linux-kernel - [PATCH] ARM: dts: sun8i-h2-plus-bananapi-m2-zero: add gpio-poweroff to DT

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Date:   Mon, 23 Nov 2020 17:10:41 +0100
From:   Michael Klein <michael@...sekall.de>
To:     Rob Herring <robh+dt@...nel.org>,
        Maxime Ripard <mripard@...nel.org>,
        Chen-Yu Tsai <wens@...e.org>
Cc:     devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, Michael Klein <michael@...sekall.de>
Subject: [PATCH] ARM: dts: sun8i-h2-plus-bananapi-m2-zero: add gpio-poweroff to DT

Add gpio-poweroff node to allow the board to power itself off after
shutdown by disabling the SYSTEM and CPUX regulators (U5 resp. U6).
The RST button can be used to restart the board.

Signed-off-by: Michael Klein <michael@...sekall.de>
---
 arch/arm/boot/dts/sun8i-h2-plus-bananapi-m2-zero.dts | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm/boot/dts/sun8i-h2-plus-bananapi-m2-zero.dts b/arch/arm/boot/dts/sun8i-h2-plus-bananapi-m2-zero.dts
index 4c6704e4c57e..76e79e6db733 100644
--- a/arch/arm/boot/dts/sun8i-h2-plus-bananapi-m2-zero.dts
+++ b/arch/arm/boot/dts/sun8i-h2-plus-bananapi-m2-zero.dts
@@ -46,6 +46,11 @@ sw4 {
 		};
 	};
 
+	gpio_poweroff {
+		compatible = "gpio-poweroff";
+		gpios = <&r_pio 0 8 GPIO_ACTIVE_LOW>; /* PL8 */
+	};
+
 	reg_vdd_cpux: vdd-cpux-regulator {
 		compatible = "regulator-gpio";
 		regulator-name = "vdd-cpux";
-- 
2.29.2