This is a note to let you know that I've just added the patch titled
drm/amd/display: Return max resolution supported by DWB
to the 6.8-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-display-return-max-resolution-supported-by-dwb.patch
and it can be found in the queue-6.8 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 2cc69a10d83180f3de9f5afe3a98e972b1453d4c Mon Sep 17 00:00:00 2001
From: Alex Hung <alex.hung@xxxxxxx>
Date: Sat, 23 Mar 2024 12:02:54 -0600
Subject: drm/amd/display: Return max resolution supported by DWB
From: Alex Hung <alex.hung@xxxxxxx>
commit 2cc69a10d83180f3de9f5afe3a98e972b1453d4c upstream.
mode_config's max width x height is 4096x2160 and is higher than DWB's
max resolution 3840x2160 which is returned instead.
Cc: stable@xxxxxxxxxxxxxxx
Reviewed-by: Harry Wentland <harry.wentland@xxxxxxx>
Acked-by: Hamza Mahfooz <hamza.mahfooz@xxxxxxx>
Signed-off-by: Alex Hung <alex.hung@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_wb.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_wb.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_wb.c
@@ -76,10 +76,8 @@ static int amdgpu_dm_wb_encoder_atomic_c
static int amdgpu_dm_wb_connector_get_modes(struct drm_connector *connector)
{
- struct drm_device *dev = connector->dev;
-
- return drm_add_modes_noedid(connector, dev->mode_config.max_width,
- dev->mode_config.max_height);
+ /* Maximum resolution supported by DWB */
+ return drm_add_modes_noedid(connector, 3840, 2160);
}
static int amdgpu_dm_wb_prepare_job(struct drm_writeback_connector *wb_connector,
Patches currently in stable-queue which might be from alex.hung@xxxxxxx are
queue-6.8/drm-amd-display-return-max-resolution-supported-by-dwb.patch
