drivers: video: ov5640: add support to QVGA and QQVGA in CSI mode

The ov5640 driver already supports QVGA and QQVGA in dvp mode but not
in CSI mode. This PR adds support for these resolutions in CSI mode.

Signed-off-by: Caio Barz Molinari <caioheitor.barzmolinari_1@nxp.com>

Author: caiohbm

drivers/video/ov5640.c

@@ -466,7 +466,21 @@ static const struct ov5640_reg init_params_dvp[] = {
 	{0x3a15, 0xae},
 };
 
-static const struct ov5640_reg csi2_low_res_params[] = {
+static const struct ov5640_reg csi2_qqvga_res_params[] = {
+	{0x3800, 0x00}, {0x3801, 0x10}, {0x3802, 0x00}, {0x3803, 0x0E}, {0x3804, 0x0a},
+	{0x3805, 0x2f}, {0x3806, 0x07}, {0x3807, 0xa5}, {0x3808, 0x00}, {0x3809, 0xa0},
+	{0x380a, 0x00}, {0x380b, 0x78}, {0x380c, 0x06}, {0x380d, 0x40}, {0x380e, 0x03},
+	{0x380f, 0xe6}, {0x3810, 0x00}, {0x3811, 0x02}, {0x3812, 0x00}, {0x3813, 0x04},
+	{0x3814, 0x31}, {0x3815, 0x31}, {0x3824, 0x02}, {0x460c, 0x22}};
+
+static const struct ov5640_reg csi2_qvga_res_params[] = {
+	{0x3800, 0x00}, {0x3801, 0x10}, {0x3802, 0x00}, {0x3803, 0x0E}, {0x3804, 0x0a},
+	{0x3805, 0x2f}, {0x3806, 0x07}, {0x3807, 0xa5}, {0x3808, 0x01}, {0x3809, 0x40},
+	{0x380a, 0x00}, {0x380b, 0xf0}, {0x380c, 0x06}, {0x380d, 0x40}, {0x380e, 0x03},
+	{0x380f, 0xe8}, {0x3810, 0x00}, {0x3811, 0x02}, {0x3812, 0x00}, {0x3813, 0x04},
+	{0x3814, 0x31}, {0x3815, 0x31}, {0x3824, 0x02}, {0x460c, 0x22}};
+
+static const struct ov5640_reg csi2_vga_res_params[] = {
 	{0x3800, 0x00}, {0x3801, 0x00}, {0x3802, 0x00}, {0x3803, 0x04}, {0x3804, 0x0a},
 	{0x3805, 0x3f}, {0x3806, 0x07}, {0x3807, 0x9b}, {0x3808, 0x02}, {0x3809, 0x80},
 	{0x380a, 0x01}, {0x380b, 0xe0}, {0x380c, 0x07}, {0x380d, 0x68}, {0x380e, 0x03},
@@ -486,12 +500,36 @@ static const struct ov5640_mipi_frmrate_config mipi_hd_frmrate_params[] = {
 static const struct ov5640_mipi_frmrate_config mipi_vga_frmrate_params[] = {
 	{15, 0x22, 0x38, 24000000}, {30, 0x14, 0x38, 24000000}, {60, 0x14, 0x70, 48000000}};
 
+static const struct ov5640_mipi_frmrate_config mipi_qvga_frmrate_params[] = {
+	{15, 0x22, 0x30, 24000000}, {30, 0x14, 0x30, 24000000}, {60, 0x14, 0x60, 48000000}};
+
+static const struct ov5640_mipi_frmrate_config mipi_qqvga_frmrate_params[] = {
+	{15, 0x22, 0x30, 24000000}, {30, 0x14, 0x30, 24000000}, {60, 0x14, 0x60, 48000000}};
+
 static const struct ov5640_mode_config csi2_modes[] = {
+	{
+		.width = 160,
+		.height = 120,
+		.array_size_res_params = ARRAY_SIZE(csi2_qqvga_res_params),
+		.res_params = csi2_qqvga_res_params,
+		.mipi_frmrate_config = mipi_qqvga_frmrate_params,
+		.max_frmrate = OV5640_60_FPS,
+		.def_frmrate = OV5640_30_FPS,
+	},
+	{
+		.width = 320,
+		.height = 240,
+		.array_size_res_params = ARRAY_SIZE(csi2_qvga_res_params),
+		.res_params = csi2_qvga_res_params,
+		.mipi_frmrate_config = mipi_qvga_frmrate_params,
+		.max_frmrate = OV5640_60_FPS,
+		.def_frmrate = OV5640_30_FPS,
+	},
 	{
 		.width = 640,
 		.height = 480,
-		.array_size_res_params = ARRAY_SIZE(csi2_low_res_params),
-		.res_params = csi2_low_res_params,
+		.array_size_res_params = ARRAY_SIZE(csi2_vga_res_params),
+		.res_params = csi2_vga_res_params,
 		.mipi_frmrate_config = mipi_vga_frmrate_params,
 		.max_frmrate = OV5640_60_FPS,
 		.def_frmrate = OV5640_30_FPS,
@@ -575,6 +613,8 @@ static const struct video_format_cap csi2_fmts[] = {
 	OV5640_VIDEO_FORMAT_CAP(1280, 720, VIDEO_PIX_FMT_YUYV),
 	OV5640_VIDEO_FORMAT_CAP(640, 480, VIDEO_PIX_FMT_RGB565),
 	OV5640_VIDEO_FORMAT_CAP(640, 480, VIDEO_PIX_FMT_YUYV),
+	OV5640_VIDEO_FORMAT_CAP(320, 240, VIDEO_PIX_FMT_RGB565),
+	OV5640_VIDEO_FORMAT_CAP(160, 120, VIDEO_PIX_FMT_RGB565),
 	{0}};
 
 static const struct video_format_cap dvp_fmts[] = {