drm/i915: don't read cursor registers on powered down pipes

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At i915_display_info, don't call cursor_position() for a disabled
CRTC, since the CRTC may be on a powered down pipe, and this will
cause "Unclaimed register before interrupt" error messages.

Testcase: igt/pm_pc8/debugfs-read
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

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Paulo Zanoni 2014-04-01 14:55:11 -03:00 • committed by Daniel Vetter

parent b0e5ddf323

commit a23dc6584f

1 changed files with 7 additions and 6 deletions

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drivers/gpu/drm/i915/i915_debugfs.c

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