linux-kernel - [PATCH 9/9] arm64: dts: imx8mn-bsh-smm-s2-common: Disable PMIC SNVS reset target state

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Message-ID: <20250514082507.1983849-10-dario.binacchi@amarulasolutions.com>
Date: Wed, 14 May 2025 10:25:03 +0200
From: Dario Binacchi <dario.binacchi@...rulasolutions.com>
To: linux-kernel@...r.kernel.org
Cc: Simon Holesch <simon.holesch@...g.com>,
	Karthikdatt Anantharamrao <karthikdatt.anantharamrao@...bosch.com>,
	michael@...rulasolutions.com,
	linux-amarula@...rulasolutions.com,
	Wolfgang Birkner <wolfgang.birkner@...g.com>,
	Dario Binacchi <dario.binacchi@...rulasolutions.com>,
	Conor Dooley <conor+dt@...nel.org>,
	Fabio Estevam <festevam@...il.com>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Rob Herring <robh@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Shawn Guo <shawnguo@...nel.org>,
	devicetree@...r.kernel.org,
	imx@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org
Subject: [PATCH 9/9] arm64: dts: imx8mn-bsh-smm-s2-common: Disable PMIC SNVS reset target state

From: Wolfgang Birkner <wolfgang.birkner@...g.com>

VDD_DRAM was disabled on standby, therefore the reference hardware did not
wake up reliable. Use PMIC reset target state READY instead of SNVS, to
keep VDD_DRAM active during standby.

Signed-off-by: Wolfgang Birkner <wolfgang.birkner@...g.com>
Signed-off-by: Dario Binacchi <dario.binacchi@...rulasolutions.com>

---

 arch/arm64/boot/dts/freescale/imx8mn-bsh-smm-s2-common.dtsi | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8mn-bsh-smm-s2-common.dtsi b/arch/arm64/boot/dts/freescale/imx8mn-bsh-smm-s2-common.dtsi
index ea8d741c6904..633874b3bf66 100644
--- a/arch/arm64/boot/dts/freescale/imx8mn-bsh-smm-s2-common.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mn-bsh-smm-s2-common.dtsi
@@ -94,7 +94,6 @@ bd71847: pmic@4b {
 		pinctrl-0 = <&pinctrl_pmic>;
 		interrupt-parent = <&gpio1>;
 		interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
-		rohm,reset-snvs-powered;
 
 		#clock-cells = <0>;
 		clocks = <&osc_32k>;
-- 
2.43.0