diff options
Diffstat (limited to 'drivers/gpu/drm/i915/display/g4x_hdmi.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/g4x_hdmi.c | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/display/g4x_hdmi.c b/drivers/gpu/drm/i915/display/g4x_hdmi.c index 5c187e6e0472..634b14116d9d 100644 --- a/drivers/gpu/drm/i915/display/g4x_hdmi.c +++ b/drivers/gpu/drm/i915/display/g4x_hdmi.c @@ -659,6 +659,20 @@ int g4x_hdmi_connector_atomic_check(struct drm_connector *connector, return ret; } +static bool is_hdmi_port_valid(struct drm_i915_private *i915, enum port port) +{ + if (IS_G4X(i915) || IS_VALLEYVIEW(i915)) + return port == PORT_B || port == PORT_C; + else + return port == PORT_B || port == PORT_C || port == PORT_D; +} + +static bool assert_hdmi_port_valid(struct drm_i915_private *i915, enum port port) +{ + return !drm_WARN(&i915->drm, !is_hdmi_port_valid(i915, port), + "Platform does not support HDMI %c\n", port_name(port)); +} + void g4x_hdmi_init(struct drm_i915_private *dev_priv, i915_reg_t hdmi_reg, enum port port) { @@ -667,6 +681,12 @@ void g4x_hdmi_init(struct drm_i915_private *dev_priv, struct intel_encoder *intel_encoder; struct intel_connector *intel_connector; + if (!assert_port_valid(dev_priv, port)) + return; + + if (!assert_hdmi_port_valid(dev_priv, port)) + return; + devdata = intel_bios_encoder_data_lookup(dev_priv, port); /* FIXME bail? */ @@ -678,6 +698,8 @@ void g4x_hdmi_init(struct drm_i915_private *dev_priv, if (!dig_port) return; + dig_port->aux_ch = AUX_CH_NONE; + intel_connector = intel_connector_alloc(); if (!intel_connector) { kfree(dig_port); @@ -753,6 +775,5 @@ void g4x_hdmi_init(struct drm_i915_private *dev_priv, intel_infoframe_init(dig_port); - dig_port->aux_ch = intel_dp_aux_ch(intel_encoder); intel_hdmi_init_connector(dig_port, intel_connector); } |