linux-kernel - [PATCH v1 1/4] dt-bindings: pci: remove fallback from Rockchip DesignWare binding

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Date:   Tue, 12 Apr 2022 14:57:48 -0400
From:   Peter Geis <pgwipeout@...il.com>
To:     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:     linux-rockchip@...ts.infradead.org,
        Peter Geis <pgwipeout@...il.com>, linux-pci@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v1 1/4] 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>
---
 Documentation/devicetree/bindings/pci/rockchip-dw-pcie.yaml | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/pci/rockchip-dw-pcie.yaml b/Documentation/devicetree/bindings/pci/rockchip-dw-pcie.yaml
index 142bbe577763..8dc11fed8a3c 100644
--- a/Documentation/devicetree/bindings/pci/rockchip-dw-pcie.yaml
+++ b/Documentation/devicetree/bindings/pci/rockchip-dw-pcie.yaml
@@ -32,7 +32,6 @@ properties:
   compatible:
     items:
       - const: rockchip,rk3568-pcie
-      - const: snps,dw-pcie
 
   reg:
     items:
@@ -110,7 +109,7 @@ 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