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Commit 0ad6ef2c authored by Chris Wilson's avatar Chris Wilson
Browse files

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

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: default avatarChris Wilson <chris@chris-wilson.co.uk>
Reported-and-tested-by: default avatarAdam Hill <sidepipeuk@yahoo.co.uk>
parent 4e6cfefc

drivers/gpu/drm/i915/intel_display.c

+1 −1
Original line number Diff line number Diff line
@@ -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");

		}