Re: [PATCH v2 2/8] rcar-vin: Remove unneeded calls to pm_runtime_{enable,disable}

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Hi Niklas,

On Thu, May 16, 2019 at 3:49 AM Niklas Söderlund
<niklas.soderlund+renesas@xxxxxxxxxxxx> wrote:
> Runtime PM is already enabled unconditionally when the driver is probed
> and disabled when it's removed. There is no point in doing it again for
> Gen2 when opening and closing the video device.
>
> Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@xxxxxxxxxxxx>
> Reviewed-by: Ulrich Hecht <uli+renesas@xxxxxxxx>
> ---
>  drivers/media/platform/rcar-vin/rcar-v4l2.c | 7 +------
>  1 file changed, 1 insertion(+), 6 deletions(-)
>
> diff --git a/drivers/media/platform/rcar-vin/rcar-v4l2.c b/drivers/media/platform/rcar-vin/rcar-v4l2.c
> index b821ea01786eb1ff..0841f1a0bfd7ba3a 100644
> --- a/drivers/media/platform/rcar-vin/rcar-v4l2.c
> +++ b/drivers/media/platform/rcar-vin/rcar-v4l2.c
> @@ -797,8 +797,6 @@ static int rvin_initialize_device(struct file *file)
>         if (ret < 0)
>                 return ret;
>
> -       pm_runtime_enable(&vin->vdev.dev);

Ah, this already (partly) answers my question on patch 1/8.

> -
>         /*
>          * Try to configure with default parameters. Notice: this is the
>          * very first open, so, we cannot race against other calls,

Gr{oetje,eeting}s,

                        Geert


--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds



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