drm/nouveau/disp/nv04-nv40: abort scanoutpos query on vga analog.
nv04_disp_scanoutpos() must abort to trigger simple timestamping fallback if vtotal/htotal regs return zero. This happens if the output isn't a digital output, but a vga analog output, as the regs don't get initialized in that case. Fixes timestamping failure on nv-40 and earlier with vga output. Signed-off-by:Mario Kleiner <mario.kleiner.de@gmail.com> Signed-off-by:
Ben Skeggs <bskeggs@redhat.com> Cc: <stable@vger.kernel.org> # 3.14+
parent
56d237d2
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