drm/i915: disable_shared_pll doesn't work on pre-gen5

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commit eddfcbcdc2
Author: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Date:   Mon Jun 15 12:33:53 2015 +0200
    drm/i915: Update less state during modeset.

introduced the unconditional calling of disable_shared_dpll, but didn't
fix up pre-gen5 to avoid the BUG_ON at the top of the function.

So change the BUG_ON into a gen check (alternately we could move the
BUG_ON until later, since we shouldn't have a pll struct here either,
but this seems clearer to read).

This fixes a crash on load on my x200s platform.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

...

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Jesse Barnes 2015-08-03 13:09:11 -07:00 • committed by Daniel Vetter

parent 245d96670d

commit 80aa931286

1 changed files with 3 additions and 1 deletions

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drivers/gpu/drm/i915/intel_display.c

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