lib: devres: provide devm_ioremap_resource_wc() (b873af62) · Commits · 戴 / test

Documentation/driver-api/driver-model/devres.rst

+1 −0

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		@@ -316,6 +316,7 @@ IOMAP
		devm_ioremap_nocache()
		devm_ioremap_wc()
		devm_ioremap_resource() : checks resource, requests memory region, ioremaps
		devm_ioremap_resource_wc()
		devm_platform_ioremap_resource() : calls devm_ioremap_resource() for platform device
		devm_iounmap()
		pcim_iomap()

+2 −0

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		@@ -962,6 +962,8 @@ extern void devm_free_pages(struct device *dev, unsigned long addr);

		void __iomem devm_ioremap_resource(struct device dev,
		const struct resource *res);
		void __iomem devm_ioremap_resource_wc(struct device dev,
		const struct resource *res);

		void __iomem devm_of_iomap(struct device dev,
		struct device_node *node, int index,

+15 −0

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		@@ -169,6 +169,21 @@ void __iomem devm_ioremap_resource(struct device dev,
		}
		EXPORT_SYMBOL(devm_ioremap_resource);

		/**
		* devm_ioremap_resource_wc() - write-combined variant of
		* devm_ioremap_resource()
		* @dev: generic device to handle the resource for
		* @res: resource to be handled
		*
		* Returns a pointer to the remapped memory or an ERR_PTR() encoded error code
		* on failure. Usage example:
		*/
		void __iomem devm_ioremap_resource_wc(struct device dev,
		const struct resource *res)
		{
		return __devm_ioremap_resource(dev, res, DEVM_IOREMAP_WC);
		}

		/*
		* devm_of_iomap - Requests a resource and maps the memory mapped IO
		* for a given device_node managed by a given device