sparc32: Convert apc to OF driver.

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

diff --git a/arch/sparc/kernel/apc.c b/arch/sparc/kernel/apc.c
index 5267d48..0a20cd8 100644 (file)
--- a/arch/sparc/kernel/apc.c
+++ b/arch/sparc/kernel/apc.c
@@ -12,9 +12,10 @@
 #include <linux/miscdevice.h>
 #include <linux/smp_lock.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>
@@ -29,11 +30,10 @@
 #define APC_OBPNAME    "power-management"
 #define APC_DEVNAME "apc"
 
-volatile static u8 __iomem *regs; 
-static int apc_regsize;
+static u8 __iomem *regs;
 static int apc_no_idle __initdata = 0;
 
-#define apc_readb(offs)                        (sbus_readb(regs+offs))
+#define apc_readb(offs)                (sbus_readb(regs+offs))
 #define apc_writeb(val, offs)  (sbus_writeb(val, regs+offs))
 
 /* Specify "apc=noidle" on the kernel command line to 
@@ -69,9 +69,9 @@ static void apc_swift_idle(void)
 #endif
 } 
 
-static inline void apc_free(void)
+static inline void apc_free(struct of_device *op)
 {
-       sbus_iounmap(regs, apc_regsize);
+       of_iounmap(&op->resource[0], regs, resource_size(&op->resource[0]));
 }
 
 static int apc_open(struct inode *inode, struct file *f)
@@ -153,52 +153,56 @@ static const struct file_operations apc_fops = {
 
 static struct miscdevice apc_miscdev = { APC_MINOR, APC_DEVNAME, &apc_fops };
 
-static int __init apc_probe(void)
+static int __devinit apc_probe(struct of_device *op,
+                              const struct of_device_id *match)
 {
-       struct sbus_bus *sbus = NULL;
-       struct sbus_dev *sdev = NULL;
-       int iTmp = 0;
-
-       for_each_sbus(sbus) {
-               for_each_sbusdev(sdev, sbus) {
-                       if (!strcmp(sdev->prom_name, APC_OBPNAME)) {
-                               goto sbus_done;
-                       }
-               }
-       }
+       int err;
 
-sbus_done:
-       if (!sdev) {
-               return -ENODEV;
-       }
-
-       apc_regsize = sdev->reg_addrs[0].reg_size;
-       regs = sbus_ioremap(&sdev->resource[0], 0, 
-                                  apc_regsize, APC_OBPNAME);
-       if(!regs) {
+       regs = of_ioremap(&op->resource[0], 0,
+                         resource_size(&op->resource[0]), APC_OBPNAME);
+       if (!regs) {
                printk(KERN_ERR "%s: unable to map registers\n", APC_DEVNAME);
                return -ENODEV;
        }
 
-       iTmp = misc_register(&apc_miscdev);
-       if (iTmp != 0) {
+       err = misc_register(&apc_miscdev);
+       if (err) {
                printk(KERN_ERR "%s: unable to register device\n", APC_DEVNAME);
-               apc_free();
+               apc_free(op);
                return -ENODEV;
        }
 
        /* Assign power management IDLE handler */
-       if(!apc_no_idle)
+       if (!apc_no_idle)
                pm_idle = apc_swift_idle;       
 
        printk(KERN_INFO "%s: power management initialized%s\n", 
-               APC_DEVNAME, apc_no_idle ? " (CPU idle disabled)" : "");
+              APC_DEVNAME, apc_no_idle ? " (CPU idle disabled)" : "");
+
        return 0;
 }
 
+static struct of_device_id apc_match[] = {
+       {
+               .name = APC_OBPNAME,
+       },
+       {},
+};
+MODULE_DEVICE_TABLE(of, apc_match);
+
+static struct of_platform_driver apc_driver = {
+       .name           = "apc",
+       .match_table    = apc_match,
+       .probe          = apc_probe,
+};
+
+static int __init apc_init(void)
+{
+       return of_register_driver(&apc_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(apc_probe);
-
+__initcall(apc_init);