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authorJouni Högander <jouni.hogander@intel.com>2023-05-30 13:16:49 +0300
committerJouni Högander <jouni.hogander@intel.com>2023-06-05 10:09:24 +0300
commitb29a20f7c4995a059ed764ce42389857426397c7 (patch)
tree1fde65d1b1686271b4e52b172930f25ecf916e22 /drivers
parent5a3c46b809d09f8ef59e2fbf2463b1c102aecbaa (diff)
downloadlinux-b29a20f7c4995a059ed764ce42389857426397c7.tar.xz
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: Jouni Högander <jouni.hogander@intel.com> Fixes: e1c71f8f9180 ("drm/i915: Fix fast wake AUX sync len") Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/8475 Reviewed-by: Luca Coelho <luciano.coelho@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230530101649.2549949-1-jouni.hogander@intel.com
Diffstat (limited to 'drivers')
-rw-r--r--drivers/gpu/drm/i915/display/intel_dp_aux.c2
1 files changed, 1 insertions, 1 deletions
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;