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Subject[PATCH AUTOSEL 4.9 13/64] ARM: dts: exynos: Fix regulators configuration on Peach Pi/Pit Chromebooks
Date
From: Marek Szyprowski <m.szyprowski@samsung.com>

[ Upstream commit f8f3b7fc21b1cb59385b780acd9b9a26d04cb7b2 ]

Regulators, which are marked as 'on-in-suspend' seems to be critical for
board operation, thus they must not be disabled anytime. This can be
only assured by marking them as 'always-on', because otherwise some
actions of their clients might result in turning them off. This patch
restores suspend/resume operation on Peach-Pit Chromebook board. It
partially reverts 'always-on' property removal done by the commit
mentioned in the Fixes tag.

Fixes: 665c441eea3d ("ARM: dts: exynos: Remove unneded always-on for regulators on Peach boards")
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Tomasz Figa <tfiga@chromium.org>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/arm/boot/dts/exynos5420-peach-pit.dts | 3 +++
arch/arm/boot/dts/exynos5800-peach-pi.dts | 3 +++
2 files changed, 6 insertions(+)

diff --git a/arch/arm/boot/dts/exynos5420-peach-pit.dts b/arch/arm/boot/dts/exynos5420-peach-pit.dts
index 8b754ae8c8f7d..c9d379b1a1669 100644
--- a/arch/arm/boot/dts/exynos5420-peach-pit.dts
+++ b/arch/arm/boot/dts/exynos5420-peach-pit.dts
@@ -302,6 +302,7 @@
regulator-name = "vdd_1v35";
regulator-min-microvolt = <1350000>;
regulator-max-microvolt = <1350000>;
+ regulator-always-on;
regulator-boot-on;
regulator-state-mem {
regulator-on-in-suspend;
@@ -323,6 +324,7 @@
regulator-name = "vdd_2v";
regulator-min-microvolt = <2000000>;
regulator-max-microvolt = <2000000>;
+ regulator-always-on;
regulator-boot-on;
regulator-state-mem {
regulator-on-in-suspend;
@@ -333,6 +335,7 @@
regulator-name = "vdd_1v8";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
+ regulator-always-on;
regulator-boot-on;
regulator-state-mem {
regulator-on-in-suspend;
diff --git a/arch/arm/boot/dts/exynos5800-peach-pi.dts b/arch/arm/boot/dts/exynos5800-peach-pi.dts
index 1f90df2d7ecd8..ae58b8d6f6144 100644
--- a/arch/arm/boot/dts/exynos5800-peach-pi.dts
+++ b/arch/arm/boot/dts/exynos5800-peach-pi.dts
@@ -302,6 +302,7 @@
regulator-name = "vdd_1v35";
regulator-min-microvolt = <1350000>;
regulator-max-microvolt = <1350000>;
+ regulator-always-on;
regulator-boot-on;
regulator-state-mem {
regulator-on-in-suspend;
@@ -323,6 +324,7 @@
regulator-name = "vdd_2v";
regulator-min-microvolt = <2000000>;
regulator-max-microvolt = <2000000>;
+ regulator-always-on;
regulator-boot-on;
regulator-state-mem {
regulator-on-in-suspend;
@@ -333,6 +335,7 @@
regulator-name = "vdd_1v8";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
+ regulator-always-on;
regulator-boot-on;
regulator-state-mem {
regulator-on-in-suspend;
--
2.20.1
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