[PATCH 2/3] tpm: separate cmd_ready/go_idle from runtime_pm

Jason Gunthorpe jgg at ziepe.ca
Tue Jan 23 15:33:22 UTC 2018

On Tue, Jan 23, 2018 at 03:08:41PM +0200, Jarkko Sakkinen wrote:
> On Tue, Jan 23, 2018 at 01:27:30PM +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 at intel.com>
> Thank you.
> Jason, what do you think?

The PM stuff has been the source of confusion for a while, seems
reasonable to get rid of it.

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