linux-kernel - Re: [PATCH 2/2 v3] tpm: separate cmd_ready/go_idle from runtime

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Message-ID: <20180219115221.7kd3ks7mrzmw36mz@linux.intel.com>
Date:   Mon, 19 Feb 2018 13:52:21 +0200
From:   Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
To:     Tomas Winkler <tomas.winkler@...el.com>
Cc:     Jason Gunthorpe <jgg@...pe.ca>,
        Alexander Usyskin <alexander.usyskin@...el.com>,
        linux-integrity@...r.kernel.org,
        linux-security-module@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2 v3] tpm: separate cmd_ready/go_idle from runtime_pm

On Wed, Feb 14, 2018 at 03:43:19PM +0200, Tomas Winkler wrote:
> We cannot use go_idle cmd_ready commands via runtime_pm handles
> as with the introduction of localities this is no longer an optional
> feature, while runtime pm can be not enabled.
> Though cmd_ready/go_idle provides power saving feature, it's also part of
> TPM2 protocol and should be called explicitly.
> This patch exposes cmd_read/go_idle via tpm class ops and removes
> runtime pm support as it is not used by any driver.
> 
> Signed-off-by: Tomas Winkler <tomas.winkler@...el.com>
> ---
> V2: resent
> V3: resent

Only the cover letter needs a backlog but the code change looks
good to me.

Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>

/Jarkko