Rockchip RK3528 has two Ethernet controllers based on Synopsys DWC
Ethernet QoS IP.

Add compatible string for the RK3528 variant.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
---
Changes in v2:
- Restrict the minItems: 4 change to rockchip,rk3528-gmac

The enum will be extended in a future patch, Pending RK3562 and a future
RK3506 variant also only have 4 clocks.

Because snps,dwmac-4.20a is already listed in snps,dwmac.yaml adding the
rockchip,rk3528-gmac compatible did not seem necessary.
---
 .../devicetree/bindings/net/rockchip-dwmac.yaml  | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/net/rockchip-dwmac.yaml b/Documentation/devicetree/bindings/net/rockchip-dwmac.yaml
index 8dd870f0214d..fe417c19b597 100644
--- a/Documentation/devicetree/bindings/net/rockchip-dwmac.yaml
+++ b/Documentation/devicetree/bindings/net/rockchip-dwmac.yaml
@@ -24,6 +24,7 @@ select:
           - rockchip,rk3366-gmac
           - rockchip,rk3368-gmac
           - rockchip,rk3399-gmac
+          - rockchip,rk3528-gmac
           - rockchip,rk3568-gmac
           - rockchip,rk3576-gmac
           - rockchip,rk3588-gmac
@@ -49,6 +50,7 @@ properties:
               - rockchip,rv1108-gmac
       - items:
           - enum:
+              - rockchip,rk3528-gmac
               - rockchip,rk3568-gmac
               - rockchip,rk3576-gmac
               - rockchip,rk3588-gmac
@@ -56,7 +58,7 @@ properties:
           - const: snps,dwmac-4.20a
 
   clocks:
-    minItems: 5
+    minItems: 4
     maxItems: 8
 
   clock-names:
@@ -130,6 +132,18 @@ allOf:
       properties:
         rockchip,php-grf: false
 
+  - if:
+      not:
+        properties:
+          compatible:
+            contains:
+              enum:
+                - rockchip,rk3528-gmac
+    then:
+      properties:
+        clocks:
+          minItems: 5
+
 unevaluatedProperties: false
 
 examples:
-- 
2.48.1

On Sun, 09 Mar 2025 23:26:11 +0000, Jonas Karlman wrote:
> Rockchip RK3528 has two Ethernet controllers based on Synopsys DWC
> Ethernet QoS IP.
> 
> Add compatible string for the RK3528 variant.
> 
> Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
> ---
> Changes in v2:
> - Restrict the minItems: 4 change to rockchip,rk3528-gmac
> 
> The enum will be extended in a future patch, Pending RK3562 and a future
> RK3506 variant also only have 4 clocks.
> 
> Because snps,dwmac-4.20a is already listed in snps,dwmac.yaml adding the
> rockchip,rk3528-gmac compatible did not seem necessary.
> ---
>  .../devicetree/bindings/net/rockchip-dwmac.yaml  | 16 +++++++++++++++-
>  1 file changed, 15 insertions(+), 1 deletion(-)
> 

Reviewed-by: Rob Herring (Arm) <robh@kernel.org>