diff options
| author | Guido Günther <agx@sigxcpu.org> | 2020-11-18 09:29:49 +0100 |
|---|---|---|
| committer | Guido Günther <agx@sigxcpu.org> | 2020-12-08 11:05:42 +0100 |
| commit | dd396dbc4d7811c1567cc43faa4b9ad68094c44d (patch) | |
| tree | 3e6ee8cd5ee05d7086eda506e8df8a45c4582b85 | |
| parent | dfb64090892ff377e714aa695d028e5de5d57091 (diff) | |
| download | lwn-dd396dbc4d7811c1567cc43faa4b9ad68094c44d.tar.gz lwn-dd396dbc4d7811c1567cc43faa4b9ad68094c44d.zip | |
drm/panel: mantix: Tweak init sequence
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>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/8451831b60d5ecb73a156613d98218a31bd55680.1605688147.git.agx@sigxcpu.org
| -rw-r--r-- | drivers/gpu/drm/panel/panel-mantix-mlaf057we51.c | 5 |
1 files changed, 5 insertions, 0 deletions
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; } |