On 2016/8/27 21:41, Ziyuan Xu wrote:
> Add power domain as a optional property for sdhci-of-arasan, which can
> be truned off in the so-called unused condition, such as suspend and
> remove. Aim to lower power requirements.
>
> Signed-off-by: Ziyuan Xu <xzy.xu at rock-chips.com>
>
> ---
>
> Documentation/devicetree/bindings/mmc/arasan,sdhci.txt | 6 +++++-
> 1 file changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/Documentation/devicetree/bindings/mmc/arasan,sdhci.txt b/Documentation/devicetree/bindings/mmc/arasan,sdhci.txt
> index 3404afa..3f5189c 100644
> --- a/Documentation/devicetree/bindings/mmc/arasan,sdhci.txt
> +++ b/Documentation/devicetree/bindings/mmc/arasan,sdhci.txt
> @@ -1,12 +1,14 @@
> Device Tree Bindings for the Arasan SDHCI Controller
>
> - The bindings follow the mmc[1], clock[2], interrupt[3] and phy[4] bindings.
> + The bindings follow the mmc[1], clock[2], interrupt[3], phy[4] and power
> + domain[5] bindings.
> Only deviations are documented here.
>
> [1] Documentation/devicetree/bindings/mmc/mmc.txt
> [2] Documentation/devicetree/bindings/clock/clock-bindings.txt
> [3] Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
> [4] Documentation/devicetree/bindings/phy/phy-bindings.txt
> + [5] Documentation/devicetree/bindings/power/power_domain.txt
>
> Required Properties:
> - compatible: Compatibility string. One of:
> @@ -36,6 +38,8 @@ Optional Properties:
> - #clock-cells: If specified this should be the value <0>. With this property
> in place we will export a clock representing the Card Clock. This clock
> is expected to be consumed by our PHY. You must also specify
> + - power-domains: A phandle of and PM domain as specifier defined by bindings
A phandle of what?
> + of the power controller specified by phandle.
>
> Example:
> sdhci at e0100000 {
It would be nice to add the example code.
>
--
Best Regards
Shawn Lin
