diff --git a/configs/broadwell b/configs/broadwell
index 51b9df7..9921ff8 100644
--- a/configs/broadwell
+++ b/configs/broadwell
@@ -1,4 +1,5 @@
 CONFIG_GFX_GMA_CPU		= Broadwell
 CONFIG_GFX_GMA_CPU_VARIANT	= Normal
 CONFIG_GFX_GMA_INTERNAL_PORT	= DP
+CONFIG_GFX_GMA_ANALOG_I2C_PORT	= PCH_DAC
 CONFIG_GFX_GMA_DEFAULT_MMIO	= 16#e000_0000#
diff --git a/configs/broadwell_ult b/configs/broadwell_ult
index f209293..0860a1c 100644
--- a/configs/broadwell_ult
+++ b/configs/broadwell_ult
@@ -1,4 +1,5 @@
 CONFIG_GFX_GMA_CPU		= Broadwell
 CONFIG_GFX_GMA_CPU_VARIANT	= ULT
 CONFIG_GFX_GMA_INTERNAL_PORT	= DP
+CONFIG_GFX_GMA_ANALOG_I2C_PORT	= PCH_DAC
 CONFIG_GFX_GMA_DEFAULT_MMIO	= 16#e000_0000#
diff --git a/configs/haswell b/configs/haswell
index 724d651..e4a5c04 100644
--- a/configs/haswell
+++ b/configs/haswell
@@ -1,4 +1,5 @@
 CONFIG_GFX_GMA_CPU		= Haswell
 CONFIG_GFX_GMA_CPU_VARIANT	= Normal
 CONFIG_GFX_GMA_INTERNAL_PORT	= DP
+CONFIG_GFX_GMA_ANALOG_I2C_PORT	= PCH_DAC
 CONFIG_GFX_GMA_DEFAULT_MMIO	= 16#e000_0000#
diff --git a/configs/haswell_ult b/configs/haswell_ult
index f3deac5..d9c483e 100644
--- a/configs/haswell_ult
+++ b/configs/haswell_ult
@@ -1,4 +1,5 @@
 CONFIG_GFX_GMA_CPU		= Haswell
 CONFIG_GFX_GMA_CPU_VARIANT	= ULT
 CONFIG_GFX_GMA_INTERNAL_PORT	= DP
+CONFIG_GFX_GMA_ANALOG_I2C_PORT	= PCH_DAC
 CONFIG_GFX_GMA_DEFAULT_MMIO	= 16#e000_0000#
diff --git a/configs/ironlake b/configs/ironlake
index 7450d35..8a4e66a 100644
--- a/configs/ironlake
+++ b/configs/ironlake
@@ -1,4 +1,5 @@
 CONFIG_GFX_GMA_CPU		= Ironlake
 CONFIG_GFX_GMA_CPU_VARIANT	= Normal
 CONFIG_GFX_GMA_INTERNAL_PORT	= LVDS
+CONFIG_GFX_GMA_ANALOG_I2C_PORT	= PCH_DAC
 CONFIG_GFX_GMA_DEFAULT_MMIO	= 16#e000_0000#
diff --git a/configs/ivybridge_edp b/configs/ivybridge_edp
index 53907a0..32ce3d6 100644
--- a/configs/ivybridge_edp
+++ b/configs/ivybridge_edp
@@ -1,4 +1,5 @@
 CONFIG_GFX_GMA_CPU		= Ivybridge
 CONFIG_GFX_GMA_CPU_VARIANT	= Normal
 CONFIG_GFX_GMA_INTERNAL_PORT	= DP
+CONFIG_GFX_GMA_ANALOG_I2C_PORT	= PCH_DAC
 CONFIG_GFX_GMA_DEFAULT_MMIO	= 16#e000_0000#
diff --git a/configs/ivybridge_lvds b/configs/ivybridge_lvds
index 6a77aea..930a009 100644
--- a/configs/ivybridge_lvds
+++ b/configs/ivybridge_lvds
@@ -1,4 +1,5 @@
 CONFIG_GFX_GMA_CPU		= Ivybridge
 CONFIG_GFX_GMA_CPU_VARIANT	= Normal
 CONFIG_GFX_GMA_INTERNAL_PORT	= LVDS
+CONFIG_GFX_GMA_ANALOG_I2C_PORT	= PCH_DAC
 CONFIG_GFX_GMA_DEFAULT_MMIO	= 16#e000_0000#
diff --git a/configs/sandybridge b/configs/sandybridge
index 50a6c61..7d8075f 100644
--- a/configs/sandybridge
+++ b/configs/sandybridge
@@ -1,4 +1,5 @@
 CONFIG_GFX_GMA_CPU		= Sandybridge
 CONFIG_GFX_GMA_CPU_VARIANT	= Normal
 CONFIG_GFX_GMA_INTERNAL_PORT	= LVDS
+CONFIG_GFX_GMA_ANALOG_I2C_PORT	= PCH_DAC
 CONFIG_GFX_GMA_DEFAULT_MMIO	= 16#e000_0000#
diff --git a/configs/skylake b/configs/skylake
index 7867f79..4577c84 100644
--- a/configs/skylake
+++ b/configs/skylake
@@ -1,4 +1,5 @@
 CONFIG_GFX_GMA_CPU		= Skylake
 CONFIG_GFX_GMA_CPU_VARIANT	= Normal
 CONFIG_GFX_GMA_INTERNAL_PORT	= DP
+CONFIG_GFX_GMA_ANALOG_I2C_PORT	= PCH_DAC
 CONFIG_GFX_GMA_DEFAULT_MMIO	= 16#e000_0000#
diff --git a/configs/skylake_ult b/configs/skylake_ult
index 8c386db..5e67484 100644
--- a/configs/skylake_ult
+++ b/configs/skylake_ult
@@ -1,4 +1,5 @@
 CONFIG_GFX_GMA_CPU		= Skylake
 CONFIG_GFX_GMA_CPU_VARIANT	= ULT
 CONFIG_GFX_GMA_INTERNAL_PORT	= DP
+CONFIG_GFX_GMA_ANALOG_I2C_PORT	= PCH_DAC
 CONFIG_GFX_GMA_DEFAULT_MMIO	= 16#e000_0000#