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    Subject[PATCH v1 1/2] arm64: dts: exynos: Fix silent hang after boot
    Date
    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(+)

    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 {
    base-commit: 9e50b94b3eb0d859a2586b5a40d7fd6e5afd9210
    --
    2.17.1

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