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drm/dp: add drm_dp_tps3_supported helper

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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>
This commit is contained in:
Jani Nikula 2015-08-26 14:33:31 +03:00 committed by Daniel Vetter
parent 01302d4d17
commit 7cc53cf01e
1 changed files with 7 additions and 0 deletions
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7
include/drm/drm_dp_helper.h
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@ -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
*/