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47f29df7db
Driver calling of_reserved_mem_device_init() might be interested if the initialization has been successful or not, so add support for returning error code. This fixes a build warining caused by commit7bfa5ab6fa("drivers: dma-coherent: add initialization from device tree"), which has been merged without this change and without fixing function return value. Fixes:7bfa5ab6fa("drivers: dma-coherent: add initialization from device tree") Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Cc: Michal Nazarewicz <mina86@mina86.com> Cc: Grant Likely <grant.likely@linaro.org> Cc: Laura Abbott <lauraa@codeaurora.org> Cc: Josh Cartwright <joshc@codeaurora.org> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
50 lines
1.3 KiB
C
50 lines
1.3 KiB
C
#ifndef __OF_RESERVED_MEM_H
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#define __OF_RESERVED_MEM_H
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struct device;
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struct of_phandle_args;
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struct reserved_mem_ops;
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struct reserved_mem {
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const char *name;
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unsigned long fdt_node;
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unsigned long phandle;
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const struct reserved_mem_ops *ops;
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phys_addr_t base;
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phys_addr_t size;
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void *priv;
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};
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struct reserved_mem_ops {
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int (*device_init)(struct reserved_mem *rmem,
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struct device *dev);
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void (*device_release)(struct reserved_mem *rmem,
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struct device *dev);
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};
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typedef int (*reservedmem_of_init_fn)(struct reserved_mem *rmem);
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#define RESERVEDMEM_OF_DECLARE(name, compat, init) \
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_OF_DECLARE(reservedmem, name, compat, init, reservedmem_of_init_fn)
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#ifdef CONFIG_OF_RESERVED_MEM
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int of_reserved_mem_device_init(struct device *dev);
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void of_reserved_mem_device_release(struct device *dev);
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void fdt_init_reserved_mem(void);
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void fdt_reserved_mem_save_node(unsigned long node, const char *uname,
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phys_addr_t base, phys_addr_t size);
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#else
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static inline int of_reserved_mem_device_init(struct device *dev)
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{
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return -ENOSYS;
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}
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static inline void of_reserved_mem_device_release(struct device *pdev) { }
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static inline void fdt_init_reserved_mem(void) { }
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static inline void fdt_reserved_mem_save_node(unsigned long node,
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const char *uname, phys_addr_t base, phys_addr_t size) { }
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#endif
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#endif /* __OF_RESERVED_MEM_H */
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