[Intel-gfx] [PATCH] drm/i915: Use 18 fast wake fast wake AUX sync len

[Jouni Högander]

HW default for wake sync pulses is 18. 10 precarge and 8 preamble. There is
no reason to change this especially as it is causing problems with certain
eDP panels.

Signed-off-by: Jouni Högander <jouni.hogander at intel.com>
Fixes: 605f7c731333 ("drm/i915: Fix fast wake AUX sync len")
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/8475
---
 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 0c27db8ae4f1..197c6e81db14 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_aux.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_aux.c
@@ -129,7 +129,7 @@ static int intel_dp_aux_sync_len(void)
 
 static int intel_dp_aux_fw_sync_len(void)
 {
-	int precharge = 16; /* 10-16 */
+	int precharge = 10; /* 10-16 */
 	int preamble = 8;
 
 	return precharge + preamble;
-- 
2.34.1