Some LEDs controllers are used with external pull-up for the interrupt
line and the I2C lines, so we might need to enable a regulator to bring
the lines into usable state. Otherwise, this might cause spurious
interrupts and reading from I2C will fail.
Document support for "vddio-supply" that is enabled by the aw2013 driver
so that the regulator gets enabled when needed.
Signed-off-by: Lin, Meng-Bo <linmengbo0689@xxxxxxxxxxxxxx>
---
Documentation/devicetree/bindings/leds/leds-aw2013.yaml | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/Documentation/devicetree/bindings/leds/leds-aw2013.yaml b/Documentation/devicetree/bindings/leds/leds-aw2013.yaml
index 08f3e1cfc1b1..79b69cf1d1fe 100644
--- a/Documentation/devicetree/bindings/leds/leds-aw2013.yaml
+++ b/Documentation/devicetree/bindings/leds/leds-aw2013.yaml
@@ -23,6 +23,11 @@ properties:
vcc-supply:
description: Regulator providing power to the "VCC" pin.
+ vddio-supply:
+ description: |
+ Optional regulator that provides digital I/O voltage,
+ e.g. for pulling up the interrupt line or the I2C pins.
+
"#address-cells":
const: 1
--
2.30.2
