On 12/07/2018 02:13 PM, Mason Yang wrote:
> Document the bindings used by the Renesas R-Car Gen3 RPC controller.
>
> Signed-off-by: Mason Yang <masonccyang@xxxxxxxxxxx>
> ---
> .../devicetree/bindings/spi/spi-renesas-rpc.txt | 38 ++++++++++++++++++++++
> 1 file changed, 38 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/spi/spi-renesas-rpc.txt
>
> diff --git a/Documentation/devicetree/bindings/spi/spi-renesas-rpc.txt b/Documentation/devicetree/bindings/spi/spi-renesas-rpc.txt
> new file mode 100644
> index 0000000..a191f70
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/spi/spi-renesas-rpc.txt
> @@ -0,0 +1,38 @@
> +Renesas R-Car Gen3 RPC controller Device Tree Bindings
> +------------------------------------------------------
> +
> +Required properties:
> +- compatible: should be "renesas,r8a77995-rpc"
> +- #address-cells: should be 1
> +- #size-cells: should be 0
> +- reg: should contain 2 entries, one for the registers and one for the direct
> + mapping area
> +- reg-names: should contain "rpc_regs" and "dirmap"
> +- interrupts: interrupt line connected to the RPC controller
Required prop but it's missing in your example below...
> +- clock-names: should contain "clk_rpc"
> +- clocks: should contain 1 entries for the module's clock
> +- rpc-mode: should contain "rpc-spi-flash" for rpc spi mode or
> + "rpc-hyperflash" for rpc hyerflash mode.
> +
> +Example:
> +
> + rpc: rpc@ee200000 {
> + compatible = "renesas,r8a77995-rpc";
> + reg = <0 0xee200000 0 0x8100>, <0 0x08000000 0 0x4000000>;
> + reg-names = "rpc_regs", "dirmap";
> + clocks = <&cpg CPG_MOD 917>;
> + power-domains = <&sysc R8A77995_PD_ALWAYS_ON>;
> + resets = <&cpg 917>;
> + clock-names = "clk_rpc";
> + rpc-mode = "rpc-spi-flash";
> + #address-cells = <1>;
> + #size-cells = <0>;
[...]
MBR, Sergei
