tty: serial: 8250_dw: Implement suspend/resume (b61c5ed5) · Commits · 戴 / test

drivers/tty/serial/8250/8250_dw.c

+25 −0

Original line number	Diff line number	Diff line
		@@ -161,6 +161,29 @@ static int __devexit dw8250_remove(struct platform_device *pdev)
		return 0;
		}

		#ifdef CONFIG_PM
		static int dw8250_suspend(struct platform_device *pdev, pm_message_t state)
		{
		struct dw8250_data *data = platform_get_drvdata(pdev);

		serial8250_suspend_port(data->line);

		return 0;
		}

		static int dw8250_resume(struct platform_device *pdev)
		{
		struct dw8250_data *data = platform_get_drvdata(pdev);

		serial8250_resume_port(data->line);

		return 0;
		}
		#else
		#define dw8250_suspend NULL
		#define dw8250_resume NULL
		#endif /* CONFIG_PM */

		static const struct of_device_id dw8250_match[] = {
		{ .compatible = "snps,dw-apb-uart" },
		{ /* Sentinel */ }
		@@ -175,6 +198,8 @@ static struct platform_driver dw8250_platform_driver = {
		},
		.probe = dw8250_probe,
		.remove = __devexit_p(dw8250_remove),
		.suspend = dw8250_suspend,
		.resume = dw8250_resume,
		};

		module_platform_driver(dw8250_platform_driver);