Re: [PATCH 1/3] iio: hx711: add data-ready-delay-ns property in DT
From: Jonathan Cameron
Date: Sun Jun 24 2018 - 09:11:03 EST
On Sat, 23 Jun 2018 20:54:21 +0200
Andreas Klinger <ak@xxxxxxxxxxxxx> wrote:
> add data-ready-delay-ns property for hx711 ADC
> this is the delay after rising PD_SCK until DOUT is read and assumed to be
> ready
>
> Signed-off-by: Andreas Klinger <ak@xxxxxxxxxxxxx>
One unconnected change. I'm not sure it's wrong as such but it should not
be in this patch.
> ---
> Documentation/devicetree/bindings/iio/adc/avia-hx711.txt | 9 ++++++++-
> 1 file changed, 8 insertions(+), 1 deletion(-)
>
> diff --git a/Documentation/devicetree/bindings/iio/adc/avia-hx711.txt b/Documentation/devicetree/bindings/iio/adc/avia-hx711.txt
> index b3629405f568..8c9bcaa4d750 100644
> --- a/Documentation/devicetree/bindings/iio/adc/avia-hx711.txt
> +++ b/Documentation/devicetree/bindings/iio/adc/avia-hx711.txt
> @@ -8,11 +8,18 @@ Required properties:
> See Documentation/devicetree/bindings/gpio/gpio.txt
> - avdd-supply: Definition of the regulator used as analog supply
>
> +Optional properties:
> + - data-ready-delay-ns: additional delay in nanoseconds between rising of
> + PD_SCK until DOUT is ready
> + should be less then maximum PD_SCK high time which
> + is 50000 in the datasheet
> +
> Example:
> -weight@0 {
> +weight {
Change has nothing to do with this patch...
> compatible = "avia,hx711";
> sck-gpios = <&gpio3 10 GPIO_ACTIVE_HIGH>;
> dout-gpios = <&gpio0 7 GPIO_ACTIVE_HIGH>;
> avdd-suppy = <&avdd>;
> + data-ready-delay-ns = <1000>;
> };
>