From ae59e633b52cccf5761ac3012378fec2480c49aa Mon Sep 17 00:00:00 2001 From: vathsala nagaraju <vathsala.nagaraju@intel.com> Date: Tue, 26 Sep 2017 15:29:12 +0530 Subject: [PATCH] drm/dp: Add defines for latency in sink Add defines for dpcd register 2009 (synchronization latency in sink). v2: - add spec version (Daniel) - use register name as is in spec,only drop excess from end (jani) - add the full register contents (jani) [Rodrigo fixed spec version when merging] Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> CC: Puthikorn Voravootivat <puthik@chromium.org> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by: Vathsala Nagaraju <vathsala.nagaraju@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/1506419953-32605-1-git-send-email-vathsala.nagaraju@intel.com Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.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 11c39f15f1b3..8b9ac321c3bd 100644 --- a/include/drm/drm_dp_helper.h +++ b/include/drm/drm_dp_helper.h @@ -735,6 +735,12 @@ # define DP_PSR_SINK_INTERNAL_ERROR 7 # define DP_PSR_SINK_STATE_MASK 0x07 +#define DP_SYNCHRONIZATION_LATENCY_IN_SINK 0x2009 /* edp 1.4 */ +# define DP_MAX_RESYNC_FRAME_COUNT_MASK (0xf << 0) +# define DP_MAX_RESYNC_FRAME_COUNT_SHIFT 0 +# define DP_LAST_ACTUAL_SYNCHRONIZATION_LATENCY_MASK (0xf << 4) +# define DP_LAST_ACTUAL_SYNCHRONIZATION_LATENCY_SHIFT 4 + #define DP_RECEIVER_ALPM_STATUS 0x200b /* eDP 1.4 */ # define DP_ALPM_LOCK_TIMEOUT_ERROR (1 << 0) -- GitLab