1 // SPDX-License-Identifier: GPL-2.0-only
3  * apds9802als.c - apds9802  ALS Driver
14 #include <linux/i2c.h>
51 	int retry = 10;  in als_wait_for_data_ready()  local
56 	} while (!(ret & 0x80) && retry--);  in als_wait_for_data_ready()
58 	if (retry < 0) {  in als_wait_for_data_ready()
60 		return -ETIMEDOUT;  in als_wait_for_data_ready()
76 	mutex_lock(&data->mutex);  in als_lux0_input_data_show()
97 	mutex_unlock(&data->mutex);  in als_lux0_input_data_show()
103 	mutex_unlock(&data->mutex);  in als_lux0_input_data_show()
109 		struct device_attribute *attr, const  char *buf, size_t count)  in als_sensing_range_store()  argument
125 		return -ERANGE;  in als_sensing_range_store()
131 	mutex_lock(&data->mutex);  in als_sensing_range_store()
149 		mutex_unlock(&data->mutex);  in als_sensing_range_store()
151 		return count;  in als_sensing_range_store()
154 	mutex_unlock(&data->mutex);  in als_sensing_range_store()
164 	mutex_lock(&data->mutex);  in als_set_power_state()
174 	mutex_unlock(&data->mutex);  in als_set_power_state()
199 		dev_err(&client->dev, "failed default switch on write\n");  in als_set_default_config()
205 		dev_err(&client->dev, "failed default LUX on write\n");  in als_set_default_config()
210 	als_wait_for_data_ready(&client->dev);  in als_set_default_config()
223 		dev_err(&client->dev, "Memory allocation failed\n");  in apds9802als_probe()
224 		return -ENOMEM;  in apds9802als_probe()
227 	res = sysfs_create_group(&client->dev.kobj, &m_als_gr);  in apds9802als_probe()
229 		dev_err(&client->dev, "device create file failed\n");  in apds9802als_probe()
232 	dev_info(&client->dev, "ALS chip found\n");  in apds9802als_probe()
234 	mutex_init(&data->mutex);  in apds9802als_probe()
236 	pm_runtime_set_active(&client->dev);  in apds9802als_probe()
237 	pm_runtime_enable(&client->dev);  in apds9802als_probe()
249 	pm_runtime_get_sync(&client->dev);  in apds9802als_remove()
252 	sysfs_remove_group(&client->dev.kobj, &m_als_gr);  in apds9802als_remove()
254 	pm_runtime_disable(&client->dev);  in apds9802als_remove()
255 	pm_runtime_set_suspended(&client->dev);  in apds9802als_remove()
256 	pm_runtime_put_noidle(&client->dev);  in apds9802als_remove()
294 MODULE_DEVICE_TABLE(i2c, apds9802als_id);