The Kandou KB9002 is an 8-lane PCIe 5.0 retimer that exposes an SMBus
target with mandatory PEC. Add a hwmon driver reporting the firmware
aggregated maximum die temperature as temp1_input, with the firmware
version and boot status under debugfs.
Signed-off-by: Andy Chung <Andy.Chung@amd.com>
Link: https://lore.kernel.org/r/20260724-kb9002-upstream-v5-3-9523c3ffe83a@amd.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>