[RFC v2: PATCH 1/2] dt-bindings: Document the hi3660 reset bindings

[Zhangfei Gao]

On Wed, Nov 23, 2016 at 4:07 PM, Zhangfei Gao <zhangfei.gao at linaro.org> wrote:
> Add DT bindings documentation for hi3660 SoC reset controller.
>
> Signed-off-by: Zhangfei Gao <zhangfei.gao at linaro.org>
> ---
>  .../bindings/reset/hisilicon,hi3660-reset.txt      | 51 ++++++++++++++++++++++
>  1 file changed, 51 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/reset/hisilicon,hi3660-reset.txt
>
> diff --git a/Documentation/devicetree/bindings/reset/hisilicon,hi3660-reset.txt b/Documentation/devicetree/bindings/reset/hisilicon,hi3660-reset.txt
> new file mode 100644
> index 0000000..250daf2
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/reset/hisilicon,hi3660-reset.txt
> @@ -0,0 +1,51 @@
> +Hisilicon System Reset Controller
> +======================================
> +
> +Please also refer to reset.txt in this directory for common reset
> +controller binding usage.
> +
> +The reset controller registers are part of the system-ctl block on
> +hi3660 SoC.
> +
> +Required properties:
> +- compatible: should be
> +                "hisilicon,hi3660-reset"
> +- #reset-cells: 1, see below
> +- hisi,rst-syscon: phandle of the reset's syscon.
> +- hisi,reset-bits: Contains the reset control register information
> +                 Should contain 2 cells for each reset exposed to
> +                 consumers, defined as:
> +                       Cell #1 : offset from the syscon register base
> +                       Cell #2 : bits position of the control register
> +
> +Example:
> +       iomcu: iomcu at ffd7e000 {
> +               compatible = "hisilicon,hi3660-iomcu", "syscon";
> +               reg = <0x0 0xffd7e000 0x0 0x1000>;
> +       };
> +
> +       iomcu_rst: iomcu_rst_controller {
> +               compatible = "hisilicon,hi3660-reset";
> +               #reset-cells = <1>;
> +               hisi,rst-syscon = <&iomcu>;
> +               hisi,reset-bits = <0x20 0x8             /* 0: i2c0 */
> +                                  0x20 0x10            /* 1: i2c1 */
> +                                  0x20 0x20            /* 2: i2c2 */
> +                                  0x20 0x8000000>;     /* 3: i2c6 */
> +       };
> +
> +Specifying reset lines connected to IP modules
> +==============================================
> +example:
> +
> +        i2c0: i2c at ..... {
> +                ...
> +               resets = <&iomcu_rst 0>;
> +                ...
> +        };
> +
> +       i2c1: i2c at ..... {
> +                ...
> +               resets = <&iomcu_rst 1>;
> +                ...
> +        };
> --
> 2.7.4


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