From:   Prashant Malani <pmalani@chromium.org>
To:     linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org
Cc:     Prashant Malani <pmalani@chromium.org>,
        Alexandru M Stan <amstan@chromium.org>,
        Benson Leung <bleung@chromium.org>,
        devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND FLATTENED
        DEVICE TREE BINDINGS),
        linux-arm-kernel@lists.infradead.org (moderated list:ARM/Mediatek SoC
        support), Matthias Brugger <matthias.bgg@gmail.com>,
        Rob Herring <robh+dt@kernel.org>
Subject: [PATCH v2] arm64: dts: mt8183: kukui: Add Type C node
Date:   Thu,  9 Dec 2021 11:51:12 -0800
Message-Id: <20211209195112.366176-1-pmalani@chromium.org>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

Add a node describing the USB Type C connector, in order to utilize the
Chromium OS USB Type-C driver that enumerates Type-C ports and connected
cables/peripherals and makes them visible to userspace.

Cc: Alexandru M Stan <amstan@chromium.org>
Cc: Benson Leung <bleung@chromium.org>
Signed-off-by: Prashant Malani <pmalani@chromium.org>
---

Changes in v2:
- Alexandru mentioned that HW specs suggest preferred power role for
  devices like kukui to be sink, so changed try-power-role to "sink".

 arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi b/arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi
index 94c13c459194..0f9480f91261 100644
--- a/arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi
@@ -886,6 +886,20 @@ usbc_extcon: extcon0 {
 		cbas {
 			compatible = "google,cros-cbas";
 		};
+
+		typec {
+			compatible = "google,cros-ec-typec";
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			usb_c0: connector@0 {
+				compatible = "usb-c-connector";
+				reg = <0>;
+				power-role = "dual";
+				data-role = "host";
+				try-power-role = "sink";
+			};
+		};
 	};
 };
 
-- 
2.34.1.173.g76aa8bc2d0-goog