regulator: tps6586x: add support for SYS rail
Device have SYS rail which is always ON. It is system power bus. LDO5
and LDO_RTC get powered through this rail internally. Add support for
this rail and make the LDO5/LDO_RTC supply by it. Update document
accordingly.
[swarren: Instantiate the sys regulator from board-harmony-power.c to
avoid regression.]
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/Documentation/devicetree/bindings/regulator/tps6586x.txt b/Documentation/devicetree/bindings/regulator/tps6586x.txt
index da80c2a..a2436e1 100644
--- a/Documentation/devicetree/bindings/regulator/tps6586x.txt
+++ b/Documentation/devicetree/bindings/regulator/tps6586x.txt
@@ -8,7 +8,8 @@
- gpio-controller: mark the device as a GPIO controller
- regulators: list of regulators provided by this controller, must have
property "regulator-compatible" to match their hardware counterparts:
- sm[0-2], ldo[0-9] and ldo_rtc
+ sys, sm[0-2], ldo[0-9] and ldo_rtc
+- sys-supply: The input supply for SYS.
- vin-sm0-supply: The input supply for the SM0.
- vin-sm1-supply: The input supply for the SM1.
- vin-sm2-supply: The input supply for the SM2.
@@ -20,6 +21,9 @@
Each regulator is defined using the standard binding for regulators.
+Note: LDO5 and LDO_RTC is supplied by SYS regulator internally and driver
+ take care of making proper parent child relationship.
+
Example:
pmu: tps6586x@34 {
@@ -30,6 +34,7 @@
#gpio-cells = <2>;
gpio-controller;
+ sys-supply = <&some_reg>;
vin-sm0-supply = <&some_reg>;
vin-sm1-supply = <&some_reg>;
vin-sm2-supply = <&some_reg>;
@@ -43,8 +48,16 @@
#address-cells = <1>;
#size-cells = <0>;
- sm0_reg: regulator@0 {
+ sys_reg: regulator@0 {
reg = <0>;
+ regulator-compatible = "sys";
+ regulator-name = "vdd_sys";
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ sm0_reg: regulator@1 {
+ reg = <1>;
regulator-compatible = "sm0";
regulator-min-microvolt = < 725000>;
regulator-max-microvolt = <1500000>;
@@ -52,8 +65,8 @@
regulator-always-on;
};
- sm1_reg: regulator@1 {
- reg = <1>;
+ sm1_reg: regulator@2 {
+ reg = <2>;
regulator-compatible = "sm1";
regulator-min-microvolt = < 725000>;
regulator-max-microvolt = <1500000>;
@@ -61,8 +74,8 @@
regulator-always-on;
};
- sm2_reg: regulator@2 {
- reg = <2>;
+ sm2_reg: regulator@3 {
+ reg = <3>;
regulator-compatible = "sm2";
regulator-min-microvolt = <3000000>;
regulator-max-microvolt = <4550000>;
@@ -70,72 +83,72 @@
regulator-always-on;
};
- ldo0_reg: regulator@3 {
- reg = <3>;
+ ldo0_reg: regulator@4 {
+ reg = <4>;
regulator-compatible = "ldo0";
regulator-name = "PCIE CLK";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
};
- ldo1_reg: regulator@4 {
- reg = <4>;
+ ldo1_reg: regulator@5 {
+ reg = <5>;
regulator-compatible = "ldo1";
regulator-min-microvolt = < 725000>;
regulator-max-microvolt = <1500000>;
};
- ldo2_reg: regulator@5 {
- reg = <5>;
+ ldo2_reg: regulator@6 {
+ reg = <6>;
regulator-compatible = "ldo2";
regulator-min-microvolt = < 725000>;
regulator-max-microvolt = <1500000>;
};
- ldo3_reg: regulator@6 {
- reg = <6>;
+ ldo3_reg: regulator@7 {
+ reg = <7>;
regulator-compatible = "ldo3";
regulator-min-microvolt = <1250000>;
regulator-max-microvolt = <3300000>;
};
- ldo4_reg: regulator@7 {
- reg = <7>;
+ ldo4_reg: regulator@8 {
+ reg = <8>;
regulator-compatible = "ldo4";
regulator-min-microvolt = <1700000>;
regulator-max-microvolt = <2475000>;
};
- ldo5_reg: regulator@8 {
- reg = <8>;
+ ldo5_reg: regulator@9 {
+ reg = <9>;
regulator-compatible = "ldo5";
regulator-min-microvolt = <1250000>;
regulator-max-microvolt = <3300000>;
};
- ldo6_reg: regulator@9 {
- reg = <9>;
+ ldo6_reg: regulator@10 {
+ reg = <10>;
regulator-compatible = "ldo6";
regulator-min-microvolt = <1250000>;
regulator-max-microvolt = <3300000>;
};
- ldo7_reg: regulator@10 {
- reg = <10>;
+ ldo7_reg: regulator@11 {
+ reg = <11>;
regulator-compatible = "ldo7";
regulator-min-microvolt = <1250000>;
regulator-max-microvolt = <3300000>;
};
- ldo8_reg: regulator@11 {
- reg = <11>;
+ ldo8_reg: regulator@12 {
+ reg = <12>;
regulator-compatible = "ldo8";
regulator-min-microvolt = <1250000>;
regulator-max-microvolt = <3300000>;
};
- ldo9_reg: regulator@12 {
- reg = <12>;
+ ldo9_reg: regulator@13 {
+ reg = <13>;
regulator-compatible = "ldo9";
regulator-min-microvolt = <1250000>;
regulator-max-microvolt = <3300000>;
