From: Alim Akhtar alim.akhtar@samsung.com
[ 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 --- arch/arm64/boot/dts/exynos/exynos7-espresso.dts | 1 + 1 file changed, 1 insertion(+)
diff --git a/arch/arm64/boot/dts/exynos/exynos7-espresso.dts b/arch/arm64/boot/dts/exynos/exynos7-espresso.dts index 4a8b1fb51243c..c8824b918693d 100644 --- a/arch/arm64/boot/dts/exynos/exynos7-espresso.dts +++ b/arch/arm64/boot/dts/exynos/exynos7-espresso.dts @@ -155,6 +155,7 @@ ldo7_reg: LDO7 { regulator-min-microvolt = <700000>; regulator-max-microvolt = <1150000>; regulator-enable-ramp-delay = <125>; + regulator-always-on; };
ldo8_reg: LDO8 {