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From: Yong Wu <yong.wu@mediatek.com>
To: Joerg Roedel <joro@8bytes.org>,
Matthias Brugger <matthias.bgg@gmail.com>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Rob Herring <robh+dt@kernel.org>
CC: Will Deacon <will@kernel.org>, Robin Murphy <robin.murphy@arm.com>,
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"AngeloGioacchino Del Regno"
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<anan.sun@mediatek.com>, Yong Wu <yong.wu@mediatek.com>
Subject: [PATCH v3 09/11] arm64: dts: mt8195: Add dma-ranges for the parent
"soc" node
Date: Tue, 14 Feb 2023 11:11:12 +0800
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| Series |
Adjust the dma-ranges for MTK IOMMU
|
|
Commit Message
Yong Wu
Feb. 14, 2023, 3:11 a.m. UTC
After commit f1ad5338a4d5 ("of: Fix "dma-ranges" handling for bus
controllers"), the dma-ranges property is not allowed for
the leaf node. But our iommu/dma-ranges is 16GB, we still expect
separate the 16GB dma-range like:
a) display is in 0 - 4GB;
b) vcodec is in 4GB - 8GB;
c) camera is in 8GB - 12GB.
We can not expect all the masters add a parent node for them,
especial for the existed drivers/nodes.
Thus, we add whole the 16GB dma-ranges in the parent "soc" node.
Signed-off-by: Yong Wu <yong.wu@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
arch/arm64/boot/dts/mediatek/mt8195.dtsi | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm64/boot/dts/mediatek/mt8195.dtsi b/arch/arm64/boot/dts/mediatek/mt8195.dtsi index 8f1264d5290b..0f5a31ca1b70 100644 --- a/arch/arm64/boot/dts/mediatek/mt8195.dtsi +++ b/arch/arm64/boot/dts/mediatek/mt8195.dtsi @@ -364,6 +364,7 @@ #size-cells = <2>; compatible = "simple-bus"; ranges; + dma-ranges = <0x0 0x0 0x0 0x0 0x4 0x0>; gic: interrupt-controller@c000000 { compatible = "arm,gic-v3";