linux-kernel - Re: [PATCH] media: s5p-jpeg: Correct step and max values for V4L2_CID_JPEG_RESTART

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Date:   Wed, 9 Jan 2019 21:50:45 +0100
From:   Jacek Anaszewski <jacek.anaszewski@...il.com>
To:     Paweł Chmiel <pawel.mikolaj.chmiel@...il.com>,
        andrzej.p@...sung.com
Cc:     mchehab@...nel.org, s.nawrocki@...sung.com,
        linux-arm-kernel@...ts.infradead.org, linux-media@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-samsung-soc@...r.kernel.org
Subject: Re: [PATCH] media: s5p-jpeg: Correct step and max values for
 V4L2_CID_JPEG_RESTART_INTERVAL

Hi Paweł,

Thank you for the patch.

On 1/9/19 7:00 PM, Paweł Chmiel wrote:
> This commit corrects max and step values for v4l2 control for
> V4L2_CID_JPEG_RESTART_INTERVAL. Max should be 0xffff and step should be 1.
> It was found by using v4l2-compliance tool and checking result of
> VIDIOC_QUERY_EXT_CTRL/QUERYMENU test.
> Previously it was complaining that step was bigger than difference
> between max and min.
> 
> Fixes: 15f4bc3b1f42 ("[media] s5p-jpeg: Add JPEG controls support")
> Signed-off-by: Paweł Chmiel <pawel.mikolaj.chmiel@...il.com>
> ---
>   drivers/media/platform/s5p-jpeg/jpeg-core.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/media/platform/s5p-jpeg/jpeg-core.c b/drivers/media/platform/s5p-jpeg/jpeg-core.c
> index 3f9000b70385..33e9927db9a0 100644
> --- a/drivers/media/platform/s5p-jpeg/jpeg-core.c
> +++ b/drivers/media/platform/s5p-jpeg/jpeg-core.c
> @@ -2002,7 +2002,7 @@ static int s5p_jpeg_controls_create(struct s5p_jpeg_ctx *ctx)
>   
>   		v4l2_ctrl_new_std(&ctx->ctrl_handler, &s5p_jpeg_ctrl_ops,
>   				  V4L2_CID_JPEG_RESTART_INTERVAL,
> -				  0, 3, 0xffff, 0);
> +				  0, 0xffff, 1, 0);
>   		if (ctx->jpeg->variant->version == SJPEG_S5P)
>   			mask = ~0x06; /* 422, 420 */
>   	}
> 

Reviewed-by: Jacek Anaszewski <jacek.anaszewski@...il.com>

-- 
Best regards,
Jacek Anaszewski