This is a note to let you know that I've just added the patch titled
drm/radeon: reintroduce radeon_dp_work_func content
to the 6.3-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-radeon-reintroduce-radeon_dp_work_func-content.patch
and it can be found in the queue-6.3 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From a34fc1bcd2c4d8b09dcfc0b95ac65bca1e579bd7 Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@xxxxxxx>
Date: Thu, 18 May 2023 12:38:22 -0400
Subject: drm/radeon: reintroduce radeon_dp_work_func content
From: Alex Deucher <alexander.deucher@xxxxxxx>
commit a34fc1bcd2c4d8b09dcfc0b95ac65bca1e579bd7 upstream.
Put back the radeon_dp_work_func logic. It seems that
handling DP RX interrupts is necessary to make some
panels work. This was removed with the MST support,
but it regresses some systems so add it back. While
we are here, add the proper mutex locking.
Link: https://gitlab.freedesktop.org/drm/amd/-/issues/2567
Fixes: 01ad1d9c2888 ("drm/radeon: Drop legacy MST support")
Reviewed-by: Lyude Paul <lyude@xxxxxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Cc: Lyude Paul <lyude@xxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/radeon/radeon_irq_kms.c | 10 ++++++++++
1 file changed, 10 insertions(+)
--- a/drivers/gpu/drm/radeon/radeon_irq_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_irq_kms.c
@@ -99,6 +99,16 @@ static void radeon_hotplug_work_func(str
static void radeon_dp_work_func(struct work_struct *work)
{
+ struct radeon_device *rdev = container_of(work, struct radeon_device,
+ dp_work);
+ struct drm_device *dev = rdev->ddev;
+ struct drm_mode_config *mode_config = &dev->mode_config;
+ struct drm_connector *connector;
+
+ mutex_lock(&mode_config->mutex);
+ list_for_each_entry(connector, &mode_config->connector_list, head)
+ radeon_connector_hotplug(connector);
+ mutex_unlock(&mode_config->mutex);
}
/**
Patches currently in stable-queue which might be from alexander.deucher@xxxxxxx are
queue-6.3/drm-radeon-reintroduce-radeon_dp_work_func-content.patch
queue-6.3/drm-amd-display-have-payload-properly-created-after-resume.patch
queue-6.3/drm-amd-pm-fix-output-of-pp_od_clk_voltage.patch
queue-6.3/drm-amdgpu-don-t-enable-secure-display-on-incompatible-platforms.patch
queue-6.3/drm-amd-pm-add-missing-notifypowersource-message-mapping-for-smu13.0.7.patch
