linux-kernel - Re: [PATCH v3 3/3] PM / Runtime: Add may_power

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Message-ID: <4F754963.4080104@kernel.org>
Date:	Fri, 30 Mar 2012 01:49:23 -0400
From:	Len Brown <lenb@...nel.org>
To:	Lin Ming <ming.m.lin@...el.com>
CC:	"Rafael J. Wysocki" <rjw@...k.pl>,
	Alan Stern <stern@...land.harvard.edu>,
	linux-acpi@...r.kernel.org, linux-pm@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 3/3] PM / Runtime: Add may_power_off flag to subsys
 data

Why?

-Len

On 03/29/2012 02:09 AM, Lin Ming wrote:

> Parent device will check child's may_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..c9953b4 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 may_power_off;
>  };
>  
>  struct dev_pm_info {


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