[net-next PATCH v2 06/15] dt-bindings: net: dsa: qca8k: document rgmii_1_8v bindings

[Ansuel Smith]

Document new qca,rgmii0_1_8v and qca,rgmii56_1_8v needed to setup
mac_pwr_sel register for qca8337 switch. Specific the use of this binding
that is used only in qca8337 and not in qca8327.

Signed-off-by: Ansuel Smith <ansuelsmth@xxxxxxxxx>
---
 Documentation/devicetree/bindings/net/dsa/qca8k.txt | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/dsa/qca8k.txt b/Documentation/devicetree/bindings/net/dsa/qca8k.txt
index 8c73f67c43ca..9383d6bf2426 100644
--- a/Documentation/devicetree/bindings/net/dsa/qca8k.txt
+++ b/Documentation/devicetree/bindings/net/dsa/qca8k.txt
@@ -13,6 +13,14 @@ Required properties:
 Optional properties:
 
 - reset-gpios: GPIO to be used to reset the whole device
+- qca,rgmii0-1-8v: Set the internal regulator to supply 1.8v for MAC0 port.
+                   This is needed for qca8337 and toggles the supply voltage
+                   from 1.5v to 1.8v. For the specific regs it was observed
+                   that this is needed only for ipq8064 and ipq8065 target.
+- qca,rgmii56-1-8v: Set the internal regulator to supply 1.8v for MAC5/6 port.
+                    This is needed for qca8337 and toggles the supply voltage
+                    from 1.5v to 1.8v. For the specific regs it was observed
+                    that this is needed only for ipq8065 target.
 
 Subnodes:
 
-- 
2.32.0