Relay for Real

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Copyright (C) 2015 Robert Nelson
 * Copyright (C) 2019 Amilcar Lucas
 */

/dts-v1/;
/plugin/;

#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/pinctrl/am33xx.h>

/*
 * Helper to show loaded overlays under: /proc/device-tree/chosen/overlays/
 */
&{/chosen} {
        overlays {
                BBORG_RELAY-00A2.kernel = __TIMESTAMP__;
        };
};

/*
 * Free up the pins used by the cape from the pinmux helpers.
 */
&ocp {
        P9_41_pinmux { status = "disabled"; };  /* P9_41: gpmc_a0.gpio0_20 */
        P9_42_pinmux { status = "disabled"; };  /* P9_42: gpmc_a1.gpio0_07 */
        P9_30_pinmux { status = "disabled"; };  /* P9_30: gpmc_be1n.gpio3_16 */
        P9_27_pinmux { status = "disabled"; };  /* P9_27: mcasp0_fsr.gpio3_19 */
};

&am33xx_pinmux {
        bb_gpio_relay_pins: pinmux_bb_gpio_relay_pins {
                pinctrl-single,pins = <
                        0x1B4 (PIN_OUTPUT_PULLDOWN | MUX_MODE7) /* P9_41: gpmc_a0.gpio0_20 */
                        0x164 (PIN_OUTPUT_PULLDOWN | MUX_MODE7) /* P9_42: gpmc_a1.gpio0_07 */
                        0x198 (PIN_OUTPUT_PULLDOWN | MUX_MODE7) /* P9_30: gpmc_be1n.gpio3_16 */
                        0x1A4 (PIN_OUTPUT_PULLDOWN | MUX_MODE7) /* P9_27: mcasp0_fsr.gpio3_19 */
                >;
        };
};

&{/} {
        leds {
                pinctrl-names = "default";
                pinctrl-0 = <&bb_gpio_relay_pins>;

                compatible = "gpio-leds";

        jp@1 {
            label = "relay-jp1";
            gpios = <&gpio0 20 GPIO_ACTIVE_HIGH>;
            default-state = "keep";
        };

        jp@2 {
            label = "relay-jp2";
            gpios = <&gpio0 07 GPIO_ACTIVE_HIGH>;
            default-state = "keep";
        };

        jp@3 {
            label = "relay-jp3";
            gpios = <&gpio3 16 GPIO_ACTIVE_HIGH>;
            default-state = "keep";
        };

        jp@4 {
            label = "relay-jp4";
            gpios = <&gpio3 19 GPIO_ACTIVE_HIGH>;
            default-state = "keep";
        };
        };
};