Re: [PATCH v4 1/2] dt-bindings: dma: add schema for altr,msgdma

[Stefan Roese <sr@xxxxxxx>]

On 29.04.21 16:16, Olivier Dautricourt wrote:
> - add schema for Altera mSGDMA bindings in devicetree.
> - add myself as 'Odd fixes' maintainer for this driver
>
> Signed-off-by: Olivier Dautricourt <olivier.dautricourt@xxxxxxxxxx>

Reviewed-by: Stefan Roese <sr@xxxxxxx>

Thanks,
Stefan

> ---
>
> Notes:
>      Changes in v2:
>       - fix reg size in dt example
>       - fix dt_binding check warning
>       - add list in MAINTAINERS entry
>
>      Changes from v2 to v3:
>       none
>
>      Changes from v3 to v4:
>       none
>
>   .../devicetree/bindings/dma/altr,msgdma.yaml  | 62 +++++++++++++++++++
>   MAINTAINERS                                   |  7 +++
>   2 files changed, 69 insertions(+)
>   create mode 100644 Documentation/devicetree/bindings/dma/altr,msgdma.yaml
>
> diff --git a/Documentation/devicetree/bindings/dma/altr,msgdma.yaml b/Documentation/devicetree/bindings/dma/altr,msgdma.yaml
> new file mode 100644
> index 000000000000..295e46c84bf9
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/dma/altr,msgdma.yaml
> @@ -0,0 +1,62 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/dma/altr,msgdma.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Altera mSGDMA IP core
> +
> +maintainers:
> +  - Olivier Dautricourt <olivier.dautricourt@xxxxxxxxxx>
> +
> +description: |
> +  Altera / Intel modular Scatter-Gather Direct Memory Access (mSGDMA)
> +  intellectual property (IP)
> +
> +allOf:
> +  - $ref: "dma-controller.yaml#"
> +
> +properties:
> +  compatible:
> +    const: altr,msgdma
> +
> +  reg:
> +    description:
> +      csr, desc, resp resgisters
> +    maxItems: 3
> +    minItems: 3
> +
> +  reg-names:
> +    items:
> +      - const: csr
> +      - const: desc
> +      - const: resp
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  "#dma-cells":
> +    description: |
> +      The dma controller discards the argument but one must be specified
> +      to keep compatibility with dma-controller schema.
> +    const: 1
> +
> +required:
> +  - compatible
> +  - reg
> +  - reg-names
> +  - interrupts
> +
> +unevaluatedProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/interrupt-controller/irq.h>
> +
> +    msgdma_controller: dma-controller@ff200b00 {
> +        compatible = "altr,msgdma";
> +        reg = <0xff200b00 0x100>, <0xff200c00 0x100>, <0xff200d00 0x100>;
> +        reg-names = "csr", "desc", "resp";
> +        interrupts = <0 67 IRQ_TYPE_LEVEL_HIGH>;
> +        #dma-cells = <1>;
> +    };
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 5c90148f0369..359ab4877024 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -782,6 +782,13 @@ M:	Ley Foon Tan <ley.foon.tan@xxxxxxxxx>
>   S:	Maintained
>   F:	drivers/mailbox/mailbox-altera.c
>
> +ALTERA MSGDMA IP CORE DRIVER
> +M:	Olivier Dautricourt <olivier.dautricourt@xxxxxxxxxx>
> +L:	dmaengine@xxxxxxxxxxxxxxx
> +S:	Odd Fixes
> +F:	Documentation/devicetree/bindings/dma/altr,msgdma.yaml
> +F:	drivers/dma/altera-msgdma.c
> +
>   ALTERA PIO DRIVER
>   M:	Joyce Ooi <joyce.ooi@xxxxxxxxx>
>   L:	linux-gpio@xxxxxxxxxxxxxxx
> --
> 2.31.0.rc2


Viele Grüße,
Stefan

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