From: "Jouni Högander" <jouni.hogander@intel.com>
To: intel-gfx@lists.freedesktop.org
Subject: [Intel-gfx] [PATCH v3] drm/i915: Use 18 fast wake AUX sync len
Date: Tue, 30 May 2023 13:16:49 +0300 [thread overview]
Message-ID: <20230530101649.2549949-1-jouni.hogander@intel.com> (raw)
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.
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
---
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
next reply other threads:[~2023-05-30 10:17 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-30 10:16 Jouni Högander [this message]
2023-05-31 4:40 ` [Intel-gfx] ✓ Fi.CI.BAT: success for drm/i915: Use 18 fast wake AUX sync len (rev2) Patchwork
2023-06-01 10:42 ` [Intel-gfx] ✓ Fi.CI.IGT: " Patchwork
2023-06-02 8:40 ` [Intel-gfx] [PATCH v3] drm/i915: Use 18 fast wake AUX sync len Luca Coelho
2023-06-05 9:31 ` Hogander, Jouni
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