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

From: Chunfeng Yun (云春峰)
Date: Sat Feb 08 2025 - 22:34:32 EST


On Mon, 2025-01-13 at 18:30 +0000, Conor Dooley wrote:
> On Sat, Jan 11, 2025 at 10:15:41PM +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@xxxxxxxxxxxx>
> > ---
> > based on kernel 6.13-rc1
> >
> > this property is porting from t-phy driver, due to the u2 phy are
> > similar.
> > ---
> > 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:
> > + description:
> > + The selection of disconnect threshold (U2 phy)
> > + $ref: /schemas/types.yaml#/definitions/uint32
> > + minimum: 1
> > + maximum: 15
>
> What unit is this? Unitless? How are the values determined?
No unit, it's a level, may be treat it as an index to select different
threshold.

Thanks
>
> > +
> > mediatek,efuse-intr:
> > description:
> > The selection of Internal Resistor (U2/U3 phy)
> > --
> > 2.46.0
> >