On Sat, Mar 12, 2016 at 02:19:49PM +0100, Stefan Sperling wrote: > I now prefer this diff. I can make additional code cleanups in this driver > in separate commits. But this is enough to fix the problem and matches what > FreeBSD (dev/ichsmb) and Linux (drivers/i2c/busses/i2c-i801.c) do with > regard to SMBALERT# -- just ignore it.
I'll add that a bios update fixes the problem, too. (Thanks to RD Thrush for the hint!) ADI BIOS releases (with coreboot sources) are here: https://github.com/ADIEngineering/adi_coreboot_public/tree/master/releases Version ADI_RCCVE-01.00.00.03 has the bug. Version ADI_RCCVE-01.00.00.08 does not have the bug. With version .08, the interrupts become: ichiic0: intr st 0x42<INTR,INUSE> instead of: ichiic0: intr st 0x62<INTR,SMBAL,INUSE> I still think we should work around the problem, if possible. I still have a board with a buggy bios to test with (and could always reflash older versions, I presume).
