[PATCH 1/2] regulator: dt-bindings: rtq2208: Add property to get ldo of RTQ2208 is adjustable or not

[Alina Yu]

Since there is no way to check is ldo is adjustable or not.
'richtek,use-fix-dvs' is added for that. user is supposed to know whether vout of ldo is adjustable.

Signed-off-by: Alina Yu <alina_yu@xxxxxxxxxxx>
---
 .../devicetree/bindings/regulator/richtek,rtq2208.yaml         | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/Documentation/devicetree/bindings/regulator/richtek,rtq2208.yaml b/Documentation/devicetree/bindings/regulator/richtek,rtq2208.yaml
index 609c066..3951679 100644
--- a/Documentation/devicetree/bindings/regulator/richtek,rtq2208.yaml
+++ b/Documentation/devicetree/bindings/regulator/richtek,rtq2208.yaml
@@ -75,6 +75,14 @@ properties:
         description:
           regulator description for ldo[1-2].
 
+        properties:
+          richtek,use-fix-dvs:
+            type: boolean
+            description: |
+              ldo vout ability is determined by this setting. If it's set, the voltage is unadjustable.
+              There is no risk-free method for software to determine whether the ldo vout is fixed or not.
+              Therefore, it can only be done in this way.
+
 required:
   - compatible
   - reg
@@ -180,6 +188,7 @@ examples:
             regulator-min-microvolt = <1200000>;
             regulator-max-microvolt = <1200000>;
             regulator-always-on;
+            richtek,use-fix-dvs;
             regulator-state-mem {
               regulator-on-in-suspend;
             };
@@ -188,6 +197,7 @@ examples:
             regulator-min-microvolt = <3300000>;
             regulator-max-microvolt = <3300000>;
             regulator-always-on;
+            richtek,use-fix-dvs;
             regulator-state-mem {
               regulator-on-in-suspend;
             };
-- 
2.7.4