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| author | Zhao Yakui <yakui.zhao@intel.com> | 2009-10-10 10:42:37 +0800 |
|---|---|---|
| committer | Eric Anholt <eric@anholt.net> | 2009-10-13 10:13:19 -0700 |
| commit | a3e17eb8f4080a79738a938abe718be255247a44 (patch) | |
| tree | 8778fe5730ef478477c300207bfece4ea347e598 /drivers/gpu/drm/i915/intel_display.c | |
| parent | 9216d44dc13b5e858253f06d83ceea25a9b72f4f (diff) | |
| download | lwn-a3e17eb8f4080a79738a938abe718be255247a44.tar.gz lwn-a3e17eb8f4080a79738a938abe718be255247a44.zip | |
drm/i915: Set the LVDS_BORDER when using LVDS scaling mode
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>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_display.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 3c14240cc002..9efe11761be3 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -2936,6 +2936,8 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc, lvds = I915_READ(lvds_reg); lvds |= LVDS_PORT_EN | LVDS_A0A2_CLKA_POWER_UP | LVDS_PIPEB_SELECT; + /* set the corresponsding LVDS_BORDER bit */ + lvds |= dev_priv->lvds_border_bits; /* Set the B0-B3 data pairs corresponding to whether we're going to * set the DPLLs for dual-channel mode or not. */ |