[PATCH v1 1/5] drm/mediatek: mtk_dpi: Use switch in mtk_dpi_config_color_format()

[AngeloGioacchino Del Regno]

In preparation for adding support for an additional color format,
convert the format conditional in mtk_dpi_config_color_format()
to a switch.
This also makes the concept of RGB being the default color format
a little more human readable.

This commit brings no functional differences.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno at collabora.com>
---
 drivers/gpu/drm/mediatek/mtk_dpi.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c
index 0fd13e6dd3f1..d735398e97f8 100644
--- a/drivers/gpu/drm/mediatek/mtk_dpi.c
+++ b/drivers/gpu/drm/mediatek/mtk_dpi.c
@@ -452,7 +452,8 @@ static void mtk_dpi_config_color_format(struct mtk_dpi *dpi,
 {
 	mtk_dpi_config_channel_swap(dpi, MTK_DPI_OUT_CHANNEL_SWAP_RGB);
 
-	if (format == MTK_DPI_COLOR_FORMAT_YCBCR_422) {
+	switch (format) {
+	case MTK_DPI_COLOR_FORMAT_YCBCR_422:
 		mtk_dpi_config_yuv422_enable(dpi, true);
 		mtk_dpi_config_csc_enable(dpi, true);
 
@@ -463,11 +464,14 @@ static void mtk_dpi_config_color_format(struct mtk_dpi *dpi,
 		mtk_dpi_mask(dpi, DPI_MATRIX_SET, dpi->mode.hdisplay <= 720 ?
 			     MATRIX_SEL_RGB_TO_BT601 : MATRIX_SEL_RGB_TO_JPEG,
 			     INT_MATRIX_SEL_MASK);
-	} else {
+		break;
+	default:
+	case MTK_DPI_COLOR_FORMAT_RGB:
 		mtk_dpi_config_yuv422_enable(dpi, false);
 		mtk_dpi_config_csc_enable(dpi, false);
 		if (dpi->conf->swap_input_support)
 			mtk_dpi_config_swap_input(dpi, false);
+		break;
 	}
 }
 
-- 
2.49.0