John Zhao has uploaded this change for review.

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ec/google/chromeec: Add support for USB Type-C alternate mode control

PMC mux control can be used for swapping the USB data role and for
setting connector to act in alternate modes.

BUG=b:151646486
BRANCH=None
TEST=Verify USB Type-C alternate mode (DP or TBT) along with PMC mux
control.

Change-Id: I8c872537d9c633f8eb4238fd9b023577c4570a5a
Signed-off-by: John Zhao <john.zhao@intel.com>
---
M src/ec/google/chromeec/acpi/cros_ec.asl
1 file changed, 113 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/24/40424/1

diff --git a/src/ec/google/chromeec/acpi/cros_ec.asl b/src/ec/google/chromeec/acpi/cros_ec.asl
index 3e9b773..a8d859f 100644
--- a/src/ec/google/chromeec/acpi/cros_ec.asl
+++ b/src/ec/google/chromeec/acpi/cros_ec.asl
@@ -56,4 +56,117 @@
 	{
 		Return (0xB)
 	}
+
+	Device (USBC)
+	{
+		Name (_HID, "GOOG0014")
+		Name (_DDN, "ChromeOS Embedded Controller USB Type-C Control")
+
+		/*
+		 * Each connector shall have its own ACPI device entry
+		 * (node), under the actual interface device.
+		 */
+		Device (CON0)
+		{
+			Name (_ADR, 0)
+			Name (_DSD, Package () {
+				ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
+				Package() {
+					Package () { "usb-role-switch",
+						 \_SB.PCI0.PMC.MUX.CON0 },
+					Package () { "mode-switch",
+						 \_SB.PCI0.PMC.MUX.CON0 },
+					Package () { "orientation-switch",
+						 \_SB.PCI0.PMC.MUX.CON0 },
+					Package () { "power-role", "dual" },
+					Package () { "data-role", "dual" },
+				}
+			})
+
+			/*
+			 * Each supported alternate mode. Use _STA() to disable/enable
+			 * them.
+			 */
+
+			/* Thunderbolt 3 alternate mode */
+			Device (TBT3)
+			{
+				Name (_ADR, 0)
+
+				Name (_DSD, Package () {
+					ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
+					Package() {
+						Package () { "svid", 0x8087 },
+						Package () { "vdo", 1 },
+					}
+				})
+
+				Method (_STA, 0, NotSerialized)
+				{
+					Return (0x0F)
+				}
+			}
+
+			/* Display Port alternate mode */
+			Device (DP)
+			{
+				Name (_ADR, 1)
+				Name (_DSD, Package () {
+					ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
+					Package() {
+						Package () { "svid", 0xff01 },
+						Package () { "vdo", 0x1c46 },
+					}
+				})
+			}
+		}
+
+		Device (CON1)
+		{
+			Name (_ADR, 1)
+			Name (_DSD, Package () {
+				ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
+				Package() {
+					Package () { "usb-role-switch",
+						 \_SB.PCI0.PMC.MUX.CON1 },
+					Package () { "mode-switch",
+						 \_SB.PCI0.PMC.MUX.CON1 },
+					Package () { "orientation-switch",
+						 \_SB.PCI0.PMC.MUX.CON1 },
+					Package () { "power-role", "dual" },
+					Package () { "data-role", "dual" },
+				},
+			})
+
+			Device (TBT3)
+			{
+				Name (_ADR, 0)
+
+				Name (_DSD, Package () {
+					ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
+					Package() {
+						Package () {"svid", 0x8087},
+						Package () {"vdo", 1},
+					}
+				})
+
+				Method (_STA, 0, NotSerialized)
+				{
+					Return (0x0F)
+				}
+			}
+
+			Device (DP)
+			{
+				Name (_ADR, 1)
+				Name (_DSD, Package () {
+					ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
+					Package() {
+						Package () { "svid", 0xff01 },
+						Package () { "vdo", 0x1c46 },
+					}
+				})
+			}
+		}
+	}
 }

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