linux-kernel - [PATCH v2] ARM: dts: sun8i-h2-plus-bananapi-m2-zero: add poweroff node to DT

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Date:   Tue, 24 Nov 2020 14:36:33 +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 v2] ARM: dts: sun8i-h2-plus-bananapi-m2-zero: add poweroff node to DT

Add 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..ea2fa48a1647 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 {
 		};
 	};
 
+	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