jhb
93e78d3449
MFC 292409: ...
It seems certain Intel GPUs use GPIO bitbanging over a child device
instead of GMBUS access for I2C transfers. The GMBUS driver falls back
to this mode when a transfer times out. However, the first transfer to
timeout was sending the request back to itself resulting in an panic due
to recursing on a lock. Fix it to forward the request on to the proper
device. This appears to have been accidentally changed in r277487.
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