linux-kernel - [PATCH v6 04/11] dt-bindings: PCI: mediatek-gen3: add SoC based clock config

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Message-Id: <20221118190126.100895-5-linux@fw-web.de>
Date:   Fri, 18 Nov 2022 20:01:19 +0100
From:   Frank Wunderlich <linux@...web.de>
To:     linux-mediatek@...ts.infradead.org
Cc:     Frank Wunderlich <frank-w@...lic-files.de>,
        Ryder Lee <ryder.lee@...iatek.com>,
        Jianjun Wang <jianjun.wang@...iatek.com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Chunfeng Yun <chunfeng.yun@...iatek.com>,
        Kishon Vijay Abraham I <kishon@...com>,
        Vinod Koul <vkoul@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Paolo Abeni <pabeni@...hat.com>,
        Lorenzo Bianconi <lorenzo@...nel.org>,
        Bo Jiao <Bo.Jiao@...iatek.com>, linux-pci@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-phy@...ts.infradead.org, linux-usb@...r.kernel.org,
        Rob Herring <robh@...nel.org>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
Subject: [PATCH v6 04/11] dt-bindings: PCI: mediatek-gen3: add SoC based clock config

From: Frank Wunderlich <frank-w@...lic-files.de>

The PCIe driver covers different SOC which needing different clock
configs. Define them based on compatible.

Signed-off-by: Frank Wunderlich <frank-w@...lic-files.de>
Reviewed-by: Rob Herring <robh@...nel.org>
Acked-by: Jianjun Wang <jianjun.wang@...iatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
---
v2:
- fix typo in mediatek,mt8192-pcie
v3:
- remove contains to match only if compatible is no fallback
  tested with series "Add driver nodes for MT8195 SoC" and mt7986
  pcie-nodes, dtbs_check is now clean
---
 .../bindings/pci/mediatek-pcie-gen3.yaml      | 47 ++++++++++++++-----
 1 file changed, 35 insertions(+), 12 deletions(-)

diff --git a/Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml b/Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml
index c00be39af64e..5d7369debff2 100644
--- a/Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml
+++ b/Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml
@@ -43,9 +43,6 @@ description: |+
   each set has its own address for MSI message, and supports 32 MSI vectors
   to generate interrupt.
 
-allOf:
-  - $ref: /schemas/pci/pci-bus.yaml#
-
 properties:
   compatible:
     oneOf:
@@ -84,15 +81,7 @@ properties:
     maxItems: 6
 
   clock-names:
-    items:
-      - const: pl_250m
-      - const: tl_26m
-      - const: tl_96m
-      - const: tl_32k
-      - const: peri_26m
-      - enum:
-          - top_133m        # for MT8192
-          - peri_mem        # for MT8188/MT8195
+    maxItems: 6
 
   assigned-clocks:
     maxItems: 1
@@ -138,6 +127,40 @@ required:
   - '#interrupt-cells'
   - interrupt-controller
 
+allOf:
+  - $ref: /schemas/pci/pci-bus.yaml#
+  - if:
+      properties:
+        compatible:
+          const: mediatek,mt8192-pcie
+    then:
+      properties:
+        clock-names:
+          items:
+            - const: pl_250m
+            - const: tl_26m
+            - const: tl_96m
+            - const: tl_32k
+            - const: peri_26m
+            - const: top_133m
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - mediatek,mt8188-pcie
+              - mediatek,mt8195-pcie
+    then:
+      properties:
+        clock-names:
+          items:
+            - const: pl_250m
+            - const: tl_26m
+            - const: tl_96m
+            - const: tl_32k
+            - const: peri_26m
+            - const: peri_mem
+
 unevaluatedProperties: false
 
 examples:
-- 
2.34.1