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path: root/drivers/gpu/drm/i915/intel_hdmi.c
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Diffstat (limited to 'drivers/gpu/drm/i915/intel_hdmi.c')
-rw-r--r--drivers/gpu/drm/i915/intel_hdmi.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
index 1eef50d470d..bf218753cba 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -220,7 +220,8 @@ static void intel_set_infoframe(struct drm_encoder *encoder,
intel_hdmi->write_infoframe(encoder, frame);
}
-static void intel_hdmi_set_avi_infoframe(struct drm_encoder *encoder)
+static void intel_hdmi_set_avi_infoframe(struct drm_encoder *encoder,
+ struct drm_display_mode *adjusted_mode)
{
struct dip_infoframe avi_if = {
.type = DIP_TYPE_AVI,
@@ -228,6 +229,9 @@ static void intel_hdmi_set_avi_infoframe(struct drm_encoder *encoder)
.len = DIP_LEN_AVI,
};
+ if (adjusted_mode->flags & DRM_MODE_FLAG_DBLCLK)
+ avi_if.body.avi.YQ_CN_PR |= DIP_AVI_PR_2;
+
intel_set_infoframe(encoder, &avi_if);
}
@@ -290,7 +294,7 @@ static void intel_hdmi_mode_set(struct drm_encoder *encoder,
I915_WRITE(intel_hdmi->sdvox_reg, sdvox);
POSTING_READ(intel_hdmi->sdvox_reg);
- intel_hdmi_set_avi_infoframe(encoder);
+ intel_hdmi_set_avi_infoframe(encoder, adjusted_mode);
intel_hdmi_set_spd_infoframe(encoder);
}