Re: [PATCH v2 3/6] dt-bindings: crypto: Add Texas Instruments MCRC64

Conor Dooley
2023-08-11T15:34:56Z

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On Fri, Aug 11, 2023 at 12:58:50AM +0530, Kamlesh Gurudasani wrote:
> Add binding for Texas Instruments MCRC64
>
> MCRC64 engine calculates 64-bit cyclic redundancy checks (CRC)
> according to the ISO 3309 standard.
>
> The ISO 3309 64-bit CRC model parameters are as follows:
> Generator Polynomial: x^64 + x^4 + x^3 + x + 1
> Polynomial Value: 0x000000000000001B
> Initial value: 0x0000000000000000
> Reflected Input: False
> Reflected Output: False
> Xor Final: 0x0000000000000000
>
> Signed-off-by: Kamlesh Gurudasani <kamlesh@ti.com>
> ---
> Documentation/devicetree/bindings/crypto/ti,mcrc64.yaml | 47 +++++++++++++++++++++++++++++++++++++++++++++++
> MAINTAINERS | 5 +++++
> 2 files changed, 52 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/crypto/ti,mcrc64.yaml b/Documentation/devicetree/bindings/crypto/ti,mcrc64.yaml
> new file mode 100644
> index 000000000000..38bc7efebd68
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/crypto/ti,mcrc64.yaml
> @@ -0,0 +1,47 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/crypto/ti,mcrc64.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Texas Instruments MCRC64
> +
> +description: The MCRC64 engine calculates 64-bit cyclic redundancy checks

A newline after "description" please.

> + (CRC) according to the ISO 3309 standard.
> +
> +maintainers:
> + - Kamlesh Gurudasani <kamlesh@ti.com>
> +
> +properties:
> + compatible:
> + const: ti,am62-mcrc64

Is the am62 an SoC or a family of SoCs? I googled a wee bit for am62 &
there seems to be an am625 and an am623?

Otherwise, this looks good to me.

> +
> + reg:
> + maxItems: 1
> +
> + clocks:
> + maxItems: 1
> +
> + power-domains:
> + maxItems: 1
> +
> +required:
> + - compatible
> + - reg
> + - clocks
> + - power-domains
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/soc/ti,sci_pm_domain.h>
> +
> + crc@30300000 {
> + compatible = "ti,am62-mcrc64";
> + reg = <0x30300000 0x1000>;
> + clocks = <&k3_clks 116 0>;
> + power-domains = <&k3_pds 116 TI_SCI_PD_EXCLUSIVE>;
> + };
> +
> +...
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 02a3192195af..66b51f43d196 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -21481,6 +21481,11 @@ S: Maintained
> F: Documentation/devicetree/bindings/iio/adc/ti,lmp92064.yaml
> F: drivers/iio/adc/ti-lmp92064.c
>
> +TI MEMORY CYCLIC REDUNDANCY CHECK (MCRC64) DRIVER
> +M: Kamlesh Gurudasani <kamlesh@ti.com>
> +S: Maintained
> +F: Documentation/devicetree/bindings/crypto/ti,mcrc64.yaml
> +
> TI PCM3060 ASoC CODEC DRIVER
> M: Kirill Marinushkin <kmarinushkin@birdec.com>
> L: alsa-devel@alsa-project.org (moderated for non-subscribers)
>
> --
> 2.34.1
>

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