linux-kernel - [PATCH] arm64: dts: allwinner: sun55i: Complete AXP717A sub-functions

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [day] [month] [year] [list]
Message-Id: <20250913173511.4064176-1-wens@kernel.org>
Date: Sun, 14 Sep 2025 01:35:11 +0800
From: Chen-Yu Tsai <wens@...nel.org>
To: Chen-Yu Tsai <wens@...e.org>,
	Jernej Skrabec <jernej@...nel.org>,
	Samuel Holland <samuel@...lland.org>,
	Andre Przywara <andre.przywara@....com>
Cc: linux-sunxi@...ts.linux.dev,
	devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] arm64: dts: allwinner: sun55i: Complete AXP717A sub-functions

From: Chen-Yu Tsai <wens@...e.org>

When the AXP717A PMIC is missing nodes for the sub-functions, the kernel
complains about not found nodes.

Add all the remaining nodes corresponding to the defined functions for
the dev boards, which have publicly available schematics to base this
change on. The battery charger on all of them are disabled. Also add
an "iio-hwmon" node to express some of the ADC channels as hwmon
sensors.

Signed-off-by: Chen-Yu Tsai <wens@...e.org>
---
 .../dts/allwinner/sun55i-a527-cubie-a5e.dts   | 21 +++++++++++++++++
 .../dts/allwinner/sun55i-t527-avaota-a1.dts   | 23 +++++++++++++++++++
 .../dts/allwinner/sun55i-t527-orangepi-4a.dts | 23 +++++++++++++++++++
 3 files changed, 67 insertions(+)

diff --git a/arch/arm64/boot/dts/allwinner/sun55i-a527-cubie-a5e.dts b/arch/arm64/boot/dts/allwinner/sun55i-a527-cubie-a5e.dts
index d3c12a0854b4..e333bbaf01d3 100644
--- a/arch/arm64/boot/dts/allwinner/sun55i-a527-cubie-a5e.dts
+++ b/arch/arm64/boot/dts/allwinner/sun55i-a527-cubie-a5e.dts
@@ -42,6 +42,12 @@ use-led {
 		};
 	};
 
+	iio-hwmon {
+		compatible = "iio-hwmon";
+		io-channels = <&axp717_adc 3>, /* vsys_v */
+			      <&axp717_adc 4>; /* pmic_temp */
+	};
+
 	reg_vcc5v: vcc5v {
 		/* board wide 5V supply from the USB-C connector */
 		compatible = "regulator-fixed";
@@ -171,6 +177,17 @@ axp717: pmic@34 {
 		bldoin-supply = <&reg_vcc5v>;
 		cldoin-supply = <&reg_vcc5v>;
 
+		axp717_adc: adc {
+			compatible = "x-powers,axp717-adc";
+			#io-channel-cells = <1>;
+		};
+
+		battery-power {
+			compatible = "x-powers,axp717-battery-power-supply";
+			/* charger mode design but has no battery terminal */
+			status = "disabled";
+		};
+
 		regulators {
 			/* Supplies the "little" cluster (1.4 GHz cores) */
 			reg_dcdc1: dcdc1 {
@@ -276,6 +293,10 @@ reg_cpusldo: cpusldo {
 				regulator-name = "vdd-cpus";
 			};
 		};
+
+		usb-power {
+			compatible = "x-powers,axp717-usb-power-supply";
+		};
 	};
 
 	axp323: pmic@36 {
diff --git a/arch/arm64/boot/dts/allwinner/sun55i-t527-avaota-a1.dts b/arch/arm64/boot/dts/allwinner/sun55i-t527-avaota-a1.dts
index 7e3d71505744..054d0357c139 100644
--- a/arch/arm64/boot/dts/allwinner/sun55i-t527-avaota-a1.dts
+++ b/arch/arm64/boot/dts/allwinner/sun55i-t527-avaota-a1.dts
@@ -28,6 +28,12 @@ ext_osc32k: ext-osc32k-clk {
 		clock-output-names = "ext_osc32k";
 	};
 
+	iio-hwmon {
+		compatible = "iio-hwmon";
+		io-channels = <&axp717_adc 3>, /* vsys_v */
+			      <&axp717_adc 4>; /* pmic_temp */
+	};
+
 	reg_vcc12v: vcc12v {
 		/* DC input jack */
 		compatible = "regulator-fixed";
@@ -171,6 +177,17 @@ axp717: pmic@35 {
 		bldoin-supply = <&reg_vcc5v>;
 		cldoin-supply = <&reg_vcc5v>;
 
+		axp717_adc: adc {
+			compatible = "x-powers,axp717-adc";
+			#io-channel-cells = <1>;
+		};
+
+		battery-power {
+			compatible = "x-powers,axp717-battery-power-supply";
+			/* no battery; output used for dcdc4 instead */
+			status = "disabled";
+		};
+
 		regulators {
 			/* Supplies the "little" cluster (1.4 GHz cores) */
 			reg_dcdc1: dcdc1 {
@@ -277,6 +294,12 @@ reg_cpusldo: cpusldo {
 				regulator-name = "vdd-cpus";
 			};
 		};
+
+		usb-power {
+			compatible = "x-powers,axp717-usb-power-supply";
+			/* 12V-5V buck converter can supply up to 5A */
+			input-current-limit-microamp = <3250000>;
+		};
 	};
 
 	axp323: pmic@36 {
diff --git a/arch/arm64/boot/dts/allwinner/sun55i-t527-orangepi-4a.dts b/arch/arm64/boot/dts/allwinner/sun55i-t527-orangepi-4a.dts
index 0a611caa5465..f71860db83d3 100644
--- a/arch/arm64/boot/dts/allwinner/sun55i-t527-orangepi-4a.dts
+++ b/arch/arm64/boot/dts/allwinner/sun55i-t527-orangepi-4a.dts
@@ -41,6 +41,13 @@ led {
 		};
 	};
 
+	iio-hwmon {
+		compatible = "iio-hwmon";
+		io-channels = <&axp717_adc 3>, /* vsys_v */
+			      <&axp717_adc 4>, /* pmic_temp */
+			      <&axp717_adc 7>; /* bkup_batt_v */
+	};
+
 	wifi_pwrseq: pwrseq {
 		compatible = "mmc-pwrseq-simple";
 		reset-gpios = <&r_pio 1 1 GPIO_ACTIVE_LOW>; /* PM1 */
@@ -198,6 +205,17 @@ axp717: pmic@35 {
 		bldoin-supply = <&reg_vcc5v>;
 		cldoin-supply = <&reg_vcc5v>;
 
+		axp717_adc: adc {
+			compatible = "x-powers,axp717-adc";
+			#io-channel-cells = <1>;
+		};
+
+		battery-power {
+			compatible = "x-powers,axp717-battery-power-supply";
+			/* no battery; output used for dcdc4 instead */
+			status = "disabled";
+		};
+
 		regulators {
 			/* Supplies the "little" cluster (1.4 GHz cores) */
 			reg_dcdc1: dcdc1 {
@@ -312,6 +330,11 @@ reg_cpusldo: cpusldo {
 				regulator-name = "vdd-cpus-usb-0v9";
 			};
 		};
+
+		usb-power {
+			compatible = "x-powers,axp717-usb-power-supply";
+			input-current-limit-microamp = <3000000>;
+		};
 	};
 
 	axp323: pmic@36 {
-- 
2.39.5