linux-kernel - [PATCH V2 07/30] cpufreq: sun50i: Migrate to dev_pm_opp_set

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Date:   Fri,  1 Jul 2022 13:50:02 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     Yangtao Li <tiny.windzz@...il.com>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        Chen-Yu Tsai <wens@...e.org>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        Samuel Holland <samuel@...lland.org>
Cc:     linux-pm@...r.kernel.org,
        Vincent Guittot <vincent.guittot@...aro.org>,
        Stephen Boyd <sboyd@...nel.org>, Nishanth Menon <nm@...com>,
        linux-arm-kernel@...ts.infradead.org, linux-sunxi@...ts.linux.dev,
        linux-kernel@...r.kernel.org
Subject: [PATCH V2 07/30] cpufreq: sun50i: 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.

Signed-off-by: Viresh Kumar <viresh.kumar@...aro.org>
---
 drivers/cpufreq/sun50i-cpufreq-nvmem.c | 36 +++++++++++++-------------
 1 file changed, 18 insertions(+), 18 deletions(-)

diff --git a/drivers/cpufreq/sun50i-cpufreq-nvmem.c b/drivers/cpufreq/sun50i-cpufreq-nvmem.c
index 75e1bf3a08f7..afb1a11f781c 100644
--- a/drivers/cpufreq/sun50i-cpufreq-nvmem.c
+++ b/drivers/cpufreq/sun50i-cpufreq-nvmem.c
@@ -86,26 +86,29 @@ static int sun50i_cpufreq_get_efuse(u32 *versions)
 
 static int sun50i_cpufreq_nvmem_probe(struct platform_device *pdev)
 {
-	struct opp_table **opp_tables;
+	int *opp_tokens;
 	char name[MAX_NAME_LEN];
 	unsigned int cpu;
 	u32 speed = 0;
 	int ret;
 
-	opp_tables = kcalloc(num_possible_cpus(), sizeof(*opp_tables),
+	opp_tokens = kcalloc(num_possible_cpus(), sizeof(*opp_tokens),
 			     GFP_KERNEL);
-	if (!opp_tables)
+	if (!opp_tokens)
 		return -ENOMEM;
 
 	ret = sun50i_cpufreq_get_efuse(&speed);
 	if (ret) {
-		kfree(opp_tables);
+		kfree(opp_tokens);
 		return ret;
 	}
 
 	snprintf(name, MAX_NAME_LEN, "speed%d", speed);
 
 	for_each_possible_cpu(cpu) {
+		struct dev_pm_opp_config config = {
+			.prop_name = name,
+		};
 		struct device *cpu_dev = get_cpu_device(cpu);
 
 		if (!cpu_dev) {
@@ -113,10 +116,10 @@ static int sun50i_cpufreq_nvmem_probe(struct platform_device *pdev)
 			goto free_opp;
 		}
 
-		opp_tables[cpu] = dev_pm_opp_set_prop_name(cpu_dev, name);
-		if (IS_ERR(opp_tables[cpu])) {
-			ret = PTR_ERR(opp_tables[cpu]);
-			pr_err("Failed to set prop name\n");
+		opp_tokens[cpu] = dev_pm_opp_set_config(cpu_dev, &config);
+		if (opp_tokens[cpu] < 0) {
+			ret = opp_tokens[cpu];
+			pr_err("Failed to set OPP config\n");
 			goto free_opp;
 		}
 	}
@@ -124,7 +127,7 @@ static int sun50i_cpufreq_nvmem_probe(struct platform_device *pdev)
 	cpufreq_dt_pdev = platform_device_register_simple("cpufreq-dt", -1,
 							  NULL, 0);
 	if (!IS_ERR(cpufreq_dt_pdev)) {
-		platform_set_drvdata(pdev, opp_tables);
+		platform_set_drvdata(pdev, opp_tokens);
 		return 0;
 	}
 
@@ -132,27 +135,24 @@ static int sun50i_cpufreq_nvmem_probe(struct platform_device *pdev)
 	pr_err("Failed to register platform device\n");
 
 free_opp:
-	for_each_possible_cpu(cpu) {
-		if (IS_ERR_OR_NULL(opp_tables[cpu]))
-			break;
-		dev_pm_opp_put_prop_name(opp_tables[cpu]);
-	}
-	kfree(opp_tables);
+	for_each_possible_cpu(cpu)
+		dev_pm_opp_clear_config(opp_tokens[cpu]);
+	kfree(opp_tokens);
 
 	return ret;
 }
 
 static int sun50i_cpufreq_nvmem_remove(struct platform_device *pdev)
 {
-	struct opp_table **opp_tables = platform_get_drvdata(pdev);
+	int *opp_tokens = platform_get_drvdata(pdev);
 	unsigned int cpu;
 
 	platform_device_unregister(cpufreq_dt_pdev);
 
 	for_each_possible_cpu(cpu)
-		dev_pm_opp_put_prop_name(opp_tables[cpu]);
+		dev_pm_opp_clear_config(opp_tokens[cpu]);
 
-	kfree(opp_tables);
+	kfree(opp_tokens);
 
 	return 0;
 }
-- 
2.31.1.272.g89b43f80a514