linux-kernel - Re: [PATCH v4 7/9] ASoC: atmel-classd: remove aclk clock from DT binding

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Date:   Tue, 25 Jul 2017 17:38:19 +0200
From:   Nicolas Ferre <nicolas.ferre@...rochip.com>
To:     Quentin Schulz <quentin.schulz@...e-electrons.com>,
        <mturquette@...libre.com>, <sboyd@...eaurora.org>,
        <robh+dt@...nel.org>, <mark.rutland@....com>,
        <lgirdwood@...il.com>, <broonie@...nel.org>,
        <alexandre.belloni@...e-electrons.com>, <linux@...linux.org.uk>,
        <boris.brezillon@...e-electrons.com>, <perex@...ex.cz>,
        <tiwai@...e.com>
CC:     <cyrille.pitchen@...ev4u.fr>,
        <thomas.petazzoni@...e-electrons.com>, <linux-clk@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <alsa-devel@...a-project.org>,
        <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v4 7/9] ASoC: atmel-classd: remove aclk clock from DT
 binding

On 25/07/2017 at 09:37, Quentin Schulz wrote:
> Since gclk (generated-clk) is now able to determine the rate of the
> audio_pll, there is no need for classd to have a direct phandle to the
> audio_pll while already having a phandle to gclk.
> 
> This binding is used by no board in mainline so it is safe to be
> modified.
> 
> Signed-off-by: Quentin Schulz <quentin.schulz@...e-electrons.com>
> Acked-by: Mark Brown <broonie@...nel.org>
> Acked-by: Rob Herring <robh@...nel.org>

Acked-by: Nicolas Ferre <nicolas.ferre@...rochip.com>

> ---
>  Documentation/devicetree/bindings/sound/atmel-classd.txt |  9 +++------
>  1 file changed, 3 insertions(+), 6 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/sound/atmel-classd.txt b/Documentation/devicetree/bindings/sound/atmel-classd.txt
> index 549e701..8985510 100644
> --- a/Documentation/devicetree/bindings/sound/atmel-classd.txt
> +++ b/Documentation/devicetree/bindings/sound/atmel-classd.txt
> @@ -13,13 +13,11 @@ Required properties:
>  	Must be "tx".
>  - clock-names
>  	Tuple listing input clock names.
> -	Required elements: "pclk", "gclk" and "aclk".
> +	Required elements: "pclk" and "gclk".
>  - clocks
>  	Please refer to clock-bindings.txt.
>  - assigned-clocks
>  	Should be <&classd_gclk>.
> -- assigned-clock-parents
> -	Should be <&audio_pll_pmc>.
>  
>  Optional properties:
>  - pinctrl-names, pinctrl-0
> @@ -45,10 +43,9 @@ classd: classd@...48000 {
>  			(AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1)
>  			| AT91_XDMAC_DT_PERID(47))>;
>  		dma-names = "tx";
> -		clocks = <&classd_clk>, <&classd_gclk>, <&audio_pll_pmc>;
> -		clock-names = "pclk", "gclk", "aclk";
> +		clocks = <&classd_clk>, <&classd_gclk>;
> +		clock-names = "pclk", "gclk";
>  		assigned-clocks = <&classd_gclk>;
> -		assigned-clock-parents = <&audio_pll_pmc>;
>  
>  		pinctrl-names = "default";
>  		pinctrl-0 = <&pinctrl_classd_default>;
> 


-- 
Nicolas Ferre