linux-kernel - [PATCH V2 03/30] cpufreq: dt: Migrate to dev_pm_opp_set

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Date:   Fri,  1 Jul 2022 13:49:58 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     "Rafael J. Wysocki" <rafael@...nel.org>,
        Viresh Kumar <viresh.kumar@...aro.org>
Cc:     linux-pm@...r.kernel.org,
        Vincent Guittot <vincent.guittot@...aro.org>,
        Stephen Boyd <sboyd@...nel.org>, Nishanth Menon <nm@...com>,
        Dmitry Osipenko <dmitry.osipenko@...labora.com>,
        linux-kernel@...r.kernel.org
Subject: [PATCH V2 03/30] cpufreq: dt: Migrate to dev_pm_opp_set_config()

The OPP core now provides a unified API for setting all configuration
types, i.e. dev_pm_opp_set_config().

Lets start using it.

Tested-by: Dmitry Osipenko <dmitry.osipenko@...labora.com>
Signed-off-by: Viresh Kumar <viresh.kumar@...aro.org>
---
 drivers/cpufreq/cpufreq-dt.c | 20 ++++++++++++--------
 1 file changed, 12 insertions(+), 8 deletions(-)

diff --git a/drivers/cpufreq/cpufreq-dt.c b/drivers/cpufreq/cpufreq-dt.c
index 8fcaba541539..9e25bf86e512 100644
--- a/drivers/cpufreq/cpufreq-dt.c
+++ b/drivers/cpufreq/cpufreq-dt.c
@@ -29,8 +29,8 @@ struct private_data {
 
 	cpumask_var_t cpus;
 	struct device *cpu_dev;
-	struct opp_table *opp_table;
 	struct cpufreq_frequency_table *freq_table;
+	int opp_token;
 	bool have_static_opps;
 };
 
@@ -220,12 +220,16 @@ static int dt_cpufreq_early_init(struct device *dev, int cpu)
 	 */
 	reg_name = find_supply_name(cpu_dev);
 	if (reg_name) {
-		priv->opp_table = dev_pm_opp_set_regulators(cpu_dev, &reg_name,
-							    1);
-		if (IS_ERR(priv->opp_table)) {
-			ret = PTR_ERR(priv->opp_table);
+		struct dev_pm_opp_config config = {
+			.regulator_names = &reg_name,
+			.regulator_count = 1,
+		};
+
+		priv->opp_token = dev_pm_opp_set_config(cpu_dev, &config);
+		if (priv->opp_token < 0) {
+			ret = priv->opp_token;
 			if (ret != -EPROBE_DEFER)
-				dev_err(cpu_dev, "failed to set regulators: %d\n",
+				dev_err(cpu_dev, "failed to set OPP config: %d\n",
 					ret);
 			goto free_cpumask;
 		}
@@ -295,7 +299,7 @@ static int dt_cpufreq_early_init(struct device *dev, int cpu)
 out:
 	if (priv->have_static_opps)
 		dev_pm_opp_of_cpumask_remove_table(priv->cpus);
-	dev_pm_opp_put_regulators(priv->opp_table);
+	dev_pm_opp_clear_config(priv->opp_token);
 free_cpumask:
 	free_cpumask_var(priv->cpus);
 	return ret;
@@ -309,7 +313,7 @@ static void dt_cpufreq_release(void)
 		dev_pm_opp_free_cpufreq_table(priv->cpu_dev, &priv->freq_table);
 		if (priv->have_static_opps)
 			dev_pm_opp_of_cpumask_remove_table(priv->cpus);
-		dev_pm_opp_put_regulators(priv->opp_table);
+		dev_pm_opp_clear_config(priv->opp_token);
 		free_cpumask_var(priv->cpus);
 		list_del(&priv->node);
 	}
-- 
2.31.1.272.g89b43f80a514