[PATCH 1/3] dt-bindings: iommu: mediatek: add mt6572

Roman Vivchar via B4 Relay devnull+rva333.protonmail.com at kernel.org
Wed Sep 9 07:14:05 PDT 2026


From: Roman Vivchar <rva333 at protonmail.com>

Add compatible string and header file for mt6572 IOMMU support.

Signed-off-by: Roman Vivchar <rva333 at protonmail.com>
---
 .../devicetree/bindings/iommu/mediatek,iommu.yaml  |  3 +++
 .../memory/mediatek,mt6572-memory-port.h           | 26 ++++++++++++++++++++++
 2 files changed, 29 insertions(+)

diff --git a/Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml b/Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml
index 79c573c47b08..d0ac4bd71911 100644
--- a/Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml
+++ b/Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml
@@ -72,6 +72,7 @@ properties:
       - enum:
           - mediatek,mt2701-m4u  # generation one
           - mediatek,mt2712-m4u  # generation two
+          - mediatek,mt6572-m4u  # generation one
           - mediatek,mt6779-m4u  # generation two
           - mediatek,mt6795-m4u  # generation two
           - mediatek,mt6893-iommu-mm         # generation two
@@ -134,6 +135,7 @@ properties:
       dt-binding/memory/mediatek,mt8189-memory-port.h for mt8189,
       dt-binding/memory/mt2701-larb-port.h for mt2701 and mt7623,
       dt-binding/memory/mt2712-larb-port.h for mt2712,
+      dt-binding/memory/mediatek,mt6572-memory-port.h for mt6572,
       dt-binding/memory/mt6779-larb-port.h for mt6779,
       dt-binding/memory/mt6795-larb-port.h for mt6795,
       dt-binding/memory/mediatek,mt6893-memory-port.h for mt6893,
@@ -162,6 +164,7 @@ allOf:
             enum:
               - mediatek,mt2701-m4u
               - mediatek,mt2712-m4u
+              - mediatek,mt6572-m4u
               - mediatek,mt6795-m4u
               - mediatek,mt6893-iommu-mm
               - mediatek,mt8173-m4u
diff --git a/include/dt-bindings/memory/mediatek,mt6572-memory-port.h b/include/dt-bindings/memory/mediatek,mt6572-memory-port.h
new file mode 100644
index 000000000000..6f8ddc98f1b1
--- /dev/null
+++ b/include/dt-bindings/memory/mediatek,mt6572-memory-port.h
@@ -0,0 +1,26 @@
+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
+/*
+ * Copyright (c) 2026 Roman Vivchar <rva333 at protonmail.com>
+ */
+
+#ifndef _DT_BINDINGS_MEMORY_MT6572_MEMORY_PORT_H_
+#define _DT_BINDINGS_MEMORY_MT6572_MEMORY_PORT_H_
+
+#define M4U_PORT_DISP_OVL		0
+#define M4U_PORT_DISP_RDMA		1
+#define M4U_PORT_DISP_WDMA		2
+#define M4U_PORT_DISP_DBI		3
+#define M4U_PORT_CAM_WDMA		4
+#define M4U_PORT_CMDQ			5
+#define M4U_PORT_VENC_BSDMA_VDEC_POST0	6
+#define M4U_PORT_MDP_RDMA		7
+#define M4U_PORT_MDP_WDMA		8
+#define M4U_PORT_MDP_ROTO		9
+#define M4U_PORT_MDP_ROTCO		10
+#define M4U_PORT_MDP_ROTVO		11
+#define M4U_PORT_VENC_MVQP		12
+#define M4U_PORT_VENC_MC		13
+#define M4U_PORT_VENC_CDMA_VDEC_CDMA	14
+#define M4U_PORT_VENC_REC_VDEC_WDMA	15
+
+#endif

-- 
2.55.0





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