linux-kernel - Re: [PATCH v6 2/6] soc: qcom: rpmhpd: Introduce function to retrieve power domain performance state count

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Date:   Tue, 16 Jun 2020 11:21:27 +0200
From:   Ulf Hansson <ulf.hansson@...aro.org>
To:     Thara Gopinath <thara.gopinath@...aro.org>
Cc:     Zhang Rui <rui.zhang@...el.com>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Andy Gross <agross@...nel.org>, Rob Herring <robh@...nel.org>,
        Amit Kucheria <amit.kucheria@...durent.com>,
        Mark Rutland <mark.rutland@....com>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Linux PM <linux-pm@...r.kernel.org>,
        DTML <devicetree@...r.kernel.org>,
        linux-arm-msm <linux-arm-msm@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v6 2/6] soc: qcom: rpmhpd: Introduce function to retrieve
 power domain performance state count

On Thu, 4 Jun 2020 at 03:53, Thara Gopinath <thara.gopinath@...aro.org> wrote:
>
> Populate .get_performance_state_count in genpd ops to retrieve the count of
> performance states supported by a rpmh power domain.
>
> Signed-off-by: Thara Gopinath <thara.gopinath@...aro.org>
> Reviewed-by: Bjorn Andersson <bjorn.andersson@...aro.org>

Reviewed-by: Ulf Hansson <ulf.hansson@...aro.org>

Kind regards
Uffe


> ---
>  drivers/soc/qcom/rpmhpd.c | 8 ++++++++
>  1 file changed, 8 insertions(+)
>
> diff --git a/drivers/soc/qcom/rpmhpd.c b/drivers/soc/qcom/rpmhpd.c
> index e72426221a69..a9c597143525 100644
> --- a/drivers/soc/qcom/rpmhpd.c
> +++ b/drivers/soc/qcom/rpmhpd.c
> @@ -362,6 +362,13 @@ static unsigned int rpmhpd_get_performance_state(struct generic_pm_domain *genpd
>         return dev_pm_opp_get_level(opp);
>  }
>
> +static int rpmhpd_performance_states_count(struct generic_pm_domain *domain)
> +{
> +       struct rpmhpd *pd = domain_to_rpmhpd(domain);
> +
> +       return pd->level_count;
> +}
> +
>  static int rpmhpd_update_level_mapping(struct rpmhpd *rpmhpd)
>  {
>         int i;
> @@ -450,6 +457,7 @@ static int rpmhpd_probe(struct platform_device *pdev)
>                 rpmhpds[i]->pd.power_on = rpmhpd_power_on;
>                 rpmhpds[i]->pd.set_performance_state = rpmhpd_set_performance_state;
>                 rpmhpds[i]->pd.opp_to_performance_state = rpmhpd_get_performance_state;
> +               rpmhpds[i]->pd.get_performance_state_count = rpmhpd_performance_states_count;
>                 pm_genpd_init(&rpmhpds[i]->pd, NULL, true);
>
>                 data->domains[i] = &rpmhpds[i]->pd;
> --
> 2.20.1
>