[meta-xilinx] [meta-xilinx-bsp][RFC] kernel-module-mali: Fix errors associated with kernel upgrade to 4.19

[Jean-Francois Dagenais]

Hi, so I did a bit of testing...

> On Apr 5, 2019, at 11:42, Jean-Francois Dagenais <jeff.dagenais at gmail.com> wrote:
> 
>> It is trying to reset the PP, and fails. Can you check if the power islands are turned on. 
>> 
>> Can you tell me the output of the following:
>> Devmem 0xFD4B006C
>> Devmem 0xFD4B4004

# devmem2 0xFD4B006C
/dev/mem opened.
Memory mapped at address 0x7f9f5c6000.
Read at address  0xFD4B006C (0x7f9f5c606c): 0x0B070101
# devmem2 0xFD4B4004
/dev/mem opened.
Memory mapped at address 0x7fb7cc2000.
Bus error


I am looking at how to introspect the power island status... Is this a good place to start? https://xilinx-wiki.atlassian.net/wiki/spaces/A/pages/18842232/Zynq+UltraScale+MPSoC+Power+Management+-+Linux+Kernel