linux-kernel - Re: [PATCH v7 10/10] soc: qcom: rpmhpd: Mark mx as a parent for cx

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Date:   Wed, 12 Dec 2018 10:25:29 -0800
From:   Stephen Boyd <swboyd@...omium.org>
To:     Rajendra Nayak <rnayak@...eaurora.org>, andy.gross@...aro.org,
        collinsd@...eaurora.org, mka@...omium.org, robh@...nel.org,
        ulf.hansson@...aro.org, viresh.kumar@...aro.org
Cc:     devicetree@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Rajendra Nayak <rnayak@...eaurora.org>
Subject: Re: [PATCH v7 10/10] soc: qcom: rpmhpd: Mark mx as a parent for cx

Quoting Rajendra Nayak (2018-12-12 01:21:31)
> Specify the active + sleep and active-only MX power domains as
> the parents of the corresponding CX power domains. This will ensure that
> performance state requests on CX automatically generate equivalent requests
> on MX power domains.
> 
> This is used to enforce a requirement that exists for various
> hardware blocks on SDM845 that MX performance state >= CX performance
> state for a given operating frequency.
> 
> Signed-off-by: Rajendra Nayak <rnayak@...eaurora.org>
> Acked-by: Viresh Kumar <viresh.kumar@...aro.org>
> ---

Reviewed-by: Stephen Boyd <swboyd@...omium.org>