diff options
Diffstat (limited to 'drivers/base')
| -rw-r--r-- | drivers/base/platform.c | 27 |
1 files changed, 23 insertions, 4 deletions
diff --git a/drivers/base/platform.c b/drivers/base/platform.c index b5ce7b085795..5255550b7c34 100644 --- a/drivers/base/platform.c +++ b/drivers/base/platform.c @@ -63,6 +63,28 @@ EXPORT_SYMBOL_GPL(platform_get_resource); #ifdef CONFIG_HAS_IOMEM /** + * devm_platform_get_and_ioremap_resource - call devm_ioremap_resource() for a + * platform device and get resource + * + * @pdev: platform device to use both for memory resource lookup as well as + * resource management + * @index: resource index + * @res: optional output parameter to store a pointer to the obtained resource. + */ +void __iomem * +devm_platform_get_and_ioremap_resource(struct platform_device *pdev, + unsigned int index, struct resource **res) +{ + struct resource *r; + + r = platform_get_resource(pdev, IORESOURCE_MEM, index); + if (res) + *res = r; + return devm_ioremap_resource(&pdev->dev, r); +} +EXPORT_SYMBOL_GPL(devm_platform_get_and_ioremap_resource); + +/** * devm_platform_ioremap_resource - call devm_ioremap_resource() for a platform * device * @@ -73,10 +95,7 @@ EXPORT_SYMBOL_GPL(platform_get_resource); void __iomem *devm_platform_ioremap_resource(struct platform_device *pdev, unsigned int index) { - struct resource *res; - - res = platform_get_resource(pdev, IORESOURCE_MEM, index); - return devm_ioremap_resource(&pdev->dev, res); + return devm_platform_get_and_ioremap_resource(pdev, index, NULL); } EXPORT_SYMBOL_GPL(devm_platform_ioremap_resource); |