Commit b29a20f7 authored by Jouni Högander's avatar Jouni Högander
Browse files

drm/i915: Use 18 fast wake AUX sync len 



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

v3: Change "Fixes:" commit
v2: Remove "fast wake" repeat from subject

Signed-off-by: default avatarJouni Högander <jouni.hogander@intel.com>
Fixes: e1c71f8f ("drm/i915: Fix fast wake AUX sync len")
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/8475


Reviewed-by: default avatarLuca Coelho <luciano.coelho@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230530101649.2549949-1-jouni.hogander@intel.com
parent 5a3c46b8

drivers/gpu/drm/i915/display/intel_dp_aux.c

+1 −1
Original line number Diff line number Diff line
@@ -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;