[PATCH v6 07/12] thermal: qoriq: Convert driver to use devm_ioremap()

[Andrey Smirnov]

Convert driver to use devm_ioremap() to simplify memory deallocation
and error handling code. No functional change intended.

Signed-off-by: Andrey Smirnov <andrew.smirnov@xxxxxxxxx>
Reviewed-by: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>
Tested-by: Lucas Stach <l.stach@xxxxxxxxxxxxxx>
Cc: Chris Healy <cphealy@xxxxxxxxx>
Cc: Lucas Stach <l.stach@xxxxxxxxxxxxxx>
Cc: Eduardo Valentin <edubezval@xxxxxxxxx>
Cc: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>
Cc: Angus Ainslie (Purism) <angus@xxxxxxxx>
Cc: linux-imx@xxxxxxx
Cc: linux-pm@xxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
---
 drivers/thermal/qoriq_thermal.c | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/drivers/thermal/qoriq_thermal.c b/drivers/thermal/qoriq_thermal.c
index 62d7a0efb837..80fe9adcc313 100644
--- a/drivers/thermal/qoriq_thermal.c
+++ b/drivers/thermal/qoriq_thermal.c
@@ -193,6 +193,7 @@ static int qoriq_tmu_probe(struct platform_device *pdev)
 	struct qoriq_tmu_data *data;
 	struct device_node *np = pdev->dev.of_node;
 	struct device *dev = &pdev->dev;
+	struct resource *io;
 
 	data = devm_kzalloc(dev, sizeof(struct qoriq_tmu_data),
 			    GFP_KERNEL);
@@ -201,7 +202,13 @@ 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);
+	io = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!io) {
+		dev_err(dev, "Failed to get memory region\n");
+		return -ENODEV;
+	}
+
+	data->regs = devm_ioremap(dev, io->start, resource_size(io));
 	if (!data->regs) {
 		dev_err(dev, "Failed to get memory region\n");
 		return -ENODEV;
@@ -211,23 +218,17 @@ static int qoriq_tmu_probe(struct platform_device *pdev)
 
 	ret = qoriq_tmu_calibration(dev, data);	/* TMU calibration */
 	if (ret < 0)
-		goto err_tmu;
+		return ret;
 
 	ret = qoriq_tmu_register_tmu_zone(dev, data);
 	if (ret < 0) {
 		dev_err(dev, "Failed to register sensors\n");
-		ret = -ENODEV;
-		goto err_tmu;
+		return -ENODEV;
 	}
 
 	platform_set_drvdata(pdev, data);
 
 	return 0;
-
-err_tmu:
-	iounmap(data->regs);
-
-	return ret;
 }
 
 static int qoriq_tmu_remove(struct platform_device *pdev)
@@ -237,7 +238,6 @@ static int qoriq_tmu_remove(struct platform_device *pdev)
 	/* Disable monitoring */
 	tmu_write(data, TMR_DISABLE, &data->regs->tmr);
 
-	iounmap(data->regs);
 	platform_set_drvdata(pdev, NULL);
 
 	return 0;
-- 
2.21.0