Re: [PATCH v3 0/4] tpm/tpm_crb: implement power management.
From: Winkler, Tomas
Date: Wed Sep 14 2016 - 02:28:13 EST
On Mon, 2016-09-12 at 16:04 +0300, Tomas Winkler wrote:
> Te overall platform ability to enter a low power state is also
> conditioned on the ability of a tpm device to go to idle state.
> This series should provide this feature.
> Unfortunately, there is a HW bug on Intel PTT devices on Skylake,
> Kabylake, and Broxton devices, where certain registers lost retention
> during TPM idle state. Hence this implementation takes this into
> consideration and implement the feature based only on access to
> registers that retain their state. This still conforms to the spec
> and should be correct also on non Intle devices.
> V2: Utilize runtime_pm for driving tpm crb idle states.
> V3. fix lower case corruption in the first patch
Jarkko, had you chance to test v3 series one on your side, is this okay