regulator: dt: add policy to have property "regulator-compatible"

Add the policy for regulator DT such that if device have multiple
regulator and its binding contains a child node that describes each
regulator then each regulator child node must have the property
"regulator-compatible" which matches with regulator name of their
hardware counterparts.
Modify the DT documentation of regulator devices to reflect this
policy.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 41 insertions, 13 deletions

diff --git a/Documentation/devicetree/bindings/mfd/tps65910.txt b/Documentation/devicetree/bindings/mfd/tps65910.txt
index 645f5eaadb3..b51d2066599 100644
--- a/Documentation/devicetree/bindings/mfd/tps65910.txt
+++ b/Documentation/devicetree/bindings/mfd/tps65910.txt
@@ -17,8 +17,9 @@ Required properties:
   device need to be present. The definition for each of these nodes is defined
   using the standard binding for regulators found at
   Documentation/devicetree/bindings/regulator/regulator.txt.
+  The regulator is matched with the regulator-compatible.
 
-  The valid names for regulators are:
+  The valid regulator-compatible values are:
   tps65910: vrtc, vio, vdd1, vdd2, vdd3, vdig1, vdig2, vpll, vdac, vaux1,
             vaux2, vaux33, vmmc
   tps65911: vrtc, vio, vdd1, vdd3, vddctrl, ldo1, ldo2, ldo3, ldo4, ldo5,
@@ -57,73 +58,100 @@ Example:
                 ti,en-gpio-sleep = <0 0 1 0 0 0 0 0 0>;
 
                 regulators {
-                        vdd1_reg: vdd1 {
+                        #address-cells = <1>;
+                        #size-cells = <0>;
+
+                        vdd1_reg: regulator@0 {
+                                regulator-compatible = "vdd1";
+                                reg = <0>;
                                 regulator-min-microvolt = < 600000>;
                                 regulator-max-microvolt = <1500000>;
                                 regulator-always-on;
                                 regulator-boot-on;
                                 ti,regulator-ext-sleep-control = <0>;
                         };
-                        vdd2_reg: vdd2 {
+                        vdd2_reg: regulator@1 {
+                                regulator-compatible = "vdd2";
+                                reg = <1>;
                                 regulator-min-microvolt = < 600000>;
                                 regulator-max-microvolt = <1500000>;
                                 regulator-always-on;
                                 regulator-boot-on;
                                 ti,regulator-ext-sleep-control = <4>;
                         };
-                        vddctrl_reg: vddctrl {
+                        vddctrl_reg: regulator@2 {
+                                regulator-compatible = "vddctrl";
+                                reg = <2>;
                                 regulator-min-microvolt = < 600000>;
                                 regulator-max-microvolt = <1400000>;
                                 regulator-always-on;
                                 regulator-boot-on;
                                 ti,regulator-ext-sleep-control = <0>;
                         };
-                        vio_reg: vio {
+                        vio_reg: regulator@3 {
+                                regulator-compatible = "vio";
+                                reg = <3>;
                                 regulator-min-microvolt = <1500000>;
                                 regulator-max-microvolt = <1800000>;
                                 regulator-always-on;
                                 regulator-boot-on;
                                 ti,regulator-ext-sleep-control = <1>;
                         };
-                        ldo1_reg: ldo1 {
+                        ldo1_reg: regulator@4 {
+                                regulator-compatible = "ldo1";
+                                reg = <4>;
                                 regulator-min-microvolt = <1000000>;
                                 regulator-max-microvolt = <3300000>;
                                 ti,regulator-ext-sleep-control = <0>;
                         };
-                        ldo2_reg: ldo2 {
+                        ldo2_reg: regulator@5 {
+                                regulator-compatible = "ldo2";
+                                reg = <5>;
                                 regulator-min-microvolt = <1050000>;
                                 regulator-max-microvolt = <1050000>;
                                 ti,regulator-ext-sleep-control = <0>;
                         };
-                        ldo3_reg: ldo3 {
+                        ldo3_reg: regulator@6 {
+                                regulator-compatible = "ldo3";
+                                reg = <6>;
                                 regulator-min-microvolt = <1000000>;
                                 regulator-max-microvolt = <3300000>;
                                 ti,regulator-ext-sleep-control = <0>;
                         };
-                        ldo4_reg: ldo4 {
+                        ldo4_reg: regulator@7 {
+                                regulator-compatible = "ldo4";
+                                reg = <7>;
                                 regulator-min-microvolt = <1000000>;
                                 regulator-max-microvolt = <3300000>;
                                 regulator-always-on;
                                 ti,regulator-ext-sleep-control = <0>;
                         };
-                        ldo5_reg: ldo5 {
+                        ldo5_reg: regulator@8 {
+                                regulator-compatible = "ldo5";
+                                reg = <8>;
                                 regulator-min-microvolt = <1000000>;
                                 regulator-max-microvolt = <3300000>;
                                 ti,regulator-ext-sleep-control = <0>;
                         };
-                        ldo6_reg: ldo6 {
+                        ldo6_reg: regulator@9 {
+                                regulator-compatible = "ldo6";
+                                reg = <9>;
                                 regulator-min-microvolt = <1200000>;
                                 regulator-max-microvolt = <1200000>;
                                 ti,regulator-ext-sleep-control = <0>;
                         };
-                        ldo7_reg: ldo7 {
+                        ldo7_reg: regulator@10 {
+                                regulator-compatible = "ldo7";
+                                reg = <10>;
                                 regulator-min-microvolt = <1200000>;
                                 regulator-max-microvolt = <1200000>;
                                 regulator-always-on;
                                 regulator-boot-on;
                                 ti,regulator-ext-sleep-control = <1>;
                         };
-                        ldo8_reg: ldo8 {
+                        ldo8_reg: regulator@11 {
+                                regulator-compatible = "ldo8";
+                                reg = <11>;
                                 regulator-min-microvolt = <1000000>;
                                 regulator-max-microvolt = <3300000>;
                                 regulator-always-on;