linux-kernel - [PATCH v4] dt-bindings: PCI: mediatek-gen3: Add support for MT8188 and MT8195

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Date:   Tue, 2 Aug 2022 20:06:24 +0800
From:   Jianjun Wang <jianjun.wang@...iatek.com>
To:     Bjorn Helgaas <bhelgaas@...gle.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Matthias Brugger <matthias.bgg@...il.com>
CC:     <linux-pci@...r.kernel.org>, <linux-mediatek@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        Ryder Lee <ryder.lee@...iatek.com>,
        Jianjun Wang <jianjun.wang@...iatek.com>,
        <Rex-BC.Chen@...iatek.com>, <TingHan.Shen@...iatek.com>,
        <Liju-clr.Chen@...iatek.com>, <Jian.Yang@...iatek.com>
Subject: [PATCH v4] dt-bindings: PCI: mediatek-gen3: Add support for MT8188 and MT8195

MT8188 and MT8195 are ARM platform SoCs with the same PCIe IP as MT8192.

Also add new clock name "peri_mem" since the MT8188 and MT8195 use clock
"peri_mem" instead of "top_133m".

Signed-off-by: Jianjun Wang <jianjun.wang@...iatek.com>
---
Changes in v4:
Remove "items" for "mediatek,mt8192-pcie" since it only have one item.

Changes in v3:
Use enum property to add the new clock name.

Changes in v2:
Merge two patches into one.
---
 .../devicetree/bindings/pci/mediatek-pcie-gen3.yaml | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml b/Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml
index 0499b94627ae..c00be39af64e 100644
--- a/Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml
+++ b/Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml
@@ -48,7 +48,13 @@ allOf:
 
 properties:
   compatible:
-    const: mediatek,mt8192-pcie
+    oneOf:
+      - items:
+          - enum:
+              - mediatek,mt8188-pcie
+              - mediatek,mt8195-pcie
+          - const: mediatek,mt8192-pcie
+      - const: mediatek,mt8192-pcie
 
   reg:
     maxItems: 1
@@ -84,7 +90,9 @@ properties:
       - const: tl_96m
       - const: tl_32k
       - const: peri_26m
-      - const: top_133m
+      - enum:
+          - top_133m        # for MT8192
+          - peri_mem        # for MT8188/MT8195
 
   assigned-clocks:
     maxItems: 1
@@ -126,6 +134,7 @@ required:
   - interrupts
   - ranges
   - clocks
+  - clock-names
   - '#interrupt-cells'
   - interrupt-controller
 
-- 
2.18.0