linux-kernel - [PATCH V7 2/5] PM: domains: Add the domain HW-managed mode to the summary

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Message-ID: <20240624044809.17751-3-quic_jkona@quicinc.com>
Date: Mon, 24 Jun 2024 10:18:06 +0530
From: Jagadeesh Kona <quic_jkona@...cinc.com>
To: Bjorn Andersson <andersson@...nel.org>,
        Michael Turquette
	<mturquette@...libre.com>,
        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>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        "Rafael J .
 Wysocki" <rafael@...nel.org>,
        Kevin Hilman <khilman@...nel.org>, Pavel Machek
	<pavel@....cz>,
        Len Brown <len.brown@...el.com>,
        Greg Kroah-Hartman
	<gregkh@...uxfoundation.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        "Andy
 Gross" <agross@...nel.org>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        Abel Vesa <abel.vesa@...aro.org>
CC: <linux-pm@...r.kernel.org>, <linux-media@...r.kernel.org>,
        <linux-arm-msm@...r.kernel.org>, <linux-clk@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, Taniya Das <quic_tdas@...cinc.com>,
        "Jagadeesh Kona" <quic_jkona@...cinc.com>,
        Satya Priya Kakitapalli
	<quic_skakitap@...cinc.com>,
        Imran Shaik <quic_imrashai@...cinc.com>,
        "Ajit
 Pandey" <quic_ajipan@...cinc.com>, Dhruva Gole <d-gole@...com>
Subject: [PATCH V7 2/5] PM: domains: Add the domain HW-managed mode to the summary

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 under managed by column in debugfs.

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>
Reviewed-by: Dhruva Gole <d-gole@...com>
Reviewed-by: Taniya Das <quic_tdas@...cinc.com>
---
 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 a9a409b2d25c..7a61aa88c061 100644
--- a/drivers/pmdomain/core.c
+++ b/drivers/pmdomain/core.c
@@ -3184,6 +3184,15 @@ 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;
@@ -3242,6 +3251,7 @@ 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);
 	}
 
@@ -3258,8 +3268,8 @@ 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");
 
 	ret = mutex_lock_interruptible(&gpd_list_lock);
 	if (ret)
-- 
2.43.0