ev11l78a: add en_sink as a custom binding.

This exposes the EN_SINK signal as a custom binding, since it is ore to the business logic of the board. EN_SINK is a GPIO line connected to a MOSFET that provides power on the screw terminal of the board, and should be enabled after USB-PD negotiation. Signed-off-by: Diego Elio Pettenò <[email protected]>
zephyrproject-rtos · Sep 10, 2023 · 181f087 · 181f087
1 parent 637e986
commit 181f087
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diff --git a/boards/arm/ev11l78a/dts/bindings/microchip,ev11l78a-ensink.yaml b/boards/arm/ev11l78a/dts/bindings/microchip,ev11l78a-ensink.yaml
@@ -0,0 +1,13 @@
+# Copyright (c) 2023, Meta Platforms, Inc. and its affiliates.
+# SPDX-License-Identifier: Apache-2.0
+
+description: GPIO used to enable the power Sink on the EV11L78A board
+
+compatible: "microchip,ev11l78a-ensink"
+
+properties:
+  gpios:
+    type: phandle-array
+    required: true
+    description: |
+      GPIO to enable the power sink on the EV11L78A board, output.
diff --git a/boards/arm/ev11l78a/ev11l78a.dts b/boards/arm/ev11l78a/ev11l78a.dts
@@ -43,6 +43,11 @@
 		sense-gain-mult = <100>;
 	};
 
+	enable_sink: enable_sink {
+		compatible = "microchip,ev11l78a-ensink";
+		gpios = <&porta 22 GPIO_ACTIVE_HIGH>;
+	};
+
 };
 
 &cpu0 {