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arm64: dts: exynos: Fix silent hang after boot on Espresso

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[ Upstream commit b072714bfc0e42c984b8fd6e069f3ca17de8137a ]

Once regulators are disabled after kernel boot, on Espresso board silent
hang observed because of LDO7 being disabled.  LDO7 actually provide
power to CPU cores and non-cpu blocks circuitries.  Keep this regulator
always-on to fix this hang.

Fixes: 9589f7721e16 ("arm64: dts: Add S2MPS15 PMIC node on exynos7-espresso")
Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Alim Akhtar 2020-07-05 12:39:17 +05:30 committed by Greg Kroah-Hartman
parent 420acbfdd6
commit 4d7115d292
1 changed files with 1 additions and 0 deletions
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arch/arm64/boot/dts/exynos/exynos7-espresso.dts
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@ -157,6 +157,7 @@
regulator-min-microvolt = <700000>;
regulator-max-microvolt = <1150000>;
regulator-enable-ramp-delay = <125>;
regulator-always-on;
};
ldo8_reg: LDO8 {