Re: [RFC] PCI/PM: Add ABI document for sysfs file d3cold_allowed

From: Rafael J. Wysocki
Date: Fri Jul 27 2012 - 15:01:19 EST


On Friday, July 27, 2012, Huang Ying wrote:
> This patch adds ABI document for the following sysfs file:
>
> /sys/bus/pci/devices/.../d3cold_allowed
>
> Signed-off-by: Huang Ying <ying.huang@xxxxxxxxx>

Acked-by: Rafael J. Wysocki <rjw@xxxxxxx>

> ---
> Documentation/ABI/testing/sysfs-bus-pci | 12 ++++++++++++
> 1 file changed, 12 insertions(+)
>
> --- a/Documentation/ABI/testing/sysfs-bus-pci
> +++ b/Documentation/ABI/testing/sysfs-bus-pci
> @@ -210,3 +210,15 @@ Users:
> firmware assigned instance number of the PCI
> device that can help in understanding the firmware
> intended order of the PCI device.
> +
> +What: /sys/bus/pci/devices/.../d3cold_allowed
> +Date: July 2012
> +Contact: Huang Ying <ying.huang@xxxxxxxxx>
> +Description:
> + d3cold_allowed is bit to control whether the corresponding PCI
> + device can be put into D3Cold state. If it is cleared, the
> + device will never be put into D3Cold state. If it is set, the
> + device may be put into D3Cold state if other requirement are
> + satisfied too. Reading this attribute will show the current
> + value of d3cold_allowed bit. Writting this attribute will set
> + the value of d3cold_allowed bit.
>
>

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