Doug / smarc-fsl-linux-kernel

01 Nov, 2012

1 commit

  • 31fe99048   serial:ifx6x60:Prevent data transfer when IFX6x60 port is shutdown ... Browse Code »

    This patch is to implement following 2 places to avoid potential error when IFX6x60 port shutdown:
    1) Clear Flag IFX_SPI_STATE_IO_AVAILABLE to disable data transfer when Modem port is shutdown;
    2) Clear Flag IFX_SPI_STATE_IO_IN_PROGRESS and IFX_SPI_STATE_IO_READY when reopen port.
    This is because last port shutdown may happen when SPI/DMA transfer is in progress, if the last
    data transfer is not completed(for example due to modem reset), the Flag IFX_SPI_STATE_IO_IN_PROGRESS
    will be set forever, so when IFX port is activated again, IFX_SPI_STATE_IO_IN_PROGRESS will prevent
    transferring data forever. And if don't clear IFX_SPI_STATE_IO_READY, it may cause one more SPI frame
    transferring in spit there is not data need to be transfer.

    cc: liu chuansheng
    cc: Chen Jun
    Signed-off-by: channing
    Signed-off-by: Greg Kroah-Hartman

    chao bi
     

26 Oct, 2012

1 commit

  • 319fb0d21   serial: ifx6x60: different SPI word width configure requires different swap process ... Browse Code »

    SPI protocol driver only provide one function (swap_buf()) to swap SPI
    data into big endian format, which is only available when SPI
    controller's word width is 16 bits. But word width could be configured
    as 8/16/32 bits, different word width configure should be mapped to
    different swap methods.This patch is to make SPI protocol driver choose
    the right swap function corresponding to SPI word width configuration.

    cc: liu chuansheng
    cc: Chen Jun
    Signed-off-by: channing
    Signed-off-by: Greg Kroah-Hartman

    chao bi
     

18 Feb, 2011

1 commit

04 Feb, 2011

1 commit

  • 2f1522ecc   serial: ifx6x60: expanded info available from platform data ... Browse Code »

    Some platform attributes (e.g. max_hz, use_dma) were being intuited
    from the modem type. These things should be specified by the platform
    data.

    Added max_hz, use_dma to ifx_modem_platform_data definition,
    replaced is_6160 w/ modem_type, and changed clients accordingly

    Signed-off-by: Russ Gorby
    Signed-off-by: Greg Kroah-Hartman

    Russ Gorby
     

14 Jan, 2011

1 commit

  • ab4382d27   tty: move drivers/serial/ to drivers/tty/serial/ ... Browse Code »

    The serial drivers are really just tty drivers, so move them to
    drivers/tty/ to make things a bit neater overall.

    This is part of the tty/serial driver movement proceedure as proposed by
    Arnd Bergmann and approved by everyone involved a number of months ago.

    Cc: Arnd Bergmann
    Cc: Alan Cox
    Cc: Geert Uytterhoeven
    Cc: Rogier Wolff
    Cc: Michael H. Warfield
    Signed-off-by: Greg Kroah-Hartman

    Greg Kroah-Hartman