Commit dc53dbe3 authored by Bastien Curutchet's avatar Bastien Curutchet Committed by Andi Shyti
Browse files

dt-bindings: i2c: mux-gpio: Add 'settle-time-us' property 



I2C MUXes described by the i2c-gpio-mux sometimes need a significant
amount of time to switch from a bus to another. When a new bus is
selected, the first I2C transfer can fail if it occurs too early. There
is no way to describe this transition delay that has to be waited before
starting the first I2C transfer.

Add a 'settle-time-us' property that indicates the delay to be
respected before doing the first i2c transfer.

Signed-off-by: default avatarBastien Curutchet <bastien.curutchet@bootlin.com>
Reviewed-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: default avatarAndi Shyti <andi.shyti@kernel.org>
Acked-by: default avatarPeter Rosin <peda@axentia.se>
Signed-off-by: default avatarAndi Shyti <andi.shyti@kernel.org>
parent 064e9113

Documentation/devicetree/bindings/i2c/i2c-mux-gpio.yaml

+3 −0
Original line number Diff line number Diff line
@@ -57,6 +57,9 @@ properties: 
      last value used.

    $ref: /schemas/types.yaml#/definitions/uint32



  settle-time-us:

    description: Delay to wait before doing any transfer when a new bus gets selected.



allOf:

  - $ref: i2c-mux.yaml