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thermal: tsens: switch from of_iomap() to devm_ioremap_resource()

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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@linaro.org>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
This commit is contained in:
Amit Kucheria 2018-07-26 16:03:09 +05:30 committed by Eduardo Valentin
parent e0fe01426c
commit faa590baf8
1 changed files with 7 additions and 6 deletions
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13
drivers/thermal/qcom/tsens-common.c
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@ -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;
}