linux-kernel - [PATCH] arm64: dts: rockchip: Fix vdd

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Message-ID: <d786ef47-eda8-3994-2ef2-fc4a584bcdcc@fivetechno.de>
Date:   Tue, 12 Nov 2019 12:42:09 +0100
From:   Markus Reichl <m.reichl@...etechno.de>
To:     Soeren Moch <smoch@....de>, Kever Yang <kever.yang@...k-chips.com>,
        heiko@...ech.de
Cc:     Mark Rutland <mark.rutland@....com>,
        Andrius Štikonas <andrius@...konas.eu>,
        Alexis Ballier <aballier@...too.org>,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        Katsuhiro Suzuki <katsuhiro@...suster.net>,
        Ezequiel Garcia <ezequiel@...labora.com>,
        Elaine Zhang <zhangqing@...k-chips.com>,
        Andy Yan <andyshrk@...il.com>, linux-kernel@...r.kernel.org,
        Vicente Bergas <vicencb@...il.com>,
        Hugh Cole-Baker <sigmaris@...il.com>,
        linux-rockchip@...ts.infradead.org,
        Rob Herring <robh+dt@...nel.org>,
        Oskari Lemmela <oskari@...mela.net>,
        Nick Xie <nick@...das.com>,
        Peter Robinson <pbrobinson@...il.com>,
        Robin Murphy <robin.murphy@....com>,
        Vivek Unune <npcomplete13@...il.com>,
        Akash Gajjar <akash@...nedev.com>
Subject: [PATCH] arm64: dts: rockchip: Fix vdd_log on rk3399-roc-pc

On rk3399 vdd_log shall not exceed 1.0 V. On rk3399-roc-pc
vdd_log is presently 1118 mV. Fix by setting the min voltage
of the respective pwm-regulator down to 450 mV.
This results in a vdd_log of 953 mV.
Specify the supply to silence warning.

Signed-off-by: Markus Reichl <m.reichl@...etechno.de>
---
 arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dtsi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dtsi
index a31099f7620b..4dac88ef7e72 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dtsi
@@ -211,9 +211,9 @@
 		regulator-name = "vdd_log";
 		regulator-always-on;
 		regulator-boot-on;
-		regulator-min-microvolt = <800000>;
+		regulator-min-microvolt = <450000>;
 		regulator-max-microvolt = <1400000>;
-		vin-supply = <&vcc3v3_sys>;
+		pwm-supply = <&vcc3v3_sys>;
 	};
 };
 
-- 
2.20.1