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drm/i915/dp: Boost timeout for enabling transcoder to 100ms

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Adam Hill reported that his Arrandale system required a much longer, up
to 200x500us, wait for the panel to initialise or else modesetting would
fail.

References:

  https://bugs.freedesktop.org/show_bug.cgi?id=29141

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reported-and-tested-by: Adam Hill <sidepipeuk@yahoo.co.uk>
This commit is contained in:
Chris Wilson 2010-08-09 17:21:44 +01:00
parent 4e6cfefc72
commit 0ad6ef2c58
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/i915/intel_display.c
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@ -2069,7 +2069,7 @@ static void ironlake_crtc_dpms(struct drm_crtc *crtc, int mode)
I915_WRITE(transconf_reg, temp | TRANS_ENABLE);
I915_READ(transconf_reg);
if (wait_for(I915_READ(transconf_reg) & TRANS_STATE_ENABLE, 10, 0))
if (wait_for(I915_READ(transconf_reg) & TRANS_STATE_ENABLE, 100, 1))
DRM_ERROR("failed to enable transcoder\n");
}