diff options
| -rw-r--r-- | drivers/gpu/drm/i915/intel_ddi.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c index e0b618851a53..43b38d76761c 100644 --- a/drivers/gpu/drm/i915/intel_ddi.c +++ b/drivers/gpu/drm/i915/intel_ddi.c @@ -191,6 +191,12 @@ enum port intel_ddi_get_encoder_port(struct intel_encoder *intel_encoder) } } +static bool +intel_dig_port_supports_hdmi(const struct intel_digital_port *intel_dig_port) +{ + return intel_dig_port->hdmi.hdmi_reg; +} + /* * Starting with Haswell, DDI port buffers must be programmed with correct * values in advance. The buffer values are different for FDI and DP modes, @@ -294,6 +300,9 @@ static void intel_prepare_ddi_buffers(struct drm_device *dev, reg += 4; } + if (!intel_dig_port_supports_hdmi(intel_dig_port)) + return; + /* Choose a good default if VBT is badly populated */ if (hdmi_level == HDMI_LEVEL_SHIFT_UNKNOWN || hdmi_level >= n_hdmi_entries) |