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drm/amd/display: DPCD for Selective Update

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[Why&How]
Add flow to read selective update related info from DPCD,
and pass the info to DMUB.

Reviewed-by: Robin Chen <robin.chen@amd.com>
Reviewed-by: Wenjing Liu <wenjing.liu@amd.com>
Signed-off-by: Jack Chang <jack.chang@amd.com>
Signed-off-by: Matthew Stewart <matthew.stewart2@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Jack Chang
2025-12-04 16:57:47 +08:00
committed by Alex Deucher
parent ac1e65d8ad
commit a230696d4e
4 changed files with 97 additions and 4 deletions
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15
drivers/gpu/drm/amd/display/include/dpcd_defs.h
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@@ -37,6 +37,21 @@
#ifndef DP_PANEL_REPLAY_CAPABILITY // can remove this once the define gets into linux drm_dp_helper.h
#define DP_PANEL_REPLAY_CAPABILITY 0x0b1
#endif /* DP_PANEL_REPLAY_CAPABILITY */
#ifndef DP_PR_SU_X_GRANULARITY_LOW // can remove this once the define gets into linux drm_dp_helper.h
#define DP_PR_SU_X_GRANULARITY_LOW 0x0b2
#endif /* DP_PR_SU_X_GRANULARITY_LOW */
#ifndef DP_PR_SU_X_GRANULARITY_HIGH // can remove this once the define gets into linux drm_dp_helper.h
#define DP_PR_SU_X_GRANULARITY_HIGH 0x0b3
#endif /* DP_PR_SU_X_GRANULARITY_HIGH */
#ifndef DP_PR_SU_Y_GRANULARITY // can remove this once the define gets into linux drm_dp_helper.h
#define DP_PR_SU_Y_GRANULARITY 0x0b4
#endif /* DP_PR_SU_Y_GRANULARITY */
#ifndef DP_PR_SU_Y_GRANULARITY_EXTENDED_CAP_LOW // can remove this once the define gets into linux drm_dp_helper.h
#define DP_PR_SU_Y_GRANULARITY_EXTENDED_CAP_LOW 0x0b5
#endif /* DP_PR_SU_Y_GRANULARITY_EXTENDED_CAP_LOW */
#ifndef DP_PR_SU_Y_GRANULARITY_EXTENDED_CAP_HIGH // can remove this once the define gets into linux drm_dp_helper.h
#define DP_PR_SU_Y_GRANULARITY_EXTENDED_CAP_HIGH 0x0b6
#endif /* DP_PR_SU_Y_GRANULARITY_EXTENDED_CAP_HIGH */
#ifndef DP_PANEL_REPLAY_ENABLE_AND_CONFIGURATION_1 // can remove this once the define gets into linux drm_dp_helper.h
#define DP_PANEL_REPLAY_ENABLE_AND_CONFIGURATION_1 0x1b0
#endif /* DP_PANEL_REPLAY_ENABLE_AND_CONFIGURATION_1 */