Add a driver for laptops with NVIDIA Optimus (hybrid) graphics. The
driver provides ACPI support for dynamically powering on and off the
GPU, and a function for enabling the GPU power in romstage.
Tested on system76/gaze15.
References:
- DG-09845-001: NVIDIA GN20/QN20 Hardware Design Guide
- DG-09954-001: NVIDIA GN20/QN20 Software Design Guide
Change-Id: I2dec7aa2c8db7994f78a7cc1220502676e248465
Signed-off-by: Jeremy Soller <jeremy@system76.com>
Signed-off-by: Tim Crawford <tcrawford@system76.com>
