From: Paulo Zanoni <[email protected]>

Should prevent bugs when changing the port.

Signed-off-by: Paulo Zanoni <[email protected]>
Reviewed-by: Eugeni Dodonov <[email protected]>
---
 drivers/gpu/drm/i915/i915_reg.h   |    1 +
 drivers/gpu/drm/i915/intel_hdmi.c |    1 +
 2 files changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 8da0b40..cc0b90c 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -1699,6 +1699,7 @@
 #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)
diff --git a/drivers/gpu/drm/i915/intel_hdmi.c 
b/drivers/gpu/drm/i915/intel_hdmi.c
index 397299b..4ce5f1f 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -139,6 +139,7 @@ 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)
-- 
1.7.10

_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx

Reply via email to