linux-kernel - [PATCH v7 13/28] media: sun6i-csi: Get mbus code from bridge instead of storing it

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Date:   Thu,  3 Nov 2022 17:30:58 +0100
From:   Paul Kocialkowski <paul.kocialkowski@...tlin.com>
To:     linux-kernel@...r.kernel.org, linux-media@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-sunxi@...ts.linux.dev
Cc:     Yong Deng <yong.deng@...ewell.com>,
        Paul Kocialkowski <paul.kocialkowski@...tlin.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Chen-Yu Tsai <wens@...e.org>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        Samuel Holland <samuel@...lland.org>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>
Subject: [PATCH v7 13/28] media: sun6i-csi: Get mbus code from bridge instead of storing it

Another instance of removing a duplicated variable and using common
helpers instead.

Signed-off-by: Paul Kocialkowski <paul.kocialkowski@...tlin.com>
Acked-by: Jernej Skrabec <jernej.skrabec@...il.com>
---
 .../sunxi/sun6i-csi/sun6i_csi_capture.c        | 18 +++++-------------
 .../sunxi/sun6i-csi/sun6i_csi_capture.h        |  1 -
 2 files changed, 5 insertions(+), 14 deletions(-)

diff --git a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.c b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.c
index 45b2f4480127..3577a3d747c1 100644
--- a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.c
+++ b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.c
@@ -17,6 +17,7 @@
 #include <media/videobuf2-v4l2.h>
 
 #include "sun6i_csi.h"
+#include "sun6i_csi_bridge.h"
 #include "sun6i_csi_capture.h"
 #include "sun6i_csi_reg.h"
 
@@ -455,20 +456,20 @@ sun6i_csi_capture_configure_interface(struct sun6i_csi_device *csi_dev)
 
 static void sun6i_csi_capture_configure_format(struct sun6i_csi_device *csi_dev)
 {
-	struct sun6i_csi_capture *capture = &csi_dev->capture;
-	u32 pixelformat, field;
+	u32 mbus_code, pixelformat, field;
 	u32 cfg = 0;
 	u32 val;
 
 	sun6i_csi_capture_format(csi_dev, &pixelformat, &field);
+	sun6i_csi_bridge_format(csi_dev, &mbus_code, NULL);
 
-	val = get_csi_input_format(csi_dev, capture->mbus_code, pixelformat);
+	val = get_csi_input_format(csi_dev, mbus_code, pixelformat);
 	cfg |= SUN6I_CSI_CH_CFG_INPUT_FMT(val);
 
 	val = get_csi_output_format(csi_dev, pixelformat, field);
 	cfg |= SUN6I_CSI_CH_CFG_OUTPUT_FMT(val);
 
-	val = get_csi_input_seq(csi_dev, capture->mbus_code, pixelformat);
+	val = get_csi_input_seq(csi_dev, mbus_code, pixelformat);
 	cfg |= SUN6I_CSI_CH_CFG_INPUT_YUV_SEQ(val);
 
 	if (field == V4L2_FIELD_TOP)
@@ -739,11 +740,6 @@ static int sun6i_csi_capture_start_streaming(struct vb2_queue *queue,
 	if (ret < 0)
 		goto error_state;
 
-	if (capture->mbus_code == 0) {
-		ret = -EINVAL;
-		goto error_media_pipeline;
-	}
-
 	subdev = sun6i_csi_capture_remote_subdev(capture, NULL);
 	if (!subdev) {
 		ret = -EINVAL;
@@ -1072,8 +1068,6 @@ static int sun6i_csi_capture_link_validate(struct media_link *link)
 	struct v4l2_subdev_format source_fmt;
 	int ret;
 
-	capture->mbus_code = 0;
-
 	if (!media_pad_remote_pad_first(link->sink->entity->pads)) {
 		dev_info(csi_dev->dev, "capture node %s pad not connected\n",
 			 vdev->name);
@@ -1105,8 +1099,6 @@ static int sun6i_csi_capture_link_validate(struct media_link *link)
 		return -EPIPE;
 	}
 
-	capture->mbus_code = source_fmt.format.code;
-
 	return 0;
 }
 
diff --git a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.h b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.h
index 02bdf45f7ca5..3b9759e1563d 100644
--- a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.h
+++ b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.h
@@ -39,7 +39,6 @@ struct sun6i_csi_capture {
 	struct media_pad		pad;
 
 	struct v4l2_format		format;
-	u32				mbus_code;
 };
 
 void sun6i_csi_capture_dimensions(struct sun6i_csi_device *csi_dev,
-- 
2.38.1