linux-kernel - Re: [PATCH v4 RESEND 1/2] Documentation: tpm: add powered-while-suspended binding documentation

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Date:   Mon, 3 Jul 2017 15:57:35 +0300
From:   Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
To:     Enric Balletbo i Serra <enric.balletbo@...labora.com>
Cc:     Rob Herring <robh+dt@...nel.org>, Peter Huewe <peterhuewe@....de>,
        tpmdd-devel@...ts.sourceforge.net, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, Mark Rutland <mark.rutland@....com>,
        Jason Gunthorpe <jgunthorpe@...idianresearch.com>,
        Sonny Rao <sonnyrao@...omium.org>, groeck@...omium.org
Subject: Re: [PATCH v4 RESEND 1/2] Documentation: tpm: add
 powered-while-suspended binding documentation

On Tue, Jun 27, 2017 at 12:27:23PM +0200, Enric Balletbo i Serra wrote:
> Add a new powered-while-suspended property to control the behavior of the
> TPM suspend/resume.
> 
> Signed-off-by: Enric Balletbo i Serra <enric.balletbo@...labora.com>
> Signed-off-by: Sonny Rao <sonnyrao@...omium.org>
> Reviewed-by: Jason Gunthorpe <jgunthorpe@...idianresearch.com>
> Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
> Acked-by: Rob Herring <robh@...nel.org>
> ---
> Changes since v3.
>   - Rebased on top of linux-next
>  Rob Herring
>   - Split DT binding from code patch as is preferred. 
> 
> Did not exist on previous versions.
> 
>  Documentation/devicetree/bindings/security/tpm/tpm-i2c.txt | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/security/tpm/tpm-i2c.txt b/Documentation/devicetree/bindings/security/tpm/tpm-i2c.txt
> index 8cb638b..85c8216 100644
> --- a/Documentation/devicetree/bindings/security/tpm/tpm-i2c.txt
> +++ b/Documentation/devicetree/bindings/security/tpm/tpm-i2c.txt
> @@ -8,6 +8,12 @@ Required properties:
>                     the firmware event log
>  - linux,sml-size : size of the memory allocated for the firmware event log
>  
> +Optional properties:
> +
> +- powered-while-suspended: present when the TPM is left powered on between
> +                           suspend and resume (makes the suspend/resume
> +                           callbacks do nothing).
> +
>  Example (for OpenPower Systems with Nuvoton TPM 2.0 on I2C)
>  ----------------------------------------------------------
>  
> -- 
> 2.9.3
> 

So... should I apply this?

/Jarkko