linux-kernel - [PATCH] arm64: dts: rockchip: Fix SD card controller probe on Pinephone Pro

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Date:   Mon,  5 Sep 2022 01:36:47 +0200
From:   Ondrej Jirman <megi@....cz>
To:     linux-rockchip@...ts.infradead.org
Cc:     Ondrej Jirman <megi@....cz>, Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Heiko Stuebner <heiko@...ech.de>,
        Martijn Braam <martijn@...xit.nl>,
        Tom Fitzhenry <tom@...-fitzhenry.me.uk>,
        Caleb Connolly <kc@...tmarketos.org>,
        Arnaud Ferraris <arnaud.ferraris@...il.com>,
        Nícolas F. R. A. Prado 
        <n@...aprado.net>,
        devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED
        DEVICE TREE BINDINGS),
        linux-arm-kernel@...ts.infradead.org (moderated list:ARM/Rockchip SoC
        support), linux-kernel@...r.kernel.org (open list)
Subject: [PATCH] arm64: dts: rockchip: Fix SD card controller probe on Pinephone Pro

Voltage constraints on vccio_sd are invalid. They don't match the voltages
that LDO9 can generate, and this causes rk808-regulator driver to fail
to probe with -EINVAL when it tries to apply the constraints during boot.

Fix the constraints to something that LDO9 can be actually configured for.

Fixes: 78a21c7d5952 ("arm64: dts: rockchip: Add initial support for Pine64 PinePhone Pro")
Signed-off-by: Ondrej Jirman <megi@....cz>
---
 arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts b/arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts
index f00c80361377a..2e058c3150256 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts
@@ -253,8 +253,8 @@ regulator-state-mem {
 
 			vccio_sd: LDO_REG9 {
 				regulator-name = "vccio_sd";
-				regulator-min-microvolt = <1710000>;
-				regulator-max-microvolt = <3150000>;
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <3300000>;
 			};
 
 			vcc3v3_s0: SWITCH_REG {
-- 
2.37.3