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powerpc: Const-qualify Device Node Argument to DCR Resource Extent API

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Add const qualifier to device_node argument for
dcr_resource_{start,len} as of_get_property also const-qualifies this
argument.

Signed-off-by: Grant Erickson <gerickson@nuovations.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Grant Erickson 2008-12-19 08:17:54 +00:00 committed by Paul Mackerras
parent 9dce3ce5c5
commit e14d77490d
2 changed files with 5 additions and 4 deletions
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4
arch/powerpc/include/asm/dcr.h
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@ -68,9 +68,9 @@ typedef dcr_host_mmio_t dcr_host_t;
* additional helpers to read the DCR * base from the device-tree
*/
struct device_node;
extern unsigned int dcr_resource_start(struct device_node *np,
extern unsigned int dcr_resource_start(const struct device_node *np,
unsigned int index);
extern unsigned int dcr_resource_len(struct device_node *np,
extern unsigned int dcr_resource_len(const struct device_node *np,
unsigned int index);
#endif /* CONFIG_PPC_DCR */
#endif /* __ASSEMBLY__ */

5
arch/powerpc/sysdev/dcr.c
View File

@ -124,7 +124,8 @@ EXPORT_SYMBOL_GPL(dcr_write_generic);
#endif /* defined(CONFIG_PPC_DCR_NATIVE) && defined(CONFIG_PPC_DCR_MMIO) */
unsigned int dcr_resource_start(struct device_node *np, unsigned int index)
unsigned int dcr_resource_start(const struct device_node *np,
unsigned int index)
{
unsigned int ds;
const u32 *dr = of_get_property(np, "dcr-reg", &ds);
@ -136,7 +137,7 @@ unsigned int dcr_resource_start(struct device_node *np, unsigned int index)
}
EXPORT_SYMBOL_GPL(dcr_resource_start);
unsigned int dcr_resource_len(struct device_node *np, unsigned int index)
unsigned int dcr_resource_len(const struct device_node *np, unsigned int index)
{
unsigned int ds;
const u32 *dr = of_get_property(np, "dcr-reg", &ds);