** Changed in: linux (Ubuntu)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1738073
Title:
thunderx2: i2c driver PEC and ACPI clock fixes
Status in linux package in Ubuntu:
Fix Released
Status in linux source package in Artful:
Fix Released
Bug description:
[Impact]
The i2c input frequency is currently hardcoded in the driver. This may not
match the actual frequency used by the platform. Upstream has updated the
driver to pull the frequency from firmware.
[Test Case]
The updated driver will detect the CAV9007 ACPI ID:
ubuntu@starbuck:~$ dmesg | grep xlp9xx-i2c
[ 47.723562] xlp9xx-i2c CAV9007:02: i2c transfer timed out!
^^^^^^^
The old driver will not claim this device.
[Regression Risk]
The changes are restricted to a driver that appears to be only used on MIPS
platforms (which we don't support) and Cavium ThunderX2 systems that we've
specifically tested upon.
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