[PATCH v3 3/6] drm/dp: Add macro to check max_downspread capability

Add a macro to check for the max_downspread capability in drm_dp_helper.

Signed-off-by: Sankeerth Billakanti quic_sbillaka@quicinc.com --- include/drm/drm_dp_helper.h | 6 ++++++ 1 file changed, 6 insertions(+)

diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h index afdf7f4..b39e7a0 100644 --- a/include/drm/drm_dp_helper.h +++ b/include/drm/drm_dp_helper.h @@ -1784,6 +1784,12 @@ drm_dp_tps3_supported(const u8 dpcd[DP_RECEIVER_CAP_SIZE]) }

static inline bool +drm_dp_max_downspread(const u8 dpcd[DP_RECEIVER_CAP_SIZE]) +{ + return dpcd[DP_MAX_DOWNSPREAD] & DP_MAX_DOWNSPREAD_0_5; +} + +static inline bool drm_dp_tps4_supported(const u8 dpcd[DP_RECEIVER_CAP_SIZE]) { return dpcd[DP_DPCD_REV] >= 0x14 &&