Messages in this thread | | | Date | Fri, 4 Aug 2017 13:29:29 +0300 | From | Mika Westerberg <> | Subject | Re: [PATCH RFC 2/2] spi: pxa2xx: Only claim CS GPIOs when the slave device is created |
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On Thu, Aug 03, 2017 at 01:40:33PM +0200, Jan Kiszka wrote: > From: Jan Kiszka <jan.kiszka@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@siemens.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
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