drm/msm: hdmi audio support

Signed-off-by: Rob Clark <robdclark@gmail.com>
diff --git a/drivers/gpu/drm/msm/hdmi/hdmi.c b/drivers/gpu/drm/msm/hdmi/hdmi.c
index 6f1588a..6048b6b 100644
--- a/drivers/gpu/drm/msm/hdmi/hdmi.c
+++ b/drivers/gpu/drm/msm/hdmi/hdmi.c
@@ -67,6 +67,8 @@
 	if (hdmi->i2c)
 		hdmi_i2c_destroy(hdmi->i2c);
 
+	platform_set_drvdata(hdmi->pdev, NULL);
+
 	put_device(&hdmi->pdev->dev);
 }
 
@@ -102,6 +104,8 @@
 	hdmi->config = config;
 	hdmi->encoder = encoder;
 
+	hdmi_audio_infoframe_init(&hdmi->audio.infoframe);
+
 	/* not sure about which phy maps to which msm.. probably I miss some */
 	if (config->phy_init)
 		hdmi->phy = config->phy_init(hdmi);
@@ -228,6 +232,8 @@
 	priv->bridges[priv->num_bridges++]       = hdmi->bridge;
 	priv->connectors[priv->num_connectors++] = hdmi->connector;
 
+	platform_set_drvdata(pdev, hdmi);
+
 	return hdmi;
 
 fail:
@@ -305,7 +311,7 @@
 		config.ddc_data_gpio = 71;
 		config.hpd_gpio      = 72;
 		config.mux_en_gpio   = -1;
-		config.mux_sel_gpio  = 13 + NR_GPIO_IRQS;
+		config.mux_sel_gpio  = -1;
 	} else if (cpu_is_msm8960() || cpu_is_msm8960ab()) {
 		static const char *hpd_reg_names[] = {"8921_hdmi_mvs"};
 		config.phy_init      = hdmi_phy_8960_init;