Messages in this thread | | | Date | Fri, 13 Oct 2017 21:01:00 +0200 | From | Wolfram Sang <> | Subject | Re: [PATCH] i2c: piix4: Fix SMBus port selection for AMD Family 17h chips |
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On Sat, Jul 15, 2017 at 04:51:26PM -0700, Guenter Roeck wrote: > AMD Family 17h uses the KERNCZ SMBus controller. While its documentation > is not publicly available, it is documented in the BIOS and Kernel > Developer’s Guide for AMD Family 15h Models 60h-6Fh Processors. > > On this SMBus controller, the port select register is at PMx register > 0x02, bit 4:3 (PMx00 register bit 20:19). > > Without this patch, the 4 SMBus channels on AMD Family 17h chips are > mirrored and report the same chips on all channels. > > Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Applied to for-current, thanks!
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