linux-kernel - [PATCH v3 3/3] arch: arm64: dts: qcom: sdm845-starqltechn: fix max77705 interrupts

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Message-Id: <20250912-starqltechn-correct_max77705_nodes-v3-3-4ce9f694ecd9@gmail.com>
Date: Fri, 12 Sep 2025 19:47:03 +0300
From: Dzmitry Sankouski <dsankouski@...il.com>
To: Chanwoo Choi <cw00.choi@...sung.com>, 
 Krzysztof Kozlowski <krzk@...nel.org>, Lee Jones <lee@...nel.org>, 
 Rob Herring <robh@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
 Bjorn Andersson <andersson@...nel.org>, 
 Konrad Dybcio <konradybcio@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>
Cc: linux-kernel@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-arm-msm@...r.kernel.org, 
 Konrad Dybcio <konrad.dybcio@....qualcomm.com>, 
 Dzmitry Sankouski <dsankouski@...il.com>
Subject: [PATCH v3 3/3] arch: arm64: dts: qcom: sdm845-starqltechn: fix
 max77705 interrupts

Since max77705 has a register, which indicates interrupt source, it acts
as an interrupt controller.

Direct MAX77705's subdevices to use the IC's internal interrupt
controller, instead of listening to every interrupt fired by the
chip towards the host device.

Signed-off-by: Dzmitry Sankouski <dsankouski@...il.com>
---
Changes for v2:
- fix commit message to be more clear

Changes for v2:
- fix commit msg header prefix to 'arm64: dts: qcom: sdm845-starqltechn:'
- remove binding header for interrupt numbers
- make interrupt-cells 1, because irq trigger type is not used
---
 arch/arm64/boot/dts/qcom/sdm845-samsung-starqltechn.dts | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sdm845-samsung-starqltechn.dts b/arch/arm64/boot/dts/qcom/sdm845-samsung-starqltechn.dts
index 8a1e4c76914c..597e25d27d76 100644
--- a/arch/arm64/boot/dts/qcom/sdm845-samsung-starqltechn.dts
+++ b/arch/arm64/boot/dts/qcom/sdm845-samsung-starqltechn.dts
@@ -584,13 +584,15 @@ &uart9 {
 &i2c14 {
 	status = "okay";
 
-	pmic@66 {
+	max77705: pmic@66 {
 		compatible = "maxim,max77705";
 		reg = <0x66>;
 		interrupt-parent = <&pm8998_gpios>;
 		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
+		interrupt-controller;
 		pinctrl-0 = <&pmic_int_default>;
 		pinctrl-names = "default";
+		#interrupt-cells = <1>;
 
 		leds {
 			compatible = "maxim,max77705-rgb";
@@ -629,8 +631,8 @@ max77705_charger: charger@69 {
 		reg = <0x69>;
 		compatible = "maxim,max77705-charger";
 		monitored-battery = <&battery>;
-		interrupt-parent = <&pm8998_gpios>;
-		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
+		interrupt-parent = <&max77705>;
+		interrupts = <0>;
 	};
 
 	fuel-gauge@36 {
@@ -638,8 +640,8 @@ fuel-gauge@36 {
 		compatible = "maxim,max77705-battery";
 		power-supplies = <&max77705_charger>;
 		maxim,rsns-microohm = <5000>;
-		interrupt-parent = <&pm8998_gpios>;
-		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
+		interrupt-parent = <&max77705>;
+		interrupts = <2>;
 	};
 };
 

-- 
2.39.5