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serial: pch_uart: revert Kconfig for non-DMA mode 

PCH_DMA is not always enabled when a user uses PCH_UART.
Since overhead of DMA is not small, in case of low frequent
communication, without DMA is better.
Thus, "select PCH_DMA" and DMADEVICES are unnecessary

Signed-off-by: Tomoya MORINAGA <tomoya-linux@dsn.okisemi.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Tomoya MORINAGA 2011-01-28 18:00:02 +09:00 committed by Greg Kroah-Hartman
parent 4564e1ef21
commit 380042f2db
1 changed files with 2 additions and 3 deletions
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5
drivers/tty/serial/Kconfig
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@ -1588,10 +1588,9 @@ config SERIAL_IFX6X60
Support for the IFX6x60 modem devices on Intel MID platforms.
config SERIAL_PCH_UART
tristate "Intel EG20T PCH UART"
depends on PCI && DMADEVICES
tristate "Intel EG20T PCH UART/OKI SEMICONDUCTOR ML7213 IOH"
depends on PCI
select SERIAL_CORE
select PCH_DMA
help
This driver is for PCH(Platform controller Hub) UART of Intel EG20T
which is an IOH(Input/Output Hub) for x86 embedded processor.