Messages in this thread | | | From | Evan Green <> | Date | Sat, 17 Mar 2018 00:36:28 +0000 | Subject | Re: [PATCH v4 07/10] drivers: qcom: rpmh: cache sleep/wake state requests |
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On Fri, Mar 9, 2018 at 3:27 PM Lina Iyer <ilina@codeaurora.org> wrote:
> Active state requests are sent immediately to the mailbox controller, > while sleep and wake state requests are cached in this driver to avoid > taxing the mailbox controller repeatedly. The cached values will be sent > to the controller when the rpmh_flush() is called.
> Generally, flushing is a system PM activity and may be called from the > system PM drivers when the system is entering suspend or deeper sleep > modes during cpuidle.
> Also allow invalidating the cached requests, so they may be re-populated > again.
> Signed-off-by: Lina Iyer <ilina@codeaurora.org> > ---
> Changes in v4: > - remove locking for ->dirty in invalidate > - fix send_single > Changes in v3: > - Remove locking for flush function > - Improve comments > --- > drivers/soc/qcom/rpmh.c | 203 +++++++++++++++++++++++++++++++++++++++++++++++- > include/soc/qcom/rpmh.h | 10 +++ > 2 files changed, 212 insertions(+), 1 deletion(-)
Reviewed-by: Evan Green <evgreen@chromium.org>
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