[PATCH 1/3] drm/dp: add drm_dp_tps3_supported helper

Cc: Thierry Reding thierry.reding@gmail.com Signed-off-by: Jani Nikula jani.nikula@intel.com --- include/drm/drm_dp_helper.h | 7 +++++++ 1 file changed, 7 insertions(+)

diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h index 499e9f625aef..8c52d0ef1fc9 100644 --- a/include/drm/drm_dp_helper.h +++ b/include/drm/drm_dp_helper.h @@ -634,6 +634,13 @@ 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 */