[PATCH v2 1/2] dt-bindings: PCI: mediatek-gen3: Add property to disable dvfsrc voltage request

[Jianjun Wang]

Hi Rob, Bjorn, Matthias,

Could you please help to take a look at this patch series?

We have done the internal tests and need to implement this function in
the final product, We really need your suggestions.

Thanks.

On Fri, 2021-06-11 at 19:48 +0800, Jianjun Wang wrote:
> Add property to disable dvfsrc voltage request, if this property
> is presented, we assume that the requested voltage is always
> higher enough to keep the PCIe controller active.
> 
> Signed-off-by: Jianjun Wang <jianjun.wang at mediatek.com>
> Reviewed-by: Qizhong Cheng <qizhong.cheng at mediatek.com>
> Tested-by: Qizhong Cheng <qizhong.cheng at mediatek.com>
> ---
>  .../devicetree/bindings/pci/mediatek-pcie-gen3.yaml       | 8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml b/Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml
> index e7b1f9892da4..3e26c032cea9 100644
> --- a/Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml
> +++ b/Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml
> @@ -96,6 +96,12 @@ properties:
>    phys:
>      maxItems: 1
>  
> +  disable-dvfsrc-vlt-req:
> +    description: Disable dvfsrc voltage request, if this property is presented,
> +      we assume that the requested voltage is always higher enough to keep
> +      the PCIe controller active.
> +    type: boolean
> +
>    '#interrupt-cells':
>      const: 1
>  
> @@ -166,6 +172,8 @@ examples:
>                       <&infracfg_rst 3>;
>              reset-names = "phy", "mac";
>  
> +            disable-dvfsrc-vlt-req;
> +
>              #interrupt-cells = <1>;
>              interrupt-map-mask = <0 0 0 0x7>;
>              interrupt-map = <0 0 0 1 &pcie_intc 0>,