linux-kernel - [PATCH 26/31] PM / devfreq: tegra30: convert to use devm_pm_opp

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Message-Id: <20210103035445.23696-1-tiny.windzz@gmail.com>
Date:   Sun,  3 Jan 2021 03:54:45 +0000
From:   Yangtao Li <tiny.windzz@...il.com>
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Subject: [PATCH 26/31] PM / devfreq: tegra30: convert to use devm_pm_opp_* API

Use devm_pm_opp_* API to simplify code, and remove opp_table
from tegra_devfreq.

Signed-off-by: Yangtao Li <tiny.windzz@...il.com>
---
 drivers/devfreq/tegra30-devfreq.c | 21 +++++++--------------
 1 file changed, 7 insertions(+), 14 deletions(-)

diff --git a/drivers/devfreq/tegra30-devfreq.c b/drivers/devfreq/tegra30-devfreq.c
index 117cad7968ab..4984cb91e9ea 100644
--- a/drivers/devfreq/tegra30-devfreq.c
+++ b/drivers/devfreq/tegra30-devfreq.c
@@ -178,7 +178,6 @@ struct tegra_devfreq_soc_data {
 
 struct tegra_devfreq {
 	struct devfreq		*devfreq;
-	struct opp_table	*opp_table;
 
 	struct reset_control	*reset;
 	struct clk		*clock;
@@ -794,6 +793,7 @@ static int tegra_devfreq_probe(struct platform_device *pdev)
 	struct tegra_devfreq_device *dev;
 	struct tegra_devfreq *tegra;
 	struct devfreq *devfreq;
+	struct opp_tabl	*opp_table;
 	unsigned int i;
 	long rate;
 	int err;
@@ -841,25 +841,25 @@ static int tegra_devfreq_probe(struct platform_device *pdev)
 		return err;
 	}
 
-	tegra->opp_table = dev_pm_opp_set_supported_hw(&pdev->dev,
-						       &hw_version, 1);
-	err = PTR_ERR_OR_ZERO(tegra->opp_table);
+	opp_table = devm_pm_opp_set_supported_hw(&pdev->dev,
+						 &hw_version, 1);
+	err = PTR_ERR_OR_ZERO(opp_table);
 	if (err) {
 		dev_err(&pdev->dev, "Failed to set supported HW: %d\n", err);
 		return err;
 	}
 
-	err = dev_pm_opp_of_add_table(&pdev->dev);
+	err = devm_pm_opp_of_add_table(&pdev->dev);
 	if (err) {
 		dev_err(&pdev->dev, "Failed to add OPP table: %d\n", err);
-		goto put_hw;
+		return err;
 	}
 
 	err = clk_prepare_enable(tegra->clock);
 	if (err) {
 		dev_err(&pdev->dev,
 			"Failed to prepare and enable ACTMON clock\n");
-		goto remove_table;
+		return err;
 	}
 
 	err = reset_control_reset(tegra->reset);
@@ -917,10 +917,6 @@ static int tegra_devfreq_probe(struct platform_device *pdev)
 	reset_control_reset(tegra->reset);
 disable_clk:
 	clk_disable_unprepare(tegra->clock);
-remove_table:
-	dev_pm_opp_of_remove_table(&pdev->dev);
-put_hw:
-	dev_pm_opp_put_supported_hw(tegra->opp_table);
 
 	return err;
 }
@@ -935,9 +931,6 @@ static int tegra_devfreq_remove(struct platform_device *pdev)
 	reset_control_reset(tegra->reset);
 	clk_disable_unprepare(tegra->clock);
 
-	dev_pm_opp_of_remove_table(&pdev->dev);
-	dev_pm_opp_put_supported_hw(tegra->opp_table);
-
 	return 0;
 }
 
-- 
2.25.1