linux-kernel - Re: [PATCH v4 2/4] ASoC: dt-bindings: fsl,imx-asrc: update max interrupt numbers

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Message-ID: <ZejX0/FA/z4wa7cY@lizhi-Precision-Tower-5810>
Date: Wed, 6 Mar 2024 15:53:39 -0500
From: Frank Li <Frank.li@....com>
To: Rob Herring <robh@...nel.org>
Cc: Liam Girdwood <lgirdwood@...il.com>, Mark Brown <broonie@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>,
	Shengjiu Wang <shengjiu.wang@....com>, linux-sound@...r.kernel.org,
	devicetree@...r.kernel.org, imx@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 2/4] ASoC: dt-bindings: fsl,imx-asrc: update max
 interrupt numbers

On Wed, Mar 06, 2024 at 02:25:37PM -0600, Rob Herring wrote:
> On Tue, Mar 05, 2024 at 12:33:03PM -0500, Frank Li wrote:
> > fsl,imx8qxp-spdif and fsl,imx8qm-spdif have 2 interrupts. Other platforms
> > have 1 interrupt.
> > 
> > Increase max interrupt number to 2 and add restriction for platforms except
> > i.MX8QXP and i.MX8QM.
> > 
> > Signed-off-by: Frank Li <Frank.Li@....com>
> > ---
> >  Documentation/devicetree/bindings/sound/fsl,spdif.yaml | 18 +++++++++++++++++-
> >  1 file changed, 17 insertions(+), 1 deletion(-)
> > 
> > diff --git a/Documentation/devicetree/bindings/sound/fsl,spdif.yaml b/Documentation/devicetree/bindings/sound/fsl,spdif.yaml
> > index 56f8c0c8afdea..7f6590708e1ec 100644
> > --- a/Documentation/devicetree/bindings/sound/fsl,spdif.yaml
> > +++ b/Documentation/devicetree/bindings/sound/fsl,spdif.yaml
> > @@ -31,7 +31,8 @@ properties:
> >      maxItems: 1
> >  
> >    interrupts:
> > -    maxItems: 1
> > +    minItems: 1
> > +    maxItems: 2
> >  
> >    dmas:
> >      items:
> > @@ -101,6 +102,21 @@ required:
> >  additionalProperties: false
> >  
> >  allOf:
> > +  - if:
> > +      properties:
> > +        compatible:
> > +          enum:
> > +            - fsl,imx8qm-spdif
> > +            - fsl,imx8qxp-spdif
> > +    then:
> > +      properties:
> > +        interrupts:
> > +          minItems: 2
> 
> Nowhere is it explained what the 2 interrupts are or what the order of 
> them is. Is the first interrupt the same as before, and there is a new 
> interrupt for something else? Or it's the same interrupts, but they've 
> just split up into 2?

It is same one and split to tx and rx. Order doesn't matter. They uses one
irq handle.

Frank

> 
> Rob