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authorBartosz Golaszewski <bgolaszewski@baylibre.com>2019-10-22 11:43:14 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-11-05 20:32:46 +0300
commitbb6243b4f73d29f8c8faf8f805a2042ac3973b71 (patch)
treefed1ca08089b0662c8735d8aad99a6be95c00a89 /drivers/base/platform.c
parentb873af620e58863b70ae9cf97f6fab4cf4c544af (diff)
downloadlinux-bb6243b4f73d29f8c8faf8f805a2042ac3973b71.tar.xz
drivers: platform: provide devm_platform_ioremap_resource_wc()
Provide a write-combined variant of devm_platform_ioremap_resource(). Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20191022084318.22256-5-brgl@bgdev.pl Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/base/platform.c')
-rw-r--r--drivers/base/platform.c19
1 files changed, 18 insertions, 1 deletions
diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index e0ca682a756d..28eb71967f17 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -60,6 +60,7 @@ struct resource *platform_get_resource(struct platform_device *dev,
}
EXPORT_SYMBOL_GPL(platform_get_resource);
+#ifdef CONFIG_HAS_IOMEM
/**
* devm_platform_ioremap_resource - call devm_ioremap_resource() for a platform
* device
@@ -68,7 +69,6 @@ EXPORT_SYMBOL_GPL(platform_get_resource);
* resource management
* @index: resource index
*/
-#ifdef CONFIG_HAS_IOMEM
void __iomem *devm_platform_ioremap_resource(struct platform_device *pdev,
unsigned int index)
{
@@ -78,6 +78,23 @@ void __iomem *devm_platform_ioremap_resource(struct platform_device *pdev,
return devm_ioremap_resource(&pdev->dev, res);
}
EXPORT_SYMBOL_GPL(devm_platform_ioremap_resource);
+
+/**
+ * devm_platform_ioremap_resource_wc - write-combined variant of
+ * devm_platform_ioremap_resource()
+ *
+ * @pdev: platform device to use both for memory resource lookup as well as
+ * resource management
+ * @index: resource index
+ */
+void __iomem *devm_platform_ioremap_resource_wc(struct platform_device *pdev,
+ unsigned int index)
+{
+ struct resource *res;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, index);
+ return devm_ioremap_resource_wc(&pdev->dev, res);
+}
#endif /* CONFIG_HAS_IOMEM */
/**