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| author | Govindraj.R <govindraj.raja@ti.com> | 2011-09-13 14:01:01 +0530 |
|---|---|---|
| committer | Kevin Hilman <khilman@ti.com> | 2011-12-14 15:49:02 -0800 |
| commit | 273558b3a0399e368d99da5b3daf1c0e11b93e06 (patch) | |
| tree | 449dfc24f02cae12bff15011bb9a41ae9b47a1c4 /arch/arm/plat-omap | |
| parent | 8a60585159067f110075ef8ffda13abd94826daf (diff) | |
| download | blackbird-op-linux-273558b3a0399e368d99da5b3daf1c0e11b93e06.tar.gz blackbird-op-linux-273558b3a0399e368d99da5b3daf1c0e11b93e06.zip | |
ARM: OMAP2+: UART: Cleanup part of clock gating mechanism for uart
Currently we use a shared irq handler to identify uart activity and then
trigger a timer. By default the timeout value is zero and can be set or
modified from sysfs. If there was no uart activity for the period set
through sysfs, the timer will expire and call timer handler this will
set a flag can_sleep using which decision to gate uart clocks can be taken.
Since the clock gating mechanism is outside the uart driver, we currently
use this mechanism. In preparation to runtime implementation for omap-serial
driver we can cleanup this mechanism and use runtime API's to gate uart clocks.
Removes the following:
* timer related info from local uart_state struct
* the code used to set timeout value from sysfs.
* irqflags used to set shared irq handler.
* un-used function omap_uart_check_wakeup.
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 | 1 | ||||
| -rw-r--r-- | arch/arm/plat-omap/include/plat/serial.h | 1 |
2 files changed, 0 insertions, 2 deletions
diff --git a/arch/arm/plat-omap/include/plat/omap-serial.h b/arch/arm/plat-omap/include/plat/omap-serial.h index 2682043f5a5b..307cd6f15822 100644 --- a/arch/arm/plat-omap/include/plat/omap-serial.h +++ b/arch/arm/plat-omap/include/plat/omap-serial.h @@ -61,7 +61,6 @@ struct omap_uart_port_info { unsigned int uartclk; /* UART clock rate */ void __iomem *membase; /* ioremap cookie or NULL */ resource_size_t mapbase; /* resource base */ - unsigned long irqflags; /* request_irq flags */ upf_t flags; /* UPF_* flags */ }; diff --git a/arch/arm/plat-omap/include/plat/serial.h b/arch/arm/plat-omap/include/plat/serial.h index 73d990780da3..152500b558a2 100644 --- a/arch/arm/plat-omap/include/plat/serial.h +++ b/arch/arm/plat-omap/include/plat/serial.h @@ -110,7 +110,6 @@ struct omap_board_data; extern void omap_serial_init(void); extern void omap_serial_init_port(struct omap_board_data *bdata); extern int omap_uart_can_sleep(void); -extern void omap_uart_check_wakeup(void); #endif #endif |
