[PATCH] spi/pl022: Activate resourses before deactivate them in suspend

[Ulf Hansson]

Hi Mark,

Just a kind remember on this. Do you see any problem merging this?

Kind regards
Ulf Hansson

On 5 October 2012 09:43, Ulf Hansson <ulf.hansson at stericsson.com> wrote:
> From: Ulf Hansson <ulf.hansson at linaro.org>
>
> To be able to deactivate resourses in suspend, the resourses must
> first be surely active. This is done with a pm_runtime_get_sync.
> Once the resourses are restored to active state again in resume,
> the runtime pm usage count can be decreased with a pm_runtime_put.
>
> Signed-off-by: Ulf Hansson <ulf.hansson at linaro.org>
> ---
>  drivers/spi/spi-pl022.c |    3 +++
>  1 file changed, 3 insertions(+)
>
> diff --git a/drivers/spi/spi-pl022.c b/drivers/spi/spi-pl022.c
> index 9194641..c3590e0 100644
> --- a/drivers/spi/spi-pl022.c
> +++ b/drivers/spi/spi-pl022.c
> @@ -2350,6 +2350,8 @@ static int pl022_suspend(struct device *dev)
>                 dev_warn(dev, "cannot suspend master\n");
>                 return ret;
>         }
> +
> +       pm_runtime_get_sync(dev);
>         pl022_suspend_resources(pl022);
>
>         dev_dbg(dev, "suspended\n");
> @@ -2362,6 +2364,7 @@ static int pl022_resume(struct device *dev)
>         int ret;
>
>         pl022_resume_resources(pl022);
> +       pm_runtime_put(dev);
>
>         /* Start the queue running */
>         ret = spi_master_resume(pl022->master);
> --
> 1.7.10
>