media: staging: rkisp1: replace 3 fields 'ct_offset_*' with one array

The struct rkisp1_cif_isp_ctk_config contains 3 fields
ct_offset_{rgb}. Replace them with one array field 'ct_offset[3].
Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
Acked-by: Helen Koike <helen.koike@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

drivers/staging/media/rkisp1/rkisp1-params.c

@@ -408,12 +408,9 @@ static void rkisp1_ctk_config(struct rkisp1_params *params,
 		for (j = 0; j < 3; j++)
 			rkisp1_write(params->rkisp1, arg->coeff[i][j],
 				     RKISP1_CIF_ISP_CT_COEFF_0 + 4 * k++);
-	rkisp1_write(params->rkisp1, arg->ct_offset_r,
-		     RKISP1_CIF_ISP_CT_OFFSET_R);
-	rkisp1_write(params->rkisp1, arg->ct_offset_g,
-		     RKISP1_CIF_ISP_CT_OFFSET_G);
-	rkisp1_write(params->rkisp1, arg->ct_offset_b,
-		     RKISP1_CIF_ISP_CT_OFFSET_B);
+	for (i = 0; i < 3; i++)
+		rkisp1_write(params->rkisp1, arg->ct_offset[i],
+			     RKISP1_CIF_ISP_CT_OFFSET_R + i * 4);
 }
 
 static void rkisp1_ctk_enable(struct rkisp1_params *params, bool en)

drivers/staging/media/rkisp1/uapi/rkisp1-config.h

@@ -420,13 +420,11 @@ struct rkisp1_cif_isp_bdm_config {
  * @coeff: color correction matrix. Values are 11-bit signed fixed-point numbers with 4 bit integer
  *		and 7 bit fractional part, ranging from -8 (0x400) to +7.992 (0x3FF). 0 is
  *		represented by 0x000 and a coefficient value of 1 as 0x080.
- * @ct_offset_b: offset for the crosstalk correction matrix
+ * @ct_offset: Red, Green, Blue offsets for the crosstalk correction matrix
  */
 struct rkisp1_cif_isp_ctk_config {
 	__u16 coeff[3][3];
-	__u16 ct_offset_r;
-	__u16 ct_offset_g;
-	__u16 ct_offset_b;
+	__u16 ct_offset[3];
 } __packed;
 
 enum rkisp1_cif_isp_goc_mode {