linux-kernel - Re: [PATCH v1 4/4] ARM: dts: add pwm node for r40.

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Message-ID: <20180111124752.2ljspnaclwgz2s62@flea.lan>
Date:   Thu, 11 Jan 2018 13:47:52 +0100
From:   Maxime Ripard <maxime.ripard@...e-electrons.com>
To:     hao_zhang <hao5781286@...il.com>
Cc:     thierry.reding@...il.com, robh+dt@...nel.org, mark.rutland@....com,
        linux@...linux.org.uk, wens@...e.org, linus.walleij@...aro.org,
        linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-pwm@...r.kernel.org
Subject: Re: [PATCH v1 4/4] ARM: dts: add pwm node for r40.

Hi,

On Thu, Jan 11, 2018 at 07:34:12PM +0800, hao_zhang wrote:
> This patch add pwm node for r40.
> 
> Signed-off-by: hao_zhang <hao5781286@...il.com>
> ---
>  arch/arm/boot/dts/sun8i-r40.dtsi | 13 +++++++++++++
>  1 file changed, 13 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/sun8i-r40.dtsi b/arch/arm/boot/dts/sun8i-r40.dtsi
> index 173dcc1..84c963c 100644
> --- a/arch/arm/boot/dts/sun8i-r40.dtsi
> +++ b/arch/arm/boot/dts/sun8i-r40.dtsi
> @@ -295,6 +295,11 @@
>  				bias-pull-up;
>  			};
>  
> +			pwm_pins: pwm-pins {
> +				pins = "PB2", "PB3";
> +				function = "pwm";
> +			};
> +

Is it the only combination of pins that is usable?

If so, you can add the pinctrl-0 property directly in the pwm nodes.

Thanks!
Maxime

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

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