Hi Mika, hi,
2015-08-26 11:13 GMT+02:00 Charles Keepax ckeepax@opensource.wolfsonmicro.com:
- The chip select needs to be active.
It seems very likely that 1) is already taken care of, so I probalby won't spend too much time worrying about that. It looks like we are getting a valid GPIO for the reset (2) and LDOENA (3), so it feels like those are probably ok. I guess this leaves the SPI config as the next place to investigate, are there other devices on the SPI that you can talk to that might at least verify the SPI is working? Also might be worth trying to look at how the chip selects are done perhaps that is not happening for some reason?
ok, that seems logical . And no I cannot prove or check other devices, I just learned a lot in the past three month about this (driver, spi, gpio, acpi, dsdt etc. ) at all.
cheers chris