diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_hdmi.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_hdmi.c | 41 |
1 files changed, 40 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c index 1b4f5528cbd0..097bfa504ece 100644 --- a/drivers/gpu/drm/i915/intel_hdmi.c +++ b/drivers/gpu/drm/i915/intel_hdmi.c @@ -2704,6 +2704,36 @@ static void chv_hdmi_pre_enable(struct intel_encoder *encoder, chv_phy_release_cl2_override(encoder); } +static struct i2c_adapter * +intel_hdmi_get_i2c_adapter(struct drm_connector *connector) +{ + struct drm_i915_private *dev_priv = to_i915(connector->dev); + struct intel_hdmi *intel_hdmi = intel_attached_hdmi(connector); + + return intel_gmbus_get_adapter(dev_priv, intel_hdmi->ddc_bus); +} + +static void intel_hdmi_create_i2c_symlink(struct drm_connector *connector) +{ + struct i2c_adapter *adapter = intel_hdmi_get_i2c_adapter(connector); + struct kobject *i2c_kobj = &adapter->dev.kobj; + struct kobject *connector_kobj = &connector->kdev->kobj; + int ret; + + ret = sysfs_create_link(connector_kobj, i2c_kobj, i2c_kobj->name); + if (ret) + DRM_ERROR("Failed to create i2c symlink (%d)\n", ret); +} + +static void intel_hdmi_remove_i2c_symlink(struct drm_connector *connector) +{ + struct i2c_adapter *adapter = intel_hdmi_get_i2c_adapter(connector); + struct kobject *i2c_kobj = &adapter->dev.kobj; + struct kobject *connector_kobj = &connector->kdev->kobj; + + sysfs_remove_link(connector_kobj, i2c_kobj->name); +} + static int intel_hdmi_connector_register(struct drm_connector *connector) { @@ -2715,6 +2745,8 @@ intel_hdmi_connector_register(struct drm_connector *connector) i915_debugfs_connector_add(connector); + intel_hdmi_create_i2c_symlink(connector); + return ret; } @@ -2726,6 +2758,13 @@ static void intel_hdmi_destroy(struct drm_connector *connector) intel_connector_destroy(connector); } +static void intel_hdmi_connector_unregister(struct drm_connector *connector) +{ + intel_hdmi_remove_i2c_symlink(connector); + + intel_connector_unregister(connector); +} + static const struct drm_connector_funcs intel_hdmi_connector_funcs = { .detect = intel_hdmi_detect, .force = intel_hdmi_force, @@ -2733,7 +2772,7 @@ static const struct drm_connector_funcs intel_hdmi_connector_funcs = { .atomic_get_property = intel_digital_connector_atomic_get_property, .atomic_set_property = intel_digital_connector_atomic_set_property, .late_register = intel_hdmi_connector_register, - .early_unregister = intel_connector_unregister, + .early_unregister = intel_hdmi_connector_unregister, .destroy = intel_hdmi_destroy, .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, .atomic_duplicate_state = intel_digital_connector_duplicate_state, |