As Rob pointed in another mail thread [1], the binding of tja11xx PHY
is completely broken, the schema cannot catch the error in the DTS. A
compatiable string must be needed if we want to add a custom propety.
So extract known PHY IDs from the tja11xx PHY drivers and convert them
into supported compatible string list to fix the broken binding issue.

[1]: https://lore.kernel.org/netdev/31058f49-bac5-49a9-a422-c43b121bf049@kernel.org/T/

Fixes: 52b2fe4535ad ("dt-bindings: net: tja11xx: add nxp,refclk_in property")
Signed-off-by: Wei Fang <wei.fang@nxp.com>
---
V2 changes:
1. Add more compatible strings based on TJA11xx data sheets.
V1 link: https://lore.kernel.org/imx/20240904145720.GA2552590-robh@kernel.org/T/
---
 .../devicetree/bindings/net/nxp,tja11xx.yaml  | 62 ++++++++++++++-----
 1 file changed, 46 insertions(+), 16 deletions(-)

diff --git a/Documentation/devicetree/bindings/net/nxp,tja11xx.yaml b/Documentation/devicetree/bindings/net/nxp,tja11xx.yaml
index 85bfa45f5122..a754a61adc2d 100644
--- a/Documentation/devicetree/bindings/net/nxp,tja11xx.yaml
+++ b/Documentation/devicetree/bindings/net/nxp,tja11xx.yaml
@@ -14,8 +14,53 @@ maintainers:
 description:
   Bindings for NXP TJA11xx automotive PHYs
 
+properties:
+  compatible:
+    enum:
+      - ethernet-phy-id0180.dc40
+      - ethernet-phy-id0180.dc41
+      - ethernet-phy-id0180.dc48
+      - ethernet-phy-id0180.dd00
+      - ethernet-phy-id0180.dd01
+      - ethernet-phy-id0180.dd02
+      - ethernet-phy-id0180.dc80
+      - ethernet-phy-id0180.dc82
+      - ethernet-phy-id001b.b010
+      - ethernet-phy-id001b.b013
+      - ethernet-phy-id001b.b030
+      - ethernet-phy-id001b.b031
+
 allOf:
   - $ref: ethernet-phy.yaml#
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - ethernet-phy-id0180.dc40
+              - ethernet-phy-id0180.dc41
+              - ethernet-phy-id0180.dc48
+              - ethernet-phy-id0180.dd00
+              - ethernet-phy-id0180.dd01
+              - ethernet-phy-id0180.dd02
+
+    then:
+      properties:
+        nxp,rmii-refclk-in:
+          type: boolean
+          description: |
+            The REF_CLK is provided for both transmitted and received data
+            in RMII mode. This clock signal is provided by the PHY and is
+            typically derived from an external 25MHz crystal. Alternatively,
+            a 50MHz clock signal generated by an external oscillator can be
+            connected to pin REF_CLK. A third option is to connect a 25MHz
+            clock to pin CLK_IN_OUT. So, the REF_CLK should be configured
+            as input or output according to the actual circuit connection.
+            If present, indicates that the REF_CLK will be configured as
+            interface reference clock input when RMII mode enabled.
+            If not present, the REF_CLK will be configured as interface
+            reference clock output when RMII mode enabled.
+            Only supported on TJA1100 and TJA1101.
 
 patternProperties:
   "^ethernet-phy@[0-9a-f]+$":
@@ -32,22 +77,6 @@ patternProperties:
         description:
           The ID number for the child PHY. Should be +1 of parent PHY.
 
-      nxp,rmii-refclk-in:
-        type: boolean
-        description: |
-          The REF_CLK is provided for both transmitted and received data
-          in RMII mode. This clock signal is provided by the PHY and is
-          typically derived from an external 25MHz crystal. Alternatively,
-          a 50MHz clock signal generated by an external oscillator can be
-          connected to pin REF_CLK. A third option is to connect a 25MHz
-          clock to pin CLK_IN_OUT. So, the REF_CLK should be configured
-          as input or output according to the actual circuit connection.
-          If present, indicates that the REF_CLK will be configured as
-          interface reference clock input when RMII mode enabled.
-          If not present, the REF_CLK will be configured as interface
-          reference clock output when RMII mode enabled.
-          Only supported on TJA1100 and TJA1101.
-
     required:
       - reg
 
@@ -60,6 +89,7 @@ examples:
         #size-cells = <0>;
 
         tja1101_phy0: ethernet-phy@4 {
+            compatible = "ethernet-phy-id0180.dc40";
             reg = <0x4>;
             nxp,rmii-refclk-in;
         };
-- 
2.34.1

On Mon, 09 Sep 2024 09:21:52 +0800, Wei Fang wrote:
> As Rob pointed in another mail thread [1], the binding of tja11xx PHY
> is completely broken, the schema cannot catch the error in the DTS. A
> compatiable string must be needed if we want to add a custom propety.
> So extract known PHY IDs from the tja11xx PHY drivers and convert them
> into supported compatible string list to fix the broken binding issue.
> 
> [1]: https://lore.kernel.org/netdev/31058f49-bac5-49a9-a422-c43b121bf049@kernel.org/T/
> 
> Fixes: 52b2fe4535ad ("dt-bindings: net: tja11xx: add nxp,refclk_in property")
> Signed-off-by: Wei Fang <wei.fang@nxp.com>
> ---
> V2 changes:
> 1. Add more compatible strings based on TJA11xx data sheets.
> V1 link: https://lore.kernel.org/imx/20240904145720.GA2552590-robh@kernel.org/T/
> ---
>  .../devicetree/bindings/net/nxp,tja11xx.yaml  | 62 ++++++++++++++-----
>  1 file changed, 46 insertions(+), 16 deletions(-)
> 

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