[PATCH 1/3] dt-bindings: i2c: gpio: Add 'transition-delay-ms' property

Bastien Curutchet
2024-05-27T11:39:20Z

The i2c-gpio-mux can be used to describe a multiplexer built upon
several i2c isolators having an enable pin (such as LTC4310). These
isolators can need some time between their enable pin's assertion and
the first i2c transfer.

Add a 'transition-delay-ms' property that indicates the delay to be
respected before doing the first i2c transfer.

Signed-off-by: Bastien Curutchet <bastien.curutchet@bootlin.com>
---
Documentation/devicetree/bindings/i2c/i2c-mux-gpio.yaml | 3 +++
1 file changed, 3 insertions(+)

diff --git a/Documentation/devicetree/bindings/i2c/i2c-mux-gpio.yaml b/Documentation/devicetree/bindings/i2c/i2c-mux-gpio.yaml
index f34cc7ad5a00..5bca58b78359 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-mux-gpio.yaml
+++ b/Documentation/devicetree/bindings/i2c/i2c-mux-gpio.yaml
@@ -57,6 +57,9 @@ properties:
last value used.
$ref: /schemas/types.yaml#/definitions/uint32

+ transition-delay-ms:
+ description: Delay to wait before doing any transfer when a new bus gets selected.
+
allOf:
- $ref: i2c-mux.yaml

--
2.44.0