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71 From: Rui Salvaterra <rsalvaterra@gmail.com>
72 To: linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org,
73 linux-kernel@vger.kernel.org
74 Cc: matthias.bgg@gmail.com, ryder.lee@mediatek.com, daniel@makrotopia.org,
75 Rui Salvaterra <rsalvaterra@gmail.com>
76 Subject: [PATCH] arm64: dts: mt7622: specify the number of DMA requests
77 Date: Fri, 29 Apr 2022 09:42:25 +0100
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100 linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org
101
102 The MT7622 device tree never bothered to specify the number of virtual DMA
103 channels for the HSDMA controller, always falling back to the default value of
104 3. Make this value explicit, in order to avoid the following dmesg notification:
105
106 mtk_hsdma 1b007000.dma-controller: Using 3 as missing dma-requests property
107
108 Signed-off-by: Rui Salvaterra <rsalvaterra@gmail.com>
109 ---
110 arch/arm64/boot/dts/mediatek/mt7622.dtsi | 1 +
111 1 file changed, 1 insertion(+)
112
113 --- a/arch/arm64/boot/dts/mediatek/mt7622.dtsi
114 +++ b/arch/arm64/boot/dts/mediatek/mt7622.dtsi
115 @@ -941,6 +941,7 @@
116 clock-names = "hsdma";
117 power-domains = <&scpsys MT7622_POWER_DOMAIN_ETHSYS>;
118 #dma-cells = <1>;
119 + dma-requests = <3>;
120 };
121
122 pcie_mirror: pcie-mirror@10000400 {
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