On 18/11/2022 16:44, Mark Brown wrote:
The problem arrives when your controller does support 16-bits, so
your data is not swapped, but you still put the data on the bus
with 8-bit transfers.
Why would you need to use 8 bit transfers if the controller supports
16 bits?
No idea why this driver is forcing 8-bit transfers when the controller
supports 16-bits (this is what this patch is fixing).
My theory is that this driver was written with the Raspberry Pi HATs in
mind and (AFAICT) the RPi has an 8-bit only SPI controller so the driver
author didn't bother with anything different.
--
Carlo Caione
