On Fri, Mar 13, 2020 at 05:34:21PM +0800, Henry Chen wrote:
> Add interconnect provider dt-bindings for MT8183.
>
> Signed-off-by: Henry Chen <henryc.chen@xxxxxxxxxxxx>
> ---
> .../devicetree/bindings/soc/mediatek/dvfsrc.txt | 9 +++++++++
> include/dt-bindings/interconnect/mtk,mt8183-emi.h | 18 ++++++++++++++++++
> 2 files changed, 27 insertions(+)
> create mode 100644 include/dt-bindings/interconnect/mtk,mt8183-emi.h
>
> diff --git a/Documentation/devicetree/bindings/soc/mediatek/dvfsrc.txt b/Documentation/devicetree/bindings/soc/mediatek/dvfsrc.txt
> index 7f43499..da98ec9 100644
> --- a/Documentation/devicetree/bindings/soc/mediatek/dvfsrc.txt
> +++ b/Documentation/devicetree/bindings/soc/mediatek/dvfsrc.txt
> @@ -12,6 +12,11 @@ Required Properties:
> - clock-names: Must include the following entries:
> "dvfsrc": DVFSRC module clock
> - clocks: Must contain an entry for each entry in clock-names.
> +- #interconnect-cells : should contain 1
> +- interconnect : interconnect providers support dram bandwidth requirements.
> + The provider is able to communicate with the DVFSRC and send the dram
> + bandwidth to it. shall contain only one of the following:
> + "mediatek,mt8183-emi"
>
> Example:
>
> @@ -20,4 +25,8 @@ Example:
> reg = <0 0x10012000 0 0x1000>;
> clocks = <&infracfg CLK_INFRA_DVFSRC>;
> clock-names = "dvfsrc";
> + ddr_emi: interconnect {
> + compatible = "mediatek,mt8183-emi";
> + #interconnect-cells = <1>;
Nodes with a compatible and no defined way to access the hardware always
look suspicious. Can't you make the parent node an interconnect
provider.
Rob
