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    SubjectRe: [PATCH 4/5] Blackfin SPI Driver: Add GPIO controlled SPI Slave Select support
    On Thu,  5 Feb 2009 18:07:32 +0800
    Bryan Wu <cooloney@kernel.org> wrote:

    >
    > This patch adds support for GPIO controlled SPI Chip Selects.
    > To make use of this feature, set chip_select = 0 and add a proper
    > cs_gpio to your controller_data.
    >
    > struct spi_board_info
    > .chip_select = 0
    >
    > struct bfin5xx_spi_chip
    > .cs_gpio = GPIO_P###
    >
    > There are various SPI devices that require SPI MODE_0,
    > and need to have the Chip Selects asserted during the entire transfer.
    > Consider using SPI_MODE_3 (SPI_CPHA | SPI_CPOL) if your device allows
    > it.

    Cannot apply this due to previously-mentioned driver-core-tramplings.


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