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Message-ID: <CAE3Oz825RQg25PxEbnb=ui7+MtH0ssS=i2HAQK-yOJo+v8JMMw@mail.gmail.com>
Date: Fri, 31 May 2024 16:43:52 +0530
From: Animesh Agarwal <animeshagarwal28@...il.com>
To: Krzysztof Kozlowski <krzk@...nel.org>
Cc: Vinod Koul <vkoul@...nel.org>, Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.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>, dmaengine@...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 v2] dt-bindings: dma: fsl,imx-dma: Convert to dtschema
On Fri, May 31, 2024 at 3:49 PM Krzysztof Kozlowski <krzk@...nel.org> wrote:
>
> On 31/05/2024 11:04, Animesh Agarwal wrote:
> > + "#dma-cells":
> > + const: 1
> > +
> > + dma-channels:
> > + maximum: 16
>
> maximum or const?
The txt binding says it should always be 16. Datasheet says this
device has 16 channels of DMA services. I thought specifying just the
maximum implies maximum=minimum=16. Sorry for missing the changelog in
this version it was cost in the v1 of this patch.
>
> deprecated: true
>
Shall it not be
"#dma-channels ":
deprecated: true
?
> > +
> > + dma-requests:
> > + description: Number of DMA requests supported.
>
> deprecated: true
>
Shall it not be
"#dma-requests ":
deprecated: true
?
> > +
> > +required:
> > + - compatible
> > + - reg
> > + - interrupts
> > + - "#dma-cells"
> > +
> > +additionalProperties: false
> > +
> > +examples:
> > + - |
> > + dma-controller@...01000 {
> > + compatible = "fsl,imx27-dma";
> > + reg = <0x10001000 0x1000>;
> > + interrupts = <32 33>;
> > + #dma-cells = <1>;
> > + dma-channels = <16>;
>
> and drop it from here
Is this really a deprecated property?
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