Add support of pack and unpack for target_rr_divider. --v2: - Set Target Refresh Rate Divider bit when related AS SDP bit is set (Ankit). --v3: - target_rr_divider is bools so set accordingly (Ankit). Signed-off-by: Mitul Golani <mitulkumar.ajitkumar.golani@xxxxxxxxx> Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@xxxxxxxxx> --- drivers/gpu/drm/i915/display/intel_dp.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index fd054e16850d..ac81b172b1ec 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -4232,6 +4232,9 @@ static ssize_t intel_dp_as_sdp_pack(const struct drm_dp_as_sdp *as_sdp, sdp->db[3] = as_sdp->target_rr & 0xFF; sdp->db[4] = (as_sdp->target_rr >> 8) & 0x3; + if (as_sdp->target_rr_divider) + sdp->db[4] |= 0x20; + return length; } @@ -4413,6 +4416,7 @@ int intel_dp_as_sdp_unpack(struct drm_dp_as_sdp *as_sdp, as_sdp->mode = sdp->db[0] & DP_ADAPTIVE_SYNC_SDP_OPERATION_MODE; as_sdp->vtotal = (sdp->db[2] << 8) | sdp->db[1]; as_sdp->target_rr = (u64)sdp->db[3] | ((u64)sdp->db[4] & 0x3); + as_sdp->target_rr_divider = sdp->db[4] & 0x20 ? true : false; return 0; } -- 2.25.1
