[PATCH v6 42/45] drm/amd: Use `amdgpu_ucode_*` helpers for DMCU

[Mario Limonciello]

The `amdgpu_ucode_request` helper will ensure that the return code for
missing firmware is -ENODEV so that early_init can fail.

The `amdgpu_ucode_release` helper is for symmetry on unloading.

Reviewed-by: Alex Deucher <alexander.deuc...@amd.com>
Signed-off-by: Mario Limonciello <mario.limoncie...@amd.com>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 11 ++---------
 1 file changed, 2 insertions(+), 9 deletions(-)

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 61c192ead62f..79c4652e8e40 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -1881,20 +1881,13 @@ static int load_dmcu_fw(struct amdgpu_device *adev)
                return 0;
        }
 
-       r = request_firmware_direct(&adev->dm.fw_dmcu, fw_name_dmcu, adev->dev);
-       if (r == -ENOENT) {
+       r = amdgpu_ucode_request(adev, &adev->dm.fw_dmcu, fw_name_dmcu);
+       if (r == -ENODEV) {
                /* DMCU firmware is not necessary, so don't raise a fuss if 
it's missing */
                DRM_DEBUG_KMS("dm: DMCU firmware not found\n");
                adev->dm.fw_dmcu = NULL;
                return 0;
        }
-       if (r) {
-               dev_err(adev->dev, "amdgpu_dm: Can't load firmware \"%s\"\n",
-                       fw_name_dmcu);
-               return r;
-       }
-
-       r = amdgpu_ucode_validate(adev->dm.fw_dmcu);
        if (r) {
                dev_err(adev->dev, "amdgpu_dm: Can't validate firmware 
\"%s\"\n",
                        fw_name_dmcu);
-- 
2.34.1