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From: Allen-KH Cheng <allen-kh.cheng@mediatek.com>
To: Mauro Carvalho Chehab <mchehab@kernel.org>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	Rob Herring <robh+dt@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>
Cc: <Project_Global_Chrome_Upstream_Group@mediatek.com>,
	<linux-media@vger.kernel.org>, <devicetree@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>,
	<linux-mediatek@lists.infradead.org>, <yunfei.dong@mediatek.com>,
	Allen-KH Cheng <allen-kh.cheng@mediatek.com>
Subject: [PATCH 2/6] media: dt-bindings: media: mediatek: Remove "dma-ranges" property for decoder
Date: Mon, 30 Jan 2023 11:33:01 +0800	[thread overview]
Message-ID: <20230130033305.31830-3-allen-kh.cheng@mediatek.com> (raw)
In-Reply-To: <20230130033305.31830-1-allen-kh.cheng@mediatek.com>

Because the decoder nodes already make use of the iommus property to
configure the IOMMU for address translations, having a dma-ranges
property makes no sense.

In fact, after commit f1ad5338a4d5 ("of: Fix "dma-ranges" handling for
bus controllers"), having a dma-ranges property causes IOMMU faults.

Remove the dma-ranges property and update the example.

Signed-off-by: Allen-KH Cheng <allen-kh.cheng@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
---
 .../bindings/media/mediatek,vcodec-subdev-decoder.yaml     | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/Documentation/devicetree/bindings/media/mediatek,vcodec-subdev-decoder.yaml b/Documentation/devicetree/bindings/media/mediatek,vcodec-subdev-decoder.yaml
index 46308cdaacc0..7efc70ae4406 100644
--- a/Documentation/devicetree/bindings/media/mediatek,vcodec-subdev-decoder.yaml
+++ b/Documentation/devicetree/bindings/media/mediatek,vcodec-subdev-decoder.yaml
@@ -76,11 +76,6 @@ properties:
       The node of system control processor (SCP), using
       the remoteproc & rpmsg framework.
 
-  dma-ranges:
-    maxItems: 1
-    description: |
-      Describes the physical address space of IOMMU maps to memory.
-
   "#address-cells":
     const: 2
 
@@ -151,7 +146,6 @@ required:
   - reg
   - iommus
   - mediatek,scp
-  - dma-ranges
   - ranges
 
 if:
@@ -185,7 +179,6 @@ examples:
             compatible = "mediatek,mt8192-vcodec-dec";
             mediatek,scp = <&scp>;
             iommus = <&iommu0 M4U_PORT_L4_VDEC_MC_EXT>;
-            dma-ranges = <0x1 0x0 0x0 0x40000000 0x0 0xfff00000>;
             #address-cells = <2>;
             #size-cells = <2>;
             ranges = <0 0 0 0x16000000 0 0x40000>;
-- 
2.18.0


  parent reply	other threads:[~2023-01-30  3:33 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-01-30  3:32 [PATCH 0/6] media: mediatek: Update video decoder nodes for MT8195 and MT8192 Allen-KH Cheng
2023-01-30  3:33 ` [PATCH 1/6] media: dt-bindings: media: mediatek: Rename child node names for decoder Allen-KH Cheng
2023-01-30  3:33 ` Allen-KH Cheng [this message]
2023-01-30  3:33 ` [PATCH 3/6] arm64: dts: mt8192: Add video-codec nodes Allen-KH Cheng
2023-01-30  3:33 ` [PATCH 4/6] media: dt-bindings: media: mediatek: vcodec: adapt to the 'clock-names' of different platforms Allen-KH Cheng
2023-01-30  3:33 ` [PATCH 5/6] media: dt-bindings: media: mediatek: vcodec: Change the max reg value to 2 Allen-KH Cheng
2023-01-30  3:33 ` [PATCH 6/6] arm64: dts: mt8195: Add video decoder node Allen-KH Cheng
2023-02-01  8:23 ` [PATCH 0/6] media: mediatek: Update video decoder nodes for MT8195 and MT8192 Chen-Yu Tsai
2023-02-01  8:23   ` Chen-Yu Tsai
2023-02-16 12:12   ` Allen-KH Cheng (程冠勳)
2023-02-16 12:12     ` Allen-KH Cheng (程冠勳)

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