From: Jishnu Prakash <jishnu.prakash@oss.qualcomm.com>
To: Bjorn Andersson <andersson@kernel.org>,
Konrad Dybcio <konradybcio@kernel.org>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>
Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org,
Kamal Wadhwa <kamal.wadhwa@oss.qualcomm.com>,
Rakesh Kota <rakesh.kota@oss.qualcomm.com>,
Jishnu Prakash <jishnu.prakash@oss.qualcomm.com>
Subject: [PATCH v2 1/4] arm64: dts: qcom: pm4125: Add VADC and temp alarm nodes
Date: Thu, 09 Jul 2026 15:14:02 +0530 [thread overview]
Message-ID: <20260709-shikra_adc_support-v2-1-8dda38f7bf3d@oss.qualcomm.com> (raw)
In-Reply-To: <20260709-shikra_adc_support-v2-0-8dda38f7bf3d@oss.qualcomm.com>
Add VADC node with some channels under it, for voltage and
temperature readings. Add temperature alarm node, used for
PMIC thermal mitigation.
Co-developed-by: Rakesh Kota <rakesh.kota@oss.qualcomm.com>
Signed-off-by: Rakesh Kota <rakesh.kota@oss.qualcomm.com>
Signed-off-by: Jishnu Prakash <jishnu.prakash@oss.qualcomm.com>
---
arch/arm64/boot/dts/qcom/pm4125.dtsi | 105 +++++++++++++++++++++++++++++++++++
1 file changed, 105 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/pm4125.dtsi b/arch/arm64/boot/dts/qcom/pm4125.dtsi
index 542e8fe030da..62f101fe5353 100644
--- a/arch/arm64/boot/dts/qcom/pm4125.dtsi
+++ b/arch/arm64/boot/dts/qcom/pm4125.dtsi
@@ -8,6 +8,36 @@
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/spmi/spmi.h>
+/ {
+ thermal-zones {
+ pm4125-thermal {
+ polling-delay-passive = <100>;
+ polling-delay = <0>;
+ thermal-sensors = <&pm4125_tz>;
+
+ trips {
+ pm4125_trip0: trip0 {
+ temperature = <105000>;
+ hysteresis = <0>;
+ type = "passive";
+ };
+
+ pm4125_trip1: trip1 {
+ temperature = <125000>;
+ hysteresis = <0>;
+ type = "hot";
+ };
+
+ pm4125_trip2: trip2 {
+ temperature = <155000>;
+ hysteresis = <0>;
+ type = "critical";
+ };
+ };
+ };
+ };
+};
+
&spmi_bus {
pmic@0 {
compatible = "qcom,pm2250", "qcom,spmi-pmic";
@@ -65,6 +95,81 @@ pm4125_typec: typec@1500 {
status = "disabled";
};
+ pm4125_tz: temp-alarm@2400 {
+ compatible = "qcom,spmi-temp-alarm";
+ reg = <0x2400>;
+ interrupts = <0x0 0x24 0x0 IRQ_TYPE_EDGE_BOTH>;
+ io-channels = <&pm4125_adc ADC5_DIE_TEMP>;
+ io-channel-names = "thermal";
+ #thermal-sensor-cells = <0>;
+ };
+
+ pm4125_adc: adc@3100 {
+ compatible = "qcom,spmi-adc5";
+ reg = <0x3100>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ #io-channel-cells = <1>;
+ interrupts = <0x0 0x31 0x0 IRQ_TYPE_EDGE_RISING>;
+
+ /* Channel nodes */
+ channel@0 {
+ reg = <ADC5_REF_GND>;
+ label = "ref_gnd";
+ qcom,pre-scaling = <1 1>;
+ };
+
+ channel@1 {
+ reg = <ADC5_1P25VREF>;
+ label = "vref_1p25";
+ qcom,pre-scaling = <1 1>;
+ };
+
+ channel@6 {
+ reg = <ADC5_DIE_TEMP>;
+ label = "die_temp";
+ qcom,pre-scaling = <1 1>;
+ };
+
+ channel@7 {
+ reg = <ADC5_USB_IN_I>;
+ label = "usb_in_i_uv";
+ qcom,pre-scaling = <1 1>;
+ };
+
+ channel@8 {
+ reg = <ADC5_USB_IN_V_16>;
+ label = "usb_in_v_div_16";
+ qcom,pre-scaling = <1 16>;
+ };
+
+ channel@9 {
+ reg = <ADC5_CHG_TEMP>;
+ label = "chg_temp";
+ qcom,pre-scaling = <1 1>;
+ };
+
+ channel@4b {
+ reg = <ADC5_BAT_ID_100K_PU>;
+ label = "bat_id";
+ qcom,ratiometric;
+ qcom,hw-settle-time = <200>;
+ qcom,pre-scaling = <1 1>;
+ };
+
+ channel@83 {
+ reg = <ADC5_VPH_PWR>;
+ label = "vph_pwr";
+ qcom,pre-scaling = <1 3>;
+ };
+
+ channel@84 {
+ reg = <ADC5_VBAT_SNS>;
+ label = "vbat_sns";
+ qcom,pre-scaling = <1 3>;
+ };
+ };
+
rtc@6000 {
compatible = "qcom,pm8941-rtc";
reg = <0x6000>, <0x6100>;
--
2.43.0
next prev parent reply other threads:[~2026-07-09 9:44 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-09 9:44 [PATCH v2 0/4] arm64: dts: qcom: Add PMIC thermal support for Shikra platforms Jishnu Prakash
2026-07-09 9:44 ` Jishnu Prakash [this message]
2026-07-09 13:13 ` [PATCH v2 1/4] arm64: dts: qcom: pm4125: Add VADC and temp alarm nodes Konrad Dybcio
2026-07-09 9:44 ` [PATCH v2 2/4] arm64: dts: qcom: pm8005: Add temp alarm node Jishnu Prakash
2026-07-09 13:14 ` Konrad Dybcio
2026-07-09 9:44 ` [PATCH v2 3/4] arm64: dts: qcom: Add PMIC thermal support for Shikra CQ2390M SoM platform Jishnu Prakash
2026-07-09 9:44 ` [PATCH v2 4/4] arm64: dts: qcom: Add PMIC thermal support for Shikra IQ2390S " Jishnu Prakash
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