diff options
Diffstat (limited to 'drivers/hwmon')
| -rw-r--r-- | drivers/hwmon/w83627hf.c | 76 |
1 files changed, 36 insertions, 40 deletions
diff --git a/drivers/hwmon/w83627hf.c b/drivers/hwmon/w83627hf.c index 3ed67a5cd53..7738d30a11b 100644 --- a/drivers/hwmon/w83627hf.c +++ b/drivers/hwmon/w83627hf.c @@ -48,9 +48,16 @@ #include <linux/hwmon-vid.h> #include <linux/err.h> #include <linux/mutex.h> +#include <linux/ioport.h> #include <asm/io.h> #include "lm75.h" +/* The actual ISA address is read from Super-I/O configuration space */ +static unsigned short address; + +#define DRVNAME "w83627hf" +enum chips { w83627hf, w83627thf, w83697hf, w83637hf, w83687thf }; + static u16 force_addr; module_param(force_addr, ushort, 0); MODULE_PARM_DESC(force_addr, @@ -60,12 +67,6 @@ module_param(force_i2c, byte, 0); MODULE_PARM_DESC(force_i2c, "Initialize the i2c address of the sensors"); -/* The actual ISA address is read from Super-I/O configuration space */ -static unsigned short address; - -/* Insmod parameters */ -enum chips { any_chip, w83627hf, w83627thf, w83697hf, w83637hf, w83687thf }; - static int reset; module_param(reset, bool, 0); MODULE_PARM_DESC(reset, "Set to one to reset chip on load"); @@ -298,9 +299,6 @@ struct w83627hf_data { char valid; /* !=0 if following fields are valid */ unsigned long last_updated; /* In jiffies */ - struct i2c_client *lm75; /* for secondary I2C addresses */ - /* pointer to array of 2 subclients */ - u8 in[9]; /* Register value */ u8 in_max[9]; /* Register value */ u8 in_min[9]; /* Register value */ @@ -339,7 +337,7 @@ static void w83627hf_init_client(struct i2c_client *client); static struct i2c_driver w83627hf_driver = { .driver = { .owner = THIS_MODULE, - .name = "w83627hf", + .name = DRVNAME, }, .attach_adapter = w83627hf_detect, .detach_client = w83627hf_detach_client, @@ -931,6 +929,7 @@ sysfs_sensor(3); static int __init w83627hf_find(int sioaddr, unsigned short *addr) { + int err = -ENODEV; u16 val; REG = sioaddr; @@ -943,21 +942,37 @@ static int __init w83627hf_find(int sioaddr, unsigned short *addr) val != W697_DEVID && val != W637_DEVID && val != W687THF_DEVID) { - superio_exit(); - return -ENODEV; + goto exit; } superio_select(W83627HF_LD_HWM); + force_addr &= WINB_ALIGNMENT; + if (force_addr) { + printk(KERN_WARNING DRVNAME ": Forcing address 0x%x\n", + force_addr); + superio_outb(WINB_BASE_REG, force_addr >> 8); + superio_outb(WINB_BASE_REG + 1, force_addr & 0xff); + } val = (superio_inb(WINB_BASE_REG) << 8) | superio_inb(WINB_BASE_REG + 1); *addr = val & WINB_ALIGNMENT; - if (*addr == 0 && force_addr == 0) { - superio_exit(); - return -ENODEV; + if (*addr == 0) { + printk(KERN_WARNING DRVNAME ": Base address not set, " + "skipping\n"); + goto exit; + } + + val = superio_inb(WINB_ACT_REG); + if (!(val & 0x01)) { + printk(KERN_WARNING DRVNAME ": Enabling HWM logical device\n"); + superio_outb(WINB_ACT_REG, val | 0x01); } + err = 0; + + exit: superio_exit(); - return 0; + return err; } static struct attribute *w83627hf_attributes[] = { @@ -1047,24 +1062,12 @@ static int w83627hf_detect(struct i2c_adapter *adapter) int err = 0; const char *client_name = ""; - if(force_addr) - address = force_addr & WINB_ALIGNMENT; - if (!request_region(address + WINB_REGION_OFFSET, WINB_REGION_SIZE, w83627hf_driver.driver.name)) { err = -EBUSY; goto ERROR0; } - if(force_addr) { - printk("w83627hf.o: forcing ISA address 0x%04X\n", address); - superio_enter(); - superio_select(W83627HF_LD_HWM); - superio_outb(WINB_BASE_REG, address >> 8); - superio_outb(WINB_BASE_REG+1, address & 0xff); - superio_exit(); - } - superio_enter(); val= superio_inb(DEVID); if(val == W627_DEVID) @@ -1082,10 +1085,6 @@ static int w83627hf_detect(struct i2c_adapter *adapter) "Unsupported chip (dev_id=0x%02X).\n", val); goto ERROR1; } - - superio_select(W83627HF_LD_HWM); - if((val = 0x01 & superio_inb(WINB_ACT_REG)) == 0) - superio_outb(WINB_ACT_REG, 1); superio_exit(); /* OK. For now, we presume we have a valid client. We now create the @@ -1128,8 +1127,6 @@ static int w83627hf_detect(struct i2c_adapter *adapter) if ((err = i2c_attach_client(new_client))) goto ERROR2; - data->lm75 = NULL; - /* Initialize the chip */ w83627hf_init_client(new_client); @@ -1374,7 +1371,7 @@ static void w83627hf_init_client(struct i2c_client *client) { struct w83627hf_data *data = i2c_get_clientdata(client); int i; - int type = data->type; + enum chips type = data->type; u8 tmp; if (reset) { @@ -1407,19 +1404,18 @@ static void w83627hf_init_client(struct i2c_client *client) w83627hf_write_value(client, W83781D_REG_I2C_ADDR, force_i2c); /* Read VID only once */ - if (w83627hf == data->type || w83637hf == data->type) { + if (type == w83627hf || type == w83637hf) { int lo = w83627hf_read_value(client, W83781D_REG_VID_FANDIV); int hi = w83627hf_read_value(client, W83781D_REG_CHIPID); data->vid = (lo & 0x0f) | ((hi & 0x01) << 4); - } else if (w83627thf == data->type) { + } else if (type == w83627thf) { data->vid = w83627thf_read_gpio5(client); - } else if (w83687thf == data->type) { + } else if (type == w83687thf) { data->vid = w83687thf_read_vid(client); } /* Read VRM & OVT Config only once */ - if (w83627thf == data->type || w83637hf == data->type - || w83687thf == data->type) { + if (type == w83627thf || type == w83637hf || type == w83687thf) { data->vrm_ovt = w83627hf_read_value(client, W83627THF_REG_VRM_OVT_CFG); } |