[PATCH] dt-bindings: PCI: mediatek-gen3: Add support for MT8195

MT8195 is an ARM platform SoC which has the same PCIe IP with MT8192.

Signed-off-by: Jianjun Wang <redacted>
---
 Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml b/Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml
index 742206dbd965..dcebb1036207 100644
--- a/Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml
+++ b/Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml

@@ -48,7 +48,9 @@ allOf:
 
 properties:
   compatible:
-    const: mediatek,mt8192-pcie
+    oneOf:
+      - const: mediatek,mt8192-pcie
+      - const: mediatek,mt8195-pcie
 
   reg:
     maxItems: 1

-- 
2.18.0

On Fri, Aug 20, 2021 at 10:35:21AM +0800, Jianjun Wang wrote:

Use 'enum' instead of oneOf+const.

 
   reg:
     maxItems: 1
-- 
2.18.0

On Fri, Aug 20, 2021 at 10:35:21AM +0800, Jianjun Wang wrote:

MT8195 is an ARM platform SoC which has the same PCIe IP with MT8192.

If it is the same, then 8192 should be a fallback compatible. 'The same' 
means the current driver for 8192 will work unchanged.

On Tue, 2021-08-24 at 09:40 -0500, Rob Herring wrote:

On Fri, Aug 20, 2021 at 10:35:21AM +0800, Jianjun Wang wrote:

quoted

MT8195 is an ARM platform SoC which has the same PCIe IP with
MT8192.

If it is the same, then 8192 should be a fallback compatible. 'The
same' 
means the current driver for 8192 will work unchanged.

Hi Rob,

Thanks for your review.

Yes, the controller driver works fine in the MT8195 platform without
any change, and we would like to use the compatible string in device
tree as follows:

"mediatek,mt8195-pcie", "mediatek,mt8192-pcie"

Thanks.

quoted

Signed-off-by: Jianjun Wang <redacted>
---
 Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml | 4
+++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/pci/mediatek-pcie-

gen3.yaml b/Documentation/devicetree/bindings/pci/mediatek-pcie-
gen3.yaml
index 742206dbd965..dcebb1036207 100644

--- a/Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml
+++ b/Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml

@@ -48,7 +48,9 @@ allOf:
 
 properties:
   compatible:
-    const: mediatek,mt8192-pcie
+    oneOf:
+      - const: mediatek,mt8192-pcie
+      - const: mediatek,mt8195-pcie
 
   reg:
     maxItems: 1

-- 
2.18.0

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