From 62f3ec5fbd5fddce62b7a71adc04723a5eb903da Mon Sep 17 00:00:00 2001 From: "Govindraj.R" Date: Thu, 13 Oct 2011 14:11:09 +0530 Subject: ARM: OMAP2+: UART: Add wakeup mechanism for omap-uarts From the runtime callbacks enable hwmod wakeups for uart which will internally enable io-pad wakeups for uarts if they have rx-pad pins set as wakeup capabale. Use the io-ring wakeup mechanism after uart clock gating and leave the PM_WKST set for uart to default reset values cleanup the code in serial.c which was handling PM_WKST reg. Irq_chaing(PRM_DRIVER) is used to wakeup uart after uart clocks are gated using pad wakeup mechanism. Signed-off-by: Govindraj.R Acked-by: Greg Kroah-Hartman (for drivers/tty changes) Signed-off-by: Kevin Hilman --- arch/arm/plat-omap/include/plat/omap-serial.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'arch/arm/plat-omap/include/plat/omap-serial.h') diff --git a/arch/arm/plat-omap/include/plat/omap-serial.h b/arch/arm/plat-omap/include/plat/omap-serial.h index 842b429cfeaa..39709ecfd58f 100644 --- a/arch/arm/plat-omap/include/plat/omap-serial.h +++ b/arch/arm/plat-omap/include/plat/omap-serial.h @@ -70,6 +70,7 @@ struct omap_uart_port_info { int (*get_context_loss_count)(struct device *); void (*set_forceidle)(struct platform_device *); void (*set_noidle)(struct platform_device *); + void (*enable_wakeup)(struct platform_device *, bool); }; struct uart_omap_dma { @@ -124,6 +125,7 @@ struct uart_omap_port { unsigned long port_activity; u32 context_loss_cnt; u32 errata; + u8 wakeups_enabled; }; #endif /* __OMAP_SERIAL_H__ */ -- cgit v1.2.1