The regulator core now has support to choose if a regulator
has to be enabled or disabled during system suspend and also
the supports changing the regulator operating mode during
runtime and when the system enters into sleep mode.
To lower power during suspend, configure the regulators state
using the same configuration found in the ChromeOS 3.8 kernel.
Signed-off-by: Javier Martinez Canillas <javier.martinez@xxxxxxxxxxxxxxx>
---
Changes in v4: None
Changes in v3:
- Use the standard suspend state binding as suggested by Mark Brown.
arch/arm/boot/dts/exynos5420-peach-pit.dts | 81 ++++++++++++++++++++++++++++++
arch/arm/boot/dts/exynos5800-peach-pi.dts | 81 ++++++++++++++++++++++++++++++
2 files changed, 162 insertions(+)
diff --git a/arch/arm/boot/dts/exynos5420-peach-pit.dts b/arch/arm/boot/dts/exynos5420-peach-pit.dts
index 9a050e1..8b744c7 100644
--- a/arch/arm/boot/dts/exynos5420-peach-pit.dts
+++ b/arch/arm/boot/dts/exynos5420-peach-pit.dts
@@ -13,6 +13,7 @@
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/clock/maxim,max77802.h>
+#include <dt-bindings/regulator/maxim,max77802.h>
#include "exynos5420.dtsi"
/ {
@@ -192,6 +193,9 @@
regulator-always-on;
regulator-boot-on;
regulator-ramp-delay = <12500>;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
buck2_reg: BUCK2 {
@@ -201,6 +205,9 @@
regulator-always-on;
regulator-boot-on;
regulator-ramp-delay = <12500>;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
buck3_reg: BUCK3 {
@@ -210,6 +217,9 @@
regulator-always-on;
regulator-boot-on;
regulator-ramp-delay = <12500>;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
buck4_reg: BUCK4 {
@@ -219,6 +229,9 @@
regulator-always-on;
regulator-boot-on;
regulator-ramp-delay = <12500>;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
buck5_reg: BUCK5 {
@@ -227,6 +240,9 @@
regulator-max-microvolt = <1200000>;
regulator-always-on;
regulator-boot-on;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
buck6_reg: BUCK6 {
@@ -236,6 +252,9 @@
regulator-always-on;
regulator-boot-on;
regulator-ramp-delay = <12500>;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
buck7_reg: BUCK7 {
@@ -244,6 +263,9 @@
regulator-max-microvolt = <1350000>;
regulator-always-on;
regulator-boot-on;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ };
};
buck8_reg: BUCK8 {
@@ -252,6 +274,9 @@
regulator-max-microvolt = <2850000>;
regulator-always-on;
regulator-boot-on;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
buck9_reg: BUCK9 {
@@ -260,6 +285,9 @@
regulator-max-microvolt = <2000000>;
regulator-always-on;
regulator-boot-on;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ };
};
buck10_reg: BUCK10 {
@@ -268,6 +296,9 @@
regulator-max-microvolt = <1800000>;
regulator-always-on;
regulator-boot-on;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ };
};
ldo1_reg: LDO1 {
@@ -275,6 +306,10 @@
regulator-min-microvolt = <1000000>;
regulator-max-microvolt = <1000000>;
regulator-always-on;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ regulator-mode = <MAX77802_OPMODE_LP>;
+ };
};
ldo2_reg: LDO2 {
@@ -288,6 +323,10 @@
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ regulator-mode = <MAX77802_OPMODE_LP>;
+ };
};
vqmmc_sdcard: ldo4_reg: LDO4 {
@@ -295,6 +334,9 @@
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <2800000>;
regulator-always-on;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
ldo5_reg: LDO5 {
@@ -302,6 +344,9 @@
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
ldo6_reg: LDO6 {
@@ -309,6 +354,9 @@
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
ldo7_reg: LDO7 {
@@ -322,6 +370,9 @@
regulator-min-microvolt = <1000000>;
regulator-max-microvolt = <1000000>;
regulator-always-on;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
ldo9_reg: LDO9 {
@@ -329,6 +380,10 @@
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ regulator-mode = <MAX77802_OPMODE_LP>;
+ };
};
ldo10_reg: LDO10 {
@@ -336,6 +391,9 @@
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
ldo11_reg: LDO11 {
@@ -343,6 +401,10 @@
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ regulator-mode = <MAX77802_OPMODE_LP>;
+ };
};
ldo12_reg: LDO12 {
@@ -350,6 +412,9 @@
regulator-min-microvolt = <3000000>;
regulator-max-microvolt = <3000000>;
regulator-always-on;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
ldo13_reg: LDO13 {
@@ -357,6 +422,10 @@
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ regulator-mode = <MAX77802_OPMODE_LP>;
+ };
};
ldo14_reg: LDO14 {
@@ -364,6 +433,9 @@
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
ldo15_reg: LDO15 {
@@ -371,6 +443,9 @@
regulator-min-microvolt = <1000000>;
regulator-max-microvolt = <1000000>;
regulator-always-on;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
ldo17_reg: LDO17 {
@@ -378,6 +453,9 @@
regulator-min-microvolt = <900000>;
regulator-max-microvolt = <1400000>;
regulator-always-on;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
ldo18_reg: LDO18 {
@@ -451,6 +529,9 @@
regulator-min-microvolt = <1000000>;
regulator-max-microvolt = <1000000>;
regulator-always-on;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
ldo32_reg: LDO32 {
diff --git a/arch/arm/boot/dts/exynos5800-peach-pi.dts b/arch/arm/boot/dts/exynos5800-peach-pi.dts
index e8fdda8..df7fbde 100644
--- a/arch/arm/boot/dts/exynos5800-peach-pi.dts
+++ b/arch/arm/boot/dts/exynos5800-peach-pi.dts
@@ -13,6 +13,7 @@
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/clock/maxim,max77802.h>
+#include <dt-bindings/regulator/maxim,max77802.h>
#include "exynos5800.dtsi"
/ {
@@ -191,6 +192,9 @@
regulator-always-on;
regulator-boot-on;
regulator-ramp-delay = <12500>;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
buck2_reg: BUCK2 {
@@ -200,6 +204,9 @@
regulator-always-on;
regulator-boot-on;
regulator-ramp-delay = <12500>;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
buck3_reg: BUCK3 {
@@ -209,6 +216,9 @@
regulator-always-on;
regulator-boot-on;
regulator-ramp-delay = <12500>;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
buck4_reg: BUCK4 {
@@ -218,6 +228,9 @@
regulator-always-on;
regulator-boot-on;
regulator-ramp-delay = <12500>;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
buck5_reg: BUCK5 {
@@ -226,6 +239,9 @@
regulator-max-microvolt = <1200000>;
regulator-always-on;
regulator-boot-on;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
buck6_reg: BUCK6 {
@@ -235,6 +251,9 @@
regulator-always-on;
regulator-boot-on;
regulator-ramp-delay = <12500>;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
buck7_reg: BUCK7 {
@@ -243,6 +262,9 @@
regulator-max-microvolt = <1350000>;
regulator-always-on;
regulator-boot-on;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ };
};
buck8_reg: BUCK8 {
@@ -251,6 +273,9 @@
regulator-max-microvolt = <2850000>;
regulator-always-on;
regulator-boot-on;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
buck9_reg: BUCK9 {
@@ -259,6 +284,9 @@
regulator-max-microvolt = <2000000>;
regulator-always-on;
regulator-boot-on;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ };
};
buck10_reg: BUCK10 {
@@ -267,6 +295,9 @@
regulator-max-microvolt = <1800000>;
regulator-always-on;
regulator-boot-on;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ };
};
ldo1_reg: LDO1 {
@@ -274,6 +305,10 @@
regulator-min-microvolt = <1000000>;
regulator-max-microvolt = <1000000>;
regulator-always-on;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ regulator-mode = <MAX77802_OPMODE_LP>;
+ };
};
ldo2_reg: LDO2 {
@@ -287,6 +322,10 @@
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ regulator-mode = <MAX77802_OPMODE_LP>;
+ };
};
vqmmc_sdcard: ldo4_reg: LDO4 {
@@ -294,6 +333,9 @@
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <2800000>;
regulator-always-on;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
ldo5_reg: LDO5 {
@@ -301,6 +343,9 @@
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
ldo6_reg: LDO6 {
@@ -308,6 +353,9 @@
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
ldo7_reg: LDO7 {
@@ -321,6 +369,9 @@
regulator-min-microvolt = <1000000>;
regulator-max-microvolt = <1000000>;
regulator-always-on;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
ldo9_reg: LDO9 {
@@ -328,6 +379,10 @@
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ regulator-mode = <MAX77802_OPMODE_LP>;
+ };
};
ldo10_reg: LDO10 {
@@ -335,6 +390,9 @@
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
ldo11_reg: LDO11 {
@@ -342,6 +400,10 @@
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ regulator-mode = <MAX77802_OPMODE_LP>;
+ };
};
ldo12_reg: LDO12 {
@@ -349,6 +411,9 @@
regulator-min-microvolt = <3000000>;
regulator-max-microvolt = <3000000>;
regulator-always-on;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
ldo13_reg: LDO13 {
@@ -356,6 +421,10 @@
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ regulator-mode = <MAX77802_OPMODE_LP>;
+ };
};
ldo14_reg: LDO14 {
@@ -363,6 +432,9 @@
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
ldo15_reg: LDO15 {
@@ -370,6 +442,9 @@
regulator-min-microvolt = <1000000>;
regulator-max-microvolt = <1000000>;
regulator-always-on;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
ldo17_reg: LDO17 {
@@ -377,6 +452,9 @@
regulator-min-microvolt = <900000>;
regulator-max-microvolt = <1400000>;
regulator-always-on;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
ldo18_reg: LDO18 {
@@ -450,6 +528,9 @@
regulator-min-microvolt = <1000000>;
regulator-max-microvolt = <1000000>;
regulator-always-on;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
ldo32_reg: LDO32 {
--
2.1.0
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