linux-kernel - [PATCH v6 1/4] dt-bindings: dma: snps,dw-axi-dmac: constrain the items of resets for JH7110 dma

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20230322094820.24738-2-walker.chen@starfivetech.com>
Date:   Wed, 22 Mar 2023 17:48:17 +0800
From:   Walker Chen <walker.chen@...rfivetech.com>
To:     Eugeniy Paltsev <Eugeniy.Paltsev@...opsys.com>,
        Vinod Koul <vkoul@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor.dooley@...rochip.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        "Emil Renner Berthing" <emil.renner.berthing@...onical.com>,
        Walker Chen <walker.chen@...rfivetech.com>
CC:     <dmaengine@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-riscv@...ts.infradead.org>
Subject: [PATCH v6 1/4] dt-bindings: dma: snps,dw-axi-dmac: constrain the items of resets for JH7110 dma

The DMA controller needs two reset items to work properly on JH7110 SoC,
so there is need to constrain the items' value to 2, other platforms
have 1 reset item at most.

Reviewed-by: Rob Herring <robh@...nel.org>
Signed-off-by: Walker Chen <walker.chen@...rfivetech.com>
---
 .../bindings/dma/snps,dw-axi-dmac.yaml        | 23 ++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml b/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml
index 5c81194e2300..363cf8bd150d 100644
--- a/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml
+++ b/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml
@@ -20,6 +20,7 @@ properties:
     enum:
       - snps,axi-dma-1.01a
       - intel,kmb-axi-dma
+      - starfive,jh7110-axi-dma
 
   reg:
     minItems: 1
@@ -58,7 +59,8 @@ properties:
     maximum: 8
 
   resets:
-    maxItems: 1
+    minItems: 1
+    maxItems: 2
 
   snps,dma-masters:
     description: |
@@ -109,6 +111,25 @@ required:
   - snps,priority
   - snps,block-size
 
+if:
+  properties:
+    compatible:
+      contains:
+        enum:
+          - starfive,jh7110-axi-dma
+then:
+  properties:
+    resets:
+      minItems: 2
+      items:
+        - description: AXI reset line
+        - description: AHB reset line
+        - description: module reset
+else:
+  properties:
+    resets:
+      maxItems: 1
+
 additionalProperties: false
 
 examples:
-- 
2.17.1