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| 2 | |
| 3 | * Serial core controller driver
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| 4 | *
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| 5 | * Copyright (C) 2023 Texas Instruments Incorporated - https://www.ti.com/
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| 6 | * Author: Tony Lindgren <[email protected]>
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| 7 | *
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| 8 | * This driver manages the serial core controller struct device instances.
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| 9 | * The serial core controller devices are children of the physical serial
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| 10 | * port device.
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| 11 |
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| 12 |
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| 13 | #include <linux/device.h>
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| 14 | #include <linux/module.h>
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| 15 | #include <linux/pm_runtime.h>
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| 16 | #include <linux/serial_core.h>
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| 17 | #include <linux/spinlock.h>
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| 18 |
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| 19 | #include "serial_base.h"
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| 20 |
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| 21 | static int serial_ctrl_probe(struct device *dev)
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| 22 | {
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| 23 | pm_runtime_enable(dev);
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| 24 |
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| 25 | return 0;
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| 26 | }
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| 27 |
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| 28 | static int serial_ctrl_remove(struct device *dev)
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| 29 | {
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| 30 | pm_runtime_disable(dev);
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| 31 |
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| 32 | return 0;
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| 33 | }
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| 34 |
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| 35 | |
| 36 | * Serial core controller device init functions. Note that the physical
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| 37 | * serial port device driver may not have completed probe at this point.
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| 38 |
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| 39 | int serial_ctrl_register_port(struct uart_driver *drv, struct uart_port *port)
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| 40 | {
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| 41 | return serial_core_register_port(drv, port);
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| 42 | }
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| 43 |
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| 44 | void serial_ctrl_unregister_port(struct uart_driver *drv, struct uart_port *port)
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| 45 | {
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| 46 | serial_core_unregister_port(drv, port);
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| 47 | }
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| 48 |
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| 49 | static struct device_driver serial_ctrl_driver = {
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| 50 | .name = "ctrl",
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| 51 | .suppress_bind_attrs = true,
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| 52 | .probe = serial_ctrl_probe,
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| 53 | .remove = serial_ctrl_remove,
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| 54 | };
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| 55 |
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| 56 | int serial_base_ctrl_init(void)
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| 57 | {
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| 58 | return serial_base_driver_register(&serial_ctrl_driver);
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| 59 | }
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| 60 |
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| 61 | void serial_base_ctrl_exit(void)
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| 62 | {
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| 63 | serial_base_driver_unregister(&serial_ctrl_driver);
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| 64 | }
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| 65 |
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| 66 | MODULE_AUTHOR("Tony Lindgren <[email protected]>");
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| 67 | MODULE_DESCRIPTION("Serial core controller driver");
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| 68 | MODULE_LICENSE("GPL");
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