dt-bindings: phy: rockchip-inno-csi-dphy: add rk3588 variant

The Rockchip RK3588 variant of the CSI-2 DPHY features two reset lines.
Add the variant and allow for the additional reset.

While at it, fix the description of the first reset in order to avoid
confusion.

Signed-off-by: Michael Riesch <michael.riesch@collabora.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250616-rk3588-csi-dphy-v4-3-a4f340a7f0cf@collabora.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

1 files changed, 49 insertions, 1 deletions

diff --git a/Documentation/devicetree/bindings/phy/rockchip-inno-csi-dphy.yaml b/Documentation/devicetree/bindings/phy/rockchip-inno-csi-dphy.yaml
index b304bc5a08c4..03950b3cad08 100644
--- a/Documentation/devicetree/bindings/phy/rockchip-inno-csi-dphy.yaml
+++ b/Documentation/devicetree/bindings/phy/rockchip-inno-csi-dphy.yaml
@@ -21,6 +21,7 @@ properties:
       - rockchip,rk3326-csi-dphy
       - rockchip,rk3368-csi-dphy
       - rockchip,rk3568-csi-dphy
+      - rockchip,rk3588-csi-dphy
 
   reg:
     maxItems: 1
@@ -40,11 +41,15 @@ properties:
 
   resets:
     items:
-      - description: exclusive PHY reset line
+      - description: APB reset line
+      - description: PHY reset line
+    minItems: 1
 
   reset-names:
     items:
       - const: apb
+      - const: phy
+    minItems: 1
 
   rockchip,grf:
     $ref: /schemas/types.yaml#/definitions/phandle
@@ -74,6 +79,30 @@ allOf:
     then:
       required:
         - power-domains
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - rockchip,px30-csi-dphy
+              - rockchip,rk1808-csi-dphy
+              - rockchip,rk3326-csi-dphy
+              - rockchip,rk3368-csi-dphy
+              - rockchip,rk3568-csi-dphy
+    then:
+      properties:
+        resets:
+          maxItems: 1
+
+        reset-names:
+          maxItems: 1
+    else:
+      properties:
+        resets:
+          minItems: 2
+
+        reset-names:
+          minItems: 2
 
 additionalProperties: false
 
@@ -91,3 +120,22 @@ examples:
         reset-names = "apb";
         rockchip,grf = <&grf>;
     };
+  - |
+    #include <dt-bindings/clock/rockchip,rk3588-cru.h>
+    #include <dt-bindings/reset/rockchip,rk3588-cru.h>
+
+    soc {
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        phy@fedc0000 {
+            compatible = "rockchip,rk3588-csi-dphy";
+            reg = <0x0 0xfedc0000 0x0 0x8000>;
+            clocks = <&cru PCLK_CSIPHY0>;
+            clock-names = "pclk";
+            #phy-cells = <0>;
+            resets = <&cru SRST_P_CSIPHY0>, <&cru SRST_CSIPHY0>;
+            reset-names = "apb", "phy";
+            rockchip,grf = <&csidphy0_grf>;
+        };
+    };