[PATCH v4] dt-bindings: clock: versal: Convert the xlnx,zynqmp-clk.txt to yaml

[PATCH v4] dt-bindings: clock: versal: Convert the xlnx,zynqmp-clk.txt to yaml

[Shubhrajyoti Datta]

Convert the xlnx,zynqmp-clk.txt to yaml.
versal-clk.yaml already exists that's why ZynqMP is converted and
merged.

Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@amd.com>
---

Changes in v4:
Do not relax the constraints
Update the constraints to max as 8

Changes in v3:
Update the common constraints

Changes in v2:
add enum in compatible
fix the description
add constraints for clocks
name the clock-controller1 to clock-controller

 .../bindings/clock/xlnx,versal-clk.yaml       | 80 ++++++++++++++++---
 .../bindings/clock/xlnx,zynqmp-clk.txt        | 63 ---------------
 2 files changed, 71 insertions(+), 72 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/clock/xlnx,zynqmp-clk.txt

diff --git a/Documentation/devicetree/bindings/clock/xlnx,versal-clk.yaml b/Documentation/devicetree/bindings/clock/xlnx,versal-clk.yaml
index e9cf747bf89b..1ed17dfca241 100644
--- a/Documentation/devicetree/bindings/clock/xlnx,versal-clk.yaml
+++ b/Documentation/devicetree/bindings/clock/xlnx,versal-clk.yaml
@@ -19,7 +19,9 @@ select: false
 properties:
   compatible:
     oneOf:
-      - const: xlnx,versal-clk
+      - enum:
+          - xlnx,versal-clk
+          - xlnx,zynqmp-clk
       - items:
           - enum:
               - xlnx,versal-net-clk
@@ -31,16 +33,12 @@ properties:
   clocks:
     description: List of clock specifiers which are external input
       clocks to the given clock controller.
-    items:
-      - description: reference clock
-      - description: alternate reference clock
-      - description: alternate reference clock for programmable logic
+    minItems: 3
+    maxItems: 8
 
   clock-names:
-    items:
-      - const: ref
-      - const: alt_ref
-      - const: pl_alt_ref
+    minItems: 3
+    maxItems: 8
 
 required:
   - compatible
@@ -50,6 +48,61 @@ required:
 
 additionalProperties: false
 
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - xlnx,versal-clk
+
+    then:
+      properties:
+        clocks:
+          items:
+            - description: reference clock
+            - description: alternate reference clock
+            - description: alternate reference clock for programmable logic
+
+        clock-names:
+          items:
+            - const: ref
+            - const: alt_ref
+            - const: pl_alt_ref
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - xlnx,zynqmp-clk
+
+    then:
+      properties:
+        clocks:
+          minItems: 5
+          items:
+            - description: PS reference clock
+            - description: reference clock for video system
+            - description: alternative PS reference clock
+            - description: auxiliary reference clock
+            - description: transceiver reference clock
+            - description: (E)MIO clock source  (Optional clock)
+            - description: GEM emio clock  (Optional clock)
+            - description: Watchdog external clock (Optional clock)
+
+        clock-names:
+          minItems: 5
+          items:
+            - const: pss_ref_clk
+            - const: video_clk
+            - const: pss_alt_ref_clk
+            - const: aux_ref_clk
+            - const: gt_crx_ref_clk
+            - pattern: "^mio_clk[00-77]+.*$"
+            - pattern: "gem[0-3]+_emio_clk.*$"
+            - pattern: "swdt[0-1]+_ext_clk.*$"
+
 examples:
   - |
     firmware {
@@ -64,4 +117,13 @@ examples:
         };
       };
     };
+
+    clock-controller {
+        #clock-cells = <1>;
+        compatible = "xlnx,zynqmp-clk";
+        clocks = <&pss_ref_clk>, <&video_clk>, <&pss_alt_ref_clk>,
+                 <&aux_ref_clk>, <&gt_crx_ref_clk>;
+        clock-names = "pss_ref_clk", "video_clk", "pss_alt_ref_clk",
+                      "aux_ref_clk", "gt_crx_ref_clk";
+    };
 ...
diff --git a/Documentation/devicetree/bindings/clock/xlnx,zynqmp-clk.txt b/Documentation/devicetree/bindings/clock/xlnx,zynqmp-clk.txt
deleted file mode 100644
index 391ee1a60bed..000000000000
--- a/Documentation/devicetree/bindings/clock/xlnx,zynqmp-clk.txt
+++ /dev/null
@@ -1,63 +0,0 @@
---------------------------------------------------------------------------
-Device Tree Clock bindings for the Zynq Ultrascale+ MPSoC controlled using
-Zynq MPSoC firmware interface
---------------------------------------------------------------------------
-The clock controller is a h/w block of Zynq Ultrascale+ MPSoC clock
-tree. It reads required input clock frequencies from the devicetree and acts
-as clock provider for all clock consumers of PS clocks.
-
-See clock_bindings.txt for more information on the generic clock bindings.
-
-Required properties:
- - #clock-cells:	Must be 1
- - compatible:		Must contain:	"xlnx,zynqmp-clk"
- - clocks:		List of clock specifiers which are external input
-			clocks to the given clock controller. Please refer
-			the next section to find the input clocks for a
-			given controller.
- - clock-names:		List of clock names which are exteral input clocks
-			to the given clock controller. Please refer to the
-			clock bindings for more details.
-
-Input clocks for zynqmp Ultrascale+ clock controller:
-
-The Zynq UltraScale+ MPSoC has one primary and four alternative reference clock
-inputs. These required clock inputs are:
- - pss_ref_clk (PS reference clock)
- - video_clk (reference clock for video system )
- - pss_alt_ref_clk (alternative PS reference clock)
- - aux_ref_clk
- - gt_crx_ref_clk (transceiver reference clock)
-
-The following strings are optional parameters to the 'clock-names' property in
-order to provide an optional (E)MIO clock source:
- - swdt0_ext_clk
- - swdt1_ext_clk
- - gem0_emio_clk
- - gem1_emio_clk
- - gem2_emio_clk
- - gem3_emio_clk
- - mio_clk_XX		# with XX = 00..77
- - mio_clk_50_or_51	#for the mux clock to gem tsu from 50 or 51
-
-
-Output clocks are registered based on clock information received
-from firmware. Output clocks indexes are mentioned in
-include/dt-bindings/clock/xlnx-zynqmp-clk.h.
-
--------
-Example
--------
-
-firmware {
-	zynqmp_firmware: zynqmp-firmware {
-		compatible = "xlnx,zynqmp-firmware";
-		method = "smc";
-		zynqmp_clk: clock-controller {
-			#clock-cells = <1>;
-			compatible = "xlnx,zynqmp-clk";
-			clocks = <&pss_ref_clk>, <&video_clk>, <&pss_alt_ref_clk>, <&aux_ref_clk>, <&gt_crx_ref_clk>;
-			clock-names = "pss_ref_clk", "video_clk", "pss_alt_ref_clk","aux_ref_clk", "gt_crx_ref_clk";
-		};
-	};
-};
-- 
2.17.1

Re: [PATCH v4] dt-bindings: clock: versal: Convert the xlnx,zynqmp-clk.txt to yaml

[Conor Dooley]

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On Wed, Aug 02, 2023 at 10:05:57AM +0530, Shubhrajyoti Datta wrote:
> Convert the xlnx,zynqmp-clk.txt to yaml.
> versal-clk.yaml already exists that's why ZynqMP is converted and
> merged.
> 
> Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@amd.com>

Reviewed-by: Conor Dooley <conor.dooley@microchip.com>

Thanks,
Conor.

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Re: [PATCH v4] dt-bindings: clock: versal: Convert the xlnx,zynqmp-clk.txt to yaml

[Stephen Boyd]

Quoting Shubhrajyoti Datta (2023-08-01 21:35:57)
> Convert the xlnx,zynqmp-clk.txt to yaml.
> versal-clk.yaml already exists that's why ZynqMP is converted and
> merged.
> 
> Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@amd.com>
> ---

Applied to clk-next