linux-kernel - RE: [PATCH v3 1/3] dt-bindings: dmaengine: Add compatible for Tegra234

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Date:   Tue, 19 Jul 2022 07:41:43 +0000
From:   Akhil R <akhilrajeev@...dia.com>
To:     Rob Herring <robh@...nel.org>
CC:     "dmaengine@...r.kernel.org" <dmaengine@...r.kernel.org>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Laxman Dewangan <ldewangan@...dia.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-tegra@...r.kernel.org" <linux-tegra@...r.kernel.org>,
        "p.zabel@...gutronix.de" <p.zabel@...gutronix.de>,
        "thierry.reding@...il.com" <thierry.reding@...il.com>,
        "vkoul@...nel.org" <vkoul@...nel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>
Subject: RE: [PATCH v3 1/3] dt-bindings: dmaengine: Add compatible for
 Tegra234

> On Mon, Jul 11, 2022 at 09:15:34PM +0530, Akhil R wrote:
> > Document the compatible string used by GPCDMA controller for Tegra234.
> >
> > Signed-off-by: Akhil R <akhilrajeev@...dia.com>
> > ---
> >  .../devicetree/bindings/dma/nvidia,tegra186-gpc-dma.yaml      | 4 ++++
> >  1 file changed, 4 insertions(+)
> >
> > diff --git a/Documentation/devicetree/bindings/dma/nvidia,tegra186-gpc-
> dma.yaml b/Documentation/devicetree/bindings/dma/nvidia,tegra186-gpc-
> dma.yaml
> > index 9dd1476d1849..399edcd5cecf 100644
> > --- a/Documentation/devicetree/bindings/dma/nvidia,tegra186-gpc-dma.yaml
> > +++ b/Documentation/devicetree/bindings/dma/nvidia,tegra186-gpc-
> dma.yaml
> > @@ -26,6 +26,10 @@ properties:
> >            - const: nvidia,tegra194-gpcdma
> >            - const: nvidia,tegra186-gpcdma
> >
> > +      - items:
> > +          - const: nvidia,tegra234-gpcdma
> 
> This can be added to the above entry changing it from a const to enum.
> 
So, it could look like this, correct?

  compatible:
    oneOf:
      - const: nvidia,tegra186-gpcdma
      - items:
          - enum:
              - nvidia,tegra234-gpcdma
              - nvidia,tegra194-gpcdma
          - const: nvidia,tegra186-gpcdma

Tried dt_binding_check and dtbs_check with this change and did not see any error.

Regards,
Akhil

--
nvpublic