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arm64: dts: exynos: Keep LDO12 always-on on Espresso
authorAlim Akhtar <alim.akhtar@samsung.com>
Sun, 5 Jul 2020 07:09:18 +0000 (12:39 +0530)
committerKrzysztof Kozlowski <krzk@kernel.org>
Tue, 7 Jul 2020 06:42:12 +0000 (08:42 +0200)
LDO12 on Exynos7 Espresso board supplies power to VDDQ_UFS20_RESET, in
case this regulator is OFF, UFS host controller can not send command to
UFS device. To keep this supply ON, set regulator-always-on property for
this LDO.

Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
arch/arm64/boot/dts/exynos/exynos7-espresso.dts patch | blob | history

diff --git a/arch/arm64/boot/dts/exynos/exynos7-espresso.dts b/arch/arm64/boot/dts/exynos/exynos7-espresso.dts
index bb86950..92fecc5 100644 (file)
--- a/arch/arm64/boot/dts/exynos/exynos7-espresso.dts
+++ b/arch/arm64/boot/dts/exynos/exynos7-espresso.dts
@@ -194,6 +194,7 @@
                                regulator-min-microvolt = <1000000>;
                                regulator-max-microvolt = <1300000>;
                                regulator-enable-ramp-delay = <125>;
+                               regulator-always-on;
                        };
 
                        ldo13_reg: LDO13 {
Domain: System / Kernel;