[PATCH v6 12/19] dt-bindings: usb: dwc3: Add synopsys, dwc3 compatible string

[Serge Semin]

The DWC USB3 driver and some DTS files like Exynos 5250, Keystone k2e, etc
expects the DWC USB3 DT node to have the compatible string with the
"synopsys" vendor prefix. Let's add the corresponding compatible string to
the controller DT schema, but mark it as deprecated seeing the Synopsys,
Inc. is presented with just "snps" vendor prefix.

Signed-off-by: Serge Semin <Sergey.Semin at baikalelectronics.ru>
Reviewed-by: Rob Herring <robh at kernel.org>

---

Changelog v2:
- Drop quotes from around the compat string constant.

Changelog v4:
- Get the patch back, since we can't discard the deprecated prefix from the
  driver.
---
 Documentation/devicetree/bindings/usb/snps,dwc3.yaml | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/usb/snps,dwc3.yaml b/Documentation/devicetree/bindings/usb/snps,dwc3.yaml
index 87a92e313d24..6253bc5fb18e 100644
--- a/Documentation/devicetree/bindings/usb/snps,dwc3.yaml
+++ b/Documentation/devicetree/bindings/usb/snps,dwc3.yaml
@@ -31,7 +31,10 @@ allOf:
 properties:
   compatible:
     contains:
-      const: snps,dwc3
+      oneOf:
+        - const: snps,dwc3
+        - const: synopsys,dwc3
+          deprecated: true
 
   interrupts:
     description:
-- 
2.29.2