linux-kernel - Re: [PATCH 1/2] dt-bindings: phy: mediatek,xsphy: add property to set disconnect threshold

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Message-ID: <8f32aaacbf3d83ebdb31da2eaa0099eeddad3ae8.camel@mediatek.com>
Date: Mon, 6 Jan 2025 14:32:08 +0000
From: Chunfeng Yun (云春峰) <Chunfeng.Yun@...iatek.com>
To: "robh@...nel.org" <robh@...nel.org>
CC: "linux-mediatek@...ts.infradead.org" <linux-mediatek@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"conor+dt@...nel.org" <conor+dt@...nel.org>,
	"linux-arm-kernel@...ts.infradead.org"
	<linux-arm-kernel@...ts.infradead.org>, "vkoul@...nel.org"
	<vkoul@...nel.org>, "matthias.bgg@...il.com" <matthias.bgg@...il.com>,
	"krzk+dt@...nel.org" <krzk+dt@...nel.org>, "linux-phy@...ts.infradead.org"
	<linux-phy@...ts.infradead.org>, AngeloGioacchino Del Regno
	<angelogioacchino.delregno@...labora.com>
Subject: Re: [PATCH 1/2] dt-bindings: phy: mediatek,xsphy: add property to set
 disconnect threshold

hi,
On Wed, 2024-11-27 at 08:26 -0600, Rob Herring wrote:
> External email : Please do not click links or open attachments until
> you have verified the sender or the content.
> 
> 
> On Tue, Nov 26, 2024 at 10:58:58AM +0800, Chunfeng Yun wrote:
> > Add a property to tune usb2 phy's disconnect threshold.
> > And add a compatible for mt8196.
> > 
> > Signed-off-by: Chunfeng Yun <chunfeng.yun@...iatek.com>
> > ---
> >  Documentation/devicetree/bindings/phy/mediatek,xsphy.yaml | 8
> > ++++++++
> >  1 file changed, 8 insertions(+)
> > 
> > diff --git
> > a/Documentation/devicetree/bindings/phy/mediatek,xsphy.yaml
> > b/Documentation/devicetree/bindings/phy/mediatek,xsphy.yaml
> > index a9e3139fd421..2e012d5e1da1 100644
> > --- a/Documentation/devicetree/bindings/phy/mediatek,xsphy.yaml
> > +++ b/Documentation/devicetree/bindings/phy/mediatek,xsphy.yaml
> > @@ -49,6 +49,7 @@ properties:
> >        - enum:
> >            - mediatek,mt3611-xsphy
> >            - mediatek,mt3612-xsphy
> > +          - mediatek,mt8196-xsphy
> >        - const: mediatek,xsphy
> > 
> >    reg:
> > @@ -129,6 +130,13 @@ patternProperties:
> >          minimum: 1
> >          maximum: 7
> > 
> > +      mediatek,discth:
> 
> That's not understandable. Spell it out: mediatek,disconnect-thres
It comes from xsphy register map document, due to xsphy is similar with
t-phy, I port it from t-phy, and use the same property.


https://elixir.bootlin.com/linux/v6.13-rc3/source/Documentation/devicetree/bindings/phy/mediatek,tphy.yaml#L226

Thanks.

> 
> > +        description:
> > +          The selection of disconnect threshold (U2 phy)
> > +        $ref: /schemas/types.yaml#/definitions/uint32
> > +        minimum: 1
> > +        maximum: 15
> > +
> >        mediatek,efuse-intr:
> >          description:
> >            The selection of Internal Resistor (U2/U3 phy)
> > --
> > 2.46.0
> >