On 3 December 2014 at 14:41, Geert Uytterhoeven <geert+renesas@xxxxxxxxx> wrote:
> If CONFIG_PM_RUNTIME is not set, the clocks must be enabled before the
> devices can be used.
>
> Currently these clocks are enabled by the !CONFIG_PM_RUNTIME version of
> pm_clk_notify, activated by the hack in drivers/sh/pm_runtime.c, but
> this will go away soon (at least for DT).
>
> On detach, disabling the clocks is already handled by pm_clk_destroy().
> On system suspend/resume, disabling/enabling clocks is already handled
> from the genpd->dev_ops.{start,stop}() callbacks.
>
> Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
> ---
> v6:
> - No changes,
> v5:
> - No changes,
> v4:
> - New.
> ---
> arch/arm/mach-shmobile/pm-rmobile.c | 8 ++++++++
> 1 file changed, 8 insertions(+)
>
> diff --git a/arch/arm/mach-shmobile/pm-rmobile.c b/arch/arm/mach-shmobile/pm-rmobile.c
> index 168046c355fc8368..6d912ce801aa88bd 100644
> --- a/arch/arm/mach-shmobile/pm-rmobile.c
> +++ b/arch/arm/mach-shmobile/pm-rmobile.c
> @@ -118,6 +118,14 @@ static int rmobile_pd_attach_dev(struct generic_pm_domain *domain,
> goto fail;
> }
>
> + if (!IS_ENABLED(CONFIG_PM_RUNTIME)) {
This will require a fixup later on, since using genpd will always be
done for CONFIG_PM_RUNTIME (or CONFIG_PM actually) ).
I guess you knew that already, but then you can't keep my response as
a reminder. :-)
Kind regards
Uffe
> + error = pm_clk_resume(dev);
> + if (error) {
> + dev_err(dev, "pm_clk_resume failed %d\n", error);
> + goto fail;
> + }
> + }
> +
> return 0;
>
> fail:
> --
> 1.9.1
>
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