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authorGovindraj.R <govindraj.raja@ti.com>2011-09-13 14:01:01 +0530
committerKevin Hilman <khilman@ti.com>2011-12-14 15:49:02 -0800
commit273558b3a0399e368d99da5b3daf1c0e11b93e06 (patch)
tree449dfc24f02cae12bff15011bb9a41ae9b47a1c4 /drivers/tty
parent8a60585159067f110075ef8ffda13abd94826daf (diff)
downloadop-kernel-dev-273558b3a0399e368d99da5b3daf1c0e11b93e06.zip
op-kernel-dev-273558b3a0399e368d99da5b3daf1c0e11b93e06.tar.gz
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 'drivers/tty')
-rw-r--r--drivers/tty/serial/omap-serial.c1
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c
index 5e713d3..be368cf7 100644
--- a/drivers/tty/serial/omap-serial.c
+++ b/drivers/tty/serial/omap-serial.c
@@ -1278,7 +1278,6 @@ static int serial_omap_probe(struct platform_device *pdev)
up->port.membase = omap_up_info->membase;
up->port.mapbase = omap_up_info->mapbase;
up->port.flags = omap_up_info->flags;
- up->port.irqflags = omap_up_info->irqflags;
up->port.uartclk = omap_up_info->uartclk;
up->uart_dma.uart_base = mem->start;
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