regulator: lp873x: Add support for populating input supply

In order to have a proper topology of regulators for a platform, each
registering regulator needs to populate supply_name field for identifying
its supply's name. Add supply_name field for lp873x regulators.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Acked-for-MFD-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/Documentation/devicetree/bindings/mfd/lp873x.txt b/Documentation/devicetree/bindings/mfd/lp873x.txt
index 52766c2035f759509e80312f1905a052002b8dcd..ae9cf39bd101f5a704e59e2cdcb0af0584558c3a 100644 (file)
--- a/Documentation/devicetree/bindings/mfd/lp873x.txt
+++ b/Documentation/devicetree/bindings/mfd/lp873x.txt
@@ -7,6 +7,9 @@ Required properties:
   - #gpio-cells:       Should be two.  The first cell is the pin number and
                        the second cell is used to specify flags.
                        See ../gpio/gpio.txt for more information.
+  - xxx-in-supply:     Phandle to parent supply node of each regulator
+                       populated under regulators node. xxx can be
+                       buck0, buck1, ldo0 or ldo1.
   - regulators:        List of child nodes that specify the regulator
                        initialization data.
 Example:
@@ -17,6 +20,11 @@ pmic: lp8733@60 {
        gpio-controller;
        #gpio-cells = <2>;
 
+       buck0-in-supply = <&vsys_3v3>;
+       buck1-in-supply = <&vsys_3v3>;
+       ldo0-in-supply = <&vsys_3v3>;
+       ldo1-in-supply = <&vsys_3v3>;
+
        regulators {
                lp8733_buck0: buck0 {
                        regulator-name = "lp8733-buck0";

diff --git a/drivers/regulator/lp873x-regulator.c b/drivers/regulator/lp873x-regulator.c
index e504b9148226c3652ef6151e670bbc20e1cf9e10..70e3df653381c36262ee180e3c773ad10eccf1ff 100644 (file)
--- a/drivers/regulator/lp873x-regulator.c
+++ b/drivers/regulator/lp873x-regulator.c
@@ -24,6 +24,7 @@
        [_id] = {                                                       \
                .desc = {                                               \
                        .name                   = _name,                \
+                       .supply_name            = _of "-in",            \
                        .id                     = _id,                  \
                        .of_match               = of_match_ptr(_of),    \
                        .regulators_node        = of_match_ptr("regulators"),\