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authorChristian Krafft <krafft@de.ibm.com>2007-04-23 15:35:45 -0400
committerArnd Bergmann <arnd@klappe.arndb.de>2007-04-23 15:44:40 -0400
commit6bf05fd776e38a0a9c17e17c2345b59b1b9aa2cb (patch)
tree2f7c2ecec6918614f6f407bec94299d79baf5b47 /arch/powerpc
parent4a065f9418274f2d73066f1638b3612341e4f030 (diff)
[POWERPC] add of_iomap function
The of_iomap function maps memory for a given device_node and returns a pointer to that memory. This is used at some places, so it makes sense to a seperate function. Signed-off-by: Christian Krafft <krafft@de.ibm.com> Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/sysdev/pmi.c19
1 files changed, 2 insertions, 17 deletions
diff --git a/arch/powerpc/sysdev/pmi.c b/arch/powerpc/sysdev/pmi.c
index 05db1f9f82d3..85a7c99c1003 100644
--- a/arch/powerpc/sysdev/pmi.c
+++ b/arch/powerpc/sysdev/pmi.c
@@ -33,7 +33,7 @@
33#include <asm/of_platform.h> 33#include <asm/of_platform.h>
34#include <asm/io.h> 34#include <asm/io.h>
35#include <asm/pmi.h> 35#include <asm/pmi.h>
36 36#include <asm/prom.h>
37 37
38struct pmi_data { 38struct pmi_data {
39 struct list_head handler; 39 struct list_head handler;
@@ -49,21 +49,6 @@ struct pmi_data {
49}; 49};
50 50
51 51
52
53static void __iomem *of_iomap(struct device_node *np)
54{
55 struct resource res;
56
57 if (of_address_to_resource(np, 0, &res))
58 return NULL;
59
60 pr_debug("Resource start: 0x%lx\n", res.start);
61 pr_debug("Resource end: 0x%lx\n", res.end);
62
63 return ioremap(res.start, 1 + res.end - res.start);
64}
65
66
67static int pmi_irq_handler(int irq, void *dev_id) 52static int pmi_irq_handler(int irq, void *dev_id)
68{ 53{
69 struct pmi_data *data; 54 struct pmi_data *data;
@@ -154,7 +139,7 @@ static int pmi_of_probe(struct of_device *dev,
154 goto out; 139 goto out;
155 } 140 }
156 141
157 data->pmi_reg = of_iomap(np); 142 data->pmi_reg = of_iomap(np, 0);
158 if (!data->pmi_reg) { 143 if (!data->pmi_reg) {
159 printk(KERN_ERR "pmi: invalid register address.\n"); 144 printk(KERN_ERR "pmi: invalid register address.\n");
160 rc = -EFAULT; 145 rc = -EFAULT;