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| author | James Hogan <james.hogan@imgtec.com> | 2012-10-15 09:25:58 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-10-24 18:34:51 (GMT) |
| commit | b61c5ed57195ec97006d8d3ede1f583f6618b79e (patch) | |
| tree | e532940e3c25aa6221adde0258baeb1604deb692 /drivers/tty/serial/8250 | |
| parent | 59c2e855e43735f4ab93b8b8db96206219f6c1d4 (diff) | |
| download | linux-b61c5ed57195ec97006d8d3ede1f583f6618b79e.tar.xz | |
tty: serial: 8250_dw: Implement suspend/resume
Implement suspend and resume callbacks for DesignWare 8250 driver.
They're simple wrappers around serial8250_{suspend,resume}_port.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/8250')
| -rw-r--r-- | drivers/tty/serial/8250/8250_dw.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/tty/serial/8250/8250_dw.c b/drivers/tty/serial/8250/8250_dw.c index c3b2ec0..b19b8c5 100644 --- a/drivers/tty/serial/8250/8250_dw.c +++ b/drivers/tty/serial/8250/8250_dw.c @@ -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); |