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Message-ID: <20230307023507.13306-10-yong.wu@mediatek.com>
Date: Tue, 7 Mar 2023 10:35:05 +0800
From: Yong Wu <yong.wu@...iatek.com>
To: Joerg Roedel <joro@...tes.org>,
Matthias Brugger <matthias.bgg@...il.com>,
Mauro Carvalho Chehab <mchehab@...nel.org>,
Rob Herring <robh+dt@...nel.org>
CC: Will Deacon <will@...nel.org>, Robin Murphy <robin.murphy@....com>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Hans Verkuil <hverkuil@...all.nl>, <nfraprado@...labora.com>,
<linux-media@...r.kernel.org>, <devicetree@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>,
<linux-mediatek@...ts.infradead.org>,
<linux-kernel@...r.kernel.org>, <iommu@...ts.linux.dev>,
AngeloGioacchino Del Regno
<angelogioacchino.delregno@...labora.com>,
<mingyuan.ma@...iatek.com>, <yf.wang@...iatek.com>,
<jianjiao.zeng@...iatek.com>,
Yunfei Dong <yunfei.dong@...iatek.com>,
kyrie wu <kyrie.wu@...iatek.corp-partner.google.com>,
<chengci.xu@...iatek.com>, <youlin.pei@...iatek.com>,
<anan.sun@...iatek.com>, Yong Wu <yong.wu@...iatek.com>
Subject: [PATCH v5 09/11] arm64: dts: mt8195: Add dma-ranges for the parent "soc" node
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@...iatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.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 @@ soc {
#size-cells = <2>;
compatible = "simple-bus";
ranges;
+ dma-ranges = <0x0 0x0 0x0 0x0 0x4 0x0>;
gic: interrupt-controller@...0000 {
compatible = "arm,gic-v3";
--
2.25.1
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