lkml.org 
[lkml]   [2017]   [Jul]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: [PATCH] PM / runtime: Document new pm_runtime_set_suspended constraint
On 24 July 2017 at 11:53, Johan Hovold <johan@kernel.org> wrote:
> Since commit a8636c89648a ("PM / Runtime: Don't allow to suspend a
> device with an active child") it is no longer permitted to set
> RPM_SUSPENDED state for a device with active children unless
> power.ignore_children is set.
>
> Update the documentation to reflect this.
>
> Cc: Alan Stern <stern@rowland.harvard.edu>
> Cc: Tony Lindgren <tony@atomide.com>
> Cc: Ulf Hansson <ulf.hansson@linaro.org>
> Signed-off-by: Johan Hovold <johan@kernel.org>

Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>

Kind regards
Uffe

> ---
> Documentation/power/runtime_pm.txt | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/Documentation/power/runtime_pm.txt b/Documentation/power/runtime_pm.txt
> index 0fde3dcf077a..625549d4c74a 100644
> --- a/Documentation/power/runtime_pm.txt
> +++ b/Documentation/power/runtime_pm.txt
> @@ -435,7 +435,8 @@ drivers/base/power/runtime.c and include/linux/pm_runtime.h:
> PM status to 'suspended' and update its parent's counter of 'active'
> children as appropriate (it is only valid to use this function if
> 'power.runtime_error' is set or 'power.disable_depth' is greater than
> - zero)
> + zero); it will fail and return an error code if the device has a child
> + which is active and the 'power.ignore_children' flag is unset
>
> bool pm_runtime_active(struct device *dev);
> - return true if the device's runtime PM status is 'active' or its
> --
> 2.13.3
>

\
 
 \ /
  Last update: 2017-07-27 15:21    [W:0.089 / U:4.652 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site