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| author | Hamza Mahfooz <hamza.mahfooz@amd.com> | 2022-08-04 21:06:55 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-08-17 01:14:32 +0300 |
| commit | 34f667634a0dcee26d9873ab1c819bdd6cdf485a (patch) | |
| tree | b2d18770bd25a8f46aa7632565797415f8dbc1af /include/drm | |
| parent | 33fa4f1df53076d0078be091d5a88d457de54936 (diff) | |
| download | linux-34f667634a0dcee26d9873ab1c819bdd6cdf485a.tar.xz | |
drm/dp_mst: add passthrough_aux to struct drm_dp_mst_port
Currently, there is no way to identify if DSC pass-through can be
enabled and what aux DSC pass-through requests ought to be sent to. So,
add a variable to struct drm_dp_mst_port that keeps track of the
aforementioned information.
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Hamza Mahfooz <hamza.mahfooz@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 | 1 | ||||
| -rw-r--r-- | include/drm/display/drm_dp_mst_helper.h | 3 |
2 files changed, 4 insertions, 0 deletions
diff --git a/include/drm/display/drm_dp.h b/include/drm/display/drm_dp.h index 9e3aff7e68bb..4d0abe4c7ea9 100644 --- a/include/drm/display/drm_dp.h +++ b/include/drm/display/drm_dp.h @@ -239,6 +239,7 @@ #define DP_DSC_SUPPORT 0x060 /* DP 1.4 */ # define DP_DSC_DECOMPRESSION_IS_SUPPORTED (1 << 0) +# define DP_DSC_PASSTHROUGH_IS_SUPPORTED (1 << 1) #define DP_DSC_REV 0x061 # define DP_DSC_MAJOR_MASK (0xf << 0) diff --git a/include/drm/display/drm_dp_mst_helper.h b/include/drm/display/drm_dp_mst_helper.h index 10adec068b7f..4a39c95f8afd 100644 --- a/include/drm/display/drm_dp_mst_helper.h +++ b/include/drm/display/drm_dp_mst_helper.h @@ -86,6 +86,8 @@ struct drm_dp_vcpi { * @next: link to next port on this branch device * @aux: i2c aux transport to talk to device connected to this port, protected * by &drm_dp_mst_topology_mgr.base.lock. + * @passthrough_aux: parent aux to which DSC pass-through requests should be + * sent, only set if DSC pass-through is possible. * @parent: branch device parent of this port * @vcpi: Virtual Channel Payload info for this port. * @connector: DRM connector this port is connected to. Protected by @@ -140,6 +142,7 @@ struct drm_dp_mst_port { */ struct drm_dp_mst_branch *mstb; struct drm_dp_aux aux; /* i2c bus for this port? */ + struct drm_dp_aux *passthrough_aux; struct drm_dp_mst_branch *parent; struct drm_dp_vcpi vcpi; |