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

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Date:   Tue,  3 May 2022 08:51:47 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Vinod Koul <vkoul@...nel.org>, Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Orson Zhai <orsonzhai@...il.com>,
        Baolin Wang <baolin.wang7@...il.com>,
        Chunyan Zhang <zhang.lyra@...il.com>,
        dmaengine@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH v2 3/3] arm64: dts: sprd: use new 'dma-channels' property

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>
---
 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