PM: domains: Add the domain HW-managed mode to the summary

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@quicinc.com>
Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
Signed-off-by: Jagadeesh Kona <quic_jkona@quicinc.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Bjorn Andersson <andersson@kernel.org>
Reviewed-by: Dhruva Gole <d-gole@ti.com>
Reviewed-by: Taniya Das <quic_tdas@quicinc.com>
Link: https://lore.kernel.org/r/20240624044809.17751-3-quic_jkona@quicinc.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

diff --git a/drivers/pmdomain/core.c b/drivers/pmdomain/core.c
index a9a409b2d25c5f37f74ced27b9ccec40ce90fe41..7a61aa88c0614a9bf02753e2331a243de7d94e8b 100644 (file)
--- 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)