static int __init cs6436_56p_fan_init(void)
{
int ret;
cig_cpld_write_register(0x40, duty_cycle_to_reg_val(50));
ret = platform_driver_register(&cs6436_56p_fan_driver);
if (ret < 0) {
goto exit;
}
fan_data = kzalloc(sizeof(struct cs6436_56p_fan_data), GFP_KERNEL);
if (!fan_data) {
ret = -ENOMEM;
platform_driver_unregister(&cs6436_56p_fan_driver);
goto exit;
}
mutex_init(&fan_data->update_lock);
fan_data->valid = 0;
fan_data->pdev = platform_device_register_simple(DRVNAME, -1, NULL, 0);
if (IS_ERR(fan_data->pdev)) {
ret = PTR_ERR(fan_data->pdev);
platform_driver_unregister(&cs6436_56p_fan_driver);
kfree(fan_data);
goto exit;
}
exit:
return ret;
}
static ssize_t set_duty_cycle(struct device *dev, struct device_attribute *da,
const char *buf, size_t count)
{
int error, value;
struct i2c_client *client = to_i2c_client(dev);
struct as7512_32x_fan_data *data = i2c_get_clientdata(client);
error = kstrtoint(buf, 10, &value);
if (error) {
return error;
}
if (value < 0 || value > FAN_MAX_DUTY_CYCLE) {
return -EINVAL;
}
/* Disable the watchdog timer
*/
error = as7512_32x_fan_write_value(client, 0x33, 0);
if (error != 0) {
dev_dbg(&client->dev, "Unable to disable the watchdog timer\n");
return error;
}
as7512_32x_fan_write_value(client, fan_reg[FAN_DUTY_CYCLE_PERCENTAGE], duty_cycle_to_reg_val(value));
data->valid = 0;
return count;
}
static ssize_t set_duty_cycle(struct device *dev, struct device_attribute *da,
const char *buf, size_t count)
{
int error, value;
error = kstrtoint(buf, 10, &value);
if (error)
return error;
if (value <= 0 || value > FAN_MAX_DUTY_CYCLE)
return -EINVAL;
cig_cpld_write_register(fan_reg[FAN_DUTY_CYCLE_PERCENTAGE], duty_cycle_to_reg_val(value));
return count;
}
static ssize_t set_duty_cycle(struct device *dev, struct device_attribute *da,
const char *buf, size_t count)
{
int error, value;
struct i2c_client *client = to_i2c_client(dev);
error = kstrtoint(buf, 10, &value);
if (error)
return error;
if (value < 0 || value > FAN_MAX_DUTY_CYCLE)
return -EINVAL;
as7712_32x_fan_write_value(client, 0x33, 0); /* Disable fan speed watch dog */
as7712_32x_fan_write_value(client, fan_reg[FAN_DUTY_CYCLE_PERCENTAGE], duty_cycle_to_reg_val(value));
return count;
}
static ssize_t set_duty_cycle(struct device *dev, struct device_attribute *da,
const char *buf, size_t count)
{
int error, value;
struct i2c_client *client = to_i2c_client(dev);
error = kstrtoint(buf, 10, &value);
if (error)
return error;
if (value < FAN_MIN_DUTY_CYCLE) {
value = FAN_MIN_DUTY_CYCLE;
}
if (value > FAN_MAX_DUTY_CYCLE) {
value = FAN_MAX_DUTY_CYCLE;
}
as7116_54x_fan_write_value(client, fan_reg[FAN_DUTY_CYCLE_PERCENTAGE], duty_cycle_to_reg_val(value));
return count;
}
