Messages in this thread |  | | | Date | Thu, 5 Feb 2009 14:12:55 -0800 | | From | Andrew Morton <> | | Subject | Re: [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.
|  |