drm/i915: use GMBUS to manage i2c links

[pandora-kernel.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 ccd4c97..f814cb0 100644 (file)
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -40,12 +40,19 @@
 struct intel_hdmi {
        struct intel_encoder base;
        u32 sdvox_reg;
+       int ddc_bus;
        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);
+       return container_of(encoder, struct intel_hdmi, base.base);
+}
+
+static struct intel_hdmi *intel_attached_hdmi(struct drm_connector *connector)
+{
+       return container_of(intel_attached_encoder(connector),
+                           struct intel_hdmi, base);
 }
 
 static void intel_hdmi_mode_set(struct drm_encoder *encoder,
@@ -141,13 +148,14 @@ static bool intel_hdmi_mode_fixup(struct drm_encoder *encoder,
 static enum drm_connector_status
 intel_hdmi_detect(struct drm_connector *connector)
 {
-       struct drm_encoder *encoder = intel_attached_encoder(connector);
-       struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(encoder);
-       struct edid *edid = NULL;
+       struct intel_hdmi *intel_hdmi = intel_attached_hdmi(connector);
+       struct drm_i915_private *dev_priv = connector->dev->dev_private;
+       struct edid *edid;
        enum drm_connector_status status = connector_status_disconnected;
 
        intel_hdmi->has_hdmi_sink = false;
-       edid = drm_get_edid(connector, intel_hdmi->base.ddc_bus);
+       edid = drm_get_edid(connector,
+                           &dev_priv->gmbus[intel_hdmi->ddc_bus].adapter);
 
        if (edid) {
                if (edid->input & DRM_EDID_INPUT_DIGITAL) {
@@ -163,14 +171,15 @@ 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_hdmi *intel_hdmi = enc_to_intel_hdmi(encoder);
+       struct intel_hdmi *intel_hdmi = intel_attached_hdmi(connector);
+       struct drm_i915_private *dev_priv = connector->dev->dev_private;
 
        /* 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_hdmi->base.ddc_bus);
+       return intel_ddc_get_modes(connector,
+                                  &dev_priv->gmbus[intel_hdmi->ddc_bus].adapter);
 }
 
 static void intel_hdmi_destroy(struct drm_connector *connector)
@@ -198,7 +207,7 @@ static const struct drm_connector_funcs intel_hdmi_connector_funcs = {
 static const struct drm_connector_helper_funcs intel_hdmi_connector_helper_funcs = {
        .get_modes = intel_hdmi_get_modes,
        .mode_valid = intel_hdmi_mode_valid,
-       .best_encoder = intel_attached_encoder,
+       .best_encoder = intel_best_encoder,
 };
 
 static const struct drm_encoder_funcs intel_hdmi_enc_funcs = {
@@ -224,6 +233,9 @@ void intel_hdmi_init(struct drm_device *dev, int sdvox_reg)
        }
 
        intel_encoder = &intel_hdmi->base;
+       drm_encoder_init(dev, &intel_encoder->base, &intel_hdmi_enc_funcs,
+                        DRM_MODE_ENCODER_TMDS);
+
        connector = &intel_connector->base;
        drm_connector_init(dev, connector, &intel_hdmi_connector_funcs,
                           DRM_MODE_CONNECTOR_HDMIA);
@@ -239,39 +251,31 @@ void intel_hdmi_init(struct drm_device *dev, int sdvox_reg)
        /* Set up the DDC bus. */
        if (sdvox_reg == SDVOB) {
                intel_encoder->clone_mask = (1 << INTEL_HDMIB_CLONE_BIT);
-               intel_encoder->ddc_bus = intel_i2c_create(dev, GPIOE, "HDMIB");
+               intel_hdmi->ddc_bus = GMBUS_PORT_DPB;
                dev_priv->hotplug_supported_mask |= HDMIB_HOTPLUG_INT_STATUS;
        } else if (sdvox_reg == SDVOC) {
                intel_encoder->clone_mask = (1 << INTEL_HDMIC_CLONE_BIT);
-               intel_encoder->ddc_bus = intel_i2c_create(dev, GPIOD, "HDMIC");
+               intel_hdmi->ddc_bus = GMBUS_PORT_DPC;
                dev_priv->hotplug_supported_mask |= HDMIC_HOTPLUG_INT_STATUS;
        } else if (sdvox_reg == HDMIB) {
                intel_encoder->clone_mask = (1 << INTEL_HDMID_CLONE_BIT);
-               intel_encoder->ddc_bus = intel_i2c_create(dev, PCH_GPIOE,
-                                                               "HDMIB");
+               intel_hdmi->ddc_bus = GMBUS_PORT_DPB;
                dev_priv->hotplug_supported_mask |= HDMIB_HOTPLUG_INT_STATUS;
        } else if (sdvox_reg == HDMIC) {
                intel_encoder->clone_mask = (1 << INTEL_HDMIE_CLONE_BIT);
-               intel_encoder->ddc_bus = intel_i2c_create(dev, PCH_GPIOD,
-                                                               "HDMIC");
+               intel_hdmi->ddc_bus = GMBUS_PORT_DPC;
                dev_priv->hotplug_supported_mask |= HDMIC_HOTPLUG_INT_STATUS;
        } else if (sdvox_reg == HDMID) {
                intel_encoder->clone_mask = (1 << INTEL_HDMIF_CLONE_BIT);
-               intel_encoder->ddc_bus = intel_i2c_create(dev, PCH_GPIOF,
-                                                               "HDMID");
+               intel_hdmi->ddc_bus = GMBUS_PORT_DPD;
                dev_priv->hotplug_supported_mask |= HDMID_HOTPLUG_INT_STATUS;
        }
-       if (!intel_encoder->ddc_bus)
-               goto err_connector;
 
        intel_hdmi->sdvox_reg = sdvox_reg;
 
-       drm_encoder_init(dev, &intel_encoder->enc, &intel_hdmi_enc_funcs,
-                        DRM_MODE_ENCODER_TMDS);
-       drm_encoder_helper_add(&intel_encoder->enc, &intel_hdmi_helper_funcs);
+       drm_encoder_helper_add(&intel_encoder->base, &intel_hdmi_helper_funcs);
 
-       drm_mode_connector_attach_encoder(&intel_connector->base,
-                                         &intel_encoder->enc);
+       intel_connector_attach_encoder(intel_connector, intel_encoder);
        drm_sysfs_connector_add(connector);
 
        /* For G4X desktop chip, PEG_BAND_GAP_DATA 3:0 must first be written
@@ -282,13 +286,4 @@ void intel_hdmi_init(struct drm_device *dev, int sdvox_reg)
                u32 temp = I915_READ(PEG_BAND_GAP_DATA);
                I915_WRITE(PEG_BAND_GAP_DATA, (temp & ~0xf) | 0xd);
        }
-
-       return;
-
-err_connector:
-       drm_connector_cleanup(connector);
-       kfree(intel_hdmi);
-       kfree(intel_connector);
-
-       return;
 }