[PATCH RFC 2/2] spi: pxa2xx: Only claim CS GPIOs when the slave device is created

[Mika Westerberg]

On Thu, Aug 03, 2017 at 01:40:33PM +0200, Jan Kiszka wrote:
> From: Jan Kiszka <jan.kiszka at siemens.com>
> 
> Avoid hogging chip select GPIOs just because they are listed for the
> master. They might be mulitplexed and, if no slave device is attached,
> used for different purposes. Moreover, this strategy avoids having to
> allocate a cs_gpiods structure.
> 
> Tested on the IOT2000 where the second SPI bus is connected to an
> Arduino-compatible connector and multiplexed between SPI, GPIO and PWM
> usage.
> 
> Signed-off-by: Jan Kiszka <jan.kiszka at siemens.com>

Acked-by: Mika Westerberg <mika.westerberg at linux.intel.com>