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drm/i915: don't chnage the original mode in dp_mode_fixup

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We should only frob adjusted_mode. This is in preparation of
a massive patch by Laurent Pinchart to make the mode argument
const.

After the previous two prep patches the only thing left is to clean up
things a bit. I've opted to pass in an adjust_mode param to
dp_adjust_dithering because that way we can be sure to avoid
duplicating this logic between mode_valid and mode_fixup - which was
the cause behind a dp link bw calculation bug in the past.

Also mark the mode argument of pch_panel_fitting const.

v2: Split up the mode->clock => adjusted_mode->clock change,
as suggested by Chris Wilson.

Reported-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Daniel Vetter
2012-06-04 18:39:21 +02:00
parent 71244653a8
commit cb1793ce92
3 changed files with 8 additions and 8 deletions
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2
drivers/gpu/drm/i915/intel_panel.c
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@@ -56,7 +56,7 @@ intel_fixed_panel_mode(struct drm_display_mode *fixed_mode,
void
intel_pch_panel_fitting(struct drm_device *dev,
int fitting_mode,
struct drm_display_mode *mode,
const struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode)
{
struct drm_i915_private *dev_priv = dev->dev_private;