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

Conor Dooley
2023-08-11T15:37:03Z

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On Fri, Aug 11, 2023 at 04:34:33PM +0100, Conor Dooley wrote:
> 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?

Or is it an am62p5, in which case the compatible should contain
ti,am62p5 I suppose. Sorry for my confusion here, its not really clear
me too since I've been seeing many different-but-similar product names
the last few days.

Thanks,
Conor.

>
> 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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