Group-based drivers use a groups property to define on which groups a
mux function is applied to. Document it.

Signed-off-by: Antoine Tenart <[email protected]>
---
 Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt 
b/Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
index fa40a177164c..7a1adc08b366 100644
--- a/Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
+++ b/Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
@@ -141,6 +141,7 @@ Supported generic properties are:
 pins                   - the list of pins that properties in the node
                          apply to
 function               - the mux function to select
+groups                 - a list of groups a mux function is applied to
 bias-disable           - disable any pin bias
 bias-high-impedance    - high impedance mode ("third-state", "floating")
 bias-bus-hold          - latch weakly
-- 
1.9.1

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