Add support for the Solomon Goldentek Display Model: GKTW70SDAD1SD to panel-simple.

The panel spec from Variscite can be found at: https://www.variscite.com/wp-content/uploads/2017/12/VLCD-CAP-GLD-RGB.pdf

Signed-off-by: Oliver Graute oliver.graute@gmail.com Reviewed-by: Marco Felsch m.felsch@pengutronix.de Reviewed-by: Fabio Estevam festevam@gmail.com ---

v5: - rebased

v4:

- added the datasheet labels - added Reviewed-by

v3:

- added flags - added delay

v2:

- changed bpc to 6 - set max value of pixelclock - increased hfront_porch and hback_porch - dropped connector-type

adding of bus_format = MEDIA_BUS_FMT_RGB666_1X18 results in wrong colors. omitting bus_format and using some default is better (Tux Pinguin is colored fine)

drivers/gpu/drm/panel/panel-simple.c | 33 ++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+)

diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c index eb475a3a774b..0fd88c3f752c 100644 --- a/drivers/gpu/drm/panel/panel-simple.c +++ b/drivers/gpu/drm/panel/panel-simple.c @@ -3065,6 +3065,36 @@ static const struct panel_desc satoz_sat050at40h12r2 = { .connector_type = DRM_MODE_CONNECTOR_LVDS, };

+static const struct display_timing sgd_gktw70sdad1sd_timing = { + .pixelclock = {30000000, 30000000, 40000000}, + .hactive = { 800, 800, 800}, + .hfront_porch = {40, 40, 40}, + .hback_porch = {40, 40, 40}, + .hsync_len = {48, 48, 48}, + .vactive = {480, 480, 480}, + .vfront_porch = {13, 13, 13}, + .vback_porch = {29, 29, 29}, + .vsync_len = {3, 3, 3}, + .flags = DISPLAY_FLAGS_HSYNC_LOW | DISPLAY_FLAGS_VSYNC_LOW | + DISPLAY_FLAGS_DE_HIGH | DISPLAY_FLAGS_PIXDATA_NEGEDGE, +}; + +static const struct panel_desc sgd_gktw70sdad1sd = { + .timings = &sgd_gktw70sdad1sd_timing, + .num_timings = 1, + .bpc = 6, + .size = { + .width = 153, + .height = 86, + }, + .delay = { + .prepare = 20 + 20 + 10 + 10, /* T0 + T2 + T3 + T4 */ + .enable = 50, /* T5 */ + .disable = 50, /* T5 */ + .unprepare = 10 + 10 + 20 + 20, /* T4 + T3 + T2 + T0 */ + }, +}; + static const struct drm_display_mode sharp_lq070y3dg3b_mode = { .clock = 33260, .hdisplay = 800, @@ -3857,6 +3887,9 @@ static const struct of_device_id platform_of_match[] = { }, { .compatible = "satoz,sat050at40h12r2", .data = &satoz_sat050at40h12r2, + }, { + .compatible = "sgd,gktw70sdad1sd", + .data = &sgd_gktw70sdad1sd, }, { .compatible = "sharp,lq035q7db03", .data = &sharp_lq035q7db03,