linux-kernel - Re: [PATCH v2 4/6] ARM: dts: am33xx: use new 'dma-channels/requests' properties

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Message-ID: <YmmJfInA0hNQOhDN@robh.at.kernel.org>
Date:   Wed, 27 Apr 2022 13:20:44 -0500
From:   Rob Herring <robh@...nel.org>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Benoît Cousson <bcousson@...libre.com>,
        Tony Lindgren <tony@...mide.com>, Sekhar Nori <nsekhar@...com>,
        Bartosz Golaszewski <brgl@...ev.pl>,
        Vinod Koul <vkoul@...nel.org>, linux-usb@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-omap@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        dmaengine@...r.kernel.org
Subject: Re: [PATCH v2 4/6] ARM: dts: am33xx: use new 'dma-channels/requests'
 properties

On Wed, Apr 27, 2022 at 06:11:24PM +0200, Krzysztof Kozlowski wrote:
> The '#dma-channels' and '#dma-requests' properties were deprecated in
> favor of these defined by generic dma-common DT bindings.
> 
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
> ---
>  arch/arm/boot/dts/am33xx.dtsi | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi
> index f6ec85d58dd1..55ffb0813ded 100644
> --- a/arch/arm/boot/dts/am33xx.dtsi
> +++ b/arch/arm/boot/dts/am33xx.dtsi
> @@ -461,8 +461,8 @@ cppi41dma: dma-controller@...0 {
>  				interrupts = <17>;
>  				interrupt-names = "glue";
>  				#dma-cells = <2>;
> -				#dma-channels = <30>;
> -				#dma-requests = <256>;
> +				dma-channels = <30>;
> +				dma-requests = <256>;

You could keep the old properties for compatibility and to apply 
immediately.

>  			};
>  		};
>  
> -- 
> 2.32.0
> 
>