Linux Tegra architecture development
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From: Shubhi Garg <shgarg@nvidia.com>
To: Lee Jones <lee@kernel.org>, Rob Herring <robh@kernel.org>,
	"Krzysztof Kozlowski" <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	"Catalin Marinas" <catalin.marinas@arm.com>,
	Will Deacon <will@kernel.org>,
	"Alexandre Belloni" <alexandre.belloni@bootlin.com>,
	Jonathan Hunter <jonathanh@nvidia.com>
Cc: <devicetree@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<linux-rtc@vger.kernel.org>, <linux-tegra@vger.kernel.org>,
	Shubhi Garg <shgarg@nvidia.com>
Subject: [PATCH v7 2/4] arm64: tegra: Add device-tree node for NVVRS RTC
Date: Tue, 7 Oct 2025 13:57:36 +0000	[thread overview]
Message-ID: <20251007135738.487694-3-shgarg@nvidia.com> (raw)
In-Reply-To: <20251007135738.487694-1-shgarg@nvidia.com>

Add NVIDIA VRS (Voltage Regulator Specification) RTC device tree node for
Tegra234 P3701 and P3767 platforms. Assign VRS RTC as primary RTC (rtc0).

Signed-off-by: Shubhi Garg <shgarg@nvidia.com>
---

v7:
- no changes

v6:
- compatible name fixes to "nvidia,vrs-10"
- changed dtb node name to pmic@3c

v5:
- changed dtb node name to rtc@3c

v4:
- fixed device tree node name to "pmic@3c" in aliases

v3:
- fixed device tree node name to generic "pmic@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..58bf55c0e414 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@0/mmc@3460000";
 		mmc1 = "/bus@0/mmc@3400000";
+		rtc0 = "/bpmp/i2c/pmic@3c";
 	};
 
 	bus@0 {
@@ -170,6 +171,16 @@ bpmp {
 		i2c {
 			status = "okay";
 
+			pmic@3c {
+				compatible = "nvidia,vrs-10";
+				reg = <0x3c>;
+				interrupt-parent = <&pmc>;
+				/* VRS Wake ID is 24 */
+				interrupts = <24 IRQ_TYPE_LEVEL_LOW>;
+				interrupt-controller;
+				#interrupt-cells = <2>;
+			};
+
 			thermal-sensor@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..ab391a71c3d3 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@0/mmc@3400000";
+		rtc0 = "/bpmp/i2c/pmic@3c";
 	};
 
 	bus@0 {
@@ -121,6 +122,20 @@ pmc@c360000 {
 		};
 	};
 
+	bpmp {
+		i2c {
+			pmic@3c {
+				compatible = "nvidia,vrs-10";
+				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


  parent reply	other threads:[~2025-10-07 13:58 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-10-07 13:57 [PATCH v7 0/4] Add NVIDIA VRS RTC support Shubhi Garg
2025-10-07 13:57 ` [PATCH v7 1/4] dt-bindings: rtc: Document NVIDIA VRS RTC Shubhi Garg
2025-10-10 14:32   ` Rob Herring (Arm)
2025-10-07 13:57 ` Shubhi Garg [this message]
2025-10-07 13:57 ` [PATCH v7 3/4] rtc: nvvrs: add NVIDIA VRS RTC device driver Shubhi Garg
2025-10-07 13:57 ` [PATCH v7 4/4] arm64: defconfig: enable NVIDIA VRS PSEQ RTC Shubhi Garg
2025-10-28  7:09 ` [PATCH v7 0/4] Add NVIDIA VRS RTC support Shubhi Garg
2025-10-29 12:49 ` Jon Hunter
2025-11-06 10:04   ` Jon Hunter
2025-11-06 22:56 ` (subset) " Alexandre Belloni

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