diff options
author | Arjan van de Ven <arjan@linux.intel.com> | 2008-10-17 09:20:26 -0700 |
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committer | Arjan van de Ven <arjan@linux.intel.com> | 2008-10-17 09:20:26 -0700 |
commit | 651dab4264e4ba0e563f5ff56f748127246e9065 (patch) | |
tree | 016630974bdcb00fe529b673f96d389e0fd6dc94 /arch/sparc/kernel/apc.c | |
parent | 40b8606253552109815786e5d4b0de98782d31f5 (diff) | |
parent | 2e532d68a2b3e2aa6b19731501222069735c741c (diff) |
Merge commit 'linus/master' into merge-linus
Conflicts:
arch/x86/kvm/i8254.c
Diffstat (limited to 'arch/sparc/kernel/apc.c')
-rw-r--r-- | arch/sparc/kernel/apc.c | 72 |
1 files changed, 38 insertions, 34 deletions
diff --git a/arch/sparc/kernel/apc.c b/arch/sparc/kernel/apc.c index 5267d48fb2c..4dd1ba752ce 100644 --- 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 __initdata 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); |