linux-kernel - [PATCH v9 1/5] dt-bindings: PCI: Remove fallback from Rockchip DesignWare binding

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Message-Id: <20220429123832.2376381-2-pgwipeout@gmail.com>
Date:   Fri, 29 Apr 2022 08:38:27 -0400
From:   Peter Geis <pgwipeout@...il.com>
To:     linux-rockchip@...ts.infradead.org,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Heiko Stuebner <heiko@...ech.de>,
        Shawn Lin <shawn.lin@...k-chips.com>,
        Simon Xue <xxm@...k-chips.com>
Cc:     Peter Geis <pgwipeout@...il.com>, Marc Zyngier <maz@...nel.org>,
        linux-pci@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Rob Herring <robh@...nel.org>
Subject: [PATCH v9 1/5] dt-bindings: PCI: Remove fallback from Rockchip DesignWare binding

The snps,dw-pcie binds to a standalone driver. It is not fully
compatible with the Rockchip implementation and causes a hang if it
binds to the device.

Remove this binding as a valid fallback.

Signed-off-by: Peter Geis <pgwipeout@...il.com>
Reviewed-by: Rob Herring <robh@...nel.org>
---
 .../devicetree/bindings/pci/rockchip-dw-pcie.yaml    | 12 +-----------
 1 file changed, 1 insertion(+), 11 deletions(-)

diff --git a/Documentation/devicetree/bindings/pci/rockchip-dw-pcie.yaml b/Documentation/devicetree/bindings/pci/rockchip-dw-pcie.yaml
index 142bbe577763..bc0a9d1db750 100644
--- a/Documentation/devicetree/bindings/pci/rockchip-dw-pcie.yaml
+++ b/Documentation/devicetree/bindings/pci/rockchip-dw-pcie.yaml
@@ -19,20 +19,10 @@ description: |+
 allOf:
   - $ref: /schemas/pci/pci-bus.yaml#
 
-# We need a select here so we don't match all nodes with 'snps,dw-pcie'
-select:
-  properties:
-    compatible:
-      contains:
-        const: rockchip,rk3568-pcie
-  required:
-    - compatible
-
 properties:
   compatible:
     items:
       - const: rockchip,rk3568-pcie
-      - const: snps,dw-pcie
 
   reg:
     items:
@@ -110,7 +100,7 @@ examples:
         #size-cells = <2>;
 
         pcie3x2: pcie@...80000 {
-            compatible = "rockchip,rk3568-pcie", "snps,dw-pcie";
+            compatible = "rockchip,rk3568-pcie";
             reg = <0x3 0xc0800000 0x0 0x390000>,
                   <0x0 0xfe280000 0x0 0x10000>,
                   <0x3 0x80000000 0x0 0x100000>;
-- 
2.25.1