linux-kernel - [PATCH V2 08/30] cpufreq: tegra20: Migrate to dev_pm_opp_set

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Message-Id: <1a6fb3ccfb18b82c062ca587422e100064814f4d.1656660185.git.viresh.kumar@linaro.org>
Date:   Fri,  1 Jul 2022 13:50:03 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     "Rafael J. Wysocki" <rafael@...nel.org>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>
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-tegra@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH V2 08/30] cpufreq: tegra20: 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/tegra20-cpufreq.c | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/drivers/cpufreq/tegra20-cpufreq.c b/drivers/cpufreq/tegra20-cpufreq.c
index e8db3d75be25..edd738e641f8 100644
--- a/drivers/cpufreq/tegra20-cpufreq.c
+++ b/drivers/cpufreq/tegra20-cpufreq.c
@@ -32,9 +32,9 @@ static bool cpu0_node_has_opp_v2_prop(void)
 	return ret;
 }
 
-static void tegra20_cpufreq_put_supported_hw(void *opp_table)
+static void tegra20_cpufreq_put_supported_hw(void *opp_token)
 {
-	dev_pm_opp_put_supported_hw(opp_table);
+	dev_pm_opp_clear_config((unsigned long) opp_token);
 }
 
 static void tegra20_cpufreq_dt_unregister(void *cpufreq_dt)
@@ -45,10 +45,13 @@ static void tegra20_cpufreq_dt_unregister(void *cpufreq_dt)
 static int tegra20_cpufreq_probe(struct platform_device *pdev)
 {
 	struct platform_device *cpufreq_dt;
-	struct opp_table *opp_table;
 	struct device *cpu_dev;
 	u32 versions[2];
 	int err;
+	struct dev_pm_opp_config config = {
+		.supported_hw = versions,
+		.supported_hw_count = ARRAY_SIZE(versions),
+	};
 
 	if (!cpu0_node_has_opp_v2_prop()) {
 		dev_err(&pdev->dev, "operating points not found\n");
@@ -71,16 +74,15 @@ static int tegra20_cpufreq_probe(struct platform_device *pdev)
 	if (WARN_ON(!cpu_dev))
 		return -ENODEV;
 
-	opp_table = dev_pm_opp_set_supported_hw(cpu_dev, versions, 2);
-	err = PTR_ERR_OR_ZERO(opp_table);
-	if (err) {
-		dev_err(&pdev->dev, "failed to set supported hw: %d\n", err);
+	err = dev_pm_opp_set_config(cpu_dev, &config);
+	if (err < 0) {
+		dev_err(&pdev->dev, "failed to set OPP config: %d\n", err);
 		return err;
 	}
 
 	err = devm_add_action_or_reset(&pdev->dev,
 				       tegra20_cpufreq_put_supported_hw,
-				       opp_table);
+				       (void *)((unsigned long) err));
 	if (err)
 		return err;
 
-- 
2.31.1.272.g89b43f80a514