[Patch v2 1/3] spi: qup: Remove chip select function
broonie at kernel.org
Sun Jun 22 03:47:08 PDT 2014
On Sat, Jun 21, 2014 at 01:56:46PM -0500, Andy Gross wrote:
> On Sat, Jun 21, 2014 at 11:13:03AM +0100, Mark Brown wrote:
> > On Thu, Jun 12, 2014 at 02:34:10PM -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.
> > Why?
> The chip select control inside the controller is buggy. It is supposed to
> automatically assert the chip select based on the activity in the controller,
> but it is buggy and doesn't work at all. So instead we elect to use GPIOs.
OK, though it was in manual mode.
-------------- next part --------------
A non-text attachment was scrubbed...
Size: 819 bytes
Desc: Digital signature
More information about the linux-arm-kernel