diff options
Diffstat (limited to 'drivers/gpu/drm/panel/panel-leadtek-ltk500hd1829.c')
| -rw-r--r-- | drivers/gpu/drm/panel/panel-leadtek-ltk500hd1829.c | 265 |
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 39e408c9f762..a4c9a5cb9811 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 = <k101b4029w_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 = <k500hd1829_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 = <k101b4029w_data, + }, + { + .compatible = "leadtek,ltk500hd1829", + .data = <k500hd1829_data, + }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, ltk500hd1829_of_match); |