On Monday 25 September 2017 01:53 PM, Jani Nikula wrote:
On Sat, 23 Sep 2017, vathsala nagaraju <vathsala.nagar...@intel.com> wrote:
Add defines for dpcd register 2009 (synchronization latency
in sink).
Cc: Rodrigo Vivi <rodrigo.v...@intel.com>
CC: Puthikorn Voravootivat <put...@chromium.org>
Reviewed-by: Rodrigo Vivi <rodrigo.v...@intel.com>
Signed-off-by: Vathsala Nagaraju <vathsala.nagar...@intel.com>
---
include/drm/drm_dp_helper.h | 3 +++
1 file changed, 3 insertions(+)
diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index 11c39f1..846004e6 100644
--- a/include/drm/drm_dp_helper.h
+++ b/include/drm/drm_dp_helper.h
@@ -735,6 +735,9 @@
# define DP_PSR_SINK_INTERNAL_ERROR 7
# define DP_PSR_SINK_STATE_MASK 0x07
+#define DP_SINK_SYNCHRONIZATION_LATENCY 0x2009
+# define DP_MAX_RESYNC_FRAME_CNT_MASK 0xf
For the DP spec, please don't invent the names, use the ones from the
spec. At most drop excess stuff from the end.
In edp 1.4b spec , the register name 2009 is "DEBUG 0 SYNCHRONIZATION
LATENCY SINK " and bit 0:3 "MAX RE-SYNC FRAME COUNT"
#define DP_SYNCHRONIZATION_LATENCY_IN_SINK
# define DP_MAX_RESYNC_FRAME_COUNT_SHIFT
# define DP_MAX_RESYNC_FRAME_COUNT_MASK
And while at it, please add the full register contents.
BR,
Jani.
+
#define DP_RECEIVER_ALPM_STATUS 0x200b /* eDP 1.4 */
# define DP_ALPM_LOCK_TIMEOUT_ERROR (1 << 0)
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