From: Heiko Thiery <heiko.thiery@gmail.com>
To: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Cc: Krzysztof Kozlowski <krzk@kernel.org>,
Michael Walle <michael@walle.cc>,
Joakim Zhang <qiangqing.zhang@nxp.com>,
Shengjiu Wang <shengjiu.wang@nxp.com>,
Rob Herring <robh+dt@kernel.org>, Shawn Guo <shawnguo@kernel.org>,
Sascha Hauer <s.hauer@pengutronix.de>,
Pengutronix Kernel Team <kernel@pengutronix.de>,
Fabio Estevam <festevam@gmail.com>,
NXP Linux Team <linux-imx@nxp.com>,
Heiko Thiery <heiko.thiery@gmail.com>,
Frieder Schrempf <frieder.schrempf@kontron.de>
Subject: [PATCH] arm64: dts: imx8mm-kontron-n801x-som: do not allow to switch off buck2
Date: Wed, 15 Sep 2021 14:03:26 +0200 [thread overview]
Message-ID: <20210915120325.20248-1-heiko.thiery@gmail.com> (raw)
The buck2 output of the PMIC is the VDD core voltage of the cpu.
Switching off this will poweroff the CPU. Add the 'regulator-always-on'
property to avoid this.
Fixes: 8668d8b2e67f ("arm64: dts: Add the Kontron i.MX8M Mini SoMs and baseboards")
Signed-off-by: Heiko Thiery <heiko.thiery@gmail.com>
---
arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi
index d0456daefda8..9db9b90bf2bc 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi
@@ -102,6 +102,7 @@ reg_vdd_arm: BUCK2 {
regulator-min-microvolt = <850000>;
regulator-max-microvolt = <950000>;
regulator-boot-on;
+ regulator-always-on;
regulator-ramp-delay = <3125>;
nxp,dvs-run-voltage = <950000>;
nxp,dvs-standby-voltage = <850000>;
--
2.30.0
WARNING: multiple messages have this Message-ID
From: Heiko Thiery <heiko.thiery@gmail.com>
To: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Cc: Krzysztof Kozlowski <krzk@kernel.org>,
Michael Walle <michael@walle.cc>,
Joakim Zhang <qiangqing.zhang@nxp.com>,
Shengjiu Wang <shengjiu.wang@nxp.com>,
Rob Herring <robh+dt@kernel.org>, Shawn Guo <shawnguo@kernel.org>,
Sascha Hauer <s.hauer@pengutronix.de>,
Pengutronix Kernel Team <kernel@pengutronix.de>,
Fabio Estevam <festevam@gmail.com>,
NXP Linux Team <linux-imx@nxp.com>,
Heiko Thiery <heiko.thiery@gmail.com>,
Frieder Schrempf <frieder.schrempf@kontron.de>
Subject: [PATCH] arm64: dts: imx8mm-kontron-n801x-som: do not allow to switch off buck2
Date: Wed, 15 Sep 2021 14:03:26 +0200 [thread overview]
Message-ID: <20210915120325.20248-1-heiko.thiery@gmail.com> (raw)
The buck2 output of the PMIC is the VDD core voltage of the cpu.
Switching off this will poweroff the CPU. Add the 'regulator-always-on'
property to avoid this.
Fixes: 8668d8b2e67f ("arm64: dts: Add the Kontron i.MX8M Mini SoMs and baseboards")
Signed-off-by: Heiko Thiery <heiko.thiery@gmail.com>
---
arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi
index d0456daefda8..9db9b90bf2bc 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi
@@ -102,6 +102,7 @@ reg_vdd_arm: BUCK2 {
regulator-min-microvolt = <850000>;
regulator-max-microvolt = <950000>;
regulator-boot-on;
+ regulator-always-on;
regulator-ramp-delay = <3125>;
nxp,dvs-run-voltage = <950000>;
nxp,dvs-standby-voltage = <850000>;
--
2.30.0
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next reply other threads:[~2021-09-15 12:04 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-15 12:03 Heiko Thiery [this message]
2021-09-15 12:03 ` Heiko Thiery
2021-09-15 12:05 ` Michael Walle
2021-09-15 12:05 ` Michael Walle
2021-09-15 12:09 ` Frieder Schrempf
2021-09-15 12:09 ` Frieder Schrempf
2021-09-17 7:28 ` Heiko Thiery
2021-09-17 7:28 ` Heiko Thiery
2021-09-17 8:21 ` Michael Walle
2021-09-17 8:21 ` Michael Walle
2021-09-17 8:51 ` Heiko Thiery
2021-09-17 8:51 ` Heiko Thiery
2021-09-17 11:44 ` Lucas Stach
2021-09-17 11:44 ` Lucas Stach
2021-09-17 16:10 ` Heiko Thiery
2021-09-17 16:10 ` Heiko Thiery
2021-09-20 7:31 ` Frieder Schrempf
2021-09-20 7:31 ` Frieder Schrempf
2021-09-20 7:43 ` Michael Walle
2021-09-20 7:43 ` Michael Walle
2021-09-20 8:10 ` Lucas Stach
2021-09-20 8:10 ` Lucas Stach
2021-10-04 12:39 ` Shawn Guo
2021-10-04 12:39 ` Shawn Guo
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