linux-kernel - Re: [RFC PATCH v2 7/8] PM / Runtime: Add can_power

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Message-ID: <CAF1ivSbJi6rOYJ0wm7mPj2GtRG=UDHkm5TrbCHcSpup6H5EQjQ@mail.gmail.com>
Date:	Mon, 19 Mar 2012 09:34:08 +0800
From:	Lin Ming <ming.m.lin@...el.com>
To:	Zhang Rui <rui.zhang@...el.com>, Jeff Garzik <jgarzik@...ox.com>,
	Alan Stern <stern@...land.harvard.edu>,
	"Rafael J. Wysocki" <rjw@...k.pl>, Tejun Heo <tj@...nel.org>,
	Aaron Lu <aaron.lu@....com>
Cc:	linux-kernel@...r.kernel.org, linux-ide@...r.kernel.org,
	linux-scsi@...r.kernel.org, linux-pm@...r.kernel.org,
	linux-acpi <linux-acpi@...r.kernel.org>
Subject: Re: [RFC PATCH v2 7/8] PM / Runtime: Add can_power_off flag to subsys data

On Thu, Mar 1, 2012 at 5:02 PM, Lin Ming <ming.m.lin@...el.com> wrote:
> Parent device will check child's can_power_off flag to see if child device can
> be powered off.
>
> Signed-off-by: Lin Ming <ming.m.lin@...el.com>
> ---
>  include/linux/pm.h |    1 +
>  1 files changed, 1 insertions(+), 0 deletions(-)
>
> diff --git a/include/linux/pm.h b/include/linux/pm.h
> index e4982ac..2e74531 100644
> --- a/include/linux/pm.h
> +++ b/include/linux/pm.h
> @@ -465,6 +465,7 @@ struct pm_subsys_data {
>  #ifdef CONFIG_PM_GENERIC_DOMAINS
>        struct pm_domain_data *domain_data;
>  #endif
> +       bool can_power_off;

Hi Rafael,

I moved can_power_off flag to pm_subsys_daa.
SCSI/SATA will use it.

Is it OK to you?

Thanks,
Lin Ming

>  };
>
>  struct dev_pm_info {
> --
> 1.7.2.5
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