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drm/i915: Set the LVDS_BORDER when using LVDS scaling mode

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According to the spec the LVDS_BORDER_ENABLE bit decides whether the border
data should be included in the active display and data sent to the panel.
Border should be used when in VGA centered (un-scaled) mode or when scaling
a 4:3 source image to a wide screen panel (typical 16:9).

So when the LVDS scaling is used, decide whether the LVDS_BORDER should be
enabled or not according to the current scaling mode.

At the same time fix the typo error in LVDS center scaling mode.

https://bugs.freedesktop.org/show_bug.cgi?id=23789

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
tested-by: Zhao Jian <jian.zhao@intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
This commit is contained in:
Zhao Yakui
2009-10-10 10:42:37 +08:00
committed by Eric Anholt
parent 9216d44dc1
commit a3e17eb8f4
4 changed files with 15 additions and 1 deletions
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2
drivers/gpu/drm/i915/i915_drv.h
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@@ -492,6 +492,8 @@ typedef struct drm_i915_private {
struct drm_i915_gem_phys_object *phys_objs[I915_MAX_PHYS_OBJECT];
} mm;
struct sdvo_device_mapping sdvo_mappings[2];
/* indicate whether the LVDS_BORDER should be enabled or not */
unsigned int lvds_border_bits;
/* Reclocking support */
bool render_reclock_avail;