linux-kernel - [PATCH 5.3 029/140] arm64: dts: zii-ultra: fix ARM regulator states

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Date:   Fri,  8 Nov 2019 19:49:17 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Lucas Stach <l.stach@...gutronix.de>,
        Shawn Guo <shawnguo@...nel.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.3 029/140] arm64: dts: zii-ultra: fix ARM regulator states

From: Lucas Stach <l.stach@...gutronix.de>

[ Upstream commit 21094ba5c1f4b15df096e8f6247a50b6ab57c869 ]

The GPIO controlled regulator for the ARM power supply is supplying
the higher voltage when the GPIO is driven high. This is opposite to
the similar regulator setup on the EVK board and is impacting stability
of the board as the ARM domain has been supplied with a too low voltage
when to faster OPPs are in use.

Fixes: 4a13b3bec3b4 (arm64: dts: imx: add Zii Ultra board support)
Signed-off-by: Lucas Stach <l.stach@...gutronix.de>
Signed-off-by: Shawn Guo <shawnguo@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/arm64/boot/dts/freescale/imx8mq-zii-ultra.dtsi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8mq-zii-ultra.dtsi b/arch/arm64/boot/dts/freescale/imx8mq-zii-ultra.dtsi
index 7a1706f969f09..3faa652fdf20d 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-zii-ultra.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mq-zii-ultra.dtsi
@@ -101,8 +101,8 @@
 		regulator-min-microvolt = <900000>;
 		regulator-max-microvolt = <1000000>;
 		gpios = <&gpio3 19 GPIO_ACTIVE_HIGH>;
-		states = <1000000 0x0
-		           900000 0x1>;
+		states = <1000000 0x1
+		           900000 0x0>;
 		regulator-always-on;
 	};
 };
-- 
2.20.1