Comment 22 for bug 1880172

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Ludovic LEMARINEL (ludovic50750) wrote :

I don't know if this is related with this bug, but in my dmesg, I've found some error messages with I2C controler :

[ 0.432347] pci 0000:00:15.0: BAR 0: no space for [mem size 0x00001000 64bit]
[ 0.432348] pci 0000:00:15.0: BAR 0: failed to assign [mem size 0x00001000 64bit]
[ 0.432352] pci 0000:00:15.1: BAR 0: no space for [mem size 0x00001000 64bit]
[ 0.432353] pci 0000:00:15.1: BAR 0: failed to assign [mem size 0x00001000 64bit]
[ 0.432356] pci 0000:00:1f.5: BAR 0: no space for [mem size 0x00001000]
[ 0.432358] pci 0000:00:1f.5: BAR 0: trying firmware assignment [mem 0xfe010000-0xfe010fff]
[ 0.432360] pci 0000:00:1f.5: BAR 0: [mem 0xfe010000-0xfe010fff] conflicts with Reserved [mem 0xfc800000-0xfe7fffff]
[ 0.432361] pci 0000:00:1f.5: BAR 0: failed to assign [mem size 0x00001000]
[ 0.432365] pci 0000:00:1d.0: PCI bridge to [bus 01]
[ 0.432387] pci 0000:00:1d.0: bridge window [mem 0x81100000-0x811fffff]

...

[ 2.375554] intel-lpss: probe of 0000:00:15.0 failed with error -16
[ 2.392134] platform idma64.0: failed to claim resource 0: [mem 0x00000800-0x00000fff]
[ 2.392136] intel-lpss 0000:00:15.1: Failed to add idma64, fallback to PIO

According to lspci, those 2 devices addresses (00:15:0 and 15:1) are i2c controlers :
00:15.0 Serial bus controller [0c80]: Intel Corporation Ice Lake-LP Serial IO I2C Controller #0 (rev 30)
00:15.1 Serial bus controller [0c80]: Intel Corporation Ice Lake-LP Serial IO I2C Controller #1 (rev 30)