[PATCH 2/5] dt-bindings: mfd: da9062: add regulator voltage selection documentation

[Marco Felsch]

Add the documentation which describe the voltage selection gpio support.
This property can be applied to each subnode within the 'regulators'
node so each regulator can be configured differently.

Signed-off-by: Marco Felsch <m.felsch@xxxxxxxxxxxxxx>
---
 Documentation/devicetree/bindings/mfd/da9062.txt | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/Documentation/devicetree/bindings/mfd/da9062.txt b/Documentation/devicetree/bindings/mfd/da9062.txt
index edca653a5777..9d9820d8177d 100644
--- a/Documentation/devicetree/bindings/mfd/da9062.txt
+++ b/Documentation/devicetree/bindings/mfd/da9062.txt
@@ -66,6 +66,15 @@ Sub-nodes:
   details of individual regulator device can be found in:
   Documentation/devicetree/bindings/regulator/regulator.txt
 
+  Optional regulator device-specific properties:
+  - dlg,vsel-sense-gpios : The GPIO reference which should be used by the
+    regulator to switch the voltage between active/suspend voltage settings. If
+    the signal is active the active-settings are applied else the suspend
+    settings are applied. Attention: Sharing the same gpio for other purposes
+    or across multiple regulators is possible but the gpio settings must be the
+    same. Also the gpio phandle must refer to to the dlg,da9062-gpio device
+    other gpios are not allowed and make no sense.
+
 - rtc : This node defines settings required for the Real-Time Clock associated
   with the DA9062. There are currently no entries in this binding, however
   compatible = "dlg,da9062-rtc" should be added if a node is created.
-- 
2.20.1