Re: [RFC][PATCH] PM / Runtime: Add sysfs switch for disablingdevice run-time PM

From: Greg KH
Date: Tue Jan 19 2010 - 22:18:24 EST


On Mon, Jan 18, 2010 at 01:29:55AM +0100, Rafael J. Wysocki wrote:
> From: Rafael J. Wysocki <rjw@xxxxxxx>
> Subject: PM / Runtime: Add sysfs switch for disabling device run-time PM
>
> Add new device sysfs attribute, power/runtime, allowing the user
> space to block the run-time power management of the device. If this
> attribute is set to "disabled", the driver of the device won't be
> able to enable run-time power management for it (without breaking the
> rules).
>
> Signed-off-by: Rafael J. Wysocki <rjw@xxxxxxx>
> ---
> drivers/base/power/power.h | 4 +
> drivers/base/power/runtime.c | 107 +++++++++++++++++++++++++++++++++----------
> drivers/base/power/sysfs.c | 46 ++++++++++++++++++
> include/linux/pm.h | 1
> include/linux/pm_runtime.h | 11 +---
> 5 files changed, 139 insertions(+), 30 deletions(-)

You forgot to also add an entry into Documentation/ABI/ for when you
add/change a sysfs file :)

thanks,

greg k-h
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