Am Donnerstag, 18. Februar 2016, 11:08:19 schrieb Elaine Zhang:
> Add binding documentation for the power domains
> found on Rockchip RK3399 SoCs
>
> Signed-off-by: Elaine Zhang <zhangqing at rock-chips.com>
This patch should probably include the devicetree people
Rob Herring <robh+dt at kernel.org>
Pawel Moll <pawel.moll at arm.com>
Mark Rutland <mark.rutland at arm.com>
Ian Campbell <ijc+devicetree at hellion.org.uk>
Kumar Gala <galak at codeaurora.org>
devicetree at vger.kernel.org
> ---
> .../bindings/soc/rockchip/power_domain.txt | 21
> +++++++++++++++++++++ 1 file changed, 21 insertions(+)
>
> diff --git
> a/Documentation/devicetree/bindings/soc/rockchip/power_domain.txt
> b/Documentation/devicetree/bindings/soc/rockchip/power_domain.txt index
> 13dc6a3..c65d401 100644
> --- a/Documentation/devicetree/bindings/soc/rockchip/power_domain.txt
> +++ b/Documentation/devicetree/bindings/soc/rockchip/power_domain.txt
> @@ -7,6 +7,7 @@ Required properties for power domain controller:
> - compatible: Should be one of the following.
> "rockchip,rk3288-power-controller" - for RK3288 SoCs.
> "rockchip,rk3368-power-controller" - for RK3368 SoCs.
> + "rockchip,rk3399-power-controller" - for RK3399 SoCs.
> - #power-domain-cells: Number of cells in a power-domain specifier.
> Should be 1 for multiple PM domains.
> - #address-cells: Should be 1.
> @@ -16,6 +17,7 @@ Required properties for power domain sub nodes:
> - reg: index of the power domain, should use macros in:
> "include/dt-bindings/power/rk3288-power.h" - for RK3288 type power
> domain. "include/dt-bindings/power/rk3368-power.h" - for RK3368 type
> power domain. + "include/dt-bindings/power/rk3399-power.h" - for RK3399
> type power domain. - clocks (optional): phandles to clocks which need to
> be enabled while power domain switches state.
>
> @@ -45,12 +47,25 @@ Example:
> };
> };
>
> + power: power-controller {
> + compatible = "rockchip,rk3399-power-controller";
> + #power-domain-cells = <1>;
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + pd_gpu {
> + reg = <RK3399_PD_GPU>;
> + clocks = <&cru ACLK_GPU>;
> + };
> + };
> +
I don't think we need to add another example for every type of power-domain controller :-) .
> Node of a device using power domains must have a power-domains property,
> containing a phandle to the power device node and an index specifying
> which power domain to use.
> The index should use macros in:
> "include/dt-bindings/power/rk3288-power.h" - for rk3288 type power
> domain. "include/dt-bindings/power/rk3368-power.h" - for rk3368 type
> power domain. + "include/dt-bindings/power/rk3399-power.h" - for rk3399
> type power domain.
>
> Example of the node using power domain:
>
> @@ -65,3 +80,9 @@ Example of the node using power domain:
> power-domains = <&power RK3368_PD_GPU_1>;
> /* ... */
> };
> +
> + node {
> + /* ... */
> + power-domains = <&power RK3399_PD_GPU>;
> + /* ... */
> + };
same here
Heiko
