[PATCH v3 2/6] arm64: tegra: Add device-tree node for NVVRS PSEQ
Shubhi Garg
shgarg at nvidia.com
Wed Jun 11 00:34:50 PDT 2025
Add NVIDIA VRS Power Sequencer device tree node for Tegra234 P3701 and
P3767 platforms. Assign VRS RTC as primary RTC (rtc0).
Signed-off-by: Shubhi Garg <shgarg at nvidia.com>
---
v3:
- fixed device tree node name to generic "pmic at 3c"
v2:
- added alias to assign VRS RTC to rtc0
- removed status node from VRS DTB node
arch/arm64/boot/dts/nvidia/tegra234-p3701.dtsi | 11 +++++++++++
arch/arm64/boot/dts/nvidia/tegra234-p3767.dtsi | 15 +++++++++++++++
2 files changed, 26 insertions(+)
diff --git a/arch/arm64/boot/dts/nvidia/tegra234-p3701.dtsi b/arch/arm64/boot/dts/nvidia/tegra234-p3701.dtsi
index 9086a0d010e5..f03785cd23bb 100644
--- a/arch/arm64/boot/dts/nvidia/tegra234-p3701.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra234-p3701.dtsi
@@ -8,6 +8,7 @@ / {
aliases {
mmc0 = "/bus at 0/mmc at 3460000";
mmc1 = "/bus at 0/mmc at 3400000";
+ rtc0 = "/bpmp/i2c/vrs at 3c";
};
bus at 0 {
@@ -170,6 +171,16 @@ bpmp {
i2c {
status = "okay";
+ pmic at 3c {
+ compatible = "nvidia,vrs-pseq";
+ reg = <0x3c>;
+ interrupt-parent = <&pmc>;
+ /* VRS Wake ID is 24 */
+ interrupts = <24 IRQ_TYPE_LEVEL_LOW>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
thermal-sensor at 4c {
compatible = "ti,tmp451";
status = "okay";
diff --git a/arch/arm64/boot/dts/nvidia/tegra234-p3767.dtsi b/arch/arm64/boot/dts/nvidia/tegra234-p3767.dtsi
index 84db7132e8fc..877c5c1bf9f2 100644
--- a/arch/arm64/boot/dts/nvidia/tegra234-p3767.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra234-p3767.dtsi
@@ -7,6 +7,7 @@ / {
aliases {
mmc0 = "/bus at 0/mmc at 3400000";
+ rtc0 = "/bpmp/i2c/vrs at 3c";
};
bus at 0 {
@@ -121,6 +122,20 @@ pmc at c360000 {
};
};
+ bpmp {
+ i2c {
+ pmic at 3c {
+ compatible = "nvidia,vrs-pseq";
+ reg = <0x3c>;
+ interrupt-parent = <&pmc>;
+ /* VRS Wake ID is 24 */
+ interrupts = <24 IRQ_TYPE_LEVEL_LOW>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+ };
+ };
+
vdd_5v0_sys: regulator-vdd-5v0-sys {
compatible = "regulator-fixed";
regulator-name = "VDD_5V0_SYS";
--
2.43.0
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