1 // SPDX-License-Identifier: GPL-2.0
3  * Generic serial GNSS receiver driver
9 #include <linux/gnss.h>
25 	struct serdev_device *serdev = gserial->serdev;  in gnss_serial_open()
32 	serdev_device_set_baudrate(serdev, gserial->speed);  in gnss_serial_open()
35 	ret = pm_runtime_get_sync(&serdev->dev);  in gnss_serial_open()
37 		pm_runtime_put_noidle(&serdev->dev);  in gnss_serial_open()
52 	struct serdev_device *serdev = gserial->serdev;  in gnss_serial_close()
56 	pm_runtime_put(&serdev->dev);  in gnss_serial_close()
63 	struct serdev_device *serdev = gserial->serdev;  in gnss_serial_write_raw()
87 	struct gnss_device *gdev = gserial->gdev;  in gnss_serial_receive_buf()
100 	if (!gserial->ops || !gserial->ops->set_power)  in gnss_serial_set_power()
103 	return gserial->ops->set_power(gserial, state);  in gnss_serial_set_power()
113 	struct device_node *node = serdev->dev.of_node;  in gnss_serial_parse_dt()
116 	of_property_read_u32(node, "current-speed", &speed);  in gnss_serial_parse_dt()
118 	gserial->speed = speed;  in gnss_serial_parse_dt()
132 		return ERR_PTR(-ENOMEM);  in gnss_serial_allocate()
134 	gdev = gnss_allocate_device(&serdev->dev);  in gnss_serial_allocate()
136 		ret = -ENOMEM;  in gnss_serial_allocate()
140 	gdev->ops = &gnss_serial_gnss_ops;  in gnss_serial_allocate()
143 	gserial->serdev = serdev;  in gnss_serial_allocate()
144 	gserial->gdev = gdev;  in gnss_serial_allocate()
156 	gnss_put_device(gserial->gdev);  in gnss_serial_allocate()
166 	gnss_put_device(gserial->gdev);  in gnss_serial_free()
173 	struct serdev_device *serdev = gserial->serdev;  in gnss_serial_register()
177 		pm_runtime_enable(&serdev->dev);  in gnss_serial_register()
184 	ret = gnss_register_device(gserial->gdev);  in gnss_serial_register()
192 		pm_runtime_disable(&serdev->dev);  in gnss_serial_register()
202 	struct serdev_device *serdev = gserial->serdev;  in gnss_serial_deregister()
204 	gnss_deregister_device(gserial->gdev);  in gnss_serial_deregister()
207 		pm_runtime_disable(&serdev->dev);  in gnss_serial_deregister()
275 MODULE_DESCRIPTION("Generic serial GNSS receiver driver");