This is a note to let you know that I've just added the patch titled
drm/amd: Disable PSR-SU on Parade 0803 TCON
to the 6.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-amd-disable-psr-su-on-parade-0803-tcon.patch
and it can be found in the queue-6.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 072030b1783056b5de8b0fac5303a5e9dbc6cfde Mon Sep 17 00:00:00 2001
From: Mario Limonciello <mario.limonciello@xxxxxxx>
Date: Mon, 19 Jun 2023 15:04:24 -0500
Subject: drm/amd: Disable PSR-SU on Parade 0803 TCON
From: Mario Limonciello <mario.limonciello@xxxxxxx>
commit 072030b1783056b5de8b0fac5303a5e9dbc6cfde upstream.
A number of users have reported that there are random hangs occurring
caused by PSR-SU specifically on panels that contain the parade 0803
TCON. Users have been able to work around the issue by disabling PSR
entirely.
To avoid these hangs, disable PSR-SU when this TCON is found.
Cc: stable@xxxxxxxxxxxxxxx
Cc: Sean Wang <sean.ns.wang@xxxxxxx>
Cc: Marc Rossi <Marc.Rossi@xxxxxxx>
Cc: Hamza Mahfooz <Hamza.Mahfooz@xxxxxxx>
Suggested-by: Tsung-hua (Ryan) Lin <Tsung-hua.Lin@xxxxxxx>
Link: https://gitlab.freedesktop.org/drm/amd/-/issues/2443
Signed-off-by: Mario Limonciello <mario.limonciello@xxxxxxx>
Reviewed-by: Hamza Mahfooz <hamza.mahfooz@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/amd/display/modules/power/power_helpers.c | 2 ++
1 file changed, 2 insertions(+)
--- a/drivers/gpu/drm/amd/display/modules/power/power_helpers.c
+++ b/drivers/gpu/drm/amd/display/modules/power/power_helpers.c
@@ -818,6 +818,8 @@ bool is_psr_su_specific_panel(struct dc_
((dpcd_caps->sink_dev_id_str[1] == 0x08 && dpcd_caps->sink_dev_id_str[0] == 0x08) ||
(dpcd_caps->sink_dev_id_str[1] == 0x08 && dpcd_caps->sink_dev_id_str[0] == 0x07)))
isPSRSUSupported = false;
+ else if (dpcd_caps->sink_dev_id_str[1] == 0x08 && dpcd_caps->sink_dev_id_str[0] == 0x03)
+ isPSRSUSupported = false;
else if (dpcd_caps->psr_info.force_psrsu_cap == 0x1)
isPSRSUSupported = true;
}
Patches currently in stable-queue which might be from mario.limonciello@xxxxxxx are
queue-6.4/pinctrl-amd-detect-internal-gpio0-debounce-handling.patch
queue-6.4/drm-amd-display-fix-seamless-odm-transitions.patch
queue-6.4/drm-amd-display-edp-do-not-add-non-edid-timings.patch
queue-6.4/pinctrl-amd-only-use-special-debounce-behavior-for-gpio-0.patch
queue-6.4/pinctrl-amd-revert-pinctrl-amd-disable-and-mask-interrupts-on-probe.patch
queue-6.4/pinctrl-amd-detect-and-mask-spurious-interrupts.patch
queue-6.4/pinctrl-amd-drop-pull-up-select-configuration.patch
queue-6.4/pinctrl-amd-fix-mistake-in-handling-clearing-pins-at-startup.patch
queue-6.4/drm-amd-disable-psr-su-on-parade-0803-tcon.patch
queue-6.4/drm-amd-display-correct-dmub_fw_version-macro.patch
queue-6.4/pinctrl-amd-use-amd_pinconf_set-for-all-config-options.patch
queue-6.4/pinctrl-amd-unify-debounce-handling-into-amd_pinconf_set.patch
queue-6.4/drm-client-send-hotplug-event-after-registering-a-client.patch
queue-6.4/drm-amd-align-smu11-smu_msg_overridepcieparameters-implementation-with-smu13.patch
