devm_ioremap_resources() automatically requests resources (so that the I/O
region shows up in /proc/iomem) and devm_ wrappers do better error handling
and unmapping of the I/O region when needed.
Signed-off-by: Amit Kucheria <amit.kucheria@xxxxxxxxxx>
Reviewed-by: Matthias Kaehlcke <mka@xxxxxxxxxxxx>
---
drivers/thermal/qcom/tsens-common.c | 13 +++++++------
1 file changed, 7 insertions(+), 6 deletions(-)
diff --git a/drivers/thermal/qcom/tsens-common.c b/drivers/thermal/qcom/tsens-common.c
index 25e7f247b027..6207d8d92351 100644
--- a/drivers/thermal/qcom/tsens-common.c
+++ b/drivers/thermal/qcom/tsens-common.c
@@ -127,13 +127,11 @@ static const struct regmap_config tsens_config = {
int __init init_common(struct tsens_device *tmdev)
{
void __iomem *base;
+ struct resource *res;
struct platform_device *op = of_find_device_by_node(tmdev->dev->of_node);
if (!op)
return -EINVAL;
- base = of_iomap(tmdev->dev->of_node, 0);
- if (!base)
- return -EINVAL;
/* The driver only uses the TM register address space for now */
if (op->num_resources > 1) {
@@ -143,11 +141,14 @@ int __init init_common(struct tsens_device *tmdev)
tmdev->tm_offset = 0x1000;
}
+ res = platform_get_resource(op, IORESOURCE_MEM, 0);
+ base = devm_ioremap_resource(&op->dev, res);
+ if (IS_ERR(base))
+ return PTR_ERR(base);
+
tmdev->map = devm_regmap_init_mmio(tmdev->dev, base, &tsens_config);
- if (IS_ERR(tmdev->map)) {
- iounmap(base);
+ if (IS_ERR(tmdev->map))
return PTR_ERR(tmdev->map);
- }
return 0;
}
--
2.17.GIT
--
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