linux-kernel - Re: [PATCH 20/32] ARM: dts: omap3-gta04: add devconf0 setup for mcbsp1 clock pins

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Message-ID: <20180725081251.GC7467@lenoch>
Date:   Wed, 25 Jul 2018 10:12:51 +0200
From:   Ladislav Michl <ladis@...ux-mips.org>
To:     "H. Nikolaus Schaller" <hns@...delico.com>
Cc:     Marek Belisko <marek@...delico.com>,
        Benoît Cousson <bcousson@...libre.com>,
        Tony Lindgren <tony@...mide.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        linux-omap@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, letux-kernel@...nphoenux.org
Subject: Re: [PATCH 20/32] ARM: dts: omap3-gta04: add devconf0 setup for
 mcbsp1 clock pins

On Wed, Jul 25, 2018 at 08:58:52AM +0200, H. Nikolaus Schaller wrote:
> McBSP1 needs sepcial "pinctrl" for the clocks.

Nit: "special" perhaps?

> Signed-off-by: H. Nikolaus Schaller <hns@...delico.com>
> ---
>  arch/arm/boot/dts/omap3-gta04.dtsi | 18 ++++++++++++++++++
>  1 file changed, 18 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/omap3-gta04.dtsi b/arch/arm/boot/dts/omap3-gta04.dtsi
> index 935a2a707737..f6abdef556c1 100644
> --- a/arch/arm/boot/dts/omap3-gta04.dtsi
> +++ b/arch/arm/boot/dts/omap3-gta04.dtsi
> @@ -187,6 +187,24 @@
>  		reset-gpios = <&tca6507 0 GPIO_ACTIVE_LOW>;	/* W2CBW003 reset through tca6507 */
>  	};
>  
> +	/* devconf0 setup for mcbsp1 clock pins */
> +	pinmux_mcbsp1@...02274 {
> +		compatible = "pinctrl-single";
> +		reg = <0x48002274 4>;   /* CONTROL_DEVCONF0 */
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +		pinctrl-single,bit-per-mux;
> +		pinctrl-single,register-width = <32>;
> +		pinctrl-single,function-mask = <0x7>;	/* MCBSP1 CLK pinmux */
> +		#pinctrl-cells = <2>;
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&mcbsp1_devconf0_pins>;
> +		mcbsp1_devconf0_pins: pinmux_mcbsp1_devconf0_pins {
> +			/*                   offset bits mask */
> +			pinctrl-single,bits = <0x00 0x08 0x1c>;	/* set MCBSP1_CLKR */
> +		};
> +	};
> +
>  	/* devconf1 setup for tvout pins */
>  	pinmux_tv_out@...022d8 {
>  		compatible = "pinctrl-single";
> -- 
> 2.12.2
> 
> --
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