[Intel-gfx] [PATCH 2/2] drm/i915/ibx: check port in infoframe_enabled

Jesse Barnes jbarnes at virtuousgeek.org
Thu Nov 20 22:24:14 CET 2014


Just like on g4x we need to check the port enable bit here.

Signed-off-by: Jesse Barnes <jbarnes at virtuousgeek.org>
---
 drivers/gpu/drm/i915/intel_hdmi.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
index ec87333..cc48b51 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -222,10 +222,15 @@ static bool ibx_infoframe_enabled(struct drm_encoder *encoder)
 	struct drm_device *dev = encoder->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_crtc *intel_crtc = to_intel_crtc(encoder->crtc);
+	struct intel_digital_port *intel_dig_port = enc_to_dig_port(encoder);
 	int reg = TVIDEO_DIP_CTL(intel_crtc->pipe);
 	u32 val = I915_READ(reg);
+	u32 port = VIDEO_DIP_PORT(intel_dig_port->port);
 
-	return val & VIDEO_DIP_ENABLE;
+	if (port == (val & VIDEO_DIP_PORT_MASK))
+		return val & VIDEO_DIP_ENABLE;
+
+	return false;
 }
 
 static void cpt_write_infoframe(struct drm_encoder *encoder,
-- 
1.9.1




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