linux-kernel - Re: [PATCH] PM / Domains: export pm_genpd_add

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Date:	Mon, 16 Nov 2015 12:08:17 +0100
From:	Ulf Hansson <ulf.hansson@...aro.org>
To:	Maruthi Srinivas Bayyavarapu <Maruthi.Bayyavarapu@....com>
Cc:	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Kevin Hilman <khilman@...nel.org>, Pavel Machek <pavel@....cz>,
	Len Brown <len.brown@...el.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Mark Brown <broonie@...nel.org>,
	"linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] PM / Domains: export pm_genpd_add_device symbol

On 16 November 2015 at 10:07, Maruthi Srinivas Bayyavarapu
<Maruthi.Bayyavarapu@....com> wrote:
> Drivers which can be built as loadable module needs
> symbol - pm_genpd_add_device to be exported. Those drivers
> create platform devices which comes under a powerdomain.

Currently this API is used by a few SoCs that haven't yet been
converted to device tree.

Can you tell me more about what driver/SoC you intend to use it for?

Kind regards
Uffe

>
> Signed-off-by: Maruthi Bayyavarapu <maruthi.bayyavarapu@....com>
> ---
>  drivers/base/power/domain.c | 7 +++++++
>  include/linux/pm_domain.h   | 9 ++-------
>  2 files changed, 9 insertions(+), 7 deletions(-)
>
> diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c
> index f932058..72998f8 100644
> --- a/drivers/base/power/domain.c
> +++ b/drivers/base/power/domain.c
> @@ -1253,6 +1253,13 @@ int __pm_genpd_add_device(struct generic_pm_domain *genpd, struct device *dev,
>         return ret;
>  }
>
> +int pm_genpd_add_device(struct generic_pm_domain *genpd,
> +                                     struct device *dev)
> +{
> +       return __pm_genpd_add_device(genpd, dev, NULL);
> +}
> +EXPORT_SYMBOL_GPL(pm_genpd_add_device);
> +
>  /**
>   * pm_genpd_remove_device - Remove a device from an I/O PM domain.
>   * @genpd: PM domain to remove the device from.
> diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h
> index ba4ced3..f9e2f7e 100644
> --- a/include/linux/pm_domain.h
> +++ b/include/linux/pm_domain.h
> @@ -114,7 +114,8 @@ extern struct generic_pm_domain *pm_genpd_lookup_dev(struct device *dev);
>  extern int __pm_genpd_add_device(struct generic_pm_domain *genpd,
>                                  struct device *dev,
>                                  struct gpd_timing_data *td);
> -
> +extern int pm_genpd_add_device(struct generic_pm_domain *genpd,
> +                                     struct device *dev);
>  extern int pm_genpd_remove_device(struct generic_pm_domain *genpd,
>                                   struct device *dev);
>  extern int pm_genpd_add_subdomain(struct generic_pm_domain *genpd,
> @@ -163,12 +164,6 @@ static inline void pm_genpd_init(struct generic_pm_domain *genpd,
>  }
>  #endif
>
> -static inline int pm_genpd_add_device(struct generic_pm_domain *genpd,
> -                                     struct device *dev)
> -{
> -       return __pm_genpd_add_device(genpd, dev, NULL);
> -}
> -
>  #ifdef CONFIG_PM_GENERIC_DOMAINS_SLEEP
>  extern void pm_genpd_syscore_poweroff(struct device *dev);
>  extern void pm_genpd_syscore_poweron(struct device *dev);
> --
> 1.9.1
>
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