On the machine of Lenovo M715, there is an AMD GPU (1022:15dd rev ca), when it
switchs to amdgpufb, the system will hang randomlly, sometimes it hangs during
boot, reboot or poweroff, sometimes it hangs with longtime standby.
Through bisecting, I found this patch can fix the problem, looks like without
this patch the ATOM BIOS can't be parsed correctlly.
Did the test of "boot, reboot and poweroff" 5 times, worked very well.
Let the system standby over one night, worked very well.
Very low, I tested this patch on at least 6 differnt lenovo machines
and those machines have different AMD GPUs on them, all of them worked
as well as before.
Harry Wentland (1):
drm/amd: Add missing fields in atom_integrated_system_info_v1_11