linux-kernel - [PATCH v2 1/4] dt-bindings: soc: mediatek: devapc: Add bindings for MT8189

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Message-ID: <20251217063429.1157084-2-xiaoshun.xu@mediatek.corp-partner.google.com>
Date: Wed, 17 Dec 2025 14:34:10 +0800
From: Xiaoshun Xu <xiaoshun.xu@...iatek.corp-partner.google.com>
To: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>, Matthias Brugger
	<matthias.bgg@...il.com>, AngeloGioacchino Del Regno
	<angelogioacchino.delregno@...labora.com>, Xiaoshun Xu
	<xiaoshun.xu@...iatek.com>
CC: <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>, <linux-mediatek@...ts.infradead.org>,
	Sirius Wang <sirius.wang@...iatek.com>, Vince-wl Liu
	<vince-wl.liu@...iatek.com>,
	<Project_Global_Chrome_Upstream_Group@...iatek.com>
Subject: [PATCH v2 1/4] dt-bindings: soc: mediatek: devapc: Add bindings for MT8189


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From: Xiaoshun Xu <xiaoshun.xu@...iatek.com>

Extend the devapc device tree bindings to support the MediaTek MT8189
SoC. This includes:

- Adding "mediatek,mt8189-devapc" to the list of compatible strings.
- Introducing the "vio-idx-num" property to specify the number of bus
  slaves managed by devapc.

These changes enable proper configuration and integration of devapc on
MT8189 platforms, ensuring accurate device matching and resource
allocation in the device tree.

Signed-off-by: Xiaoshun Xu <xiaoshun.xu@...iatek.com>
---
 .../devicetree/bindings/soc/mediatek/devapc.yaml       | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/soc/mediatek/devapc.yaml b/Documentation/devicetree/bindings/soc/mediatek/devapc.yaml
index 99e2caafeadf..06a096440331 100644
--- a/Documentation/devicetree/bindings/soc/mediatek/devapc.yaml
+++ b/Documentation/devicetree/bindings/soc/mediatek/devapc.yaml
@@ -14,13 +14,14 @@ description: |
   analysis and countermeasures.

 maintainers:
-  - Neal Liu <neal.liu@...iatek.com>
+  - Xiaoshun Xu <xiaoshun.xu@...iatek.com>

 properties:
   compatible:
     enum:
       - mediatek,mt6779-devapc
       - mediatek,mt8186-devapc
+      - mediatek,mt8189-devapc

   reg:
     description: The base address of devapc register bank
@@ -30,6 +31,10 @@ properties:
     description: A single interrupt specifier
     maxItems: 1

+  vio-idx-num:
+    description: Describe the number of bus slaves controlled by devapc
+    $ref: /schemas/types.yaml#/definitions/uint32
+
   clocks:
     description: Contains module clock source and clock names
     maxItems: 1
@@ -42,8 +47,6 @@ required:
   - compatible
   - reg
   - interrupts
-  - clocks
-  - clock-names

 additionalProperties: false

@@ -55,6 +58,7 @@ examples:
     devapc: devapc@...07000 {
       compatible = "mediatek,mt6779-devapc";
       reg = <0x10207000 0x1000>;
+      vio-idx-num = <132>;
       interrupts = <GIC_SPI 168 IRQ_TYPE_LEVEL_LOW>;
       clocks = <&infracfg_ao CLK_INFRA_DEVICE_APC>;
       clock-names = "devapc-infra-clock";
--
2.45.2