Re: [PATCH 04/11] media: exynos4-is: Correct missing entity function initialization

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Hi Jonathan,

On Sat, Apr 25, 2020 at 07:26:43PM -0700, Jonathan Bakker wrote:
> Commit bae4500399c4 ("[media] exynos4-is: Add missing entity function
> initialization") tried to suppress the warnings such as
> 
> s5p-fimc-md camera: Entity type for entity FIMC.0 was not initialized!
> 
> However, this didn't work in all cases.  Correct this by calling the set
> function earlier.
> 
> Fixes: bae4500399c4 ("exynos4-is: Add missing entity function initialization")
> Signed-off-by: Jonathan Bakker <xc-racer2@xxxxxxx>
> ---
>  drivers/media/platform/exynos4-is/fimc-capture.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 

Thank you for the patch. Please see my comments inline.

> diff --git a/drivers/media/platform/exynos4-is/fimc-capture.c b/drivers/media/platform/exynos4-is/fimc-capture.c
> index 705f182330ca..86c233e2f2c9 100644
> --- a/drivers/media/platform/exynos4-is/fimc-capture.c
> +++ b/drivers/media/platform/exynos4-is/fimc-capture.c
> @@ -1799,7 +1799,6 @@ static int fimc_register_capture_device(struct fimc_dev *fimc,
>  	vid_cap->wb_fmt.code = fmt->mbus_code;
>  
>  	vid_cap->vd_pad.flags = MEDIA_PAD_FL_SINK;
> -	vfd->entity.function = MEDIA_ENT_F_PROC_VIDEO_SCALER;

Isn't vfd->entity above a different entity than sd->entity below? If so,
this line must stay.

>  	ret = media_entity_pads_init(&vfd->entity, 1, &vid_cap->vd_pad);
>  	if (ret)
>  		goto err_free_ctx;
> @@ -1898,6 +1897,7 @@ int fimc_initialize_capture_subdev(struct fimc_dev *fimc)
>  		return ret;
>  
>  	sd->entity.ops = &fimc_sd_media_ops;
> +	sd->entity.function = MEDIA_ENT_F_PROC_VIDEO_SCALER;

My understanding is that this is the capture subdev and not the scaler.
Looking at the other drivers, MEDIA_ENT_F_PROC_VIDEO_PIXEL_FORMATTER
could be the right function to use here.

Best regards,
Tomasz



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