diff mbox series

[1/2] arm64: dts: exynos: Fix silent hang after boot

Message ID 20200705065747.63014-1-alim.akhtar@samsung.com (mailing list archive)
State Mainlined
Commit b072714bfc0e42c984b8fd6e069f3ca17de8137a
Headers show
Series [1/2] arm64: dts: exynos: Fix silent hang after boot | expand

Commit Message

Alim Akhtar July 5, 2020, 6:57 a.m. UTC 
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>
---
 arch/arm64/boot/dts/exynos/exynos7-espresso.dts | 1 +
 1 file changed, 1 insertion(+)


base-commit: 9e50b94b3eb0d859a2586b5a40d7fd6e5afd9210
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/exynos/exynos7-espresso.dts b/arch/arm64/boot/dts/exynos/exynos7-espresso.dts
index 790f12ca8981..bb86950032d3 100644
--- a/arch/arm64/boot/dts/exynos/exynos7-espresso.dts
+++ b/arch/arm64/boot/dts/exynos/exynos7-espresso.dts
@@ -157,6 +157,7 @@ 
 				regulator-min-microvolt = <700000>;
 				regulator-max-microvolt = <1150000>;
 				regulator-enable-ramp-delay = <125>;
+				regulator-always-on;
 			};
 
 			ldo8_reg: LDO8 {