BBB and BBAI compatible relayCape DT overlay

src/arm/BBORG_RELAY-00A2.dts

@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2020 Deepak Khatri <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+/dts-v1/;
+/plugin/;
+
+/*
+ * Helper to show loaded overlays under: /proc/device-tree/chosen/overlays/
+ */
+&{/chosen} {
+ overlays {
+ BBORG_RELAY-00A2 = __TIMESTAMP__;
+ };
+};
+
+/*
+ * Free up the pins used by the cape from the pinmux helpers.
+ */
+&ocp {
+ P9_41_pinmux { status = "disabled"; };
+ P9_42_pinmux { status = "disabled"; };
+ P9_30_pinmux { status = "disabled"; };
+ P9_27_pinmux { status = "disabled"; };
+};
+
+/*
+ * Enable and Update the default state of the pins
+ */
+&ocp {
+ P9_41_pinmux { status = "okay"; pinctrl-0 = <&P9_41_gpio_pin>;};
+ P9_42_pinmux { status = "okay"; pinctrl-0 = <&P9_42_gpio_pin>;};
+ P9_30_pinmux { status = "okay"; pinctrl-0 = <&P9_30_gpio_pin>;};
+ P9_27_pinmux { status = "okay"; pinctrl-0 = <&P9_27_gpio_pin>;};
+};
+
+/*
+ * Easy realy control through sysfs (/sys/class/leds/) using gpio-leds driver
+ * See these files for the led_P8_#/led_P9_# definition
+ * https://github.com/beagleboard/BeagleBoard-DeviceTrees/src/arm/bbai-bone-buses.dtsi
+ * https://github.com/beagleboard/BeagleBoard-DeviceTrees/src/arm/bbb-bone-buses.dtsi
+ * 
+ */
+&{/} {
+ leds {
+ led_P9_41{
+ status = "okay";
+ label = "relay1";
+ default-state = "keep";
+ };
+
+ led_P9_42{
+ status = "okay";
+ label = "relay2";
+ default-state = "keep";
+ };
+
+ led_P9_30{
+ status = "okay";
+ label = "relay3";
+ default-state = "keep";
+ };
+
+ led_P9_27{
+ status = "okay";
+ label = "relay4";
+ default-state = "keep";
+ };
+ };
+};