From 03c5b25f6efd8190dab133eeecf1c0dae307dea8 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Ville=20Syrj=C3=A4l=C3=A4?= <ville.syrjala@linux.intel.com>
Date: Tue, 1 Oct 2013 18:02:11 +0300
Subject: [PATCH] drm/i915: Allow sprites to be configured on a disabled pipe
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We allow cursors to be set up when the pipe is disabled. Do the same for
sprites as well.

We need to be somewhat careful with the primary disable logic as we
don't want to accidentally enable the primary plane on a disabled pipe.

v2: Skip primary enable/disable and plane registers
    writes on disabled pipe

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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