linux-kernel - Re: [PATCH v2 3/3] arm64: dts: sprd: use new 'dma-channels' property

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Date:   Wed, 4 May 2022 10:29:20 +0800
From:   Baolin Wang <baolin.wang7@...il.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc:     Vinod Koul <vkoul@...nel.org>, Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Orson Zhai <orsonzhai@...il.com>,
        Chunyan Zhang <zhang.lyra@...il.com>,
        dmaengine@...r.kernel.org,
        Devicetree List <devicetree@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 3/3] arm64: dts: sprd: use new 'dma-channels' property

On Tue, May 3, 2022 at 2:51 PM Krzysztof Kozlowski
<krzysztof.kozlowski@...aro.org> wrote:
>
> The '#dma-channels' property was deprecated in favor of one defined by
> generic dma-common DT bindings.  Add new property while keeping old one
> for backwards compatibility.
>
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>

Thanks.
Reviewed-by: Baolin Wang <baolin.wang7@...il.com>

> ---
>  arch/arm64/boot/dts/sprd/whale2.dtsi | 4 ++++
>  1 file changed, 4 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/sprd/whale2.dtsi b/arch/arm64/boot/dts/sprd/whale2.dtsi
> index 79b9591c37aa..89d91abbd5d1 100644
> --- a/arch/arm64/boot/dts/sprd/whale2.dtsi
> +++ b/arch/arm64/boot/dts/sprd/whale2.dtsi
> @@ -126,7 +126,9 @@ ap_dma: dma-controller@...00000 {
>                                 reg = <0 0x20100000 0 0x4000>;
>                                 interrupts = <GIC_SPI 42 IRQ_TYPE_LEVEL_HIGH>;
>                                 #dma-cells = <1>;
> +                               /* For backwards compatibility: */
>                                 #dma-channels = <32>;
> +                               dma-channels = <32>;
>                                 clock-names = "enable";
>                                 clocks = <&apahb_gate CLK_DMA_EB>;
>                         };
> @@ -272,7 +274,9 @@ agcp_dma: dma-controller@...80000 {
>                                 compatible = "sprd,sc9860-dma";
>                                 reg = <0 0x41580000 0 0x4000>;
>                                 #dma-cells = <1>;
> +                               /* For backwards compatibility: */
>                                 #dma-channels = <32>;
> +                               dma-channels = <32>;
>                                 clock-names = "enable", "ashb_eb";
>                                 clocks = <&agcp_gate CLK_AGCP_DMAAP_EB>,
>                                        <&agcp_gate CLK_AGCP_AP_ASHB_EB>;
> --
> 2.32.0
>


-- 
Baolin Wang