static void adm1025_init_client(struct i2c_client *client) { u8 reg; struct adm1025_data *data = i2c_get_clientdata(client); int i; data->vrm = vid_which_vrm(); /* * Set high limits * Usually we avoid setting limits on driver init, but it happens * that the ADM1025 comes with stupid default limits (all registers * set to 0). In case the chip has not gone through any limit * setting yet, we better set the high limits to the max so that * no alarm triggers. */ for (i = 0; i < 6; i++) { reg = i2c_smbus_read_byte_data(client, ADM1025_REG_IN_MAX(i)); if (reg == 0) i2c_smbus_write_byte_data(client, ADM1025_REG_IN_MAX(i), 0xFF); } for (i = 0; i < 2; i++) { reg = i2c_smbus_read_byte_data(client, ADM1025_REG_TEMP_HIGH(i)); if (reg == 0) i2c_smbus_write_byte_data(client, ADM1025_REG_TEMP_HIGH(i), 0x7F); } /* * Start the conversions */ reg = i2c_smbus_read_byte_data(client, ADM1025_REG_CONFIG); if (!(reg & 0x01)) i2c_smbus_write_byte_data(client, ADM1025_REG_CONFIG, (reg&0x7E)|0x01); }
static void adm1025_init_client(struct i2c_client *client) { u8 reg; struct adm1025_data *data = i2c_get_clientdata(client); int i; data->vrm = vid_which_vrm(); /* */ for (i = 0; i < 6; i++) { reg = i2c_smbus_read_byte_data(client, ADM1025_REG_IN_MAX(i)); if (reg == 0) i2c_smbus_write_byte_data(client, ADM1025_REG_IN_MAX(i), 0xFF); } for (i = 0; i < 2; i++) { reg = i2c_smbus_read_byte_data(client, ADM1025_REG_TEMP_HIGH(i)); if (reg == 0) i2c_smbus_write_byte_data(client, ADM1025_REG_TEMP_HIGH(i), 0x7F); } /* */ reg = i2c_smbus_read_byte_data(client, ADM1025_REG_CONFIG); if (!(reg & 0x01)) i2c_smbus_write_byte_data(client, ADM1025_REG_CONFIG, (reg&0x7E)|0x01); }
static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { int index = to_sensor_dev_attr(attr)->index; struct i2c_client *client = to_i2c_client(dev); struct adm1025_data *data = i2c_get_clientdata(client); long val = simple_strtol(buf, NULL, 10); mutex_lock(&data->update_lock); data->temp_max[index] = TEMP_TO_REG(val); i2c_smbus_write_byte_data(client, ADM1025_REG_TEMP_HIGH(index), data->temp_max[index]); mutex_unlock(&data->update_lock); return count; }
static struct adm1025_data *adm1025_update_device(struct device *dev) { struct adm1025_data *data = dev_get_drvdata(dev); struct i2c_client *client = data->client; mutex_lock(&data->update_lock); if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) { int i; dev_dbg(&client->dev, "Updating data.\n"); for (i = 0; i < 6; i++) { data->in[i] = i2c_smbus_read_byte_data(client, ADM1025_REG_IN(i)); data->in_min[i] = i2c_smbus_read_byte_data(client, ADM1025_REG_IN_MIN(i)); data->in_max[i] = i2c_smbus_read_byte_data(client, ADM1025_REG_IN_MAX(i)); } for (i = 0; i < 2; i++) { data->temp[i] = i2c_smbus_read_byte_data(client, ADM1025_REG_TEMP(i)); data->temp_min[i] = i2c_smbus_read_byte_data(client, ADM1025_REG_TEMP_LOW(i)); data->temp_max[i] = i2c_smbus_read_byte_data(client, ADM1025_REG_TEMP_HIGH(i)); } data->alarms = i2c_smbus_read_byte_data(client, ADM1025_REG_STATUS1) | (i2c_smbus_read_byte_data(client, ADM1025_REG_STATUS2) << 8); data->vid = (i2c_smbus_read_byte_data(client, ADM1025_REG_VID) & 0x0f) | ((i2c_smbus_read_byte_data(client, ADM1025_REG_VID4) & 0x01) << 4); data->last_updated = jiffies; data->valid = 1; } mutex_unlock(&data->update_lock); return data; }
static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { int index = to_sensor_dev_attr(attr)->index; struct adm1025_data *data = dev_get_drvdata(dev); struct i2c_client *client = data->client; long val; int err; err = kstrtol(buf, 10, &val); if (err) return err; mutex_lock(&data->update_lock); data->temp_max[index] = TEMP_TO_REG(val); i2c_smbus_write_byte_data(client, ADM1025_REG_TEMP_HIGH(index), data->temp_max[index]); mutex_unlock(&data->update_lock); return count; }