diff options
Diffstat (limited to 'drivers/hwmon/w83627hf.c')
| -rw-r--r-- | drivers/hwmon/w83627hf.c | 21 |
1 files changed, 13 insertions, 8 deletions
diff --git a/drivers/hwmon/w83627hf.c b/drivers/hwmon/w83627hf.c index 7f6f7280878df..494274d27f01d 100644 --- a/drivers/hwmon/w83627hf.c +++ b/drivers/hwmon/w83627hf.c @@ -142,10 +142,14 @@ superio_exit(void) #define WINB_BASE_REG 0x60 /* Constants specified below */ -/* Length of ISA address segment */ -#define WINB_EXTENT 8 +/* Alignment of the base address */ +#define WINB_ALIGNMENT ~7 -/* Where are the ISA address/data registers relative to the base address */ +/* Offset & size of I/O region we are interested in */ +#define WINB_REGION_OFFSET 5 +#define WINB_REGION_SIZE 2 + +/* Where are the sensors address/data registers relative to the base address */ #define W83781D_ADDR_REG_OFFSET 5 #define W83781D_DATA_REG_OFFSET 6 @@ -981,7 +985,7 @@ static int __init w83627hf_find(int sioaddr, unsigned short *addr) superio_select(W83627HF_LD_HWM); val = (superio_inb(WINB_BASE_REG) << 8) | superio_inb(WINB_BASE_REG + 1); - *addr = val & ~(WINB_EXTENT - 1); + *addr = val & WINB_ALIGNMENT; if (*addr == 0 && force_addr == 0) { superio_exit(); return -ENODEV; @@ -1000,9 +1004,10 @@ static int w83627hf_detect(struct i2c_adapter *adapter) const char *client_name = ""; if(force_addr) - address = force_addr & ~(WINB_EXTENT - 1); + address = force_addr & WINB_ALIGNMENT; - if (!request_region(address, WINB_EXTENT, w83627hf_driver.name)) { + if (!request_region(address + WINB_REGION_OFFSET, WINB_REGION_SIZE, + w83627hf_driver.name)) { err = -EBUSY; goto ERROR0; } @@ -1148,7 +1153,7 @@ static int w83627hf_detect(struct i2c_adapter *adapter) ERROR2: kfree(data); ERROR1: - release_region(address, WINB_EXTENT); + release_region(address + WINB_REGION_OFFSET, WINB_REGION_SIZE); ERROR0: return err; } @@ -1163,7 +1168,7 @@ static int w83627hf_detach_client(struct i2c_client *client) if ((err = i2c_detach_client(client))) return err; - release_region(client->addr, WINB_EXTENT); + release_region(client->addr + WINB_REGION_OFFSET, WINB_REGION_SIZE); kfree(data); return 0; |