linux-kernel - [PATCH v2 3/4] arm64: dts: imx8mn: Add SNVS LPGPR

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Message-ID: <20251229193706.73564-3-marex@nabladev.com>
Date: Mon, 29 Dec 2025 20:36:42 +0100
From: Marek Vasut <marex@...ladev.com>
To: linux-arm-kernel@...ts.infradead.org
Cc: Marek Vasut <marex@...ladev.com>,
	Christian Eggers <ceggers@...i.de>,
	Conor Dooley <conor+dt@...nel.org>,
	Fabio Estevam <festevam@...il.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Markus Heidelberg <m.heidelberg@....de>,
	Rob Herring <robh@...nel.org>,
	Shawn Guo <shawnguo@...nel.org>,
	devicetree@...r.kernel.org,
	imx@...ts.linux.dev,
	linux-kernel@...r.kernel.org
Subject: [PATCH v2 3/4] arm64: dts: imx8mn: Add SNVS LPGPR

Add SNVS LPGPR bindings to MX8M Nano, the LPGPR is used to store
boot counter.

Signed-off-by: Marek Vasut <marex@...ladev.com>
---
Cc: Christian Eggers <ceggers@...i.de>
Cc: Conor Dooley <conor+dt@...nel.org>
Cc: Fabio Estevam <festevam@...il.com>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Krzysztof Kozlowski <krzk+dt@...nel.org>
Cc: Markus Heidelberg <m.heidelberg@....de>
Cc: Rob Herring <robh@...nel.org>
Cc: Shawn Guo <shawnguo@...nel.org>
Cc: devicetree@...r.kernel.org
Cc: imx@...ts.linux.dev
Cc: linux-arm-kernel@...ts.infradead.org
Cc: linux-kernel@...r.kernel.org
---
V2: New patch
---
 arch/arm64/boot/dts/freescale/imx8mn.dtsi | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mn.dtsi b/arch/arm64/boot/dts/freescale/imx8mn.dtsi
index b98b3d0ddf25a..3199bc0966b03 100644
--- a/arch/arm64/boot/dts/freescale/imx8mn.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mn.dtsi
@@ -628,6 +628,11 @@ snvs_pwrkey: snvs-powerkey {
 					wakeup-source;
 					status = "disabled";
 				};
+
+				snvs_lpgpr: snvs-lpgpr {
+					compatible = "fsl,imx8mn-snvs-lpgpr",
+						     "fsl,imx7d-snvs-lpgpr";
+				};
 			};
 
 			clk: clock-controller@...80000 {
-- 
2.51.0