From: Paul Cercueil Date: Wed, 6 Dec 2023 22:15:54 +0000 (+0100) Subject: ARM: dts: samsung: exynos4210-i9100: Unconditionally enable LDO12 X-Git-Tag: v5.15.149~367 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=57be4dd630caac73a12d78d4daade9ace33bd5e5;p=thirdparty%2Fkernel%2Fstable.git ARM: dts: samsung: exynos4210-i9100: Unconditionally enable LDO12 [ Upstream commit 84228d5e29dbc7a6be51e221000e1d122125826c ] The kernel hangs for a good 12 seconds without any info being printed to dmesg, very early in the boot process, if this regulator is not enabled. Force-enable it to work around this issue, until we know more about the underlying problem. Signed-off-by: Paul Cercueil Fixes: 8620cc2f99b7 ("ARM: dts: exynos: Add devicetree file for the Galaxy S2") Cc: stable@vger.kernel.org # v5.8+ Link: https://lore.kernel.org/r/20231206221556.15348-2-paul@crapouillou.net Signed-off-by: Krzysztof Kozlowski Signed-off-by: Sasha Levin --- diff --git a/arch/arm/boot/dts/exynos4210-i9100.dts b/arch/arm/boot/dts/exynos4210-i9100.dts index 93880bdbcad98..8232d843bfe04 100644 --- a/arch/arm/boot/dts/exynos4210-i9100.dts +++ b/arch/arm/boot/dts/exynos4210-i9100.dts @@ -520,6 +520,14 @@ regulator-name = "VT_CAM_1.8V"; regulator-min-microvolt = <1800000>; regulator-max-microvolt = <1800000>; + + /* + * Force-enable this regulator; otherwise the + * kernel hangs very early in the boot process + * for about 12 seconds, without apparent + * reason. + */ + regulator-always-on; }; vcclcd_reg: LDO13 {