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| author | Rahul Tanwar <rahul.tanwar@linux.intel.com> | 2020-05-11 13:57:27 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-05-15 12:22:19 +0200 |
| commit | ad406341bdd7d22ba9497931c2df5dde6bb9440e (patch) | |
| tree | 3d9ad5e0e14215b47a993a253f4a798047eda8c2 /drivers/tty/serial | |
| parent | ea7d3fd8a6d0654f8bbb1cb7d4ecc57a346f7daf (diff) | |
| download | lwn-ad406341bdd7d22ba9497931c2df5dde6bb9440e.tar.gz lwn-ad406341bdd7d22ba9497931c2df5dde6bb9440e.zip | |
serial: lantiq: Make driver modular
Add changes so Lantiq serial driver can be compiled as a module.
Signed-off-by: Rahul Tanwar <rahul.tanwar@linux.intel.com>
Link: https://lore.kernel.org/r/ad9422de006c317401bfa5fe61bdd4293dd29b5e.1589176044.git.rahul.tanwar@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial')
| -rw-r--r-- | drivers/tty/serial/Kconfig | 4 | ||||
| -rw-r--r-- | drivers/tty/serial/lantiq.c | 29 |
2 files changed, 28 insertions, 5 deletions
diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig index a81b42b1d534..1cb99d9f983e 100644 --- a/drivers/tty/serial/Kconfig +++ b/drivers/tty/serial/Kconfig @@ -1034,11 +1034,13 @@ config SERIAL_SIFIVE_CONSOLE boot time.) config SERIAL_LANTIQ - bool "Lantiq serial driver" + tristate "Lantiq serial driver" depends on (LANTIQ || X86) || COMPILE_TEST select SERIAL_CORE help 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 bool "Console on Lantiq UART" diff --git a/drivers/tty/serial/lantiq.c b/drivers/tty/serial/lantiq.c index d3b62a1be6ad..62813e421f12 100644 --- a/drivers/tty/serial/lantiq.c +++ b/drivers/tty/serial/lantiq.c @@ -15,6 +15,7 @@ #include <linux/io.h> #include <linux/ioport.h> #include <linux/lantiq.h> +#include <linux/module.h> #include <linux/of_address.h> #include <linux/of_irq.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); } -static int __init -lqasc_probe(struct platform_device *pdev) +static int lqasc_probe(struct platform_device *pdev) { struct device_node *node = pdev->dev.of_node; struct ltq_uart_port *ltq_port; @@ -908,6 +908,13 @@ lqasc_probe(struct platform_device *pdev) 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 = { .fetch_irq = fetch_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 }, {}, }; +MODULE_DEVICE_TABLE(of, ltq_asc_match); static struct platform_driver lqasc_driver = { + .probe = lqasc_probe, + .remove = lqasc_remove, .driver = { .name = DRVNAME, .of_match_table = ltq_asc_match, @@ -942,10 +952,21 @@ init_lqasc(void) if (ret != 0) return ret; - ret = platform_driver_probe(&lqasc_driver, lqasc_probe); + ret = platform_driver_register(&lqasc_driver); if (ret != 0) uart_unregister_driver(&lqasc_reg); 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"); |