drm/amd/display: Fix recent checkpatch errors in amdgpu_dm

 - Use tabs, not spaces.
 - Brace and parentheses placement

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Author: Harry Wentland

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

@@ -747,7 +747,7 @@ enum amdgpu_transfer_function {
 	AMDGPU_TRANSFER_FUNCTION_GAMMA22_INV_EOTF,
 	AMDGPU_TRANSFER_FUNCTION_GAMMA24_INV_EOTF,
 	AMDGPU_TRANSFER_FUNCTION_GAMMA26_INV_EOTF,
-        AMDGPU_TRANSFER_FUNCTION_COUNT
+	AMDGPU_TRANSFER_FUNCTION_COUNT
 };
 
 struct dm_plane_state {
@@ -844,7 +844,7 @@ struct dm_crtc_state {
 
 	int abm_level;
 
-        /**
+	/**
 	 * @regamma_tf:
 	 *
 	 * Pre-defined transfer function for converting internal FB -> wire

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

@@ -630,8 +630,7 @@ static int __set_input_tf(struct dc_color_caps *caps, struct dc_transfer_func *f
 static enum dc_transfer_func_predefined
 amdgpu_tf_to_dc_tf(enum amdgpu_transfer_function tf)
 {
-	switch (tf)
-	{
+	switch (tf) {
 	default:
 	case AMDGPU_TRANSFER_FUNCTION_DEFAULT:
 	case AMDGPU_TRANSFER_FUNCTION_IDENTITY:
@@ -1225,7 +1224,7 @@ int amdgpu_dm_update_plane_color_mgmt(struct dm_crtc_state *crtc,
 	 * plane and CRTC degamma at the same time. Explicitly reject atomic
 	 * updates when userspace sets both plane and CRTC degamma properties.
 	 */
-	if (has_crtc_cm_degamma && ret != -EINVAL){
+	if (has_crtc_cm_degamma && ret != -EINVAL) {
 		drm_dbg_kms(crtc->base.crtc->dev,
 			    "doesn't support plane and CRTC degamma at the same time\n");
 			return -EINVAL;

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

@@ -305,7 +305,7 @@ dm_crtc_additional_color_mgmt(struct drm_crtc *crtc)
 {
 	struct amdgpu_device *adev = drm_to_adev(crtc->dev);
 
-	if(adev->dm.dc->caps.color.mpc.ogam_ram)
+	if (adev->dm.dc->caps.color.mpc.ogam_ram)
 		drm_object_attach_property(&crtc->base,
 					   adev->mode_info.regamma_tf_property,
 					   AMDGPU_TRANSFER_FUNCTION_DEFAULT);