drm/amd/display: dpp clean up

Signed-off-by: Yue Hin Lau <Yuehin.Lau@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp_cm.c

@@ -49,6 +49,8 @@
 #define FN(reg_name, field_name) \
 	dpp->tf_shift->field_name, dpp->tf_mask->field_name
 
+#define NUM_ELEMENTS(a) (sizeof(a) / sizeof((a)[0]))
+
 struct dcn10_input_csc_matrix {
 	enum dc_color_space color_space;
 	uint16_t regval[12];
@@ -270,7 +272,7 @@ void dpp1_cm_set_output_csc_default(
 	struct dcn10_dpp *dpp = TO_DCN10_DPP(dpp_base);
 	struct out_csc_color_matrix tbl_entry;
 	int i, j;
-	int arr_size = sizeof(output_csc_matrix) / sizeof(struct output_csc_matrix);
+	int arr_size = NUM_ELEMENTS(output_csc_matrix);
 	uint32_t ocsc_mode = 4;
 
 	tbl_entry.color_space = colorspace;

drivers/gpu/drm/amd/display/dc/inc/hw/hw_shared.h

@@ -131,12 +131,7 @@ struct out_csc_color_matrix {
 	uint16_t regval[12];
 };
 
-struct output_csc_matrix {
-	enum dc_color_space color_space;
-	uint16_t regval[12];
-};
-
-static const struct output_csc_matrix output_csc_matrix[] = {
+static const struct out_csc_color_matrix output_csc_matrix[] = {
 	{ COLOR_SPACE_SRGB,
 		{ 0x2000, 0, 0, 0, 0, 0x2000, 0, 0, 0, 0, 0x2000, 0} },
 	{ COLOR_SPACE_SRGB_LIMITED,