Commit 58704e6a authored by Jani Nikula's avatar Jani Nikula Committed by Dave Airlie

drm/dp: add helper for checking DP_ENHANCED_FRAME_CAP in DPCD

Signed-off-by: default avatarJani Nikula <jani.nikula@intel.com>
Reviewed-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent 0111be42
...@@ -390,4 +390,11 @@ drm_dp_max_lane_count(const u8 dpcd[DP_RECEIVER_CAP_SIZE]) ...@@ -390,4 +390,11 @@ drm_dp_max_lane_count(const u8 dpcd[DP_RECEIVER_CAP_SIZE])
return dpcd[DP_MAX_LANE_COUNT] & DP_MAX_LANE_COUNT_MASK; return dpcd[DP_MAX_LANE_COUNT] & DP_MAX_LANE_COUNT_MASK;
} }
static inline bool
drm_dp_enhanced_frame_cap(const u8 dpcd[DP_RECEIVER_CAP_SIZE])
{
return dpcd[DP_DPCD_REV] >= 0x11 &&
(dpcd[DP_MAX_LANE_COUNT] & DP_ENHANCED_FRAME_CAP);
}
#endif /* _DRM_DP_HELPER_H_ */ #endif /* _DRM_DP_HELPER_H_ */
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