[PATCH 1/4] spi: qup: Remove chip select function

Ivan T. Ivanov iivanov at mm-sol.com
Mon May 19 01:07:38 PDT 2014

Hi Andy,

On Tue, 2014-05-13 at 16:34 -0500, Andy Gross wrote:
> This patch removes the chip select function.  Chip select should instead be
> supported using GPIOs, defining the DT entry "cs-gpios", and letting the SPI
> core assert/deassert the chip select as it sees fit.
> Signed-off-by: Andy Gross <agross at codeaurora.org>


> +- num-cs:	total number of chipselects

My understanding is that "num-cs" have to be parsed by
master driver, not by core SPI driver.

> -
> -	/* Disable auto CS toggle and use manual */
> -	iocontol &= ~SPI_IO_C_MX_CS_MODE;

Probably we should keep this?


More information about the linux-arm-kernel mailing list