diff options
| author | Luca Ceresoli <luca.ceresoli@bootlin.com> | 2024-12-16 19:21:35 +0300 |
|---|---|---|
| committer | Neil Armstrong <neil.armstrong@linaro.org> | 2024-12-18 13:14:55 +0300 |
| commit | bf6daaa281f7d11fcd91a68935142916afc51c53 (patch) | |
| tree | 8be0a845fc4bcc19804fb30c83d2e28829e69240 /drivers/gpu/drm/panel | |
| parent | 0c8d3b4a0342c5feb6887d18efd1273d80530674 (diff) | |
| download | linux-bf6daaa281f7d11fcd91a68935142916afc51c53.tar.xz | |
drm/panel: simple: Add Tianma TM070JDHG34-00 panel support
Add Tianma TM070JDHG34-00 7.0" 1280x800 LVDS RGB TFT LCD panel.
Panel info and datasheet: https://fortec.us/products/tm070jdhg34-00/
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Link: https://lore.kernel.org/r/20241216-tianma_tm070jdhg34-v2-2-0b319a0bac39@bootlin.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20241216-tianma_tm070jdhg34-v2-2-0b319a0bac39@bootlin.com
Diffstat (limited to 'drivers/gpu/drm/panel')
| -rw-r--r-- | drivers/gpu/drm/panel/panel-simple.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c index d5bb850df9d2..a41f0d95fcb5 100644 --- a/drivers/gpu/drm/panel/panel-simple.c +++ b/drivers/gpu/drm/panel/panel-simple.c @@ -4307,6 +4307,45 @@ static const struct panel_desc tianma_tm070jvhg33 = { .bus_flags = DRM_BUS_FLAG_DE_HIGH, }; +/* + * The datasheet computes total blanking as back porch + front porch, not + * including sync pulse width. This is for both H and V. To make the total + * blanking and period correct, subtract the pulse width from the front + * porch. + * + * This works well for the Min and Typ values, but for Max values the sync + * pulse width is higher than back porch + front porch, so work around that + * by reducing the Max sync length value to 1 and then treating the Max + * porches as in the Min and Typ cases. + * + * Exact datasheet values are added as a comment where they differ from the + * ones implemented for the above reason. + */ +static const struct display_timing tianma_tm070jdhg34_00_timing = { + .pixelclock = { 68400000, 71900000, 78100000 }, + .hactive = { 1280, 1280, 1280 }, + .hfront_porch = { 130, 138, 158 }, /* 131, 139, 159 */ + .hback_porch = { 5, 5, 5 }, + .hsync_len = { 1, 1, 1 }, /* 1, 1, 256 */ + .vactive = { 800, 800, 800 }, + .vfront_porch = { 2, 39, 98 }, /* 3, 40, 99 */ + .vback_porch = { 2, 2, 2 }, + .vsync_len = { 1, 1, 1 }, /* 1, 1, 128 */ + .flags = DISPLAY_FLAGS_DE_HIGH, +}; + +static const struct panel_desc tianma_tm070jdhg34_00 = { + .timings = &tianma_tm070jdhg34_00_timing, + .num_timings = 1, + .bpc = 8, + .size = { + .width = 150, /* 149.76 */ + .height = 94, /* 93.60 */ + }, + .bus_format = MEDIA_BUS_FMT_RGB888_1X7X4_SPWG, + .connector_type = DRM_MODE_CONNECTOR_LVDS, +}; + static const struct display_timing tianma_tm070rvhg71_timing = { .pixelclock = { 27700000, 29200000, 39600000 }, .hactive = { 800, 800, 800 }, @@ -5053,6 +5092,9 @@ static const struct of_device_id platform_of_match[] = { .compatible = "tianma,tm070jdhg30", .data = &tianma_tm070jdhg30, }, { + .compatible = "tianma,tm070jdhg34-00", + .data = &tianma_tm070jdhg34_00, + }, { .compatible = "tianma,tm070jvhg33", .data = &tianma_tm070jvhg33, }, { |