linux-kernel - Re: [PATCH v2 1/4] ARM: dts: sun8i: Add PWM pin in H3

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Date:   Wed, 31 Aug 2016 18:20:02 +0200
From:   Maxime Ripard <maxime.ripard@...e-electrons.com>
To:     Milo Kim <woogyom.kim@...il.com>
Cc:     Rob Herring <robh+dt@...nel.org>, Chen-Yu Tsai <wens@...e.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Thierry Reding <thierry.reding@...il.com>,
        devicetree@...r.kernel.org, linux-gpio@...r.kernel.org,
        linux-pwm@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/4] ARM: dts: sun8i: Add PWM pin in H3

Hi Milo,

On Wed, Aug 31, 2016 at 05:25:17PM +0900, Milo Kim wrote:
> H3 PA5 pin is assigned for single PWM channel.
> 
> Cc: Rob Herring <robh+dt@...nel.org>
> Cc: Maxime Ripard <maxime.ripard@...e-electrons.com>
> Cc: Chen-Yu Tsai <wens@...e.org>
> Cc: devicetree@...r.kernel.org
> Cc: linux-arm-kernel@...ts.infradead.org
> Cc: linux-kernel@...r.kernel.org
> Signed-off-by: Milo Kim <woogyom.kim@...il.com>
> ---
>  arch/arm/boot/dts/sun8i-h3.dtsi | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/sun8i-h3.dtsi b/arch/arm/boot/dts/sun8i-h3.dtsi
> index fdf9fdb..05d0c4b 100644
> --- a/arch/arm/boot/dts/sun8i-h3.dtsi
> +++ b/arch/arm/boot/dts/sun8i-h3.dtsi
> @@ -360,6 +360,13 @@
>  				allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
>  			};
>  
> +			pwm0_pin_a: pwm0@0 {
> +				allwinner,pins = "PA5";
> +				allwinner,function = "pwm0";
> +				allwinner,drive = <SUN4I_PINCTRL_10_MA>;
> +				allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
> +			};
> +

Is it used on any boards?

If not, we have the policy of not merging the pinctrl nodes that are
not used by anyone to avoid bloating the DT for no particular reason.

Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com

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