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    SubjectRe: [PATCH AUTOSEL 5.4 277/350] tpm: Add a flag to indicate TPM power is managed by firmware
    On Wed, Dec 11, 2019 at 9:57 AM Jarkko Sakkinen
    <jarkko.sakkinen@linux.intel.com> wrote:
    >
    > On Tue, Dec 10, 2019 at 01:32:15PM -0800, Guenter Roeck wrote:
    > > On Tue, Dec 10, 2019 at 1:12 PM Sasha Levin <sashal@kernel.org> wrote:
    > > >
    > > > From: Stephen Boyd <swboyd@chromium.org>
    > > >
    > > > [ Upstream commit 2e2ee5a2db06c4b81315514b01d06fe5644342e9 ]
    > > >
    > > > On some platforms, the TPM power is managed by firmware and therefore we
    > > > don't need to stop the TPM on suspend when going to a light version of
    > > > suspend such as S0ix ("freeze" suspend state). Add a chip flag,
    > > > TPM_CHIP_FLAG_FIRMWARE_POWER_MANAGED, to indicate this so that certain
    > > > platforms can probe for the usage of this light suspend and avoid
    > > > touching the TPM state across suspend/resume.
    > > >
    > >
    > > Are the patches needed to support CR50 (which need this patch) going
    > > to be applied to v5.4.y as well ? If not, what is the purpose of
    > > applying this patch to v5.4.y ?
    > >
    > > Thanks,
    > > Guenter
    >
    > Thanks Guenter. I think not.
    >
    Thought so. In that case this patch should be dropped.

    Guenter

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