X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fhwmon%2Fgl520sm.c;h=14e810f3c2c09db43ab6687efbfaa8076c65fc5c;hb=2a2ed2db353d949c06b6ef8b6913f65b39111eab;hp=12fd757066fc9cad503b32a5c1df1e056909fbb5;hpb=c08319a9d50b5c9cb4fdb33728bd16497cf4ddd3;p=linux-2.6-omap-h63xx.git diff --git a/drivers/hwmon/gl520sm.c b/drivers/hwmon/gl520sm.c index 12fd757066f..14e810f3c2c 100644 --- a/drivers/hwmon/gl520sm.c +++ b/drivers/hwmon/gl520sm.c @@ -29,6 +29,7 @@ #include #include #include +#include /* Type of the extra sensor */ static unsigned short extra_sensor_type; @@ -109,10 +110,10 @@ static struct gl520_data *gl520_update_device(struct device *dev); /* Driver data */ static struct i2c_driver gl520_driver = { - .owner = THIS_MODULE, - .name = "gl520sm", + .driver = { + .name = "gl520sm", + }, .id = I2C_DRIVERID_GL520, - .flags = I2C_DF_NOTIFY, .attach_adapter = gl520_attach_adapter, .detach_client = gl520_detach_client, }; @@ -121,7 +122,7 @@ static struct i2c_driver gl520_driver = { struct gl520_data { struct i2c_client client; struct class_device *class_dev; - struct semaphore update_lock; + struct mutex update_lock; char valid; /* zero until the following fields are valid */ unsigned long last_updated; /* in jiffies */ @@ -303,7 +304,7 @@ static ssize_t set_in_min(struct i2c_client *client, struct gl520_data *data, co long v = simple_strtol(buf, NULL, 10); u8 r; - down(&data->update_lock); + mutex_lock(&data->update_lock); if (n == 0) r = VDD_TO_REG(v); @@ -317,7 +318,7 @@ static ssize_t set_in_min(struct i2c_client *client, struct gl520_data *data, co else gl520_write_value(client, reg, r); - up(&data->update_lock); + mutex_unlock(&data->update_lock); return count; } @@ -331,7 +332,7 @@ static ssize_t set_in_max(struct i2c_client *client, struct gl520_data *data, co else r = IN_TO_REG(v); - down(&data->update_lock); + mutex_lock(&data->update_lock); data->in_max[n] = r; @@ -340,7 +341,7 @@ static ssize_t set_in_max(struct i2c_client *client, struct gl520_data *data, co else gl520_write_value(client, reg, r); - up(&data->update_lock); + mutex_unlock(&data->update_lock); return count; } @@ -373,7 +374,7 @@ static ssize_t set_fan_min(struct i2c_client *client, struct gl520_data *data, c unsigned long v = simple_strtoul(buf, NULL, 10); u8 r; - down(&data->update_lock); + mutex_lock(&data->update_lock); r = FAN_TO_REG(v, data->fan_div[n - 1]); data->fan_min[n - 1] = r; @@ -390,7 +391,7 @@ static ssize_t set_fan_min(struct i2c_client *client, struct gl520_data *data, c data->beep_mask &= data->alarm_mask; gl520_write_value(client, GL520_REG_BEEP_MASK, data->beep_mask); - up(&data->update_lock); + mutex_unlock(&data->update_lock); return count; } @@ -409,7 +410,7 @@ static ssize_t set_fan_div(struct i2c_client *client, struct gl520_data *data, c return -EINVAL; } - down(&data->update_lock); + mutex_lock(&data->update_lock); data->fan_div[n - 1] = r; if (n == 1) @@ -417,7 +418,7 @@ static ssize_t set_fan_div(struct i2c_client *client, struct gl520_data *data, c else gl520_write_value(client, reg, (gl520_read_value(client, reg) & ~0x30) | (r << 4)); - up(&data->update_lock); + mutex_unlock(&data->update_lock); return count; } @@ -425,10 +426,10 @@ static ssize_t set_fan_off(struct i2c_client *client, struct gl520_data *data, c { u8 r = simple_strtoul(buf, NULL, 10)?1:0; - down(&data->update_lock); + mutex_lock(&data->update_lock); data->fan_off = r; gl520_write_value(client, reg, (gl520_read_value(client, reg) & ~0x0c) | (r << 2)); - up(&data->update_lock); + mutex_unlock(&data->update_lock); return count; } @@ -454,10 +455,10 @@ static ssize_t set_temp_max(struct i2c_client *client, struct gl520_data *data, { long v = simple_strtol(buf, NULL, 10); - down(&data->update_lock); - data->temp_max[n - 1] = TEMP_TO_REG(v);; + mutex_lock(&data->update_lock); + data->temp_max[n - 1] = TEMP_TO_REG(v); gl520_write_value(client, reg, data->temp_max[n - 1]); - up(&data->update_lock); + mutex_unlock(&data->update_lock); return count; } @@ -465,10 +466,10 @@ static ssize_t set_temp_max_hyst(struct i2c_client *client, struct gl520_data *d { long v = simple_strtol(buf, NULL, 10); - down(&data->update_lock); + mutex_lock(&data->update_lock); data->temp_max_hyst[n - 1] = TEMP_TO_REG(v); gl520_write_value(client, reg, data->temp_max_hyst[n - 1]); - up(&data->update_lock); + mutex_unlock(&data->update_lock); return count; } @@ -491,10 +492,10 @@ static ssize_t set_beep_enable(struct i2c_client *client, struct gl520_data *dat { u8 r = simple_strtoul(buf, NULL, 10)?0:1; - down(&data->update_lock); + mutex_lock(&data->update_lock); data->beep_enable = !r; gl520_write_value(client, reg, (gl520_read_value(client, reg) & ~0x04) | (r << 2)); - up(&data->update_lock); + mutex_unlock(&data->update_lock); return count; } @@ -502,11 +503,11 @@ static ssize_t set_beep_mask(struct i2c_client *client, struct gl520_data *data, { u8 r = simple_strtoul(buf, NULL, 10); - down(&data->update_lock); + mutex_lock(&data->update_lock); r &= data->alarm_mask; data->beep_mask = r; gl520_write_value(client, reg, r); - up(&data->update_lock); + mutex_unlock(&data->update_lock); return count; } @@ -536,11 +537,10 @@ static int gl520_detect(struct i2c_adapter *adapter, int address, int kind) client structure, even though we cannot fill it completely yet. But it allows us to access gl520_{read,write}_value. */ - if (!(data = kmalloc(sizeof(struct gl520_data), GFP_KERNEL))) { + if (!(data = kzalloc(sizeof(struct gl520_data), GFP_KERNEL))) { err = -ENOMEM; goto exit; } - memset(data, 0, sizeof(struct gl520_data)); new_client = &data->client; i2c_set_clientdata(new_client, data); @@ -562,7 +562,7 @@ static int gl520_detect(struct i2c_adapter *adapter, int address, int kind) /* Fill in the remaining client fields */ strlcpy(new_client->name, "gl520sm", I2C_NAME_SIZE); 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))) @@ -686,7 +686,7 @@ static struct gl520_data *gl520_update_device(struct device *dev) struct gl520_data *data = i2c_get_clientdata(client); int val; - down(&data->update_lock); + mutex_lock(&data->update_lock); if (time_after(jiffies, data->last_updated + 2 * HZ) || !data->valid) { @@ -751,7 +751,7 @@ static struct gl520_data *gl520_update_device(struct device *dev) data->valid = 1; } - up(&data->update_lock); + mutex_unlock(&data->update_lock); return data; }