X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=drivers%2Fhwmon%2Fit87.c;h=06df92b3ee492ccbfe3db607e1bd221e65a48b87;hb=c9becf58d935265919bf1cb348b2c04492c8949d;hp=0da7c9c508c31e2e6de57ae89c0a86eb7d730d72;hpb=0feb9bfcfa3f9bf67a4a1e3f2608700ad73f92ed;p=powerpc.git diff --git a/drivers/hwmon/it87.c b/drivers/hwmon/it87.c index 0da7c9c508..06df92b3ee 100644 --- a/drivers/hwmon/it87.c +++ b/drivers/hwmon/it87.c @@ -41,12 +41,12 @@ #include #include #include +#include #include /* Addresses to scan */ -static unsigned short normal_i2c[] = { 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, - 0x2e, 0x2f, I2C_CLIENT_END }; +static unsigned short normal_i2c[] = { 0x2d, I2C_CLIENT_END }; static unsigned short isa_address; /* Insmod parameters */ @@ -195,10 +195,10 @@ static int DIV_TO_REG(int val) struct it87_data { struct i2c_client client; struct class_device *class_dev; - struct semaphore lock; + struct mutex lock; enum chips type; - struct semaphore update_lock; + struct mutex update_lock; char valid; /* !=0 if following fields are valid */ unsigned long last_updated; /* In jiffies */ @@ -225,9 +225,8 @@ static int it87_isa_attach_adapter(struct i2c_adapter *adapter); static int it87_detect(struct i2c_adapter *adapter, int address, int kind); static int it87_detach_client(struct i2c_client *client); -static int it87_read_value(struct i2c_client *client, u8 register); -static int it87_write_value(struct i2c_client *client, u8 register, - u8 value); +static int it87_read_value(struct i2c_client *client, u8 reg); +static int it87_write_value(struct i2c_client *client, u8 reg, u8 value); static struct it87_data *it87_update_device(struct device *dev); static int it87_check_pwm(struct i2c_client *client); static void it87_init_client(struct i2c_client *client, struct it87_data *data); @@ -291,11 +290,11 @@ static ssize_t set_in_min(struct device *dev, struct device_attribute *attr, struct it87_data *data = i2c_get_clientdata(client); unsigned long val = simple_strtoul(buf, NULL, 10); - down(&data->update_lock); + mutex_lock(&data->update_lock); data->in_min[nr] = IN_TO_REG(val); it87_write_value(client, IT87_REG_VIN_MIN(nr), data->in_min[nr]); - up(&data->update_lock); + mutex_unlock(&data->update_lock); return count; } static ssize_t set_in_max(struct device *dev, struct device_attribute *attr, @@ -308,11 +307,11 @@ static ssize_t set_in_max(struct device *dev, struct device_attribute *attr, struct it87_data *data = i2c_get_clientdata(client); unsigned long val = simple_strtoul(buf, NULL, 10); - down(&data->update_lock); + mutex_lock(&data->update_lock); data->in_max[nr] = IN_TO_REG(val); it87_write_value(client, IT87_REG_VIN_MAX(nr), data->in_max[nr]); - up(&data->update_lock); + mutex_unlock(&data->update_lock); return count; } @@ -382,10 +381,10 @@ static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, struct it87_data *data = i2c_get_clientdata(client); int val = simple_strtol(buf, NULL, 10); - down(&data->update_lock); + mutex_lock(&data->update_lock); data->temp_high[nr] = TEMP_TO_REG(val); it87_write_value(client, IT87_REG_TEMP_HIGH(nr), data->temp_high[nr]); - up(&data->update_lock); + mutex_unlock(&data->update_lock); return count; } static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr, @@ -398,10 +397,10 @@ static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr, struct it87_data *data = i2c_get_clientdata(client); int val = simple_strtol(buf, NULL, 10); - down(&data->update_lock); + mutex_lock(&data->update_lock); data->temp_low[nr] = TEMP_TO_REG(val); it87_write_value(client, IT87_REG_TEMP_LOW(nr), data->temp_low[nr]); - up(&data->update_lock); + mutex_unlock(&data->update_lock); return count; } #define show_temp_offset(offset) \ @@ -441,7 +440,7 @@ static ssize_t set_sensor(struct device *dev, struct device_attribute *attr, struct it87_data *data = i2c_get_clientdata(client); int val = simple_strtol(buf, NULL, 10); - down(&data->update_lock); + mutex_lock(&data->update_lock); data->sensor &= ~(1 << nr); data->sensor &= ~(8 << nr); @@ -451,11 +450,11 @@ static ssize_t set_sensor(struct device *dev, struct device_attribute *attr, else if (val == 2) data->sensor |= 8 << nr; else if (val != 0) { - up(&data->update_lock); + mutex_unlock(&data->update_lock); return -EINVAL; } it87_write_value(client, IT87_REG_TEMP_ENABLE, data->sensor); - up(&data->update_lock); + mutex_unlock(&data->update_lock); return count; } #define show_sensor_offset(offset) \ @@ -525,7 +524,7 @@ static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, int val = simple_strtol(buf, NULL, 10); u8 reg = it87_read_value(client, IT87_REG_FAN_DIV); - down(&data->update_lock); + mutex_lock(&data->update_lock); switch (nr) { case 0: data->fan_div[nr] = reg & 0x07; break; case 1: data->fan_div[nr] = (reg >> 3) & 0x07; break; @@ -534,7 +533,7 @@ static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr])); it87_write_value(client, IT87_REG_FAN_MIN(nr), data->fan_min[nr]); - up(&data->update_lock); + mutex_unlock(&data->update_lock); return count; } static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr, @@ -549,7 +548,7 @@ static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr, int i, min[3]; u8 old; - down(&data->update_lock); + mutex_lock(&data->update_lock); old = it87_read_value(client, IT87_REG_FAN_DIV); for (i = 0; i < 3; i++) @@ -577,7 +576,7 @@ static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr, data->fan_min[i]=FAN_TO_REG(min[i], DIV_FROM_REG(data->fan_div[i])); it87_write_value(client, IT87_REG_FAN_MIN(i), data->fan_min[i]); } - up(&data->update_lock); + mutex_unlock(&data->update_lock); return count; } static ssize_t set_pwm_enable(struct device *dev, @@ -590,7 +589,7 @@ static ssize_t set_pwm_enable(struct device *dev, struct it87_data *data = i2c_get_clientdata(client); int val = simple_strtol(buf, NULL, 10); - down(&data->update_lock); + mutex_lock(&data->update_lock); if (val == 0) { int tmp; @@ -607,11 +606,11 @@ static ssize_t set_pwm_enable(struct device *dev, /* set saved pwm value, clear FAN_CTLX PWM mode bit */ it87_write_value(client, IT87_REG_PWM(nr), PWM_TO_REG(data->manual_pwm_ctl[nr])); } else { - up(&data->update_lock); + mutex_unlock(&data->update_lock); return -EINVAL; } - up(&data->update_lock); + mutex_unlock(&data->update_lock); return count; } static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, @@ -627,11 +626,11 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, if (val < 0 || val > 255) return -EINVAL; - down(&data->update_lock); + mutex_lock(&data->update_lock); data->manual_pwm_ctl[nr] = val; if (data->fan_main_ctrl & (1 << nr)) it87_write_value(client, IT87_REG_PWM(nr), PWM_TO_REG(data->manual_pwm_ctl[nr])); - up(&data->update_lock); + mutex_unlock(&data->update_lock); return count; } @@ -777,7 +776,7 @@ static int it87_detect(struct i2c_adapter *adapter, int address, int kind) new_client = &data->client; if (is_isa) - init_MUTEX(&data->lock); + mutex_init(&data->lock); i2c_set_clientdata(new_client, data); new_client->addr = address; new_client->adapter = adapter; @@ -824,12 +823,17 @@ static int it87_detect(struct i2c_adapter *adapter, int address, int kind) strlcpy(new_client->name, name, I2C_NAME_SIZE); data->type = kind; data->valid = 0; - init_MUTEX(&data->update_lock); + mutex_init(&data->update_lock); /* Tell the I2C layer a new client has arrived */ if ((err = i2c_attach_client(new_client))) goto ERROR2; + if (!is_isa) + dev_info(&new_client->dev, "The I2C interface to IT87xxF " + "hardware monitoring chips is deprecated. Please " + "report if you still rely on it.\n"); + /* Check PWM configuration */ enable_pwm_interface = it87_check_pwm(new_client); @@ -946,10 +950,10 @@ static int it87_read_value(struct i2c_client *client, u8 reg) int res; if (i2c_is_isa_client(client)) { - down(&data->lock); + mutex_lock(&data->lock); outb_p(reg, client->addr + IT87_ADDR_REG_OFFSET); res = inb_p(client->addr + IT87_DATA_REG_OFFSET); - up(&data->lock); + mutex_unlock(&data->lock); return res; } else return i2c_smbus_read_byte_data(client, reg); @@ -965,10 +969,10 @@ static int it87_write_value(struct i2c_client *client, u8 reg, u8 value) struct it87_data *data = i2c_get_clientdata(client); if (i2c_is_isa_client(client)) { - down(&data->lock); + mutex_lock(&data->lock); outb_p(reg, client->addr + IT87_ADDR_REG_OFFSET); outb_p(value, client->addr + IT87_DATA_REG_OFFSET); - up(&data->lock); + mutex_unlock(&data->lock); return 0; } else return i2c_smbus_write_byte_data(client, reg, value); @@ -1094,7 +1098,7 @@ static struct it87_data *it87_update_device(struct device *dev) struct it87_data *data = i2c_get_clientdata(client); int i; - down(&data->update_lock); + mutex_lock(&data->update_lock); if (time_after(jiffies, data->last_updated + HZ + HZ / 2) || !data->valid) { @@ -1156,7 +1160,7 @@ static struct it87_data *it87_update_device(struct device *dev) data->valid = 1; } - up(&data->update_lock); + mutex_unlock(&data->update_lock); return data; } @@ -1182,7 +1186,8 @@ static int __init sm_it87_init(void) static void __exit sm_it87_exit(void) { - i2c_isa_del_driver(&it87_isa_driver); + if (isa_address) + i2c_isa_del_driver(&it87_isa_driver); i2c_del_driver(&it87_driver); }