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authorJani Nikula <jani.nikula@intel.com>2015-08-26 14:33:31 +0300
committerDaniel Vetter <daniel.vetter@ffwll.ch>2015-09-01 11:18:50 +0200
commit7cc53cf01e61bd1a774d2ba492bbe3e93e58ca79 (patch)
treee838a8a5c7e03665386d2a34e230c5d7d43778b8 /include/drm/drm_dp_helper.h
parent01302d4d17ed524e7d855f5fbbac5822f14f9c5e (diff)
drm/dp: add drm_dp_tps3_supported helper
Cc: Thierry Reding <thierry.reding@gmail.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'include/drm/drm_dp_helper.h')
-rw-r--r--include/drm/drm_dp_helper.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index 94898f6ea02a..6aa59b9c7335 100644
--- a/include/drm/drm_dp_helper.h
+++ b/include/drm/drm_dp_helper.h
@@ -633,6 +633,13 @@ drm_dp_enhanced_frame_cap(const u8 dpcd[DP_RECEIVER_CAP_SIZE])
(dpcd[DP_MAX_LANE_COUNT] & DP_ENHANCED_FRAME_CAP);
}
+static inline bool
+drm_dp_tps3_supported(const u8 dpcd[DP_RECEIVER_CAP_SIZE])
+{
+ return dpcd[DP_DPCD_REV] >= 0x12 &&
+ dpcd[DP_MAX_LANE_COUNT] & DP_TPS3_SUPPORTED;
+}
+
/*
* DisplayPort AUX channel
*/

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