ARM: dts: exynos: Add regulator suspend configuration to Odroid XU3/XU4/HC1 family

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 <krzk@kernel.org>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Anand Moon <linux.amoon@gmail.com>

diff --git a/arch/arm/boot/dts/exynos5422-odroid-core.dtsi b/arch/arm/boot/dts/exynos5422-odroid-core.dtsi
index 0f967259ad29a5dc4c8401f021c397772602023e..9843d21d692491fb7941dfc1707c5a70d31e76f0 100644 (file)
--- 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;
+                               };
                        };
                };
        };