linux-kernel - Re: [PATCH v3 1/2] dt-bindings: PCI: mediatek-gen3: Add property to disable dvfsrc voltage request

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Date:   Wed, 14 Jul 2021 19:20:12 +0800
From:   Jianjun Wang <jianjun.wang@...iatek.com>
To:     Bjorn Helgaas <bhelgaas@...gle.com>,
        Rob Herring <robh+dt@...nel.org>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Qizhong Cheng <qizhong.cheng@...iatek.com>
CC:     Ryder Lee <ryder.lee@...iatek.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        <linux-pci@...r.kernel.org>, <linux-mediatek@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>, <youlin.pei@...iatek.com>,
        <chuanjia.liu@...iatek.com>, <ot_jiey.yang@...iatek.com>,
        <drinkcat@...omium.org>, <Rex-BC.Chen@...iatek.com>,
        Krzysztof Wilczyski <kw@...ux.com>, <Ryan-JH.Yu@...iatek.com>
Subject: Re: [PATCH v3 1/2] dt-bindings: PCI: mediatek-gen3: Add property to
 disable dvfsrc voltage request

Hi,

Just gentle ping for this patch set, please kindly let me know your
comments about this patch set.

Thanks.

On Wed, 2021-06-30 at 11:40 +0800, Qizhong Cheng wrote:
> Reviewed-by: Qizhong Cheng <qizhong.cheng@...iatek.com>
> Tested-by: Qizhong Cheng <qizhong.cheng@...iatek.com>
> 
> On Wed, 2021-06-30 at 10:49 +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@...iatek.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>,
> 
>