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Re: [PATCH 1/2] tpm: devicetree: document properties for cr50

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On Thu, Jul 14, 2016 at 7:20 PM, Andrey Pronin <apronin@chromium.org> wrote:
> Add TPM2.0-compatible interface to Cr50. Document its properties
> in devicetree.
>
> Signed-off-by: Andrey Pronin <apronin@chromium.org>
> ---
>  .../devicetree/bindings/security/tpm/cr50_spi.txt  | 30 ++++++++++++++++++++++
>  1 file changed, 30 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/security/tpm/cr50_spi.txt
>
> diff --git a/Documentation/devicetree/bindings/security/tpm/cr50_spi.txt b/Documentation/devicetree/bindings/security/tpm/cr50_spi.txt
> new file mode 100644
> index 0000000..1b05e51
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/security/tpm/cr50_spi.txt
> @@ -0,0 +1,30 @@
> +* Cr50 Chip on SPI.
> +
> +TCG PTP FIFO Compliant Interface to Cr50 on SPI bus.
> +
> +Required properties:
> +- compatible: Should be "google,cr50_spi".

google,cr50, maybe ? The "_spi" seems redundant.

Also, I agree with comments from others - the term cr50 really needs
an explanation (Google thinks that it is a motor bike, a scanner, or a
coffee roaster).

Thanks,
Guenter

> +- spi-max-frequency: Maximum SPI frequency.
> +
> +Optional properties:
> +- access-delay-msec: Required delay between subsequent transactions on SPI.
> +- sleep-delay-msec: Time after the last SPI activity, after which the chip
> +  may go to sleep.
> +- wake-start-delay-msec: Time after initiating wake up before the chip is
> +  ready to accept commands over SPI.
> +
> +Example:
> +
> +&spi0 {
> +        status = "okay";
> +
> +        cr50@0 {
> +                compatible = "google,cr50_spi";
> +                reg = <0>;
> +                spi-max-frequency = <800000>;
> +
> +                access-delay-msec = <2>;
> +                sleep-delay-msec = <1000>;
> +                wake-start-delay-msec = <60>;
> +        };
> +};
> --
> 2.6.6
>

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[PATCH 0/2] tpm: add driver for cr50 on SPI Andrey Pronin <apronin@chromium.org> - 2016-07-15 04:30 +0200
  [PATCH 1/2] tpm: devicetree: document properties for cr50 Andrey Pronin <apronin@chromium.org> - 2016-07-15 04:30 +0200
    Re: [PATCH 1/2] tpm: devicetree: document properties for cr50 Guenter Roeck <groeck@google.com> - 2016-07-15 06:10 +0200
      Re: [PATCH 1/2] tpm: devicetree: document properties for cr50 Andrey Pronin <apronin@chromium.org> - 2016-07-15 19:40 +0200
        Re: [PATCH 1/2] tpm: devicetree: document properties for cr50 Guenter Roeck <groeck@google.com> - 2016-07-15 20:30 +0200
    Re: [PATCH 1/2] tpm: devicetree: document properties for cr50 Rob Herring <robh@kernel.org> - 2016-07-17 15:30 +0200
  [PATCH 2/2] tpm: add driver for cr50 on SPI Andrey Pronin <apronin@chromium.org> - 2016-07-15 04:30 +0200
    Re: [PATCH 2/2] tpm: add driver for cr50 on SPI Jason Gunthorpe <jgunthorpe@obsidianresearch.com> - 2016-07-15 05:40 +0200
      Re: [PATCH 2/2] tpm: add driver for cr50 on SPI Andrey Pronin <apronin@chromium.org> - 2016-07-15 05:50 +0200
        Re: [PATCH 2/2] tpm: add driver for cr50 on SPI Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> - 2016-07-19 15:00 +0200
          Re: [PATCH 2/2] tpm: add driver for cr50 on SPI Andrey Pronin <apronin@chromium.org> - 2016-07-20 02:30 +0200
            Re: [PATCH 2/2] tpm: add driver for cr50 on SPI Jason Gunthorpe <jgunthorpe@obsidianresearch.com> - 2016-07-20 19:10 +0200
              Re: [PATCH 2/2] tpm: add driver for cr50 on SPI Andrey Pronin <apronin@chromium.org> - 2016-07-21 20:20 +0200
                Re: [PATCH 2/2] tpm: add driver for cr50 on SPI Jason Gunthorpe <jgunthorpe@obsidianresearch.com> - 2016-07-21 23:10 +0200
  Re: [PATCH 0/2] tpm: add driver for cr50 on SPI Peter Huewe <peterhuewe@gmx.de> - 2016-07-15 04:30 +0200
    Re: [PATCH 0/2] tpm: add driver for cr50 on SPI Andrey Pronin <apronin@chromium.org> - 2016-07-15 05:00 +0200
      Re: [PATCH 0/2] tpm: add driver for cr50 on SPI Jason Gunthorpe <jgunthorpe@obsidianresearch.com> - 2016-07-15 05:30 +0200
        Re: [PATCH 0/2] tpm: add driver for cr50 on SPI Andrey Pronin <apronin@chromium.org> - 2016-07-15 19:20 +0200
  Re: [PATCH 0/2] tpm: add driver for cr50 on SPI Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> - 2016-07-19 15:00 +0200
  [PATCH v2 1/2] tpm: devicetree: document properties for cr50 Andrey Pronin <apronin@chromium.org> - 2016-07-20 05:50 +0200
    Re: [PATCH v2 1/2] tpm: devicetree: document properties for cr50 Rob Herring <robh@kernel.org> - 2016-07-20 21:10 +0200
      Re: [PATCH v2 1/2] tpm: devicetree: document properties for cr50 Andrey Pronin <apronin@chromium.org> - 2016-07-20 21:50 +0200
        Re: [PATCH v2 1/2] tpm: devicetree: document properties for cr50 Jason Gunthorpe <jgunthorpe@obsidianresearch.com> - 2016-07-20 22:00 +0200
        Re: [PATCH v2 1/2] tpm: devicetree: document properties for cr50 Rob Herring <robh@kernel.org> - 2016-07-21 23:10 +0200
  [PATCH v2 0/2] tpm: add driver for cr50 on SPI Andrey Pronin <apronin@chromium.org> - 2016-07-20 05:50 +0200
    [PATCH v2 2/2] tpm: add driver for cr50 on SPI Andrey Pronin <apronin@chromium.org> - 2016-07-20 05:50 +0200
    Aw: [PATCH v2 0/2] tpm: add driver for cr50 on SPI "Peter Huewe" <PeterHuewe@gmx.de> - 2016-07-25 19:10 +0200

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