Re: [PATCH] media: meson-ge2d: Fix rotation parameter changes detection in 'ge2d_s_ctrl()'

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Hi,

On 29/07/2021 21:49, Christophe JAILLET wrote:
> There is likely a typo here. To be consistent, we should compare
> 'fmt.height' with 'ctx->out.pix_fmt.height', not 'ctx->out.pix_fmt.width'.

You're right, it's typo.

> 
> Fixes: 59a635327ca7 ("media: meson: Add M2M driver for the Amlogic GE2D Accelerator Unit")
> Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
> ---
> I've not looked deeply in the code, but why is this test needed in the
> first place?
> Couldn't we assigned 'ctx->out.pix_fmt = fmt' un-conditionally?

We could indeed, and with the typo you discovered it's already the case so the test could go away.

> ---
>  drivers/media/platform/meson/ge2d/ge2d.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/media/platform/meson/ge2d/ge2d.c b/drivers/media/platform/meson/ge2d/ge2d.c
> index a1393fefa8ae..be22bb60e7cf 100644
> --- a/drivers/media/platform/meson/ge2d/ge2d.c
> +++ b/drivers/media/platform/meson/ge2d/ge2d.c
> @@ -780,7 +780,7 @@ static int ge2d_s_ctrl(struct v4l2_ctrl *ctrl)
>  		 * parameters, take them in account
>  		 */
>  		if (fmt.width != ctx->out.pix_fmt.width ||
> -		    fmt.height != ctx->out.pix_fmt.width ||
> +		    fmt.height != ctx->out.pix_fmt.height ||
>  		    fmt.bytesperline > ctx->out.pix_fmt.bytesperline ||
>  		    fmt.sizeimage > ctx->out.pix_fmt.sizeimage)
>  			ctx->out.pix_fmt = fmt;
> 

Acked-by: Neil Armstrong <narmstrong@xxxxxxxxxxxx>

(please keep it if you re-spin by removing the test entirely)

Neil



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