Hi Petr, > This patch changes w83627hf and w83627ehf drivers to reserve only ports > 0x295-0x296, instead of full 0x290-0x297 range. While some other sensors > chips respond to all addresses in 0x290-0x297 range, Winbond chips respond > to 0x295-0x296 only (this behavior is implied by documentation, and matches > behavior observed on real systems). This is not problem alone, as no > BIOS was found to put something at these unused addresses, and sensors > chip itself provides nothing there as well. > > But in addition to only respond to these two addresses, also BIOS vendors > report in their ACPI-PnP structures that there is some resource at I/O > address 0x295 of length 2. And when later this hwmon driver attempts to > request region with base 0x290/length 8, it fails as one request_region > cannot span more than one device. > > Due to this we have to ask only for region this hardware really occupies, > otherwise driver cannot be loaded on systems with ACPI-PnP enabled. > > Signed-off-by: Petr Vandrovec <vandrove at vc.cvut.cz> OK, looks good, applied to my local tree. I'll push it to Greg KH in a week or so. Thanks. -- Jean Delvare
