linux-kernel - Re: [PATCH v4 28/45] media: sun6i-csi: Get mbus code from bridge instead of storing it

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Message-ID: <2106792.Mh6RI2rZIc@jernej-laptop>
Date:   Wed, 27 Apr 2022 21:32:10 +0200
From:   Jernej Škrabec <jernej.skrabec@...il.com>
To:     linux-kernel@...r.kernel.org, linux-media@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-sunxi@...ts.linux.dev,
        Paul Kocialkowski <paul.kocialkowski@...tlin.com>
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>,
        Samuel Holland <samuel@...lland.org>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>
Subject: Re: [PATCH v4 28/45] media: sun6i-csi: Get mbus code from bridge instead of storing it

Dne petek, 15. april 2022 ob 17:27:54 CEST je Paul Kocialkowski napisal(a):
> 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>

Best regards,
Jernej

> ---
>  .../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
> c4e803a38851..e2070353f93f 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;
> @@ -1076,8 +1072,6 @@ 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_entity_remote_pad(link->sink->entity->pads)) {
>  		dev_info(csi_dev->dev, "capture node %s pad not 
connected\n",
>  			 vdev->name);
> @@ -1109,8 +1103,6 @@ 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,