Hello,

On Wed, Oct 11, 2017 at 01:05:38PM +0200, Lothar Waßmann wrote:
> diff --git a/arch/arm/boot/dts/imx28-tx28.dts 
> b/arch/arm/boot/dts/imx28-tx28.dts
> index 211e67d..3c852f7 100644
> --- a/arch/arm/boot/dts/imx28-tx28.dts
> +++ b/arch/arm/boot/dts/imx28-tx28.dts
> @@ -328,8 +328,7 @@
>               reg = <0x20>;
>               pinctrl-names = "default";
>               pinctrl-0 = <&tx28_pca9554_pins>;
> -             interrupt-parent = <&gpio3>;
> -             interrupts = <28 0>;
> +             interrupts-extended = <&gpio3 28 IRQ_TYPE_NONE>;
>               gpio-controller;
>               #gpio-cells = <2>;
>               interrupt-controller;

While interrupts-extended looks nice,
Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
has:

        "interrupts-extended" should only be used when a device has
        multiple interrupt parents.

If this is still true, this patch is wrong.

Best regards
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |

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