Re: Overhaul of I2C and SPI device autoconfiguration

[Tobias Nygren <tnn%NetBSD.org@localhost>]

On Sat, 11 Sep 2021 15:43:24 -0700
Jason Thorpe <thorpej%me.com@localhost> wrote:

> -- evbarm (ACPI), specifically a system with an I2C MUX (I think jmcneill@ has such a beast).

I have one but it is already in a not happy state even before
thorpej-i2c-spi-conf2 so won't bother testing it:

nxpiic0 at acpi0 (I2C0, NXP0001-0): mem 0x2000000-0x200ffff irq 66
iic0 at nxpiic0: I2C bus
pcaiicmux0 at iic0 addr 0x77: PCA954x I2C mux
pcaiicmux0: autoconfiguration error: failed to set mux to disconnected state

> -- sparc64 -- I don't think Qemu can emulate any of the I2C controllers that system has.  > > > -- SPI devices -- tnn@?

Will leave the code review to someone with more autoconf(9)
experience but I am building kernels to test these drivers today:

* sparc64: pcfiic, spdmem
* aarch64: rkspi, m25p, ssdfb 

Will report back later.

-Tobias