drm/i915: Move bxt_ddi_vswing_sequence() call into intel_ddi_pre_enable() for HDMI

Now that the SKL iboost programming is done from intel_ddi_pre_enable()
for HDMI, let's move the BXT bxt_ddi_vswing_sequence() call there as
well. This makes things look more similar to the DP/eDP case which
is handled in ddi_signal_levels().

Cc: Imre Deak <imre.deak@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1468328376-6380-5-git-send-email-ville.syrjala@linux.intel.com
Reviewed-by: Imre Deak <imre.deak@intel.com>

diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index 09fe580..52589bb 100644 (file)
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -301,9 +301,6 @@ static const struct bxt_ddi_buf_trans bxt_ddi_translations_hdmi[] = {
        { 154, 0x9A, 1, 128, true },    /* 9:   1200            0   */
 };
 
-static void bxt_ddi_vswing_sequence(struct drm_i915_private *dev_priv,
-                                   u32 level, enum port port, int type);
-
 static void ddi_get_encoder_port(struct intel_encoder *intel_encoder,
                                 struct intel_digital_port **dig_port,
                                 enum port *port)
@@ -446,15 +443,8 @@ void intel_prepare_ddi_buffer(struct intel_encoder *encoder)
        port = intel_ddi_get_encoder_port(encoder);
        hdmi_level = intel_ddi_hdmi_level(dev_priv, port);
 
-       if (IS_BROXTON(dev_priv)) {
-               if (encoder->type != INTEL_OUTPUT_HDMI)
-                       return;
-
-               /* Vswing programming for HDMI */
-               bxt_ddi_vswing_sequence(dev_priv, hdmi_level, port,
-                                       INTEL_OUTPUT_HDMI);
+       if (IS_BROXTON(dev_priv))
                return;
-       }
 
        if (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv)) {
                ddi_translations_fdi = NULL;
@@ -1676,6 +1666,9 @@ static void intel_ddi_pre_enable(struct intel_encoder *intel_encoder)
 
                if (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv))
                        skl_ddi_set_iboost(intel_encoder, level);
+               else if (IS_BROXTON(dev_priv))
+                       bxt_ddi_vswing_sequence(dev_priv, level, port,
+                                               INTEL_OUTPUT_HDMI);
 
                intel_hdmi->set_infoframes(encoder,
                                           crtc->config->has_hdmi_sink,