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drm/panel: mantix: Tweak init sequence

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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: 72967d5616 ("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>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/8451831b60d5ecb73a156613d98218a31bd55680.1605688147.git.agx@sigxcpu.org
This commit is contained in:
Guido Günther 2020-11-18 09:29:49 +01:00
parent dfb6409089
commit dd396dbc4d
1 changed files with 5 additions and 0 deletions
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5
drivers/gpu/drm/panel/panel-mantix-mlaf057we51.c
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@ -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;
}