media: staging: rkisp1: don't support bayer format on selfpath resizer

The selfpath capture does not support bayer formats.
Therefore there is no reason to support bayer formats
on the selfpath resizer. The selfpath resizer should
support only MEDIA_BUS_FMT_YUYV8_2X8.
Signed-off-by: NDafna Hirschfeld <dafna.hirschfeld@collabora.com>
Acked-by: NHelen Koike <helen.koike@collabora.com>
Signed-off-by: NHans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: NMauro Carvalho Chehab <mchehab+huawei@kernel.org>

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

@@ -1176,13 +1176,6 @@ static int rkisp1_capture_link_validate(struct media_link *link)
 	struct v4l2_subdev_format sd_fmt;
 	int ret;
 
-	if (cap->id == RKISP1_SELFPATH &&
-	    isp->src_fmt->mbus_code != MEDIA_BUS_FMT_YUYV8_2X8) {
-		dev_err(cap->rkisp1->dev,
-			"selfpath only supports MEDIA_BUS_FMT_YUYV8_2X8\n");
-		return -EPIPE;
-	}
-
 	if (cap_pix_enc != isp_pix_enc &&
 	    !(isp_pix_enc == V4L2_PIXEL_ENC_YUV &&
 	      cap_pix_enc == V4L2_PIXEL_ENC_RGB)) {

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

@@ -437,6 +437,13 @@ static int rkisp1_rsz_enum_mbus_code(struct v4l2_subdev *sd,
 	u32 pad = code->pad;
 	int ret;
 
+	if (rsz->id == RKISP1_SELFPATH) {
+		if (code->index > 0)
+			return -EINVAL;
+		code->code = MEDIA_BUS_FMT_YUYV8_2X8;
+		return 0;
+	}
+
 	/* supported mbus codes are the same in isp video src pad */
 	code->pad = RKISP1_ISP_PAD_SOURCE_VIDEO;
 	ret = v4l2_subdev_call(&rsz->rkisp1->isp.sd, pad, enum_mbus_code,
@@ -541,7 +548,11 @@ static void rkisp1_rsz_set_sink_fmt(struct rkisp1_resizer *rsz,
 	src_fmt = rkisp1_rsz_get_pad_fmt(rsz, cfg, RKISP1_RSZ_PAD_SRC, which);
 	sink_crop = rkisp1_rsz_get_pad_crop(rsz, cfg, RKISP1_RSZ_PAD_SINK,
 					    which);
-	sink_fmt->code = format->code;
+	if (rsz->id == RKISP1_SELFPATH)
+		sink_fmt->code = MEDIA_BUS_FMT_YUYV8_2X8;
+	else
+		sink_fmt->code = format->code;
+
 	mbus_info = rkisp1_isp_mbus_info_get(sink_fmt->code);
 	if (!mbus_info || !(mbus_info->direction & RKISP1_ISP_SD_SRC)) {
 		sink_fmt->code = RKISP1_DEF_FMT;