drm/i915: Fix port_clock and adjusted_mode.clock readout all over

[deliverable/linux.git] / drivers / gpu / drm / i915 / intel_hdmi.c

diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
index 70c716ed835042a269fa5fdbfe167b59431ad270..17b2d7e948b69dcb655578ed4075fd1e7aa2c357 100644 (file)
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -713,6 +713,7 @@ static void intel_hdmi_get_config(struct intel_encoder *encoder,
        struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&encoder->base);
        struct drm_i915_private *dev_priv = encoder->base.dev->dev_private;
        u32 tmp, flags = 0;
+       int dotclock;
 
        tmp = I915_READ(intel_hdmi->hdmi_reg);
 
@@ -727,6 +728,16 @@ static void intel_hdmi_get_config(struct intel_encoder *encoder,
                flags |= DRM_MODE_FLAG_NVSYNC;
 
        pipe_config->adjusted_mode.flags |= flags;
+
+       if ((tmp & SDVO_COLOR_FORMAT_MASK) == HDMI_COLOR_FORMAT_12bpc)
+               dotclock = pipe_config->port_clock * 2 / 3;
+       else
+               dotclock = pipe_config->port_clock;
+
+       if (HAS_PCH_SPLIT(dev_priv->dev))
+               ironlake_check_encoder_dotclock(pipe_config, dotclock);
+
+       pipe_config->adjusted_mode.clock = dotclock;
 }
 
 static void intel_enable_hdmi(struct intel_encoder *encoder)