linux-kernel - Re: [PATCH v3 1/2] ARM: dts: vf610-colibri: Add PWM support

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Message-ID: <20140926022232.GI21077@dragon>
Date:	Fri, 26 Sep 2014 10:22:34 +0800
From:	Shawn Guo <shawn.guo@...escale.com>
To:	Bhuvanchandra DV <bhuvanchandra.dv@...adex.com>
CC:	<stefan@...er.ch>, <linux@....linux.org.uk>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 1/2] ARM: dts: vf610-colibri: Add PWM support

On Mon, Sep 22, 2014 at 03:38:11PM +0530, Bhuvanchandra DV wrote:
> The Colibri standard defines four pins as PWM outputs, two of them (PWM
> A and C) are routed to FTM instance 0 and the other two (PWM B and D)
> are routed to FTM instance 1. Hence enable both FTM instances for the
> Colibri module and mux the four pins accordingly.
> 
> Signed-off-by: Bhuvanchandra DV <bhuvanchandra.dv@...adex.com>

You should add Stefan's ACK tag.

> ---
>  arch/arm/boot/dts/vf610-colibri-eval-v3.dts |    8 ++++++++
>  arch/arm/boot/dts/vf610-colibri.dtsi        |   24 ++++++++++++++++++++++++
>  2 files changed, 32 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/vf610-colibri-eval-v3.dts b/arch/arm/boot/dts/vf610-colibri-eval-v3.dts
> index 7fb3066..00f63d9 100644
> --- a/arch/arm/boot/dts/vf610-colibri-eval-v3.dts
> +++ b/arch/arm/boot/dts/vf610-colibri-eval-v3.dts
> @@ -33,6 +33,14 @@
>  	status = "okay";
>  };
>  
> +&pwm0 {
> +	status = "okay";
> +};
> +
> +&pwm1 {
> +	status = "okay";
> +};
> +

I was trying to apply the patches, but found pwm1 is not available in
vf610.dtsi at all.  What tree is your patch generated against?  Or did I
miss any prerequisite patches?

Shawn

>  &uart0 {
>  	status = "okay";
>  };
> diff --git a/arch/arm/boot/dts/vf610-colibri.dtsi b/arch/arm/boot/dts/vf610-colibri.dtsi
> index 0cd8343..1f73c1c 100644
> --- a/arch/arm/boot/dts/vf610-colibri.dtsi
> +++ b/arch/arm/boot/dts/vf610-colibri.dtsi
> @@ -44,6 +44,16 @@
>  	arm,tag-latency = <3 2 3>;
>  };
>  
> +&pwm0 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_pwm0>;
> +};
> +
> +&pwm1 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_pwm1>;
> +};
> +
>  &uart0 {
>  	pinctrl-names = "default";
>  	pinctrl-0 = <&pinctrl_uart0>;
> @@ -97,6 +107,20 @@
>  			>;
>  		};
>  
> +		pinctrl_pwm0: pwm0grp {
> +			fsl,pins = <
> +				VF610_PAD_PTB0__FTM0_CH0		0x1182
> +				VF610_PAD_PTB1__FTM0_CH1		0x1182
> +			>;
> +		};
> +
> +		pinctrl_pwm1: pwm1grp {
> +			fsl,pins = <
> +				VF610_PAD_PTB8__FTM1_CH0		0x1182
> +				VF610_PAD_PTB9__FTM1_CH1		0x1182
> +			>;
> +		};
> +
>  		pinctrl_uart0: uart0grp {
>  			fsl,pins = <
>  				VF610_PAD_PTB10__UART0_TX		0x21a2
> -- 
> 1.7.9.5
> 
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