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authorBartosz Golaszewski <bgolaszewski@baylibre.com>2019-02-20 14:12:39 +0300
committerLinus Walleij <linus.walleij@linaro.org>2019-02-21 15:04:34 +0300
commit7945f929f1a77a1c8887a97ca07f87626858ff42 (patch)
tree3195cd9fd4e35c35d6bd09056d2473e9e53e4fc7 /drivers/base
parent3dda927fdbaac926c50b550ccb51ed18c184468b (diff)
downloadlinux-7945f929f1a77a1c8887a97ca07f87626858ff42.tar.xz
drivers: provide devm_platform_ioremap_resource()
There are currently 1200+ instances of using platform_get_resource() and devm_ioremap_resource() together in the kernel tree. This patch wraps these two calls in a single helper. Thanks to that we don't have to declare a local variable for struct resource * and can omit the redundant argument for resource type. We also have one function call less. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/base')
-rw-r--r--drivers/base/platform.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index 1c958eb33ef4..f82691e1c26c 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -80,6 +80,24 @@ struct resource *platform_get_resource(struct platform_device *dev,
EXPORT_SYMBOL_GPL(platform_get_resource);
/**
+ * devm_platform_ioremap_resource - call devm_ioremap_resource() for a platform
+ * device
+ *
+ * @pdev: platform device to use both for memory resource lookup as well as
+ * resource managemend
+ * @index: resource index
+ */
+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);
+}
+EXPORT_SYMBOL_GPL(devm_platform_ioremap_resource);
+
+/**
* platform_get_irq - get an IRQ for a device
* @dev: platform device
* @num: IRQ number index