diff options
| author | Imre Deak <imre.deak@intel.com> | 2023-10-24 04:09:02 +0300 |
|---|---|---|
| committer | Imre Deak <imre.deak@intel.com> | 2023-11-08 17:22:08 +0200 |
| commit | b348150406564595cf6c1be388e9797fa97c2a5d (patch) | |
| tree | 9fa98cdb995aa9fa76d8cb1fdb23587acd6f0505 /include/drm | |
| parent | 6f1aa39d6497d4d27f8ee132e9cb8bdbfe7c0674 (diff) | |
| download | linux-b348150406564595cf6c1be388e9797fa97c2a5d.tar.gz | |
drm/dp: Add DP_HBLANK_EXPANSION_CAPABLE and DSC_PASSTHROUGH_EN DPCD flags
Add the DPCD flag to enable DSC passthrough in a last branch device,
used in a follow-up i915 patch.
Also add a flag to detect HBLANK expansion support in a branch device,
used by a workaround in a follow-up i915 patch.
Cc: Lyude Paul <lyude@redhat.com>
Cc: dri-devel@lists.freedesktop.org
Reviewed-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
Acked-by: Maxime Ripard <mripard@kernel.org>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231030155843.2251023-8-imre.deak@intel.com
Diffstat (limited to 'include/drm')
| -rw-r--r-- | include/drm/display/drm_dp.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/drm/display/drm_dp.h b/include/drm/display/drm_dp.h index e69cece404b3c..763d45a612f35 100644 --- a/include/drm/display/drm_dp.h +++ b/include/drm/display/drm_dp.h @@ -148,6 +148,7 @@ #define DP_RECEIVE_PORT_0_CAP_0 0x008 # define DP_LOCAL_EDID_PRESENT (1 << 1) # define DP_ASSOCIATED_TO_PRECEDING_PORT (1 << 2) +# define DP_HBLANK_EXPANSION_CAPABLE (1 << 3) #define DP_RECEIVE_PORT_0_BUFFER_SIZE 0x009 @@ -699,6 +700,7 @@ #define DP_DSC_ENABLE 0x160 /* DP 1.4 */ # define DP_DECOMPRESSION_EN (1 << 0) +# define DP_DSC_PASSTHROUGH_EN (1 << 1) #define DP_DSC_CONFIGURATION 0x161 /* DP 2.0 */ #define DP_PSR_EN_CFG 0x170 /* XXX 1.2? */ |