drm/i915: Subclass intel_encoder.
[firefly-linux-kernel-4.4.55.git] / drivers / gpu / drm / i915 / intel_hdmi.c
index 197887ed1823fcc4e1023d3fbcc2900488b2796c..ccd4c97e652492f19d85abf532d56aafcab6968a 100644 (file)
 #include "i915_drm.h"
 #include "i915_drv.h"
 
-struct intel_hdmi_priv {
+struct intel_hdmi {
+       struct intel_encoder base;
        u32 sdvox_reg;
        bool has_hdmi_sink;
 };
 
+static struct intel_hdmi *enc_to_intel_hdmi(struct drm_encoder *encoder)
+{
+       return container_of(enc_to_intel_encoder(encoder), struct intel_hdmi, base);
+}
+
 static void intel_hdmi_mode_set(struct drm_encoder *encoder,
                                struct drm_display_mode *mode,
                                struct drm_display_mode *adjusted_mode)
@@ -50,8 +56,7 @@ static void intel_hdmi_mode_set(struct drm_encoder *encoder,
        struct drm_i915_private *dev_priv = dev->dev_private;
        struct drm_crtc *crtc = encoder->crtc;
        struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
-       struct intel_encoder *intel_encoder = enc_to_intel_encoder(encoder);
-       struct intel_hdmi_priv *hdmi_priv = intel_encoder->dev_priv;
+       struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(encoder);
        u32 sdvox;
 
        sdvox = SDVO_ENCODING_HDMI | SDVO_BORDER_ENABLE;
@@ -60,7 +65,7 @@ static void intel_hdmi_mode_set(struct drm_encoder *encoder,
        if (adjusted_mode->flags & DRM_MODE_FLAG_PHSYNC)
                sdvox |= SDVO_HSYNC_ACTIVE_HIGH;
 
-       if (hdmi_priv->has_hdmi_sink) {
+       if (intel_hdmi->has_hdmi_sink) {
                sdvox |= SDVO_AUDIO_ENABLE;
                if (HAS_PCH_CPT(dev))
                        sdvox |= HDMI_MODE_SELECT;
@@ -73,26 +78,25 @@ static void intel_hdmi_mode_set(struct drm_encoder *encoder,
                        sdvox |= SDVO_PIPE_B_SELECT;
        }
 
-       I915_WRITE(hdmi_priv->sdvox_reg, sdvox);
-       POSTING_READ(hdmi_priv->sdvox_reg);
+       I915_WRITE(intel_hdmi->sdvox_reg, sdvox);
+       POSTING_READ(intel_hdmi->sdvox_reg);
 }
 
 static void intel_hdmi_dpms(struct drm_encoder *encoder, int mode)
 {
        struct drm_device *dev = encoder->dev;
        struct drm_i915_private *dev_priv = dev->dev_private;
-       struct intel_encoder *intel_encoder = enc_to_intel_encoder(encoder);
-       struct intel_hdmi_priv *hdmi_priv = intel_encoder->dev_priv;
+       struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(encoder);
        u32 temp;
 
-       temp = I915_READ(hdmi_priv->sdvox_reg);
+       temp = I915_READ(intel_hdmi->sdvox_reg);
 
        /* HW workaround, need to toggle enable bit off and on for 12bpc, but
         * we do this anyway which shows more stable in testing.
         */
        if (HAS_PCH_SPLIT(dev)) {
-               I915_WRITE(hdmi_priv->sdvox_reg, temp & ~SDVO_ENABLE);
-               POSTING_READ(hdmi_priv->sdvox_reg);
+               I915_WRITE(intel_hdmi->sdvox_reg, temp & ~SDVO_ENABLE);
+               POSTING_READ(intel_hdmi->sdvox_reg);
        }
 
        if (mode != DRM_MODE_DPMS_ON) {
@@ -101,15 +105,15 @@ static void intel_hdmi_dpms(struct drm_encoder *encoder, int mode)
                temp |= SDVO_ENABLE;
        }
 
-       I915_WRITE(hdmi_priv->sdvox_reg, temp);
-       POSTING_READ(hdmi_priv->sdvox_reg);
+       I915_WRITE(intel_hdmi->sdvox_reg, temp);
+       POSTING_READ(intel_hdmi->sdvox_reg);
 
        /* HW workaround, need to write this twice for issue that may result
         * in first write getting masked.
         */
        if (HAS_PCH_SPLIT(dev)) {
-               I915_WRITE(hdmi_priv->sdvox_reg, temp);
-               POSTING_READ(hdmi_priv->sdvox_reg);
+               I915_WRITE(intel_hdmi->sdvox_reg, temp);
+               POSTING_READ(intel_hdmi->sdvox_reg);
        }
 }
 
@@ -138,19 +142,17 @@ static enum drm_connector_status
 intel_hdmi_detect(struct drm_connector *connector)
 {
        struct drm_encoder *encoder = intel_attached_encoder(connector);
-       struct intel_encoder *intel_encoder = enc_to_intel_encoder(encoder);
-       struct intel_hdmi_priv *hdmi_priv = intel_encoder->dev_priv;
+       struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(encoder);
        struct edid *edid = NULL;
        enum drm_connector_status status = connector_status_disconnected;
 
-       hdmi_priv->has_hdmi_sink = false;
-       edid = drm_get_edid(connector,
-                           intel_encoder->ddc_bus);
+       intel_hdmi->has_hdmi_sink = false;
+       edid = drm_get_edid(connector, intel_hdmi->base.ddc_bus);
 
        if (edid) {
                if (edid->input & DRM_EDID_INPUT_DIGITAL) {
                        status = connector_status_connected;
-                       hdmi_priv->has_hdmi_sink = drm_detect_hdmi_monitor(edid);
+                       intel_hdmi->has_hdmi_sink = drm_detect_hdmi_monitor(edid);
                }
                connector->display_info.raw_edid = NULL;
                kfree(edid);
@@ -162,13 +164,13 @@ intel_hdmi_detect(struct drm_connector *connector)
 static int intel_hdmi_get_modes(struct drm_connector *connector)
 {
        struct drm_encoder *encoder = intel_attached_encoder(connector);
-       struct intel_encoder *intel_encoder = enc_to_intel_encoder(encoder);
+       struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(encoder);
 
        /* We should parse the EDID data and find out if it's an HDMI sink so
         * we can send audio to it.
         */
 
-       return intel_ddc_get_modes(connector, intel_encoder->ddc_bus);
+       return intel_ddc_get_modes(connector, intel_hdmi->base.ddc_bus);
 }
 
 static void intel_hdmi_destroy(struct drm_connector *connector)
@@ -199,18 +201,8 @@ static const struct drm_connector_helper_funcs intel_hdmi_connector_helper_funcs
        .best_encoder = intel_attached_encoder,
 };
 
-static void intel_hdmi_enc_destroy(struct drm_encoder *encoder)
-{
-       struct intel_encoder *intel_encoder = enc_to_intel_encoder(encoder);
-
-       if (intel_encoder->i2c_bus)
-               intel_i2c_destroy(intel_encoder->i2c_bus);
-       drm_encoder_cleanup(encoder);
-       kfree(intel_encoder);
-}
-
 static const struct drm_encoder_funcs intel_hdmi_enc_funcs = {
-       .destroy = intel_hdmi_enc_destroy,
+       .destroy = intel_encoder_destroy,
 };
 
 void intel_hdmi_init(struct drm_device *dev, int sdvox_reg)
@@ -219,21 +211,19 @@ void intel_hdmi_init(struct drm_device *dev, int sdvox_reg)
        struct drm_connector *connector;
        struct intel_encoder *intel_encoder;
        struct intel_connector *intel_connector;
-       struct intel_hdmi_priv *hdmi_priv;
+       struct intel_hdmi *intel_hdmi;
 
-       intel_encoder = kcalloc(sizeof(struct intel_encoder) +
-                              sizeof(struct intel_hdmi_priv), 1, GFP_KERNEL);
-       if (!intel_encoder)
+       intel_hdmi = kzalloc(sizeof(struct intel_hdmi), GFP_KERNEL);
+       if (!intel_hdmi)
                return;
 
        intel_connector = kzalloc(sizeof(struct intel_connector), GFP_KERNEL);
        if (!intel_connector) {
-               kfree(intel_encoder);
+               kfree(intel_hdmi);
                return;
        }
 
-       hdmi_priv = (struct intel_hdmi_priv *)(intel_encoder + 1);
-
+       intel_encoder = &intel_hdmi->base;
        connector = &intel_connector->base;
        drm_connector_init(dev, connector, &intel_hdmi_connector_funcs,
                           DRM_MODE_CONNECTOR_HDMIA);
@@ -274,8 +264,7 @@ void intel_hdmi_init(struct drm_device *dev, int sdvox_reg)
        if (!intel_encoder->ddc_bus)
                goto err_connector;
 
-       hdmi_priv->sdvox_reg = sdvox_reg;
-       intel_encoder->dev_priv = hdmi_priv;
+       intel_hdmi->sdvox_reg = sdvox_reg;
 
        drm_encoder_init(dev, &intel_encoder->enc, &intel_hdmi_enc_funcs,
                         DRM_MODE_ENCODER_TMDS);
@@ -298,7 +287,7 @@ void intel_hdmi_init(struct drm_device *dev, int sdvox_reg)
 
 err_connector:
        drm_connector_cleanup(connector);
-       kfree(intel_encoder);
+       kfree(intel_hdmi);
        kfree(intel_connector);
 
        return;