linux-kernel - [PATCH V3 3/5] thermal: qoriq: Use devm_platform_ioremap_resource() instead of of

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Date:   Tue, 30 Jul 2019 10:21:24 +0800
From:   Anson.Huang@....com
To:     rui.zhang@...el.com, edubezval@...il.com,
        daniel.lezcano@...aro.org, robh+dt@...nel.org,
        mark.rutland@....com, linux-pm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Linux-imx@....com
Subject: [PATCH V3 3/5] thermal: qoriq: Use devm_platform_ioremap_resource() instead of of_iomap()

From: Anson Huang <Anson.Huang@....com>

Use devm_platform_ioremap_resource() instead of of_iomap() to
save the iounmap() call in error handle path;

Signed-off-by: Anson Huang <Anson.Huang@....com>
---
No change, just adjust the patch sequence and handle the conflicts.
---
 drivers/thermal/qoriq_thermal.c | 18 ++++++------------
 1 file changed, 6 insertions(+), 12 deletions(-)

diff --git a/drivers/thermal/qoriq_thermal.c b/drivers/thermal/qoriq_thermal.c
index 5755a11..8d19601 100644
--- a/drivers/thermal/qoriq_thermal.c
+++ b/drivers/thermal/qoriq_thermal.c
@@ -204,11 +204,10 @@ static int qoriq_tmu_probe(struct platform_device *pdev)
 
 	data->little_endian = of_property_read_bool(np, "little-endian");
 
-	data->regs = of_iomap(np, 0);
-	if (!data->regs) {
+	data->regs = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(data->regs)) {
 		dev_err(&pdev->dev, "Failed to get memory region\n");
-		ret = -ENODEV;
-		goto err_iomap;
+		return PTR_ERR(data->regs);
 	}
 
 	data->clk = devm_clk_get_optional(&pdev->dev, NULL);
@@ -225,22 +224,19 @@ static int qoriq_tmu_probe(struct platform_device *pdev)
 
 	ret = qoriq_tmu_calibration(pdev);	/* TMU calibration */
 	if (ret < 0)
-		goto err_tmu;
+		goto err;
 
 	ret = qoriq_tmu_register_tmu_zone(pdev);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "Failed to register sensors\n");
 		ret = -ENODEV;
-		goto err_tmu;
+		goto err;
 	}
 
 	return 0;
 
-err_tmu:
+err:
 	clk_disable_unprepare(data->clk);
-	iounmap(data->regs);
-
-err_iomap:
 	platform_set_drvdata(pdev, NULL);
 
 	return ret;
@@ -253,8 +249,6 @@ static int qoriq_tmu_remove(struct platform_device *pdev)
 	/* Disable monitoring */
 	tmu_write(data, TMR_DISABLE, &data->regs->tmr);
 
-	iounmap(data->regs);
-
 	clk_disable_unprepare(data->clk);
 
 	platform_set_drvdata(pdev, NULL);
-- 
2.7.4