linux-kernel - Re: [PATCH v5 07/10] drivers: qcom: rpmh: cache sleep/wake state requests

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Date:   Wed, 18 Apr 2018 23:12:09 -0700
From:   Stephen Boyd <swboyd@...omium.org>
To:     Lina Iyer <ilina@...eaurora.org>, andy.gross@...aro.org,
        david.brown@...aro.org, linux-arm-msm@...r.kernel.org,
        linux-soc@...r.kernel.org
Cc:     rnayak@...eaurora.org, bjorn.andersson@...aro.org,
        linux-kernel@...r.kernel.org, evgreen@...omium.org,
        dianders@...omium.org, Lina Iyer <ilina@...eaurora.org>
Subject: Re: [PATCH v5 07/10] drivers: qcom: rpmh: cache sleep/wake state requests

Quoting Lina Iyer (2018-04-05 09:18:31)
> Active state requests are sent immediately to the mailbox controller,

Drive by note, mailbox went away from this code so grep 'mailbox' or
'mbox' on these patches should come up with zero hits.

> 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.
>