drm/i915: get port power domain in connector detect handlers

The connector detect and get_mode handlers need to access the port
specific HW blocks to read the EDID etc. Get/put the port power domains
around these handlers.

v2:
- get port power domain for HDMI too (Ville)
- get port power domain for the DP,HDMI audio detect handlers (Jesse)
- Leave the intel_runtime_pm_get/put in the DP detect function in place.
  Instead of just removing them, these should be moved to the appropriate
  power_well enable/disable handlers. We can do this after Paulo's
  'Merge PC8 with runtime PM, v2' patchset.
v3:
- rebased on latest -nightly

Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c
index 469071d..96e28b8 100644 (file)
--- a/drivers/gpu/drm/i915/intel_crt.c
+++ b/drivers/gpu/drm/i915/intel_crt.c
@@ -636,6 +636,8 @@ intel_crt_detect(struct drm_connector *connector, bool force)
        struct drm_device *dev = connector->dev;
        struct drm_i915_private *dev_priv = dev->dev_private;
        struct intel_crt *crt = intel_attached_crt(connector);
+       struct intel_encoder *intel_encoder = &crt->base;
+       enum intel_display_power_domain power_domain;
        enum drm_connector_status status;
        struct intel_load_detect_pipe tmp;
 
@@ -645,6 +647,9 @@ intel_crt_detect(struct drm_connector *connector, bool force)
                      connector->base.id, drm_get_connector_name(connector),
                      force);
 
+       power_domain = intel_display_port_power_domain(intel_encoder);
+       intel_display_power_get(dev_priv, power_domain);
+
        if (I915_HAS_HOTPLUG(dev)) {
                /* We can not rely on the HPD pin always being correctly wired
                 * up, for example many KVM do not pass it through, and so
@@ -688,7 +693,9 @@ intel_crt_detect(struct drm_connector *connector, bool force)
                status = connector_status_unknown;
 
 out:
+       intel_display_power_put(dev_priv, power_domain);
        intel_runtime_pm_put(dev_priv);
+
        return status;
 }
 
@@ -702,17 +709,28 @@ static int intel_crt_get_modes(struct drm_connector *connector)
 {
        struct drm_device *dev = connector->dev;
        struct drm_i915_private *dev_priv = dev->dev_private;
+       struct intel_crt *crt = intel_attached_crt(connector);
+       struct intel_encoder *intel_encoder = &crt->base;
+       enum intel_display_power_domain power_domain;
        int ret;
        struct i2c_adapter *i2c;
 
+       power_domain = intel_display_port_power_domain(intel_encoder);
+       intel_display_power_get(dev_priv, power_domain);
+
        i2c = intel_gmbus_get_adapter(dev_priv, dev_priv->vbt.crt_ddc_pin);
        ret = intel_crt_ddc_get_modes(connector, i2c);
        if (ret || !IS_G4X(dev))
-               return ret;
+               goto out;
 
        /* Try to probe digital port for output in DVI-I -> VGA mode. */
        i2c = intel_gmbus_get_adapter(dev_priv, GMBUS_PORT_DPB);
-       return intel_crt_ddc_get_modes(connector, i2c);
+       ret = intel_crt_ddc_get_modes(connector, i2c);
+
+out:
+       intel_display_power_put(dev_priv, power_domain);
+
+       return ret;
 }
 
 static int intel_crt_set_property(struct drm_connector *connector,

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 62e8efe..56edb09 100644 (file)
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -3218,10 +3218,14 @@ intel_dp_detect(struct drm_connector *connector, bool force)
        struct drm_device *dev = connector->dev;
        struct drm_i915_private *dev_priv = dev->dev_private;
        enum drm_connector_status status;
+       enum intel_display_power_domain power_domain;
        struct edid *edid = NULL;
 
        intel_runtime_pm_get(dev_priv);
 
+       power_domain = intel_display_port_power_domain(intel_encoder);
+       intel_display_power_get(dev_priv, power_domain);
+
        DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
                      connector->base.id, drm_get_connector_name(connector));
 
@@ -3252,21 +3256,32 @@ intel_dp_detect(struct drm_connector *connector, bool force)
        status = connector_status_connected;
 
 out:
+       intel_display_power_put(dev_priv, power_domain);
+
        intel_runtime_pm_put(dev_priv);
+
        return status;
 }
 
 static int intel_dp_get_modes(struct drm_connector *connector)
 {
        struct intel_dp *intel_dp = intel_attached_dp(connector);
+       struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp);
+       struct intel_encoder *intel_encoder = &intel_dig_port->base;
        struct intel_connector *intel_connector = to_intel_connector(connector);
        struct drm_device *dev = connector->dev;
+       struct drm_i915_private *dev_priv = dev->dev_private;
+       enum intel_display_power_domain power_domain;
        int ret;
 
        /* We should parse the EDID data and find out if it has an audio sink
         */
 
+       power_domain = intel_display_port_power_domain(intel_encoder);
+       intel_display_power_get(dev_priv, power_domain);
+
        ret = intel_dp_get_edid_modes(connector, &intel_dp->adapter);
+       intel_display_power_put(dev_priv, power_domain);
        if (ret)
                return ret;
 
@@ -3287,15 +3302,25 @@ static bool
 intel_dp_detect_audio(struct drm_connector *connector)
 {
        struct intel_dp *intel_dp = intel_attached_dp(connector);
+       struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp);
+       struct intel_encoder *intel_encoder = &intel_dig_port->base;
+       struct drm_device *dev = connector->dev;
+       struct drm_i915_private *dev_priv = dev->dev_private;
+       enum intel_display_power_domain power_domain;
        struct edid *edid;
        bool has_audio = false;
 
+       power_domain = intel_display_port_power_domain(intel_encoder);
+       intel_display_power_get(dev_priv, power_domain);
+
        edid = intel_dp_get_edid(connector, &intel_dp->adapter);
        if (edid) {
                has_audio = drm_detect_monitor_audio(edid);
                kfree(edid);
        }
 
+       intel_display_power_put(dev_priv, power_domain);
+
        return has_audio;
 }
 

diff --git a/drivers/gpu/drm/i915/intel_dsi.c b/drivers/gpu/drm/i915/intel_dsi.c
index 3ee1db1..63b95bb 100644 (file)
--- a/drivers/gpu/drm/i915/intel_dsi.c
+++ b/drivers/gpu/drm/i915/intel_dsi.c
@@ -488,8 +488,19 @@ static enum drm_connector_status
 intel_dsi_detect(struct drm_connector *connector, bool force)
 {
        struct intel_dsi *intel_dsi = intel_attached_dsi(connector);
+       struct intel_encoder *intel_encoder = &intel_dsi->base;
+       enum intel_display_power_domain power_domain;
+       enum drm_connector_status connector_status;
+       struct drm_i915_private *dev_priv = intel_encoder->base.dev->dev_private;
+
        DRM_DEBUG_KMS("\n");
-       return intel_dsi->dev.dev_ops->detect(&intel_dsi->dev);
+       power_domain = intel_display_port_power_domain(intel_encoder);
+
+       intel_display_power_get(dev_priv, power_domain);
+       connector_status = intel_dsi->dev.dev_ops->detect(&intel_dsi->dev);
+       intel_display_power_put(dev_priv, power_domain);
+
+       return connector_status;
 }
 
 static int intel_dsi_get_modes(struct drm_connector *connector)

diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
index 98d68ab..ebccbbf 100644 (file)
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -909,11 +909,15 @@ intel_hdmi_detect(struct drm_connector *connector, bool force)
        struct intel_encoder *intel_encoder = &intel_dig_port->base;
        struct drm_i915_private *dev_priv = dev->dev_private;
        struct edid *edid;
+       enum intel_display_power_domain power_domain;
        enum drm_connector_status status = connector_status_disconnected;
 
        DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
                      connector->base.id, drm_get_connector_name(connector));
 
+       power_domain = intel_display_port_power_domain(intel_encoder);
+       intel_display_power_get(dev_priv, power_domain);
+
        intel_hdmi->has_hdmi_sink = false;
        intel_hdmi->has_audio = false;
        intel_hdmi->rgb_quant_range_selectable = false;
@@ -941,31 +945,48 @@ intel_hdmi_detect(struct drm_connector *connector, bool force)
                intel_encoder->type = INTEL_OUTPUT_HDMI;
        }
 
+       intel_display_power_put(dev_priv, power_domain);
+
        return status;
 }
 
 static int intel_hdmi_get_modes(struct drm_connector *connector)
 {
-       struct intel_hdmi *intel_hdmi = intel_attached_hdmi(connector);
+       struct intel_encoder *intel_encoder = intel_attached_encoder(connector);
+       struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&intel_encoder->base);
        struct drm_i915_private *dev_priv = connector->dev->dev_private;
+       enum intel_display_power_domain power_domain;
+       int ret;
 
        /* 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,
+       power_domain = intel_display_port_power_domain(intel_encoder);
+       intel_display_power_get(dev_priv, power_domain);
+
+       ret = intel_ddc_get_modes(connector,
                                   intel_gmbus_get_adapter(dev_priv,
                                                           intel_hdmi->ddc_bus));
+
+       intel_display_power_put(dev_priv, power_domain);
+
+       return ret;
 }
 
 static bool
 intel_hdmi_detect_audio(struct drm_connector *connector)
 {
-       struct intel_hdmi *intel_hdmi = intel_attached_hdmi(connector);
+       struct intel_encoder *intel_encoder = intel_attached_encoder(connector);
+       struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&intel_encoder->base);
        struct drm_i915_private *dev_priv = connector->dev->dev_private;
+       enum intel_display_power_domain power_domain;
        struct edid *edid;
        bool has_audio = false;
 
+       power_domain = intel_display_port_power_domain(intel_encoder);
+       intel_display_power_get(dev_priv, power_domain);
+
        edid = drm_get_edid(connector,
                            intel_gmbus_get_adapter(dev_priv,
                                                    intel_hdmi->ddc_bus));
@@ -975,6 +996,8 @@ intel_hdmi_detect_audio(struct drm_connector *connector)
                kfree(edid);
        }
 
+       intel_display_power_put(dev_priv, power_domain);
+
        return has_audio;
 }