6.12-stable review patch. If anyone has any objections, please let me know.
------------------
From: Alex Deucher alexander.deucher@amd.com
Commit 73dae652dcac ("drm/amdgpu: rework resume handling for display (v2)") missed a small code change when it was backported resulting in an automatic backlight control breakage. Fix the backport.
Note that this patch is not in Linus' tree as it is not required there; the bug was introduced in the backport.
Fixes: 99a02eab8251 ("drm/amdgpu: rework resume handling for display (v2)") Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3853 Signed-off-by: Alex Deucher alexander.deucher@amd.com Cc: stable@vger.kernel.org # 6.11.x Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -3721,8 +3721,12 @@ static int amdgpu_device_ip_resume_phase continue; if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_DCE) { r = adev->ip_blocks[i].version->funcs->resume(adev); - if (r) + if (r) { + DRM_ERROR("resume of IP block <%s> failed %d\n", + adev->ip_blocks[i].version->funcs->name, r); return r; + } + adev->ip_blocks[i].status.hw = true; } }