[PATCH v2 1/2] dt-bindings: usb: Add Rockchip RK3568 compatible for EHCI and OHCI

[Jonas Karlman <jonas@kwiboo.se>]

The Rockchip RK3568 EHCI/OHCI controller depends on clk_usbphy1_480m
being enabled, or the system may freeze when registers are accessed.

Add Rockchip RK3568 EHCI and OHCI compatibles with a similar four-clock
constraint as RK3588, also extend the EHCI constraint to include RK3588
to match similar requirements of RK3588.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
---
Existing DTs for RK3568 use the plain generic-ehci/ohci compatible,
next patch make use of these new compatibles and adds the missing
clk_usbphy1_480m clock references.

Existing DTs for RK3588 have contained the required four clocks since
the initial addition of the EHCI/OHCI nodes.

Changes in v2:
- Include rockchip,rk3588-ehci in the EHCI constraint
- Make clocks prop required for EHCI and OHCI
---
 .../devicetree/bindings/usb/generic-ehci.yaml      | 14 ++++++++++++++
 .../devicetree/bindings/usb/generic-ohci.yaml      |  7 ++++++-
 2 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/usb/generic-ehci.yaml b/Documentation/devicetree/bindings/usb/generic-ehci.yaml
index 55a5aa7d7a54..a39f01e740b1 100644
--- a/Documentation/devicetree/bindings/usb/generic-ehci.yaml
+++ b/Documentation/devicetree/bindings/usb/generic-ehci.yaml
@@ -52,6 +52,7 @@ properties:
               - ibm,476gtr-ehci
               - nxp,lpc1850-ehci
               - qca,ar7100-ehci
+              - rockchip,rk3568-ehci
               - rockchip,rk3588-ehci
               - snps,hsdk-v1.0-ehci
               - socionext,uniphier-ehci
@@ -186,6 +187,19 @@ allOf:
       required:
         - clocks
         - clock-names
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - rockchip,rk3568-ehci
+              - rockchip,rk3588-ehci
+    then:
+      properties:
+        clocks:
+          minItems: 4
+      required:
+        - clocks
 
 unevaluatedProperties: false
 
diff --git a/Documentation/devicetree/bindings/usb/generic-ohci.yaml b/Documentation/devicetree/bindings/usb/generic-ohci.yaml
index d42f448fa204..19449a6b3033 100644
--- a/Documentation/devicetree/bindings/usb/generic-ohci.yaml
+++ b/Documentation/devicetree/bindings/usb/generic-ohci.yaml
@@ -47,6 +47,7 @@ properties:
               - hpe,gxp-ohci
               - ibm,476gtr-ohci
               - ingenic,jz4740-ohci
+              - rockchip,rk3568-ohci
               - rockchip,rk3588-ohci
               - snps,hsdk-v1.0-ohci
           - const: generic-ohci
@@ -198,11 +199,15 @@ allOf:
       properties:
         compatible:
           contains:
-            const: rockchip,rk3588-ohci
+            enum:
+              - rockchip,rk3568-ohci
+              - rockchip,rk3588-ohci
     then:
       properties:
         clocks:
           minItems: 4
+      required:
+        - clocks
     else:
       properties:
         clocks:
-- 
2.54.0