amdgpu: fix some kernel-doc markup

Those are not today pulled by the sphinx doc, but better be ready.
Signed-off-by: Yann Dirson <ydirson@free.fr>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_device.c

@@ -551,11 +551,11 @@ void amdgpu_device_wreg(struct amdgpu_device *adev,
 	trace_amdgpu_device_wreg(adev->pdev->device, reg, v);
 }
 
-/*
+/**
  * amdgpu_mm_wreg_mmio_rlc -  write register either with mmio or with RLC path if in range
  *
  * this function is invoked only the debugfs register access
- * */
+ */
 void amdgpu_mm_wreg_mmio_rlc(struct amdgpu_device *adev,
 			     uint32_t reg, uint32_t v)
 {
@@ -1101,7 +1101,7 @@ static void amdgpu_device_wb_fini(struct amdgpu_device *adev)
 }
 
 /**
- * amdgpu_device_wb_init- Init Writeback driver info and allocate memory
+ * amdgpu_device_wb_init - Init Writeback driver info and allocate memory
  *
  * @adev: amdgpu_device pointer
  *

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c

@@ -624,7 +624,7 @@ static void dm_dcn_vertical_interrupt0_high_irq(void *interrupt_params)
 #endif /* CONFIG_DRM_AMD_SECURE_DISPLAY */
 
 /**
- * dmub_aux_setconfig_reply_callback - Callback for AUX or SET_CONFIG command.
+ * dmub_aux_setconfig_callback - Callback for AUX or SET_CONFIG command.
  * @adev: amdgpu_device pointer
  * @notify: dmub notification structure
  *

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h

@@ -50,9 +50,9 @@
 
 #define AMDGPU_DMUB_NOTIFICATION_MAX 5
 
-/**
+/*
  * DMUB Async to Sync Mechanism Status
- **/
+ */
 #define DMUB_ASYNC_TO_SYNC_ACCESS_FAIL 1
 #define DMUB_ASYNC_TO_SYNC_ACCESS_TIMEOUT 2
 #define DMUB_ASYNC_TO_SYNC_ACCESS_SUCCESS 3