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| author | Iswara Nagulendran <Iswara.Nagulendran@amd.com> | 2023-03-16 16:29:06 -0400 |
|---|---|---|
| committer | Qingqing Zhuo <Qingqing.Zhuo@amd.com> | 2023-04-17 15:56:30 -0400 |
| commit | 200199ae9a64ad94e42ea995f9a9d4d362b3ff99 (patch) | |
| tree | 9ca2e2178882743420eb8871696737a281968c60 /include/drm | |
| parent | 6043e0f1fb1422268570c81795e65f58c998168a (diff) | |
| download | linux-200199ae9a64ad94e42ea995f9a9d4d362b3ff99.tar.gz | |
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>
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 ed10e6b6f99d..f1be179c5f1f 100644 --- a/include/drm/display/drm_dp.h +++ b/include/drm/display/drm_dp.h @@ -973,6 +973,7 @@ #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) @@ -998,6 +999,7 @@ # 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 @@ -1022,6 +1024,7 @@ #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 */ |