diff options
| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2015-12-08 20:59:38 +0300 |
|---|---|---|
| committer | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2016-01-12 16:59:58 +0300 |
| commit | ccb1a8319015d31a51e8206b66ab3aaea07417ba (patch) | |
| tree | ef6b0bf0e2ebefd5319cf0937a61686f43c075a8 /drivers/gpu/drm/i915/intel_hdmi.c | |
| parent | 10e7bec38bbda47653b46d4e1257876124824a9b (diff) | |
| download | linux-ccb1a8319015d31a51e8206b66ab3aaea07417ba.tar.xz | |
drm/i915: Store max lane count in intel_digital_port
Rather than having open coded checks for the DDI A/E configuration,
just store the max supported lane count in intel_digital_port.
We had an open coded check for DDI A, but not for DDI E. So we may
have been vilating the DDI E max lane count.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_hdmi.c')
| -rwxr-xr-x | drivers/gpu/drm/i915/intel_hdmi.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c index 054aa7613390..d4ed7aa9927e 100755 --- a/drivers/gpu/drm/i915/intel_hdmi.c +++ b/drivers/gpu/drm/i915/intel_hdmi.c @@ -2033,6 +2033,11 @@ void intel_hdmi_init_connector(struct intel_digital_port *intel_dig_port, enum port port = intel_dig_port->port; uint8_t alternate_ddc_pin; + if (WARN(intel_dig_port->max_lanes < 4, + "Not enough lanes (%d) for HDMI on port %c\n", + intel_dig_port->max_lanes, port_name(port))) + return; + drm_connector_init(dev, connector, &intel_hdmi_connector_funcs, DRM_MODE_CONNECTOR_HDMIA); drm_connector_helper_add(connector, &intel_hdmi_connector_helper_funcs); @@ -2218,6 +2223,7 @@ void intel_hdmi_init(struct drm_device *dev, dev_priv->dig_port_map[port] = intel_encoder; intel_dig_port->hdmi.hdmi_reg = hdmi_reg; intel_dig_port->dp.output_reg = INVALID_MMIO_REG; + intel_dig_port->max_lanes = 4; intel_hdmi_init_connector(intel_dig_port, intel_connector); } |