Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > linux.kernel > #1482954

Re: [PATCH v3 0/4] tpm/tpm_crb: implement power management.

From "Winkler, Tomas" <tomas.winkler@intel.com>
Newsgroups linux.kernel
Subject Re: [PATCH v3 0/4] tpm/tpm_crb: implement power management.
Date 2016-09-14 08:30 +0200
Message-ID <shbRL-5F6-5@gated-at.bofh.it> (permalink)
References <sgz9L-3JB-5@gated-at.bofh.it>
Organization linux.* mail to news gateway

Show all headers | View raw


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
to go?

Thanks
Tomas

Back to linux.kernel | Previous | NextPrevious in thread | Next in thread | Find similar | Unroll thread


Thread

[PATCH v3 0/4] tpm/tpm_crb: implement power management. Tomas Winkler <tomas.winkler@intel.com> - 2016-09-12 15:10 +0200
  [PATCH v3 3/4] tpm/tpm_crb: open code the crb_init into acpi_add Tomas Winkler <tomas.winkler@intel.com> - 2016-09-12 15:10 +0200
    Re: [PATCH v3 3/4] tpm/tpm_crb: open code the crb_init into acpi_add Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> - 2016-09-15 08:30 +0200
  Re: [PATCH v3 0/4] tpm/tpm_crb: implement power management. "Winkler, Tomas" <tomas.winkler@intel.com> - 2016-09-14 08:30 +0200
    Re: [PATCH v3 0/4] tpm/tpm_crb: implement power management. Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> - 2016-09-14 18:10 +0200
      Re: [PATCH v3 0/4] tpm/tpm_crb: implement power management. Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> - 2016-09-14 18:10 +0200
        Re: [PATCH v3 0/4] tpm/tpm_crb: implement power management. Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> - 2016-09-14 20:30 +0200

csiph-web