On Fri, 9 Jun 2017 10:07:17 +0300
Eugen Hristev <eugen.hristev@xxxxxxxxxxxxx> wrote:
> Add property for the edge type of the hardware trigger pin ADTRG
>
> Signed-off-by: Eugen Hristev <eugen.hristev@xxxxxxxxxxxxx>
Hi Eugen,
CC the device tree maintainers and list for devicetree binding changes.
I've added them. This one is unusual enough it will need and Ack from
that direction (and I prefer to get them even for the trivial patches
when Rob and Mark aren't too busy!)
Jonathan
> ---
> Changes in v4:
> - Modified bindings to be similar with interrupts
>
> Documentation/devicetree/bindings/iio/adc/at91-sama5d2_adc.txt | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/iio/adc/at91-sama5d2_adc.txt b/Documentation/devicetree/bindings/iio/adc/at91-sama5d2_adc.txt
> index 3223684..552e7a8 100644
> --- a/Documentation/devicetree/bindings/iio/adc/at91-sama5d2_adc.txt
> +++ b/Documentation/devicetree/bindings/iio/adc/at91-sama5d2_adc.txt
> @@ -11,6 +11,11 @@ Required properties:
> - atmel,min-sample-rate-hz: Minimum sampling rate, it depends on SoC.
> - atmel,max-sample-rate-hz: Maximum sampling rate, it depends on SoC.
> - atmel,startup-time-ms: Startup time expressed in ms, it depends on SoC.
> + - atmel,trigger-edge-type: One of possible edge types for the ADTRG hardware
> + trigger pin. When the specific edge type is detected, the conversion will
> + start. Possible values are rising, falling, or both.
> + This property uses the IRQ edge types values: IRQ_TYPE_EDGE_RISING ,
> + IRQ_TYPE_EDGE_FALLING or IRQ_TYPE_EDGE_BOTH
>
> Example:
>
> @@ -25,4 +30,5 @@ adc: adc@fc030000 {
> atmel,startup-time-ms = <4>;
> vddana-supply = <&vdd_3v3_lp_reg>;
> vref-supply = <&vdd_3v3_lp_reg>;
> + atmel,trigger-edge-type = <IRQ_TYPE_EDGE_BOTH>;
> }
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