linux-kernel - Re: [PATCH v2 17/18] phy: dt-bindings: cdns,dphy: make clocks optional

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Message-ID: <20210603081605.v7b5peuqjbsivmzb@ti.com>
Date:   Thu, 3 Jun 2021 13:46:07 +0530
From:   Pratyush Yadav <p.yadav@...com>
To:     Maxime Ripard <maxime@...no.tech>
CC:     Mauro Carvalho Chehab <mchehab@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Kishon Vijay Abraham I <kishon@...com>,
        Vinod Koul <vkoul@...nel.org>,
        Peter Ujfalusi <peter.ujfalusi@...il.com>,
        Steve Longerbeam <slongerbeam@...il.com>,
        Benoit Parrot <bparrot@...com>, <linux-media@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-phy@...ts.infradead.org>, <dmaengine@...r.kernel.org>,
        Vignesh Raghavendra <vigneshr@...com>,
        Tomi Valkeinen <tomi.valkeinen@...asonboard.com>,
        Chunfeng Yun <chunfeng.yun@...iatek.com>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>
Subject: Re: [PATCH v2 17/18] phy: dt-bindings: cdns,dphy: make clocks
 optional

On 02/06/21 03:27PM, Maxime Ripard wrote:
> Hi,
> 
> On Wed, May 26, 2021 at 08:53:07PM +0530, Pratyush Yadav wrote:
> > The clocks are not used by the DPHY when used in Rx mode so make them
> > optional.
> > 
> > Signed-off-by: Pratyush Yadav <p.yadav@...com>
> > 
> > ---
> > 
> > Changes in v2:
> > - Re-order subject prefixes.
> > 
> >  Documentation/devicetree/bindings/phy/cdns,dphy.yaml | 2 --
> >  1 file changed, 2 deletions(-)
> > 
> > diff --git a/Documentation/devicetree/bindings/phy/cdns,dphy.yaml b/Documentation/devicetree/bindings/phy/cdns,dphy.yaml
> > index b90a58773bf2..3bb5be05e825 100644
> > --- a/Documentation/devicetree/bindings/phy/cdns,dphy.yaml
> > +++ b/Documentation/devicetree/bindings/phy/cdns,dphy.yaml
> > @@ -33,8 +33,6 @@ properties:
> >  required:
> >    - compatible
> >    - reg
> > -  - clocks
> > -  - clock-names
> 
> As far as I can remember from the cadence documentation, those clocks
> were required. I guess this is the integration that provides a few fixed
> clocks?

Yes. The clock divider/frequency has been set via the DPHY pins so no 
need to set them via software.

-- 
Regards,
Pratyush Yadav
Texas Instruments Inc.