Add the PMIC regulator suspend configuration to entire Odroid XU3/XU4/HC1 family of boards to reduce power usage during suspend. The configuration is based on vendor (Hardkernel) reference kernel with additional buck9 suspend configuration (for USB hub suspend and proper reset).
Energy consumption measurements from Marek Szyprowski during suspend to
RAM:
- all at 5 V power supply,
- before: next-20190620,
- after: next-20190620 + this patch + suspend configuration for s2mps11
regulator driver,
Board | before [mA] | after [mA] |
Odroid HC1 | 120 | 7-10 |
Odroid XU4, sdcard | 88 | 6-9 |
Odroid XU4, eMMC | 100 | 6-9 |
Signed-off-by: Krzysztof Kozlowski <[email protected]>
Tested-by: Marek Szyprowski <[email protected]>
Tested-by: Anand Moon <[email protected]>
---
Tested on XU3 and HC1 with SD card.
---
Changes since v2:
1. Suspend also buck9, as suggested by Anand.
2. Add Anand's tag.
Changes since v1:
1. Add Marek's tag.
---
arch/arm/boot/dts/exynos5422-odroid-core.dtsi | 96 +++++++++++++++++++
1 file changed, 96 insertions(+)
diff --git a/arch/arm/boot/dts/exynos5422-odroid-core.dtsi
b/arch/arm/boot/dts/exynos5422-odroid-core.dtsi
index 0f967259ad29..9843d21d6924 100644
--- a/arch/arm/boot/dts/exynos5422-odroid-core.dtsi
+++ b/arch/arm/boot/dts/exynos5422-odroid-core.dtsi
@@ -177,6 +177,10 @@
regulator-name = "vdd_adc";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
+
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
ldo5_reg: LDO5 {
@@ -184,6 +188,10 @@
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
+
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
ldo6_reg: LDO6 {
@@ -191,6 +199,10 @@
regulator-min-microvolt = <1000000>;
regulator-max-microvolt = <1000000>;
regulator-always-on;
+
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
ldo7_reg: LDO7 {
@@ -198,6 +210,10 @@
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
+
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
ldo8_reg: LDO8 {
@@ -205,6 +221,10 @@
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
+
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
ldo9_reg: LDO9 {
@@ -212,6 +232,10 @@
regulator-min-microvolt = <3000000>;
regulator-max-microvolt = <3000000>;
regulator-always-on;
+
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
ldo10_reg: LDO10 {
@@ -219,6 +243,10 @@
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
+
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
ldo11_reg: LDO11 {
@@ -226,6 +254,10 @@
regulator-min-microvolt = <1000000>;
regulator-max-microvolt = <1000000>;
regulator-always-on;
+
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
ldo12_reg: LDO12 {
@@ -239,6 +271,10 @@
regulator-name = "vddq_mmc2";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <2800000>;
+
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
ldo14_reg: LDO14 {
@@ -253,6 +289,10 @@
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
+
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
ldo16_reg: LDO16 {
@@ -267,18 +307,30 @@
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
+
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
ldo18_reg: LDO18 {
regulator-name = "vdd_emmc_1V8";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
+
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
ldo19_reg: LDO19 {
regulator-name = "vdd_sd";
regulator-min-microvolt = <2800000>;
regulator-max-microvolt = <2800000>;
+
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
ldo20_reg: LDO20 {
@@ -307,6 +359,10 @@
regulator-min-microvolt = <1100000>;
regulator-max-microvolt = <1100000>;
regulator-always-on;
+
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
ldo24_reg: LDO24 {
@@ -328,6 +384,10 @@
regulator-name = "vdd_ldo26";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <3950000>;
+
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
ldo27_reg: LDO27 {
@@ -335,6 +395,10 @@
regulator-min-microvolt = <1000000>;
regulator-max-microvolt = <1000000>;
regulator-always-on;
+
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
ldo28_reg: LDO28 {
@@ -342,6 +406,10 @@
regulator-name = "vdd_ldo28";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <3950000>;
+
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
ldo29_reg: LDO29 {
@@ -420,6 +488,10 @@
regulator-max-microvolt = <1300000>;
regulator-always-on;
regulator-boot-on;
+
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
buck2_reg: BUCK2 {
@@ -428,6 +500,10 @@
regulator-max-microvolt = <1500000>;
regulator-always-on;
regulator-boot-on;
+
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
buck3_reg: BUCK3 {
@@ -436,6 +512,10 @@
regulator-max-microvolt = <1400000>;
regulator-always-on;
regulator-boot-on;
+
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
buck4_reg: BUCK4 {
@@ -444,6 +524,10 @@
regulator-max-microvolt = <1400000>;
regulator-always-on;
regulator-boot-on;
+
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
buck5_reg: BUCK5 {
@@ -460,6 +544,10 @@
regulator-max-microvolt = <1500000>;
regulator-always-on;
regulator-boot-on;
+
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
buck7_reg: BUCK7 {
@@ -484,12 +572,20 @@
regulator-max-microvolt = <3750000>;
regulator-always-on;
regulator-boot-on;
+
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
buck10_reg: BUCK10 {
regulator-name = "vdd_vmem";
regulator-min-microvolt = <2850000>;
regulator-max-microvolt = <2850000>;
+
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
};
};
--
2.17.1
