linux-kernel - Re: [PATCH 3/3] ARM64: dts: meson-axg: add PWM DT info for Meson-Axg SoC

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Message-ID: <1512379059.2574.17.camel@baylibre.com>
Date:   Mon, 04 Dec 2017 10:17:39 +0100
From:   Jerome Brunet <jbrunet@...libre.com>
To:     Yixun Lan <yixun.lan@...ogic.com>,
        Thierry Reding <thierry.reding@...il.com>,
        Kevin Hilman <khilman@...libre.com>, linux-pwm@...r.kernel.org,
        linux-amlogic@...ts.infradead.org
Cc:     Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org,
        Neil Armstrong <narmstrong@...libre.com>,
        Mark Rutland <mark.rutland@....com>,
        Carlo Caione <carlo@...one.org>, Jian Hu <jian.hu@...ogic.com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/3] ARM64: dts: meson-axg: add PWM DT info for
 Meson-Axg SoC

On Mon, 2017-12-04 at 14:00 +0800, Yixun Lan wrote:
> From: Jian Hu <jian.hu@...ogic.com>
> 
> Add PWM DT info for the Amlogic's Meson-Axg SoC.
> 
> Signed-off-by: Jian Hu <jian.hu@...ogic.com>
> Signed-off-by: Yixun Lan <yixun.lan@...ogic.com>
> ---
>  arch/arm64/boot/dts/amlogic/meson-axg.dtsi | 120
> +++++++++++++++++++++++++++++
>  1 file changed, 120 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
> b/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
> index 92f65eec3e18..f7f228701df1 100644
> --- a/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
> +++ b/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
> @@ -177,6 +177,24 @@
> 

[...]

> 
> @@ -435,6 +537,24 @@
>  				clock-names = "clk_i2c";
>  			};
>  
> +			pwm_AO_ab: pwm@...0 {
> +				compatible = "amlogic,meson-axg-ao-pwm";
> +				reg = <0x0 0x07000 0x0 0x20>;
> +				#pwm-cells = <3>;
> +				clocks = <&xtal>, <&xtal>;
> +				clock-names = "clkin0", "clkin1";

like gxbb, "amlogic,meson-axg-ao-pwm" does not have such clock bindings,
Later on, if we want to "correctly" get the clock from DT, it will have to gothrough a new compatible, I guess. 

> +				status = "disabled";
> +			};
> +
> +			pwm_AO_cd: pwm@...0 {
> +				compatible = "amlogic,axg-ao-pwm";
> +				reg = <0x0 0x02000  0x0 0x20>;
> +				#pwm-cells = <3>;
> +				clocks = <&xtal>, <&xtal>;
> +				clock-names = "clkin0", "clkin1";
> +				status = "disabled";
> +			};
> +
>  			uart_AO: serial@...0 {
>  				compatible = "amlogic,meson-gx-uart",
> "amlogic,meson-ao-uart";
>  				reg = <0x0 0x3000 0x0 0x18>;