Derive lvds_dual_channel from EDID timings.

Based on the info by Felix Held.

Change-Id: Iab84dd8a0e3c942da20a6e21db5510e4ad16cadd
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/11857
Tested-by: build bot (Jenkins)
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>

10 files changed, 0 insertions, 10 deletions

diff --git a/src/mainboard/lenovo/t400/devicetree.cb b/src/mainboard/lenovo/t400/devicetree.cb
index c3fffe863d..cf6157c963 100644
--- a/src/mainboard/lenovo/t400/devicetree.cb
+++ b/src/mainboard/lenovo/t400/devicetree.cb
@@ -4,7 +4,6 @@ chip northbridge/intel/gm45
 	register "gfx.did" = "{ 0x80000100, 0x80000240, 0x80000410, 0x80000410, 0x00000005 }"
 
 	register "gfx.use_spread_spectrum_clock" = "1"
-	register "gfx.lvds_dual_channel" = "0"
 	register "gfx.link_frequency_270_mhz" = "1"
 	register "gfx.lvds_num_lanes" = "4"
 
diff --git a/src/mainboard/lenovo/t420s/devicetree.cb b/src/mainboard/lenovo/t420s/devicetree.cb
index cd7022850c..9dd32c0e21 100644
--- a/src/mainboard/lenovo/t420s/devicetree.cb
+++ b/src/mainboard/lenovo/t420s/devicetree.cb
@@ -13,7 +13,6 @@ chip northbridge/intel/sandybridge
 	register "gpu_panel_power_backlight_on_delay" = "2000"	# T3: 200ms
 	register "gpu_panel_power_backlight_off_delay" = "2000"	# T4: 200ms
 	register "gfx.use_spread_spectrum_clock" = "1"
-	register "gfx.lvds_dual_channel" = "1"
 	register "gfx.link_frequency_270_mhz" = "1"
 	register "gfx.lvds_num_lanes" = "4"
 	register "gpu_cpu_backlight" = "0x1155"
diff --git a/src/mainboard/lenovo/t430s/devicetree.cb b/src/mainboard/lenovo/t430s/devicetree.cb
index f3e453e089..e94fcb3993 100644
--- a/src/mainboard/lenovo/t430s/devicetree.cb
+++ b/src/mainboard/lenovo/t430s/devicetree.cb
@@ -13,7 +13,6 @@ chip northbridge/intel/sandybridge
 	register "gpu_panel_power_backlight_on_delay" = "2100"	# T3: 210ms
 	register "gpu_panel_power_backlight_off_delay" = "2100"	# T4: 210ms
 	register "gfx.use_spread_spectrum_clock" = "1"
-	register "gfx.lvds_dual_channel" = "1"
 	register "gfx.link_frequency_270_mhz" = "1"
 	register "gfx.lvds_num_lanes" = "1"
 	register "gpu_cpu_backlight" = "0x1155"
diff --git a/src/mainboard/lenovo/t520/devicetree.cb b/src/mainboard/lenovo/t520/devicetree.cb
index ff9745ef1c..d23a6486b7 100644
--- a/src/mainboard/lenovo/t520/devicetree.cb
+++ b/src/mainboard/lenovo/t520/devicetree.cb
@@ -14,7 +14,6 @@ chip northbridge/intel/sandybridge
 	register "gpu_panel_power_backlight_on_delay" = "2000"	# T3: 200ms
 	register "gpu_panel_power_backlight_off_delay" = "2000"	# T4: 200ms
 	register "gfx.use_spread_spectrum_clock" = "1"
-	register "gfx.lvds_dual_channel" = "1"
 	register "gfx.link_frequency_270_mhz" = "1"
 	register "gfx.lvds_num_lanes" = "4"
 	register "gpu_cpu_backlight" = "0x1155"
diff --git a/src/mainboard/lenovo/t530/devicetree.cb b/src/mainboard/lenovo/t530/devicetree.cb
index e1b22fdb84..1ead01cc0c 100644
--- a/src/mainboard/lenovo/t530/devicetree.cb
+++ b/src/mainboard/lenovo/t530/devicetree.cb
@@ -14,7 +14,6 @@ chip northbridge/intel/sandybridge
 	register "gpu_panel_power_backlight_on_delay" = "2000"	# T3: 200ms
 	register "gpu_panel_power_backlight_off_delay" = "2000"	# T4: 200ms
 	register "gfx.use_spread_spectrum_clock" = "1"
-	register "gfx.lvds_dual_channel" = "1"
 	register "gfx.link_frequency_270_mhz" = "1"
 	register "gfx.lvds_num_lanes" = "1"
 	register "gpu_cpu_backlight" = "0x1155"
diff --git a/src/mainboard/lenovo/x200/devicetree.cb b/src/mainboard/lenovo/x200/devicetree.cb
index cb4a021135..007141ca2e 100644
--- a/src/mainboard/lenovo/x200/devicetree.cb
+++ b/src/mainboard/lenovo/x200/devicetree.cb
@@ -4,7 +4,6 @@ chip northbridge/intel/gm45
 	register "gfx.did" = "{ 0x80000100, 0x80000240, 0x80000410, 0x80000410, 0x00000005 }"
 
 	register "gfx.use_spread_spectrum_clock" = "1"
-	register "gfx.lvds_dual_channel" = "0"
 	register "gfx.link_frequency_270_mhz" = "1"
 	register "gfx.lvds_num_lanes" = "4"
 
diff --git a/src/mainboard/lenovo/x201/devicetree.cb b/src/mainboard/lenovo/x201/devicetree.cb
index 8e9e0a1d32..0a42a53478 100644
--- a/src/mainboard/lenovo/x201/devicetree.cb
+++ b/src/mainboard/lenovo/x201/devicetree.cb
@@ -38,7 +38,6 @@ chip northbridge/intel/nehalem
 	register "gpu_cpu_backlight" = "0x58d"
 	register "gpu_pch_backlight" = "0x061a061a"
 	register "gfx.use_spread_spectrum_clock" = "1"
-	register "gfx.lvds_dual_channel" = "0"
 	register "gfx.link_frequency_270_mhz" = "1"
 	register "gfx.lvds_num_lanes" = "4"
 
diff --git a/src/mainboard/lenovo/x220/devicetree.cb b/src/mainboard/lenovo/x220/devicetree.cb
index 9c3aac661a..6e9054afcd 100644
--- a/src/mainboard/lenovo/x220/devicetree.cb
+++ b/src/mainboard/lenovo/x220/devicetree.cb
@@ -14,7 +14,6 @@ chip northbridge/intel/sandybridge
 	register "gpu_panel_power_backlight_on_delay" = "2000"	# T3: 200ms
 	register "gpu_panel_power_backlight_off_delay" = "2000"	# T4: 200ms
 	register "gfx.use_spread_spectrum_clock" = "1"
-	register "gfx.lvds_dual_channel" = "0"
 	register "gfx.link_frequency_270_mhz" = "1"
 	register "gfx.lvds_num_lanes" = "4"
 	register "gpu_cpu_backlight" = "0x1155"
diff --git a/src/mainboard/lenovo/x230/devicetree.cb b/src/mainboard/lenovo/x230/devicetree.cb
index 99db7dd35c..25367c80f7 100644
--- a/src/mainboard/lenovo/x230/devicetree.cb
+++ b/src/mainboard/lenovo/x230/devicetree.cb
@@ -14,7 +14,6 @@ chip northbridge/intel/sandybridge
 	register "gpu_panel_power_backlight_on_delay" = "2100"	# T3: 210ms
 	register "gpu_panel_power_backlight_off_delay" = "2100"	# T4: 210ms
 	register "gfx.use_spread_spectrum_clock" = "1"
-	register "gfx.lvds_dual_channel" = "0"
 	register "gfx.link_frequency_270_mhz" = "1"
 	register "gfx.lvds_num_lanes" = "1"
 	register "gpu_cpu_backlight" = "0x1155"
diff --git a/src/mainboard/lenovo/x60/devicetree.cb b/src/mainboard/lenovo/x60/devicetree.cb
index b20dde5c34..b4d11447a6 100644
--- a/src/mainboard/lenovo/x60/devicetree.cb
+++ b/src/mainboard/lenovo/x60/devicetree.cb
@@ -26,7 +26,6 @@ chip northbridge/intel/i945
 
 	register "gpu_hotplug" = "0x00000220"
 	register "gpu_lvds_use_spread_spectrum_clock" = "1"
-	register "gpu_lvds_is_dual_channel" = "0"
 	register "gpu_backlight" = "0x1290128"
 
 	device cpu_cluster 0 on