sparc32: Convert pmc to OF driver.

Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/arch/sparc/kernel/pmc.c b/arch/sparc/kernel/pmc.c
index 7eca887..9976e82 100644 (file)
--- a/arch/sparc/kernel/pmc.c
+++ b/arch/sparc/kernel/pmc.c
@@ -10,9 +10,10 @@
 #include <linux/init.h>
 #include <linux/miscdevice.h>
 #include <linux/pm.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
 
 #include <asm/io.h>
-#include <asm/sbus.h>
 #include <asm/oplib.h>
 #include <asm/uaccess.h>
 #include <asm/auxio.h>
@@ -30,10 +31,9 @@
 #define PMC_IDLE_REG   0x00
 #define PMC_IDLE_ON            0x01
 
-volatile static u8 __iomem *regs; 
-static int pmc_regsize;
+static u8 __iomem *regs;
 
-#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))
 
 /* 
@@ -53,31 +53,11 @@ void pmc_swift_idle(void)
 #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);
-}
-
-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);
+       regs = of_ioremap(&op->resource[0], 0,
+                         resource_size(&op->resource[0]), PMC_OBPNAME);
        if (!regs) {
                printk(KERN_ERR "%s: unable to map registers\n", PMC_DEVNAME);
                return -ENODEV;
@@ -92,8 +72,27 @@ sbus_done:
        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
  * and is easiest to ioremap when SBus is already
  * initialized, so we install ourselves thusly:
  */
-__initcall(pmc_probe);
+__initcall(pmc_init);