Commit c9c8641d authored by Bartosz Golaszewski's avatar Bartosz Golaszewski Committed by Greg Kroah-Hartman

drivers: provide devm_platform_ioremap_resource_byname()

Provide a variant of devm_platform_ioremap_resource() that allows to
lookup resources from platform devices by name rather than by index.
Signed-off-by: default avatarBartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: default avatarArnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20191022084318.22256-7-brgl@bgdev.plSigned-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 444b0111
......@@ -319,6 +319,7 @@ IOMAP
devm_ioremap_resource_wc()
devm_platform_ioremap_resource() : calls devm_ioremap_resource() for platform device
devm_platform_ioremap_resource_wc()
devm_platform_ioremap_resource_byname()
devm_iounmap()
pcim_iomap()
pcim_iomap_regions() : do request_region() and iomap() on multiple BARs
......
......@@ -95,6 +95,26 @@ void __iomem *devm_platform_ioremap_resource_wc(struct platform_device *pdev,
res = platform_get_resource(pdev, IORESOURCE_MEM, index);
return devm_ioremap_resource_wc(&pdev->dev, res);
}
/**
* devm_platform_ioremap_resource_byname - call devm_ioremap_resource for
* a platform device, retrieve the
* resource by name
*
* @pdev: platform device to use both for memory resource lookup as well as
* resource management
* @name: name of the resource
*/
void __iomem *
devm_platform_ioremap_resource_byname(struct platform_device *pdev,
const char *name)
{
struct resource *res;
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, name);
return devm_ioremap_resource(&pdev->dev, res);
}
EXPORT_SYMBOL_GPL(devm_platform_ioremap_resource_byname);
#endif /* CONFIG_HAS_IOMEM */
/**
......
......@@ -60,6 +60,9 @@ devm_platform_ioremap_resource(struct platform_device *pdev,
extern void __iomem *
devm_platform_ioremap_resource_wc(struct platform_device *pdev,
unsigned int index);
extern void __iomem *
devm_platform_ioremap_resource_byname(struct platform_device *pdev,
const char *name);
extern int platform_get_irq(struct platform_device *, unsigned int);
extern int platform_get_irq_optional(struct platform_device *, unsigned int);
extern int platform_irq_count(struct platform_device *);
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment