[igt-dev] [PATCH i-g-t v2 2/3] igt/kms_fronbuffer_tracking: Handle ENODEV when checking i915_edp_psr_status for chipset support

[Chris Wilson]

Quoting Marta Lofstedt (2018-02-22 08:00:11)
> If the machine doesn't support PSR, it will return -ENODEV from
> i915_edp_psr_status, which we want to interpret as unsupported.
> This is in line with what Chris just fixed for FBC.
> 
> V2: Copy-pasted to the correct place
> 
> Signed-off-by: Marta Lofstedt <marta.lofstedt at intel.com>
Reviewed-by: Chris Wilson <chris at chris-wilson.co.uk>
-Chris