From b736b89f8a001cb73f020ca90a6fac77861cddf6 Mon Sep 17 00:00:00 2001 From: Leo Chen Date: Tue, 28 Jul 2009 23:43:33 +0100 Subject: 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 Signed-off-by: Russell King --- drivers/serial/amba-pl011.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) (limited to 'drivers') diff --git a/drivers/serial/amba-pl011.c b/drivers/serial/amba-pl011.c index bf82e28..72ba0c6 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) -- cgit v1.1