drm: Return -ENOTSUPP when called for KMS cap with a non-KMS driver
This is an attempt to make the previous fix a bit more robust going forward. v2: * Only allow DRM_CAP_TIMESTAMP_MONOTONIC with UMS drivers (Daniel Vetter, Alex Deucher) * Different logic to keep DRM_CAP_TIMESTAMP_MONOTONIC separate from the other caps (Daniel Vetter) Signed-off-by:Michel Dänzer <michel.daenzer@amd.com> Reviewed-by:
Alex Deucher <alexander.deucher@amd.com> Signed-off-by:
Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20161201073731.5716-1-michel@daenzer.net
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