linux-kernel - [PATCH 03/14] [media] mtk-mipicsi: add color format support for mt2712

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Date:   Mon, 8 Apr 2019 19:54:54 +0800
From:   Stu Hsieh <stu.hsieh@...iatek.com>
To:     Mauro Carvalho Chehab <mchehab@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>
CC:     Stu Hsieh <stu.hsieh@...iatek.com>, <linux-kernel@...r.kernel.org>,
        <linux-media@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>, <srv_heupstream@...iatek.com>
Subject: [PATCH 03/14] [media] mtk-mipicsi: add color format support for mt2712

This patch add color format support for mt2712

Signed-off-by: Stu Hsieh <stu.hsieh@...iatek.com>
---
 .../media/platform/mtk-mipicsi/mtk_mipicsi.c  | 25 +++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/drivers/media/platform/mtk-mipicsi/mtk_mipicsi.c b/drivers/media/platform/mtk-mipicsi/mtk_mipicsi.c
index a5ed720df900..ccf2d18a3e74 100644
--- a/drivers/media/platform/mtk-mipicsi/mtk_mipicsi.c
+++ b/drivers/media/platform/mtk-mipicsi/mtk_mipicsi.c
@@ -139,6 +139,25 @@ static void mtk_mipicsi_remove_device(struct soc_camera_device *icd)
 	(void)pm_runtime_put_sync(icd->parent);
 }
 
+static bool is_supported(struct soc_camera_device *icd, const u32 pixformat)
+{
+	bool ret = false;
+
+	switch (pixformat) {
+	/* YUV422 */
+	case V4L2_PIX_FMT_YUYV:
+	case V4L2_PIX_FMT_UYVY:
+	case V4L2_PIX_FMT_YVYU:
+	case V4L2_PIX_FMT_VYUY:
+		ret = true;
+		break;
+	default:
+		break;
+	}
+
+	return ret;
+}
+
 static int mtk_mipicsi_set_fmt(struct soc_camera_device *icd,
 				struct v4l2_format *f)
 {
@@ -154,6 +173,12 @@ static int mtk_mipicsi_set_fmt(struct soc_camera_device *icd,
 	struct v4l2_mbus_framefmt *mf = &format.format;
 	int ret = 0;
 
+	if (!is_supported(icd, pix->pixelformat)) {
+		dev_err(dev, "Format %x not support. set V4L2_PIX_FMT_YUYV as default\n",
+			pix->pixelformat);
+		pix->pixelformat = V4L2_PIX_FMT_YUYV;
+	}
+
 	xlate = soc_camera_xlate_by_fourcc(icd, pix->pixelformat);
 	if (xlate == NULL) {
 		dev_err(dev, "Format 0x%x not found\n", pix->pixelformat);
-- 
2.18.0