On Thu, Dec 19, 2024 at 12:24:12PM +0200, Larisa Grigore wrote:
> Introduce the compatible strings 'nxp,s32g2-edma' and 'nxp,s32g3-edma' to
> enable the support for the eDMAv3 present on S32G2/S32G3 platforms.
>
> The S32G2/S32G3 eDMA architecture features 32 DMA channels. Each of the
> two eDMA instances is integrated with two DMAMUX blocks.
>
> Another particularity of these SoCs is that the interrupts are shared
> between channels in the following way:
> - DMA Channels 0-15 share the 'tx-0-15' interrupt
> - DMA Channels 16-31 share the 'tx-16-31' interrupt
> - all channels share the 'err' interrupt
>
> Signed-off-by: Larisa Grigore <larisa.grigore@oss.nxp.com>
> Reviewed-by: Frank Li <Frank.Li@nxp.com>
> ---
> .../devicetree/bindings/dma/fsl,edma.yaml | 34 +++++++++++++++++++
> 1 file changed, 34 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/dma/fsl,edma.yaml b/Documentation/devicetree/bindings/dma/fsl,edma.yaml
> index d54140f18d34..4f925469533e 100644
> --- a/Documentation/devicetree/bindings/dma/fsl,edma.yaml
> +++ b/Documentation/devicetree/bindings/dma/fsl,edma.yaml
> @@ -26,9 +26,13 @@ properties:
> - fsl,imx93-edma3
> - fsl,imx93-edma4
> - fsl,imx95-edma5
> + - nxp,s32g2-edma
> - items:
> - const: fsl,ls1028a-edma
> - const: fsl,vf610-edma
> + - items:
> + - const: nxp,s32g3-edma
> + - const: nxp,s32g2-edma
>
> reg:
> minItems: 1
> @@ -221,6 +225,36 @@ allOf:
> properties:
> power-domains: false
>
> + - if:
> + properties:
> + compatible:
> + contains:
> + const: nxp,s32g2-edma
Your property ordering below is a bit odd, but it matches what exists
currently so
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Cheers,
Conor.
> + then:
> + properties:
> + clocks:
> + minItems: 2
> + maxItems: 2
> + clock-names:
> + items:
> + - const: dmamux0
> + - const: dmamux1
> + interrupts:
> + minItems: 3
> + maxItems: 3
> + interrupt-names:
> + items:
> + - const: tx-0-15
> + - const: tx-16-31
> + - const: err
> + reg:
> + minItems: 3
> + maxItems: 3
> + "#dma-cells":
> + const: 2
> + dma-channels:
> + const: 32
> +
> unevaluatedProperties: false
>
> examples:
> --
> 2.47.0
>