diff options
| author | Iswara Nagulendran <Iswara.Nagulendran@amd.com> | 2023-03-16 21:29:06 +0100 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-04-18 22:28:52 +0200 |
| commit | 4d5f872dbc755114628c236e17421629ec522203 (patch) | |
| tree | 4bf888b79880667294ffba16e1c976f0da09b11c /include/drm | |
| parent | drm/amd/display: Add FAMS validation before trying to use it (diff) | |
| download | linux-4d5f872dbc755114628c236e17421629ec522203.tar.xz linux-4d5f872dbc755114628c236e17421629ec522203.zip | |
drm/amd/display: Adding support for VESA SCR
[HOW&WHY]
Write DPCD 721 bit 7 to high, and
the appropriate luminance level
to DPCD 734-736 if bit 4 from DPCD register
734 is high, indicating that the panel
luminance control is enabled from the panel side.
Reviewed-by: Anthony Koo <Anthony.Koo@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Iswara Nagulendran <Iswara.Nagulendran@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'include/drm')
| -rw-r--r-- | include/drm/display/drm_dp.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/drm/display/drm_dp.h b/include/drm/display/drm_dp.h index 358db4a9f167..d735073fdd81 100644 --- a/include/drm/display/drm_dp.h +++ b/include/drm/display/drm_dp.h @@ -983,6 +983,7 @@ #define DP_EDP_GENERAL_CAP_2 0x703 # define DP_EDP_OVERDRIVE_ENGINE_ENABLED (1 << 0) +# define DP_EDP_PANEL_LUMINANCE_CONTROL_CAPABLE (1 << 4) #define DP_EDP_GENERAL_CAP_3 0x704 /* eDP 1.4 */ # define DP_EDP_X_REGION_CAP_MASK (0xf << 0) @@ -1008,6 +1009,7 @@ # define DP_EDP_DYNAMIC_BACKLIGHT_ENABLE (1 << 4) # define DP_EDP_REGIONAL_BACKLIGHT_ENABLE (1 << 5) # define DP_EDP_UPDATE_REGION_BRIGHTNESS (1 << 6) /* eDP 1.4 */ +# define DP_EDP_PANEL_LUMINANCE_CONTROL_ENABLE (1 << 7) #define DP_EDP_BACKLIGHT_BRIGHTNESS_MSB 0x722 #define DP_EDP_BACKLIGHT_BRIGHTNESS_LSB 0x723 @@ -1032,6 +1034,7 @@ #define DP_EDP_DBC_MINIMUM_BRIGHTNESS_SET 0x732 #define DP_EDP_DBC_MAXIMUM_BRIGHTNESS_SET 0x733 +#define DP_EDP_PANEL_TARGET_LUMINANCE_VALUE 0x734 #define DP_EDP_REGIONAL_BACKLIGHT_BASE 0x740 /* eDP 1.4 */ #define DP_EDP_REGIONAL_BACKLIGHT_0 0x741 /* eDP 1.4 */ |