drm/i915: Fix LVDS dither setting

Update bdb_lvds_options structure according to its defination in
2D driver. Then we can parse and set 'lvds_dither' bit correctly
on non-965 chips.

Signed-off-by: Li Peng <peng.li@intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>

diff --git a/drivers/gpu/drm/i915/intel_bios.h b/drivers/gpu/drm/i915/intel_bios.h
index 5ea715a..de621aa 100644 (file)
--- a/drivers/gpu/drm/i915/intel_bios.h
+++ b/drivers/gpu/drm/i915/intel_bios.h
@@ -162,13 +162,13 @@ struct bdb_lvds_options {
        u8 panel_type;
        u8 rsvd1;
        /* LVDS capabilities, stored in a dword */
-       u8 rsvd2:1;
-       u8 lvds_edid:1;
-       u8 pixel_dither:1;
-       u8 pfit_ratio_auto:1;
-       u8 pfit_gfx_mode_enhanced:1;
-       u8 pfit_text_mode_enhanced:1;
        u8 pfit_mode:2;
+       u8 pfit_text_mode_enhanced:1;
+       u8 pfit_gfx_mode_enhanced:1;
+       u8 pfit_ratio_auto:1;
+       u8 pixel_dither:1;
+       u8 lvds_edid:1;
+       u8 rsvd2:1;
        u8 rsvd4;
 } __attribute__((packed));
 

diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c
index 0d211af..6619f26 100644 (file)
--- a/drivers/gpu/drm/i915/intel_lvds.c
+++ b/drivers/gpu/drm/i915/intel_lvds.c
@@ -265,7 +265,7 @@ static void intel_lvds_mode_set(struct drm_encoder *encoder,
                pfit_control = 0;
 
        if (!IS_I965G(dev)) {
-               if (dev_priv->panel_wants_dither)
+               if (dev_priv->panel_wants_dither || dev_priv->lvds_dither)
                        pfit_control |= PANEL_8TO6_DITHER_ENABLE;
        }
        else