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sparc32: Convert pmc to OF driver.

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Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2008-08-27 02:48:26 -07:00
parent 7e7e2f0356
commit f1b6aa87b7
1 changed files with 28 additions and 29 deletions
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57
arch/sparc/kernel/pmc.c
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@ -10,9 +10,10 @@
#include <linux/init.h> #include <linux/init.h>
#include <linux/miscdevice.h> #include <linux/miscdevice.h>
#include <linux/pm.h> #include <linux/pm.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <asm/io.h> #include <asm/io.h>
#include <asm/sbus.h>
#include <asm/oplib.h> #include <asm/oplib.h>
#include <asm/uaccess.h> #include <asm/uaccess.h>
#include <asm/auxio.h> #include <asm/auxio.h>
@ -30,10 +31,9 @@
#define PMC_IDLE_REG 0x00 #define PMC_IDLE_REG 0x00
#define PMC_IDLE_ON 0x01 #define PMC_IDLE_ON 0x01
volatile static u8 __iomem *regs; static u8 __iomem *regs;
static int pmc_regsize;
#define pmc_readb(offs) (sbus_readb(regs+offs)) #define pmc_readb(offs) (sbus_readb(regs+offs))
#define pmc_writeb(val, offs) (sbus_writeb(val, regs+offs)) #define pmc_writeb(val, offs) (sbus_writeb(val, regs+offs))
/* /*
@ -53,31 +53,11 @@ void pmc_swift_idle(void)
#endif #endif
} }
static inline void pmc_free(void) static int __devinit pmc_probe(struct of_device *op,
const struct of_device_id *match)
{ {
sbus_iounmap(regs, pmc_regsize); regs = of_ioremap(&op->resource[0], 0,
} resource_size(&op->resource[0]), PMC_OBPNAME);
static int __init pmc_probe(void)
{
struct sbus_bus *sbus = NULL;
struct sbus_dev *sdev = NULL;
for_each_sbus(sbus) {
for_each_sbusdev(sdev, sbus) {
if (!strcmp(sdev->prom_name, PMC_OBPNAME)) {
goto sbus_done;
}
}
}
sbus_done:
if (!sdev) {
return -ENODEV;
}
pmc_regsize = sdev->reg_addrs[0].reg_size;
regs = sbus_ioremap(&sdev->resource[0], 0,
pmc_regsize, PMC_OBPNAME);
if (!regs) { if (!regs) {
printk(KERN_ERR "%s: unable to map registers\n", PMC_DEVNAME); printk(KERN_ERR "%s: unable to map registers\n", PMC_DEVNAME);
return -ENODEV; return -ENODEV;
@ -92,8 +72,27 @@ static int __init pmc_probe(void)
return 0; return 0;
} }
static struct of_device_id pmc_match[] = {
{
.name = PMC_OBPNAME,
},
{},
};
MODULE_DEVICE_TABLE(of, pmc_match);
static struct of_platform_driver pmc_driver = {
.name = "pmc",
.match_table = pmc_match,
.probe = pmc_probe,
};
static int __init pmc_init(void)
{
return of_register_driver(&pmc_driver, &of_bus_type);
}
/* This driver is not critical to the boot process /* This driver is not critical to the boot process
* and is easiest to ioremap when SBus is already * and is easiest to ioremap when SBus is already
* initialized, so we install ourselves thusly: * initialized, so we install ourselves thusly:
*/ */
__initcall(pmc_probe); __initcall(pmc_init);