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[AMD Public Use]
Acked-by: Alex Deucher <alexander.deucher@xxxxxxx>
From: Aaron Ma <aaron.ma@xxxxxxxxxxxxx>
Sent: Wednesday, July 8, 2020 4:16 AM To: Wentland, Harry <Harry.Wentland@xxxxxxx>; Li, Sun peng (Leo) <Sunpeng.Li@xxxxxxx>; Deucher, Alexander <Alexander.Deucher@xxxxxxx>; Koenig, Christian <Christian.Koenig@xxxxxxx>; airlied@xxxxxxxx <airlied@xxxxxxxx>; daniel@xxxxxxxx <daniel@xxxxxxxx>; amd-gfx@xxxxxxxxxxxxxxxxxxxxx <amd-gfx@xxxxxxxxxxxxxxxxxxxxx>; dri-devel@xxxxxxxxxxxxxxxxxxxxx <dri-devel@xxxxxxxxxxxxxxxxxxxxx>; linux-kernel@xxxxxxxxxxxxxxx <linux-kernel@xxxxxxxxxxxxxxx>; mapengyu@xxxxxxxxx <mapengyu@xxxxxxxxx>; aaron.ma@xxxxxxxxxxxxx <aaron.ma@xxxxxxxxxxxxx> Subject: [PATCH] drm/amd/display: add dmcub check on RENOIR RENOIR loads dmub fw not dmcu, check dmcu only will prevent loading iram,
it breaks backlight control. Bug: https://nam11.safelinks.protection.outlook.com/?url=""> Signed-off-by: Aaron Ma <aaron.ma@xxxxxxxxxxxxx> --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index 10ac8076d4f2..db5e0bb0d935 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -1358,7 +1358,7 @@ static int dm_late_init(void *handle) struct dmcu *dmcu = NULL; bool ret; - if (!adev->dm.fw_dmcu) + if (!adev->dm.fw_dmcu && !adev->dm.dmub_fw) return detect_mst_link_for_all_connectors(adev->ddev); dmcu = adev->dm.dc->res_pool->dmcu; -- 2.25.1 |
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