diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_bios.c')
-rw-r--r-- | drivers/gpu/drm/i915/intel_bios.c | 39 |
1 files changed, 28 insertions, 11 deletions
diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c index be83b77aa018..b3e437b3bb54 100644 --- a/drivers/gpu/drm/i915/intel_bios.c +++ b/drivers/gpu/drm/i915/intel_bios.c @@ -905,23 +905,23 @@ static void parse_ddi_port(struct drm_i915_private *dev_priv, enum port port, uint8_t hdmi_level_shift; int i, j; bool is_dvi, is_hdmi, is_dp, is_edp, is_crt; - uint8_t aux_channel; + uint8_t aux_channel, ddc_pin; /* Each DDI port can have more than one value on the "DVO Port" field, * so look for all the possible values for each port and abort if more * than one is found. */ - int dvo_ports[][2] = { - {DVO_PORT_HDMIA, DVO_PORT_DPA}, - {DVO_PORT_HDMIB, DVO_PORT_DPB}, - {DVO_PORT_HDMIC, DVO_PORT_DPC}, - {DVO_PORT_HDMID, DVO_PORT_DPD}, - {DVO_PORT_CRT, -1 /* Port E can only be DVO_PORT_CRT */ }, + int dvo_ports[][3] = { + {DVO_PORT_HDMIA, DVO_PORT_DPA, -1}, + {DVO_PORT_HDMIB, DVO_PORT_DPB, -1}, + {DVO_PORT_HDMIC, DVO_PORT_DPC, -1}, + {DVO_PORT_HDMID, DVO_PORT_DPD, -1}, + {DVO_PORT_CRT, DVO_PORT_HDMIE, DVO_PORT_DPE}, }; /* Find the child device to use, abort if more than one found. */ for (i = 0; i < dev_priv->vbt.child_dev_num; i++) { it = dev_priv->vbt.child_dev + i; - for (j = 0; j < 2; j++) { + for (j = 0; j < 3; j++) { if (dvo_ports[port][j] == -1) break; @@ -939,6 +939,7 @@ static void parse_ddi_port(struct drm_i915_private *dev_priv, enum port port, return; aux_channel = child->raw[25]; + ddc_pin = child->common.ddc_pin; is_dvi = child->common.device_type & DEVICE_TYPE_TMDS_DVI_SIGNALING; is_dp = child->common.device_type & DEVICE_TYPE_DISPLAYPORT_OUTPUT; @@ -970,11 +971,27 @@ static void parse_ddi_port(struct drm_i915_private *dev_priv, enum port port, DRM_DEBUG_KMS("Port %c is internal DP\n", port_name(port)); if (is_dvi) { - if (child->common.ddc_pin == 0x05 && port != PORT_B) + if (port == PORT_E) { + info->alternate_ddc_pin = ddc_pin; + /* if DDIE share ddc pin with other port, then + * dvi/hdmi couldn't exist on the shared port. + * Otherwise they share the same ddc bin and system + * couldn't communicate with them seperately. */ + if (ddc_pin == DDC_PIN_B) { + dev_priv->vbt.ddi_port_info[PORT_B].supports_dvi = 0; + dev_priv->vbt.ddi_port_info[PORT_B].supports_hdmi = 0; + } else if (ddc_pin == DDC_PIN_C) { + dev_priv->vbt.ddi_port_info[PORT_C].supports_dvi = 0; + dev_priv->vbt.ddi_port_info[PORT_C].supports_hdmi = 0; + } else if (ddc_pin == DDC_PIN_D) { + dev_priv->vbt.ddi_port_info[PORT_D].supports_dvi = 0; + dev_priv->vbt.ddi_port_info[PORT_D].supports_hdmi = 0; + } + } else if (ddc_pin == DDC_PIN_B && port != PORT_B) DRM_DEBUG_KMS("Unexpected DDC pin for port B\n"); - if (child->common.ddc_pin == 0x04 && port != PORT_C) + else if (ddc_pin == DDC_PIN_C && port != PORT_C) DRM_DEBUG_KMS("Unexpected DDC pin for port C\n"); - if (child->common.ddc_pin == 0x06 && port != PORT_D) + else if (ddc_pin == DDC_PIN_D && port != PORT_D) DRM_DEBUG_KMS("Unexpected DDC pin for port D\n"); } |