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| author | Govindraj.R <govindraj.raja@ti.com> | 2011-10-13 08:41:09 (GMT) |
|---|---|---|
| committer | Kevin Hilman <khilman@ti.com> | 2011-12-15 00:05:23 (GMT) |
| commit | 62f3ec5fbd5fddce62b7a71adc04723a5eb903da (patch) | |
| tree | 682d86d38cf888bd10622479d779e862ebcee6d3 /arch/arm/plat-omap | |
| parent | 94734749af794c080f6af6ac3ce8c1c13ee2dbbd (diff) | |
| download | linux-62f3ec5fbd5fddce62b7a71adc04723a5eb903da.tar.xz | |
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 <govindraj.raja@ti.com>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de> (for drivers/tty changes)
Signed-off-by: Kevin Hilman <khilman@ti.com>
Diffstat (limited to 'arch/arm/plat-omap')
| -rw-r--r-- | arch/arm/plat-omap/include/plat/omap-serial.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm/plat-omap/include/plat/omap-serial.h b/arch/arm/plat-omap/include/plat/omap-serial.h index 842b429..39709ec 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__ */ |