Increasing number of fast wake sync pulses seem to fix problems with certain PSR panels. This should be ok for other panels as well as the eDP specification allows 10...16 precharge pulses and we are still within that range.
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/9739 Signed-off-by: Jouni Högander <[email protected]> --- 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 7a5cfd77d43b..6e8ccaed0f9a 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_aux.c +++ b/drivers/gpu/drm/i915/display/intel_dp_aux.c @@ -145,7 +145,7 @@ static int intel_dp_aux_sync_len(void) u8 intel_dp_aux_fw_sync_len(void) { - u8 precharge = 10; /* 10-16 */ + u8 precharge = 12; /* 10-16 */ u8 preamble = 8; return precharge + preamble; -- 2.34.1
