Those are driven by DDIs on Haswell architecture, so we need to keep track
of which DDI is being used on each output.
Signed-off-by: Eugeni Dodonov <eugeni.dodo...@intel.com>
---
drivers/gpu/drm/i915/intel_hdmi.c | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff --git a/drivers/gpu/drm/i915/intel_hdmi.c
b/drivers/gpu/drm/i915/intel_hdmi.c
index de54c01..6921756 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -41,6 +41,7 @@ struct intel_hdmi {
struct intel_encoder base;
u32 sdvox_reg;
int ddc_bus;
+ int ddi_port;
uint32_t color_range;
bool has_hdmi_sink;
bool has_audio;
@@ -542,6 +543,24 @@ void intel_hdmi_init(struct drm_device *dev, int sdvox_reg)
intel_encoder->clone_mask = (1 << INTEL_HDMIF_CLONE_BIT);
intel_hdmi->ddc_bus = GMBUS_PORT_DPD;
dev_priv->hotplug_supported_mask |= HDMID_HOTPLUG_INT_STATUS;
+ } else if (sdvox_reg == DDI_BUF_CTL(PORT_B)) {
+ DRM_DEBUG_DRIVER("LPT: detected output on DDI B\n");
+ intel_encoder->clone_mask = (1 << INTEL_HDMIB_CLONE_BIT);
+ intel_hdmi->ddc_bus = GMBUS_PORT_DPB;
+ intel_hdmi->ddi_port = PORT_B;
+ dev_priv->hotplug_supported_mask |= HDMIB_HOTPLUG_INT_STATUS;
+ } else if (sdvox_reg == DDI_BUF_CTL(PORT_C)) {
+ DRM_DEBUG_DRIVER("LPT: detected output on DDI C\n");
+ intel_encoder->clone_mask = (1 << INTEL_HDMIC_CLONE_BIT);
+ intel_hdmi->ddc_bus = GMBUS_PORT_DPC;
+ intel_hdmi->ddi_port = PORT_C;
+ dev_priv->hotplug_supported_mask |= HDMIC_HOTPLUG_INT_STATUS;
+ } else if (sdvox_reg == DDI_BUF_CTL(PORT_D)) {
+ DRM_DEBUG_DRIVER("LPT: detected output on DDI A\n");
+ intel_encoder->clone_mask = (1 << INTEL_HDMID_CLONE_BIT);
+ intel_hdmi->ddc_bus = GMBUS_PORT_DPD;
+ intel_hdmi->ddi_port = PORT_D;
+ dev_priv->hotplug_supported_mask |= HDMID_HOTPLUG_INT_STATUS;
} else {
DRM_DEBUG_DRIVER("Unknown sdvox register %x\n", sdvox_reg);
}
--
1.7.9.5
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