serial: lantiq: Make driver modular (ad406341) · Commits · 戴 / test

drivers/tty/serial/Kconfig

+3 −1

Original line number	Original line	Diff line number	Diff line
	@@ -1034,11 +1034,13 @@ config SERIAL_SIFIVE_CONSOLE
	boot time.)		boot time.)

	config SERIAL_LANTIQ		config SERIAL_LANTIQ
	bool "Lantiq serial driver"		tristate "Lantiq serial driver"
	depends on (LANTIQ \|\| X86) \|\| COMPILE_TEST		depends on (LANTIQ \|\| X86) \|\| COMPILE_TEST
	select SERIAL_CORE		select SERIAL_CORE
	help		help
	Support for UART on Lantiq and Intel SoCs.		Support for UART on Lantiq and Intel SoCs.
			To compile this driver as a module, select M here. The
			module will be called lantiq.

	config SERIAL_LANTIQ_CONSOLE		config SERIAL_LANTIQ_CONSOLE
	bool "Console on Lantiq UART"		bool "Console on Lantiq UART"

drivers/tty/serial/lantiq.c

+25 −4

Original line number	Original line	Diff line number	Diff line
	@@ -15,6 +15,7 @@
	#include <linux/io.h>		#include <linux/io.h>
	#include <linux/ioport.h>		#include <linux/ioport.h>
	#include <linux/lantiq.h>		#include <linux/lantiq.h>
			#include <linux/module.h>
	#include <linux/of_address.h>		#include <linux/of_address.h>
	#include <linux/of_irq.h>		#include <linux/of_irq.h>
	#include <linux/of_platform.h>		#include <linux/of_platform.h>
	@@ -823,8 +824,7 @@ static void free_irq_intel(struct uart_port *port)
	free_irq(ltq_port->common_irq, port);		free_irq(ltq_port->common_irq, port);
	}		}

	static int __init		static int lqasc_probe(struct platform_device *pdev)
	lqasc_probe(struct platform_device *pdev)
	{		{
	struct device_node *node = pdev->dev.of_node;		struct device_node *node = pdev->dev.of_node;
	struct ltq_uart_port *ltq_port;		struct ltq_uart_port *ltq_port;
	@@ -908,6 +908,13 @@ lqasc_probe(struct platform_device *pdev)
	return ret;		return ret;
	}		}

			static int lqasc_remove(struct platform_device *pdev)
			{
			struct uart_port *port = platform_get_drvdata(pdev);

			return uart_remove_one_port(&lqasc_reg, port);
			}

	static const struct ltq_soc_data soc_data_lantiq = {		static const struct ltq_soc_data soc_data_lantiq = {
	.fetch_irq = fetch_irq_lantiq,		.fetch_irq = fetch_irq_lantiq,
	.request_irq = request_irq_lantiq,		.request_irq = request_irq_lantiq,
	@@ -925,8 +932,11 @@ static const struct of_device_id ltq_asc_match[] = {
	{ .compatible = "intel,lgm-asc", .data = &soc_data_intel },		{ .compatible = "intel,lgm-asc", .data = &soc_data_intel },
	{},		{},
	};		};
			MODULE_DEVICE_TABLE(of, ltq_asc_match);

	static struct platform_driver lqasc_driver = {		static struct platform_driver lqasc_driver = {
			.probe = lqasc_probe,
			.remove = lqasc_remove,
	.driver = {		.driver = {
	.name = DRVNAME,		.name = DRVNAME,
	.of_match_table = ltq_asc_match,		.of_match_table = ltq_asc_match,
	@@ -942,10 +952,21 @@ init_lqasc(void)
	if (ret != 0)		if (ret != 0)
	return ret;		return ret;

	ret = platform_driver_probe(&lqasc_driver, lqasc_probe);		ret = platform_driver_register(&lqasc_driver);
	if (ret != 0)		if (ret != 0)
	uart_unregister_driver(&lqasc_reg);		uart_unregister_driver(&lqasc_reg);

	return ret;		return ret;
	}		}
	device_initcall(init_lqasc);
			static void __exit exit_lqasc(void)
			{
			platform_driver_unregister(&lqasc_driver);
			uart_unregister_driver(&lqasc_reg);
			}

			module_init(init_lqasc);
			module_exit(exit_lqasc);

			MODULE_DESCRIPTION("Serial driver for Lantiq & Intel gateway SoCs");
			MODULE_LICENSE("GPL v2");

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