[PATCH] drm/i915/psr: Increase fast wake sync pulse count

Jouni Högander jouni.hogander at intel.com
Wed Apr 10 11:10:45 UTC 2024


Again increasing fast wake sync pulse count seems help on some glitches
with certain panels.

Signed-off-by: Jouni Högander <jouni.hogander at intel.com>
---
 drivers/gpu/drm/i915/display/intel_dp_aux.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/display/intel_dp_aux.c b/drivers/gpu/drm/i915/display/intel_dp_aux.c
index b8a53bb174da..75915522472c 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_aux.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_aux.c
@@ -150,7 +150,7 @@ int intel_dp_aux_fw_sync_len(void)
 	 * is fixing these problems with the panel. It is still within range
 	 * mentioned in eDP specification.
 	 */
-	int precharge = 12; /* 10-16 */
+	int precharge = 14; /* 10-16 */
 	int preamble = 8;
 
 	return precharge + preamble;
-- 
2.34.1



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