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drm/i915: mask the video DIP port select

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Should prevent bugs when changing the port.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Paulo Zanoni 2012-05-04 17:18:19 -03:00 committed by Daniel Vetter
parent 1d4f85ac2d
commit 3e6e63952f
2 changed files with 2 additions and 0 deletions
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1
drivers/gpu/drm/i915/i915_reg.h
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@ -1700,6 +1700,7 @@
#define VIDEO_DIP_ENABLE (1 << 31)
#define VIDEO_DIP_PORT_B (1 << 29)
#define VIDEO_DIP_PORT_C (2 << 29)
#define VIDEO_DIP_PORT_MASK (3 << 29)
#define VIDEO_DIP_ENABLE_AVI (1 << 21)
#define VIDEO_DIP_ENABLE_VENDOR (2 << 21)
#define VIDEO_DIP_ENABLE_SPD (8 << 21)

1
drivers/gpu/drm/i915/intel_hdmi.c
View File

@ -125,6 +125,7 @@ static void i9xx_write_infoframe(struct drm_encoder *encoder,
/* XXX first guess at handling video port, is this corrent? */
val &= ~VIDEO_DIP_PORT_MASK;
if (intel_hdmi->sdvox_reg == SDVOB)
val |= VIDEO_DIP_PORT_B;
else if (intel_hdmi->sdvox_reg == SDVOC)