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authorAlan Cox <alan@linux.intel.com>2011-07-11 19:41:09 +0100
committerGreg Kroah-Hartman <gregkh@suse.de>2011-07-15 19:05:00 +0200
commit78010c75d290d8061fbbd75625101f382c44f204 (patch)
tree08369fef2a1edd288b871fae98b73cb41ffe60be
parentf00dfacb5123f2c439973347bf9ec7ebf3af8719 (diff)
downloadblackbird-op-linux-78010c75d290d8061fbbd75625101f382c44f204.tar.gz
blackbird-op-linux-78010c75d290d8061fbbd75625101f382c44f204.zip
gma500: Sort out dither
Ubuntu users reported that dithering was not being set on Poulsbo, and they have a point as we set one variable and check another which is never set. Signed-off-by: Alan Cox <alan@linux.intel.com> Tested-by: Luca Forina <luca.forina@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
-rw-r--r--drivers/staging/gma500/cdv_intel_lvds.c3
-rw-r--r--drivers/staging/gma500/mrst_lvds.c5
-rw-r--r--drivers/staging/gma500/psb_intel_lvds.c3
3 files changed, 8 insertions, 3 deletions
diff --git a/drivers/staging/gma500/cdv_intel_lvds.c b/drivers/staging/gma500/cdv_intel_lvds.c
index 19ad9bb8ffe0..d9478d565ff5 100644
--- a/drivers/staging/gma500/cdv_intel_lvds.c
+++ b/drivers/staging/gma500/cdv_intel_lvds.c
@@ -356,6 +356,7 @@ static void cdv_intel_lvds_mode_set(struct drm_encoder *encoder,
struct psb_intel_mode_device *mode_dev =
enc_to_psb_intel_output(encoder)->mode_dev;
struct drm_device *dev = encoder->dev;
+ struct drm_psb_private *dev_priv = dev->dev_private;
u32 pfit_control;
/*
@@ -377,7 +378,7 @@ static void cdv_intel_lvds_mode_set(struct drm_encoder *encoder,
else
pfit_control = 0;
- if (mode_dev->panel_wants_dither)
+ if (dev_priv->lvds_dither)
pfit_control |= PANEL_8TO6_DITHER_ENABLE;
REG_WRITE(PFIT_CONTROL, pfit_control);
diff --git a/drivers/staging/gma500/mrst_lvds.c b/drivers/staging/gma500/mrst_lvds.c
index 127b2003edaf..3e15ecd4bd2c 100644
--- a/drivers/staging/gma500/mrst_lvds.c
+++ b/drivers/staging/gma500/mrst_lvds.c
@@ -91,6 +91,7 @@ static void mrst_lvds_mode_set(struct drm_encoder *encoder,
struct psb_intel_mode_device *mode_dev =
enc_to_psb_intel_output(encoder)->mode_dev;
struct drm_device *dev = encoder->dev;
+ struct drm_psb_private *dev_priv = dev->dev_private;
u32 lvds_port;
uint64_t v = DRM_MODE_SCALE_FULLSCREEN;
@@ -107,7 +108,9 @@ static void mrst_lvds_mode_set(struct drm_encoder *encoder,
LVDS_PORT_EN |
LVDS_BORDER_EN;
- if (mode_dev->panel_wants_dither)
+ /* If the firmware says dither on Moorestown, or the BIOS does
+ on Oaktrail then enable dithering */
+ if (mode_dev->panel_wants_dither || dev_priv->lvds_dither)
lvds_port |= MRST_PANEL_8TO6_DITHER_ENABLE;
REG_WRITE(LVDS, lvds_port);
diff --git a/drivers/staging/gma500/psb_intel_lvds.c b/drivers/staging/gma500/psb_intel_lvds.c
index c4111b594fb8..03132a4e7dfd 100644
--- a/drivers/staging/gma500/psb_intel_lvds.c
+++ b/drivers/staging/gma500/psb_intel_lvds.c
@@ -470,6 +470,7 @@ static void psb_intel_lvds_mode_set(struct drm_encoder *encoder,
struct psb_intel_mode_device *mode_dev =
enc_to_psb_intel_output(encoder)->mode_dev;
struct drm_device *dev = encoder->dev;
+ struct drm_psb_private *dev_priv = dev->dev_private;
u32 pfit_control;
/*
@@ -491,7 +492,7 @@ static void psb_intel_lvds_mode_set(struct drm_encoder *encoder,
else
pfit_control = 0;
- if (mode_dev->panel_wants_dither)
+ if (dev_priv->lvds_dither)
pfit_control |= PANEL_8TO6_DITHER_ENABLE;
REG_WRITE(PFIT_CONTROL, pfit_control);
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