[PATCH v10 2/4] dt-binding: i2c: add bus-supply property

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In some platforms, they disable the power-supply of i2c due
to power consumption reduction. This patch add bus-supply property.

Signed-off-by: Bibby Hsieh <bibby.hsieh@xxxxxxxxxxxx>
Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
---
 Documentation/devicetree/bindings/i2c/i2c.txt | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Documentation/devicetree/bindings/i2c/i2c.txt b/Documentation/devicetree/bindings/i2c/i2c.txt
index 9a53df4243c6..89d827805e89 100644
--- a/Documentation/devicetree/bindings/i2c/i2c.txt
+++ b/Documentation/devicetree/bindings/i2c/i2c.txt
@@ -98,6 +98,9 @@ wants to support one of the below features, it should adapt the bindings below.
 	Names of map programmable addresses.
 	It can contain any map needing another address than default one.
 
+- bus-supply
+	phandle to the regulator that provides power to i2c.
+
 Binding may contain optional "interrupts" property, describing interrupts
 used by the device. I2C core will assign "irq" interrupt (or the very first
 interrupt if not using interrupt names) as primary interrupt for the slave.
-- 
2.18.0




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