We've seen some (non permanent) burn in and bad white balance on some of the panels. Adding this bit from a vendor supplied sequence fixes it.
Fixes: 72967d5616d3 ("drm/panel: Add panel driver for the Mantix MLAF057WE51-X DSI panel") Signed-off-by: Guido Günther agx@sigxcpu.org Reviewed-by: Linus Walleij linus.walleij@linaro.org --- drivers/gpu/drm/panel/panel-mantix-mlaf057we51.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/drivers/gpu/drm/panel/panel-mantix-mlaf057we51.c b/drivers/gpu/drm/panel/panel-mantix-mlaf057we51.c index 0c5f22e95c2d..624d17b96a69 100644 --- a/drivers/gpu/drm/panel/panel-mantix-mlaf057we51.c +++ b/drivers/gpu/drm/panel/panel-mantix-mlaf057we51.c @@ -22,6 +22,7 @@ /* Manufacturer specific Commands send via DSI */ #define MANTIX_CMD_OTP_STOP_RELOAD_MIPI 0x41 #define MANTIX_CMD_INT_CANCEL 0x4C +#define MANTIX_CMD_SPI_FINISH 0x90
struct mantix { struct device *dev; @@ -66,6 +67,10 @@ static int mantix_init_sequence(struct mantix *ctx) dsi_generic_write_seq(dsi, 0x80, 0x64, 0x00, 0x64, 0x00, 0x00); msleep(20);
+ dsi_generic_write_seq(dsi, MANTIX_CMD_SPI_FINISH, 0xA5); + dsi_generic_write_seq(dsi, MANTIX_CMD_OTP_STOP_RELOAD_MIPI, 0x00, 0x2F); + msleep(20); + dev_dbg(dev, "Panel init sequence done\n"); return 0; }