.3V */
+ { 0x19, 0x01 }, /* 0.3V */
+ { 0x1A, 0x00 },
+ { 0x1B, 0xAF }, /* 4.3V */
+ { 0x1C, 0x01 }, /* 0.3V */
+ /* Set Gate Power */
+ { 0x1F, 0x3E }, /* VGH_R = 15V */
+ { 0x20, 0x28 }, /* VGL_R = -12V */
+ { 0x21, 0x28 }, /* VGL_R2 = -12V */
+ { 0x22, 0x7E },
+ /* SETPANEL */
+ { 0x35, 0x26 },
+ { 0x37, 0x09 },
+ /* SET RGBCYC */
+ { 0x38, 0x04 },
+ { 0x39, 0x00 },
+ { 0x3A, 0x01 },
+ { 0x3C, 0x7C },
+ { 0x3D, 0xFF },
+ { 0x3E, 0xFF },
+ { 0x3F, 0x7F },
+ /* Set TCON */
+ { 0x40, 0x06 }, /* RSO = 800 RGB */
+ { 0x41, 0xA0 }, /* LN = 640->1280 line */
+ { 0x42, 0x81 },
+ { 0x43, 0x08 }, /* VFP = 8 */
+ { 0x44, 0x0B }, /* VBP = 12 */
+ { 0x45, 0x28 }, /* HBP = 40 */
+ /* power voltage */
+ { 0x55, 0x0F }, /* DCDCM = 0001, JD PWR_IC */
+ { 0x57, 0x69 },
+ { 0x59, 0x0A }, /* VCL = -2.9V */
+ { 0x5A, 0x28 }, /* VGH = 15V */
+ { 0x5B, 0x14 }, /* VGL = -11V */
+ /* Gamma */
+ { 0x5D, 0x7C },
+ { 0x5E, 0x65 },
+ { 0x5F, 0x55 },
+ { 0x60, 0x47 },
+ { 0x61, 0x43 },
+ { 0x62, 0x32 },
+ { 0x63, 0x34 },
+ { 0x64, 0x1C },
+ { 0x65, 0x33 },
+ { 0x66, 0x31 },
+ { 0x67, 0x30 },
+ { 0x68, 0x4E },
+ { 0x69, 0x3C },
+ { 0x6A, 0x44 },
+ { 0x6B, 0x35 },
+ { 0x6C, 0x31 },
+ { 0x6D, 0x23 },
+ { 0x6E, 0x11 },
+ { 0x6F, 0x00 },
+ { 0x70, 0x7C },
+ { 0x71, 0x65 },
+ { 0x72, 0x55 },
+ { 0x73, 0x47 },
+ { 0x74, 0x43 },
+ { 0x75, 0x32 },
+ { 0x76, 0x34 },
+ { 0x77, 0x1C },
+ { 0x78, 0x33 },
+ { 0x79, 0x31 },
+ { 0x7A, 0x30 },
+ { 0x7B, 0x4E },
+ { 0x7C, 0x3C },
+ { 0x7D, 0x44 },
+ { 0x7E, 0x35 },
+ { 0x7F, 0x31 },
+ { 0x80, 0x23 },
+ { 0x81, 0x11 },
+ { 0x82, 0x00 },
+ /* Page2, for GIP */
+ { 0xE0, 0x02 },
+ /* GIP_L Pin mapping */
+ { 0x00, 0x1E },
+ { 0x01, 0x1E },
+ { 0x02, 0x41 },
+ { 0x03, 0x41 },
+ { 0x04, 0x43 },
+ { 0x05, 0x43 },
+ { 0x06, 0x1F },
+ { 0x07, 0x1F },
+ { 0x08, 0x35 },
+ { 0x09, 0x1F },
+ { 0x0A, 0x15 },
+ { 0x0B, 0x15 },
+ { 0x0C, 0x1F },
+ { 0x0D, 0x47 },
+ { 0x0E, 0x47 },
+ { 0x0F, 0x45 },
+ { 0x10, 0x45 },
+ { 0x11, 0x4B },
+ { 0x12, 0x4B },
+ { 0x13, 0x49 },
+ { 0x14, 0x49 },
+ { 0x15, 0x1F },
+ /* GIP_R Pin mapping */
+ { 0x16, 0x1E },
+ { 0x17, 0x1E },
+ { 0x18, 0x40 },
+ { 0x19, 0x40 },
+ { 0x1A, 0x42 },
+ { 0x1B, 0x42 },
+ { 0x1C, 0x1F },
+ { 0x1D, 0x1F },
+ { 0x1E, 0x35 },
+ { 0x1F, 0x1F },
+ { 0x20, 0x15 },
+ { 0x21, 0x15 },
+ { 0x22, 0x1f },
+ { 0x23, 0x46 },
+ { 0x24, 0x46 },
+ { 0x25, 0x44 },
+ { 0x26, 0x44 },
+ { 0x27, 0x4A },
+ { 0x28, 0x4A },
+ { 0x29, 0x48 },
+ { 0x2A, 0x48 },
+ { 0x2B, 0x1F },
+ /* GIP Timing */
+ { 0x58, 0x40 },
+ { 0x5B, 0x30 },
+ { 0x5C, 0x03 },
+ { 0x5D, 0x30 },
+ { 0x5E, 0x01 },
+ { 0x5F, 0x02 },
+ { 0x63, 0x14 },
+ { 0x64, 0x6A },
+ { 0x67, 0x73 },
+ { 0x68, 0x05 },
+ { 0x69, 0x14 },
+ { 0x6A, 0x6A },
+ { 0x6B, 0x08 },
+ { 0x6C, 0x00 },
+ { 0x6D, 0x00 },
+ { 0x6E, 0x00 },
+ { 0x6F, 0x88 },
+ { 0x77, 0xDD },
+ { 0x79, 0x0E },
+ { 0x7A, 0x03 },
+ { 0x7D, 0x14 },
+ { 0x7E, 0x6A },
+ /* Page4 */
+ { 0xE0, 0x04 },
+ { 0x09, 0x11 },
+ { 0x0E, 0x48 },
+ { 0x2B, 0x2B },
+ { 0x2D, 0x03 },
+ { 0x2E, 0x44 },
+ /* Page0 */
+ { 0xE0, 0x00 },
+ { 0xE6, 0x02 },
+ { 0xE7, 0x0C },
+};
+
+static const struct drm_display_mode ltk101b4029w_mode = {
+ .hdisplay = 800,
+ .hsync_start = 800 + 18,
+ .hsync_end = 800 + 18 + 18,
+ .htotal = 800 + 18 + 18 + 18,
+ .vdisplay = 1280,
+ .vsync_start = 1280 + 24,
+ .vsync_end = 1280 + 24 + 4,
+ .vtotal = 1280 + 24 + 4 + 8,
+ .clock = 67330,
+ .width_mm = 136,
+ .height_mm = 218,
+};
+
+static const struct ltk500hd1829_desc ltk101b4029w_data = {
+ .mode = &ltk101b4029w_mode,
+ .init = ltk101b4029w_init,
+ .num_init = ARRAY_SIZE(ltk101b4029w_init),
};
/*
* There is no description in the Reference Manual about these commands.
* We received them from the vendor, so just use them as is.
*/
-static const struct ltk500hd1829_cmd init_code[] = {
+static const struct ltk500hd1829_cmd ltk500hd1829_init[] = {
{ 0xE0, 0x00 },
{ 0xE1, 0x93 },
{ 0xE2, 0x65 },
@@ -260,6 +460,26 @@ static const struct ltk500hd1829_cmd init_code[] = {
{ 0x35, 0x00 },
};
+static const struct drm_display_mode ltk500hd1829_mode = {
+ .hdisplay = 720,
+ .hsync_start = 720 + 50,
+ .hsync_end = 720 + 50 + 50,
+ .htotal = 720 + 50 + 50 + 50,
+ .vdisplay = 1280,
+ .vsync_start = 1280 + 30,
+ .vsync_end = 1280 + 30 + 4,
+ .vtotal = 1280 + 30 + 4 + 12,
+ .clock = 69217,
+ .width_mm = 62,
+ .height_mm = 110,
+};
+
+static const struct ltk500hd1829_desc ltk500hd1829_data = {
+ .mode = &ltk500hd1829_mode,
+ .init = ltk500hd1829_init,
+ .num_init = ARRAY_SIZE(ltk500hd1829_init),
+};
+
static inline
struct ltk500hd1829 *panel_to_ltk500hd1829(struct drm_panel *panel)
{
@@ -324,8 +544,8 @@ static int ltk500hd1829_prepare(struct drm_panel *panel)
/* tRT: >= 5ms */
usleep_range(5000, 6000);
- for (i = 0; i < ARRAY_SIZE(init_code); i++) {
- ret = mipi_dsi_generic_write(dsi, &init_code[i],
+ for (i = 0; i < ctx->panel_desc->num_init; i++) {
+ ret = mipi_dsi_generic_write(dsi, &ctx->panel_desc->init[i],
sizeof(struct ltk500hd1829_cmd));
if (ret < 0) {
dev_err(panel->dev, "failed to write init cmds: %d\n", ret);
@@ -359,31 +579,17 @@ disable_vcc:
return ret;
}
-static const struct drm_display_mode default_mode = {
- .hdisplay = 720,
- .hsync_start = 720 + 50,
- .hsync_end = 720 + 50 + 50,
- .htotal = 720 + 50 + 50 + 50,
- .vdisplay = 1280,
- .vsync_start = 1280 + 30,
- .vsync_end = 1280 + 30 + 4,
- .vtotal = 1280 + 30 + 4 + 12,
- .clock = 69217,
- .width_mm = 62,
- .height_mm = 110,
-};
-
static int ltk500hd1829_get_modes(struct drm_panel *panel,
struct drm_connector *connector)
{
struct ltk500hd1829 *ctx = panel_to_ltk500hd1829(panel);
struct drm_display_mode *mode;
- mode = drm_mode_duplicate(connector->dev, &default_mode);
+ mode = drm_mode_duplicate(connector->dev, ctx->panel_desc->mode);
if (!mode) {
dev_err(ctx->dev, "failed to add mode %ux%u@%u\n",
- default_mode.hdisplay, default_mode.vdisplay,
- drm_mode_vrefresh(&default_mode));
+ ctx->panel_desc->mode->hdisplay, ctx->panel_desc->mode->vdisplay,
+ drm_mode_vrefresh(ctx->panel_desc->mode));
return -ENOMEM;
}
@@ -413,6 +619,10 @@ static int ltk500hd1829_probe(struct mipi_dsi_device *dsi)
if (!ctx)
return -ENOMEM;
+ ctx->panel_desc = of_device_get_match_data(dev);
+ if (!ctx->panel_desc)
+ return -EINVAL;
+
ctx->reset_gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_LOW);
if (IS_ERR(ctx->reset_gpio)) {
dev_err(dev, "cannot get reset gpio\n");
@@ -492,7 +702,14 @@ static void ltk500hd1829_remove(struct mipi_dsi_device *dsi)
}
static const struct of_device_id ltk500hd1829_of_match[] = {
- { .compatible = "leadtek,ltk500hd1829", },
+ {
+ .compatible = "leadtek,ltk101b4029w",
+ .data = &ltk101b4029w_data,
+ },
+ {
+ .compatible = "leadtek,ltk500hd1829",
+ .data = &ltk500hd1829_data,
+ },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, ltk500hd1829_of_match);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-29 18:41:17 +0000