linux-kernel - Re: [PATCH 2/4] ASoC: dt-bindings: fsl,xcvr: Add two PLL clock sources

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Date: Fri, 10 May 2024 10:27:15 +0800
From: Shengjiu Wang <shengjiu.wang@...il.com>
To: Conor Dooley <conor@...nel.org>
Cc: Shengjiu Wang <shengjiu.wang@....com>, lgirdwood@...il.com, broonie@...nel.org, 
	robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org, 
	linux-sound@...r.kernel.org, devicetree@...r.kernel.org, 
	linux-kernel@...r.kernel.org, Xiubo.Lee@...il.com, festevam@...il.com, 
	nicoleotsuka@...il.com, perex@...ex.cz, tiwai@...e.com, 
	alsa-devel@...a-project.org, linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH 2/4] ASoC: dt-bindings: fsl,xcvr: Add two PLL clock sources

On Fri, May 10, 2024 at 1:14 AM Conor Dooley <conor@...nel.org> wrote:
>
> On Thu, May 09, 2024 at 10:57:38AM +0800, Shengjiu Wang wrote:
> > Add two PLL clock sources, they are the parent clocks of the root clock
> > one is for 8kHz series rates, named as 'pll8k', another one is for
> > 11kHz series rates, named as 'pll11k'. They are optional clocks,
> > if there are such clocks, then the driver can switch between them to
> > support more accurate sample rates.
> >
> > As 'pll8k' and 'pll11k' are optional, then add 'minItems: 4' for
> > clocks and clock-names properties.
>
> Despite the detail given here in the commit message, the series this is
> appearing in and one of the driver patches makes me a bit "suspicious"
> of this patch. Are these newly added clocks available on all devices, or
> just on the imx95, or?

These newly added clocks are only available for the imx95 XCVR.

Best regards
Shengjiu Wang
>
> Thanks,
> Conor.
>
> >
> > Signed-off-by: Shengjiu Wang <shengjiu.wang@....com>
> > ---
> >  Documentation/devicetree/bindings/sound/fsl,xcvr.yaml | 6 ++++++
> >  1 file changed, 6 insertions(+)
> >
> > diff --git a/Documentation/devicetree/bindings/sound/fsl,xcvr.yaml b/Documentation/devicetree/bindings/sound/fsl,xcvr.yaml
> > index 1c74a32def09..c4660faed404 100644
> > --- a/Documentation/devicetree/bindings/sound/fsl,xcvr.yaml
> > +++ b/Documentation/devicetree/bindings/sound/fsl,xcvr.yaml
> > @@ -50,6 +50,9 @@ properties:
> >        - description: PHY clock
> >        - description: SPBA clock
> >        - description: PLL clock
> > +      - description: PLL clock source for 8kHz series
> > +      - description: PLL clock source for 11kHz series
> > +    minItems: 4
> >
> >    clock-names:
> >      items:
> > @@ -57,6 +60,9 @@ properties:
> >        - const: phy
> >        - const: spba
> >        - const: pll_ipg
> > +      - const: pll8k
> > +      - const: pll11k
> > +    minItems: 4
> >
> >    dmas:
> >      items:
> > --
> > 2.34.1
> >