Signed-off-by: Andrey Smirnov <andrew.smirnov@xxxxxxxxx>
---
Documentation/devicetree/bindings/gpio/gpio-sx150x.txt | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/Documentation/devicetree/bindings/gpio/gpio-sx150x.txt b/Documentation/devicetree/bindings/gpio/gpio-sx150x.txt
index 02b92ae..7574137 100644
--- a/Documentation/devicetree/bindings/gpio/gpio-sx150x.txt
+++ b/Documentation/devicetree/bindings/gpio/gpio-sx150x.txt
@@ -35,6 +35,14 @@ Optional properties:
polarity. For chips with fewer than 16 IO pins,
high-end bits are ignored.
+- semtech,io-pullup:
+- semtech,io-pulldown: A bit-mask which enables-or disables the
+ pull-up (pull-down) resistor for each IO line
+ in the expander. Setting the bit at position n
+ will enable the pull-down for the IO at the
+ corresponding offset. For chips with fewer
+ than 16 IO pins, high-end bits are ignored.
+
Example:
i2c_gpio_expander@20{
--
2.5.5
--
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