linux-kernel - Re: [PATCH v5 3/3] ARM: berlin: add an ADC node for the BG2Q

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Message-ID: <555A0E19.10807@gmail.com>
Date:	Mon, 18 May 2015 18:06:49 +0200
From:	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>
To:	Antoine Tenart <antoine.tenart@...e-electrons.com>,
	jic23@...nel.org, knaack.h@....de, lars@...afoo.de,
	pmeerw@...erw.net
CC:	zmxu@...vell.com, jszhang@...vell.com, yrliao@...vell.com,
	linux-iio@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v5 3/3] ARM: berlin: add an ADC node for the BG2Q

On 18.05.2015 11:19, Antoine Tenart wrote:
> This patch adds the ADC node for the Berlin BG2Q, using the newly added
> Berlin IIO ADC driver.
>
> Signed-off-by: Antoine Tenart <antoine.tenart@...e-electrons.com>
> ---
>   arch/arm/boot/dts/berlin2q.dtsi | 7 +++++++
>   1 file changed, 7 insertions(+)
>
> diff --git a/arch/arm/boot/dts/berlin2q.dtsi b/arch/arm/boot/dts/berlin2q.dtsi
> index 187d056f7ad2..97c7e19e3ec6 100644
> --- a/arch/arm/boot/dts/berlin2q.dtsi
> +++ b/arch/arm/boot/dts/berlin2q.dtsi
> @@ -565,6 +565,13 @@
>   						function = "twsi3";
>   					};
>   				};
> +
> +				adc: adc {
> +					compatible = "marvell,berlin2-adc";
> +					interrupt-parent = <&sic>;

Antoine,

a side note on the interrupt-parent property above:

The parent simple-bus node already contains that property. If you
remove the property here, don't the interrupt routines go up the
hierarchy until they find an interrupt-parent set?

So, is it safe to get rid of the extra interrupt-parent property on
the adc node?

Sebastian

> +					interrupts = <12>, <14>;
> +					interrupt-names = "adc", "tsen";
> +				};
>   			};
>
>   			sic: interrupt-controller@...0 {
>

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