linux-kernel - [PATCH v3 8/8] arm64: dts: qcom: x1e80100-crd: Add charge limit nvmem

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Message-Id: <20250826-qcom_battmgr_update-v3-8-74ea410ef146@oss.qualcomm.com>
Date: Tue, 26 Aug 2025 15:18:35 +0800
From: Fenglin Wu via B4 Relay <devnull+fenglin.wu.oss.qualcomm.com@...nel.org>
To: Sebastian Reichel <sre@...nel.org>, 
 Bjorn Andersson <andersson@...nel.org>, 
 Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Heikki Krogerus <heikki.krogerus@...ux.intel.com>, 
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
 Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>, 
 Bryan O'Donoghue <bryan.odonoghue@...aro.org>, 
 Konrad Dybcio <konrad.dybcio@....qualcomm.com>
Cc: Subbaraman Narayanamurthy <subbaraman.narayanamurthy@....qualcomm.com>, 
 David Collins <david.collins@....qualcomm.com>, 
 György Kurucz <me@...uczgy.com>, linux-pm@...r.kernel.org, 
 linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org, 
 kernel@....qualcomm.com, devicetree@...r.kernel.org, 
 linux-usb@...r.kernel.org, Fenglin Wu <fenglin.wu@....qualcomm.com>
Subject: [PATCH v3 8/8] arm64: dts: qcom: x1e80100-crd: Add charge limit
 nvmem

From: Fenglin Wu <fenglin.wu@....qualcomm.com>

Add nvmem cells for getting charge control thresholds if they have
been set previously.

Signed-off-by: Fenglin Wu <fenglin.wu@....qualcomm.com>
---
 arch/arm64/boot/dts/qcom/x1-crd.dtsi         |  2 ++
 arch/arm64/boot/dts/qcom/x1e80100-pmics.dtsi | 20 ++++++++++++++++++++
 2 files changed, 22 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/x1-crd.dtsi b/arch/arm64/boot/dts/qcom/x1-crd.dtsi
index c9f0d505267081af66b0973fe6c1e33832a2c86b..8c3d30dd936ef9b12867971f5f237dd12484072d 100644
--- a/arch/arm64/boot/dts/qcom/x1-crd.dtsi
+++ b/arch/arm64/boot/dts/qcom/x1-crd.dtsi
@@ -82,6 +82,8 @@ pmic-glink {
 				    <&tlmm 123 GPIO_ACTIVE_HIGH>,
 				    <&tlmm 125 GPIO_ACTIVE_HIGH>;
 
+		nvmem-cells = <&charge_limit_en>, <&charge_limit_end>, <&charge_limit_delta>;
+		nvmem-cell-names = "charge_limit_en", "charge_limit_end", "charge_limit_delta";
 		/* Left-side rear port */
 		connector@0 {
 			compatible = "usb-c-connector";
diff --git a/arch/arm64/boot/dts/qcom/x1e80100-pmics.dtsi b/arch/arm64/boot/dts/qcom/x1e80100-pmics.dtsi
index c02fd4d15c9649c222caaafa5ed2c777a10fb4f5..abf7afe5127d7b8b572513234e00009ce837837d 100644
--- a/arch/arm64/boot/dts/qcom/x1e80100-pmics.dtsi
+++ b/arch/arm64/boot/dts/qcom/x1e80100-pmics.dtsi
@@ -239,6 +239,26 @@ reboot_reason: reboot-reason@48 {
 			};
 		};
 
+		pmk8550_sdam_15: nvram@...0 {
+			compatible = "qcom,spmi-sdam";
+			reg = <0x7e00>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges = <0 0x7e00 0x100>;
+
+			charge_limit_en: charge-limit-en@73 {
+				reg = <0x73 0x1>;
+			};
+
+			charge_limit_end: charge-limit-end@75 {
+				reg = <0x75 0x1>;
+			};
+
+			charge_limit_delta: charge-limit-delta@75 {
+				reg = <0x76 0x1>;
+			};
+		};
+
 		pmk8550_gpios: gpio@...0 {
 			compatible = "qcom,pmk8550-gpio", "qcom,spmi-gpio";
 			reg = <0xb800>;

-- 
2.34.1