linux-kernel - [PATCH 3/3] ARM: dts: imx: imx50-kobo-aura: add description for battery

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Message-Id: <20251227-kobo-aura-battery-v1-3-328a90ef5122@jm0.eu>
Date: Sat, 27 Dec 2025 17:28:15 +0100
From: Josua Mayer <josua.mayer@....eu>
To: Jonathan Neuschäfer <j.neuschaefer@....net>, 
 Lee Jones <lee@...nel.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Sebastian Reichel <sre@...nel.org>, 
 Shawn Guo <shawnguo@...nel.org>, Sascha Hauer <s.hauer@...gutronix.de>, 
 Pengutronix Kernel Team <kernel@...gutronix.de>, 
 Fabio Estevam <festevam@...il.com>
Cc: Andreas Kemnade <andreas@...nade.info>, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org, imx@...ts.linux.dev, 
 linux-arm-kernel@...ts.infradead.org, Josua Mayer <josua.mayer@....eu>
Subject: [PATCH 3/3] ARM: dts: imx: imx50-kobo-aura: add description for
 battery

Kobo Aura has a rechargable battery that is monitored by the embedded
controller.

Battery markings: PR-285083 3.7V Typ. 1500mAh; 575327416288 5.55Wh.

Add description for this battery and link it for monitoring by the
embedded controller.

Signed-off-by: Josua Mayer <josua.mayer@....eu>
---
 arch/arm/boot/dts/nxp/imx/imx50-kobo-aura.dts | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/arm/boot/dts/nxp/imx/imx50-kobo-aura.dts b/arch/arm/boot/dts/nxp/imx/imx50-kobo-aura.dts
index b1a6a9c58ac33..dc8d9fd45cd23 100644
--- a/arch/arm/boot/dts/nxp/imx/imx50-kobo-aura.dts
+++ b/arch/arm/boot/dts/nxp/imx/imx50-kobo-aura.dts
@@ -16,6 +16,14 @@ chosen {
 		stdout-path = "serial1:115200n8";
 	};
 
+	battery: battery {
+		compatible = "simple-battery";
+		voltage-min-design-microvolt = <3400000>;
+		voltage-max-design-microvolt = <4100000>;
+		energy-full-design-microwatt-hours = <5550000>;
+		charge-full-design-microamp-hours = <1500000>;
+	};
+
 	memory@...00000 {
 		device_type = "memory";
 		reg = <0x70000000 0x10000000>;
@@ -151,6 +159,7 @@ embedded-controller@43 {
 		system-power-controller;
 		interrupts-extended = <&gpio4 11 IRQ_TYPE_EDGE_FALLING>;
 		#pwm-cells = <2>;
+		monitored-battery = <&battery>;
 	};
 };
 

-- 
2.51.0