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    Subject[PATCH 2/2] pch_uart: revert Kconfig for non-DMA mode
    Date
    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>
    ---
    drivers/serial/Kconfig | 5 ++---
    1 files changed, 2 insertions(+), 3 deletions(-)

    diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig
    index 3d836f0..58847e9 100644
    --- a/drivers/serial/Kconfig
    +++ b/drivers/serial/Kconfig
    @@ -1587,10 +1587,9 @@ 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.
    --
    1.6.2.5


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