From: "J. Neuschäfer" <j.ne@xxxxxxxxxx>
The Fairchild MM74HC595 and other compatible parts have a latch clock
input (also known as storage register clock input), which must be
clocked once in order to apply any value that was serially shifted in.
This patch adds a latch-gpios property to the binding to allow
specifying a GPIO that connects to the latch clock.
Signed-off-by: J. Neuschäfer <j.ne@xxxxxxxxxx>
---
Documentation/devicetree/bindings/gpio/fairchild,74hc595.yaml | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/Documentation/devicetree/bindings/gpio/fairchild,74hc595.yaml b/Documentation/devicetree/bindings/gpio/fairchild,74hc595.yaml
index 629cf9b2ab8e4a63fbe17f56792a46d2066d40c3..38d473a3852154e53faec88dc911dc0a4f9cbd1f 100644
--- a/Documentation/devicetree/bindings/gpio/fairchild,74hc595.yaml
+++ b/Documentation/devicetree/bindings/gpio/fairchild,74hc595.yaml
@@ -34,6 +34,10 @@ properties:
description: GPIO connected to the OE (Output Enable) pin.
maxItems: 1
+ latch-gpios:
+ description: GPIO connected to the latch clock or storage register clock pin.
+ maxItems: 1
+
patternProperties:
"^(hog-[0-9]+|.+-hog(-[0-9]+)?)$":
type: object
--
2.45.2
