drm/nouveau/disp/nv04-nv40: abort scanoutpos query on vga analog.

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commit e291af3f22 upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Mario Kleiner 2014-05-28 05:22:18 +02:00 • committed by Greg Kroah-Hartman

parent 45780fdb97

commit cdde6db25a

1 changed files with 8 additions and 0 deletions

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drivers/gpu/drm/nouveau/core/engine/disp/nv04.c

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