diff options
| author | Richard Acayan <mailingradian@gmail.com> | 2023-01-17 01:49:09 +0300 |
|---|---|---|
| committer | Neil Armstrong <neil.armstrong@linaro.org> | 2023-01-19 10:21:57 +0300 |
| commit | 9402cde9347eca050e14ea9e47270e84a6899162 (patch) | |
| tree | c98af55ad63290cee2bf8d3c9eeaaf90ebb8aab2 /drivers/gpu/drm/panel | |
| parent | fd40749a4f62a03d0aebe6eb446ea84a9901795a (diff) | |
| download | linux-9402cde9347eca050e14ea9e47270e84a6899162.tar.xz | |
drm/panel: vtdr6130: Use 16-bit brightness function
This panel communicates brightness in big endian. This is not a quirk of
the panels themselves, but rather, a part of the MIPI standard. Use the
new mipi_dsi_dcs_set_display_brightness_large() function that properly
handles 16-bit brightness instead of bypassing the brightness functions
entirely.
Signed-off-by: Richard Acayan <mailingradian@gmail.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-MTP
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230116224909.23884-4-mailingradian@gmail.com
Diffstat (limited to 'drivers/gpu/drm/panel')
| -rw-r--r-- | drivers/gpu/drm/panel/panel-visionox-vtdr6130.c | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/drivers/gpu/drm/panel/panel-visionox-vtdr6130.c b/drivers/gpu/drm/panel/panel-visionox-vtdr6130.c index f9a6abc1e121..1092075b31a5 100644 --- a/drivers/gpu/drm/panel/panel-visionox-vtdr6130.c +++ b/drivers/gpu/drm/panel/panel-visionox-vtdr6130.c @@ -243,12 +243,9 @@ static int visionox_vtdr6130_bl_update_status(struct backlight_device *bl) { struct mipi_dsi_device *dsi = bl_get_data(bl); u16 brightness = backlight_get_brightness(bl); - /* Panel needs big-endian order of brightness value */ - u8 payload[2] = { brightness >> 8, brightness & 0xff }; int ret; - ret = mipi_dsi_dcs_write(dsi, MIPI_DCS_SET_DISPLAY_BRIGHTNESS, - payload, sizeof(payload)); + mipi_dsi_dcs_set_display_brightness_large(dsi, brightness); if (ret < 0) return ret; |