linux-kernel - Re: [PATCH V5 2/5] PM: domains: Add the domain HW-managed mode to the summary

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Date: Mon, 18 Mar 2024 11:35:17 +0530
From: Dhruva Gole <d-gole@...com>
To: Jagadeesh Kona <quic_jkona@...cinc.com>
CC: "Rafael J . Wysocki" <rafael@...nel.org>,
        Kevin Hilman
	<khilman@...nel.org>,
        Ulf Hansson <ulf.hansson@...aro.org>, Pavel Machek
	<pavel@....cz>,
        Len Brown <len.brown@...el.com>,
        Greg Kroah-Hartman
	<gregkh@...uxfoundation.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad
 Dybcio <konrad.dybcio@...aro.org>,
        Michael Turquette
	<mturquette@...libre.com>,
        Andy Gross <agross@...nel.org>, Stephen Boyd
	<sboyd@...nel.org>,
        Stanimir Varbanov <stanimir.k.varbanov@...il.com>,
        Vikash
 Garodia <quic_vgarodia@...cinc.com>,
        "Bryan O'Donoghue"
	<bryan.odonoghue@...aro.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        Abel Vesa
	<abel.vesa@...aro.org>, Taniya Das <quic_tdas@...cinc.com>,
        <linux-arm-msm@...r.kernel.org>, <linux-clk@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-media@...r.kernel.org>,
        <linux-pm@...r.kernel.org>, Imran Shaik <quic_imrashai@...cinc.com>,
        Ajit
 Pandey <quic_ajipan@...cinc.com>
Subject: Re: [PATCH V5 2/5] PM: domains: Add the domain HW-managed mode to
 the summary

On Mar 15, 2024 at 16:40:43 +0530, Jagadeesh Kona wrote:
> From: Abel Vesa <abel.vesa@...aro.org>
> 
> Now that genpd supports dynamically switching the control for an
> attached device between hardware- and software-mode,  let's add this
> information to the genpd summary in debugfs.

"under managed by column" would be good to add as well

> 
> Suggested-by: Taniya Das <quic_tdas@...cinc.com>
> Signed-off-by: Abel Vesa <abel.vesa@...aro.org>
> Signed-off-by: Jagadeesh Kona <quic_jkona@...cinc.com>
> Reviewed-by: Ulf Hansson <ulf.hansson@...aro.org>
> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
> Reviewed-by: Bjorn Andersson <andersson@...nel.org>
> ---
>  drivers/pmdomain/core.c | 14 ++++++++++++--
>  1 file changed, 12 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/pmdomain/core.c b/drivers/pmdomain/core.c
> index 70d8634dd9e8..18a101215c9c 100644
> --- a/drivers/pmdomain/core.c
> +++ b/drivers/pmdomain/core.c
> @@ -3173,6 +3173,15 @@ static void rtpm_status_str(struct seq_file *s, struct device *dev)
>  	seq_printf(s, "%-25s  ", p);
>  }
>  
> +static void mode_status_str(struct seq_file *s, struct device *dev)
> +{
> +	struct generic_pm_domain_data *gpd_data;
> +
> +	gpd_data = to_gpd_data(dev->power.subsys_data->domain_data);
> +
> +	seq_printf(s, "%20s", gpd_data->hw_mode ? "HW" : "SW");
> +}
> +
>  static void perf_status_str(struct seq_file *s, struct device *dev)
>  {
>  	struct generic_pm_domain_data *gpd_data;
> @@ -3231,6 +3240,7 @@ static int genpd_summary_one(struct seq_file *s,
>  		seq_printf(s, "\n    %-50s  ", kobj_path);
>  		rtpm_status_str(s, pm_data->dev);
>  		perf_status_str(s, pm_data->dev);
> +		mode_status_str(s, pm_data->dev);
>  		kfree(kobj_path);
>  	}
>  
> @@ -3247,8 +3257,8 @@ static int summary_show(struct seq_file *s, void *data)
>  	int ret = 0;
>  
>  	seq_puts(s, "domain                          status          children                           performance\n");
> -	seq_puts(s, "    /device                                             runtime status\n");
> -	seq_puts(s, "----------------------------------------------------------------------------------------------\n");
> +	seq_puts(s, "    /device                                             runtime status                           managed by\n");
> +	seq_puts(s, "------------------------------------------------------------------------------------------------------------\n");

LGTM,

Reviewed-by: Dhruva Gole <d-gole@...com>

-- 
Best regards,
Dhruva Gole <d-gole@...com>