The X-Powers AXP209 PMIC exposes battery supply various data such as
the battery status (charging, discharging, full, dead), current max
limit, current current, battery capacity (in percentage), voltage max
and min limits, current voltage, and battery capacity (in Ah).

This adds the battery power supply subnode for AXP20X PMIC.

Signed-off-by: Quentin Schulz <redacted>
---
 arch/arm/boot/dts/axp209.dtsi | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm/boot/dts/axp209.dtsi b/arch/arm/boot/dts/axp209.dtsi
index 1bfdc85..9ed2dd2 100644
--- a/arch/arm/boot/dts/axp209.dtsi
+++ b/arch/arm/boot/dts/axp209.dtsi

@@ -71,6 +71,13 @@
 		#gpio-cells = <2>;
 	};
 
+	battery_power_supply: battery_power_supply {
+		compatible = "x-powers,axp209-battery-power-supply";
+		io-channels = <&axp209_adc 7>, <&axp209_adc 8>, <&axp209_adc 9>;
+		io-channel-names = "batt_v", "batt_chrg_i", "batt_dischrg_i";
+		status = "disabled";
+	};
+
 	regulators {
 		/* Default work frequency for buck regulators */
 		x-powers,dcdc-freq = <1500>;

-- 
2.9.3