linux-kernel - [PATCH v2 14/15] PM / devfreq: rk3399_dmc: Use devm_pm_opp_of_add

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Date:   Thu, 27 Jan 2022 15:07:25 -0800
From:   Brian Norris <briannorris@...omium.org>
To:     MyungJoo Ham <myungjoo.ham@...sung.com>,
        Kyungmin Park <kyungmin.park@...sung.com>,
        Chanwoo Choi <cw00.choi@...sung.com>,
        Rob Herring <robh+dt@...nel.org>
Cc:     linux-kernel@...r.kernel.org, linux-rockchip@...ts.infradead.org,
        Lin Huang <hl@...k-chips.com>,
        linux-arm-kernel@...ts.infradead.org,
        Derek Basehore <dbasehore@...omium.org>,
        devicetree@...r.kernel.org, linux-pm@...r.kernel.org,
        Heiko Stuebner <heiko@...ech.de>,
        Brian Norris <briannorris@...omium.org>
Subject: [PATCH v2 14/15] PM / devfreq: rk3399_dmc: Use devm_pm_opp_of_add_table()

This simplifies error-cleanup and remove().

Signed-off-by: Brian Norris <briannorris@...omium.org>
---

Changes in v2:
 - New patch

 drivers/devfreq/rk3399_dmc.c | 14 +++-----------
 1 file changed, 3 insertions(+), 11 deletions(-)

diff --git a/drivers/devfreq/rk3399_dmc.c b/drivers/devfreq/rk3399_dmc.c
index fca9fcbd4249..9615658d04ae 100644
--- a/drivers/devfreq/rk3399_dmc.c
+++ b/drivers/devfreq/rk3399_dmc.c
@@ -401,7 +401,7 @@ static int rk3399_dmcfreq_probe(struct platform_device *pdev)
 	 * We add a devfreq driver to our parent since it has a device tree node
 	 * with operating points.
 	 */
-	if (dev_pm_opp_of_add_table(dev)) {
+	if (devm_pm_opp_of_add_table(dev)) {
 		dev_err(dev, "Invalid operating-points in device tree.\n");
 		ret = -EINVAL;
 		goto err_edev;
@@ -415,7 +415,7 @@ static int rk3399_dmcfreq_probe(struct platform_device *pdev)
 	opp = devfreq_recommended_opp(dev, &data->rate, 0);
 	if (IS_ERR(opp)) {
 		ret = PTR_ERR(opp);
-		goto err_free_opp;
+		goto err_edev;
 	}
 
 	data->rate = dev_pm_opp_get_freq(opp);
@@ -430,7 +430,7 @@ static int rk3399_dmcfreq_probe(struct platform_device *pdev)
 					   &data->ondemand_data);
 	if (IS_ERR(data->devfreq)) {
 		ret = PTR_ERR(data->devfreq);
-		goto err_free_opp;
+		goto err_edev;
 	}
 
 	devm_devfreq_register_opp_notifier(dev, data->devfreq);
@@ -440,8 +440,6 @@ static int rk3399_dmcfreq_probe(struct platform_device *pdev)
 
 	return 0;
 
-err_free_opp:
-	dev_pm_opp_of_remove_table(&pdev->dev);
 err_edev:
 	devfreq_event_disable_edev(data->edev);
 
@@ -454,12 +452,6 @@ static int rk3399_dmcfreq_remove(struct platform_device *pdev)
 
 	devfreq_event_disable_edev(dmcfreq->edev);
 
-	/*
-	 * Before remove the opp table we need to unregister the opp notifier.
-	 */
-	devm_devfreq_unregister_opp_notifier(dmcfreq->dev, dmcfreq->devfreq);
-	dev_pm_opp_of_remove_table(dmcfreq->dev);
-
 	return 0;
 }
 
-- 
2.35.0.rc0.227.g00780c9af4-goog