diff options
| author | Leo Chen | 2009-07-28 23:43:33 +0100 |
|---|---|---|
| committer | Russell King | 2009-09-02 11:21:15 +0100 |
| commit | b736b89f8a001cb73f020ca90a6fac77861cddf6 (patch) | |
| tree | 212a779a79d6a55f21a5c159fb3c90950bb06556 /drivers/serial | |
| parent | 8afe0b96b36bb967a00658003736ffa97967ee80 (diff) | |
ARM: 5626/1: add suspend/resume functions to amba-pl011 serial driver
Add suspend/resume functions to the AMBA pl011 serial driver.
Signed-off-by: Leo Chen <leochen@broadcom.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'drivers/serial')
| -rw-r--r-- | drivers/serial/amba-pl011.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/serial/amba-pl011.c b/drivers/serial/amba-pl011.c index bf82e28770a9..72ba0c6d3551 100644 --- a/drivers/serial/amba-pl011.c +++ b/drivers/serial/amba-pl011.c @@ -826,6 +826,28 @@ static int pl011_remove(struct amba_device *dev) return 0; } +#ifdef CONFIG_PM +static int pl011_suspend(struct amba_device *dev, pm_message_t state) +{ + struct uart_amba_port *uap = amba_get_drvdata(dev); + + if (!uap) + return -EINVAL; + + return uart_suspend_port(&amba_reg, &uap->port); +} + +static int pl011_resume(struct amba_device *dev) +{ + struct uart_amba_port *uap = amba_get_drvdata(dev); + + if (!uap) + return -EINVAL; + + return uart_resume_port(&amba_reg, &uap->port); +} +#endif + static struct amba_id pl011_ids[] __initdata = { { .id = 0x00041011, @@ -847,6 +869,10 @@ static struct amba_driver pl011_driver = { .id_table = pl011_ids, .probe = pl011_probe, .remove = pl011_remove, +#ifdef CONFIG_PM + .suspend = pl011_suspend, + .resume = pl011_resume, +#endif }; static int __init pl011_init(void) |