linux-kernel - [PATCH v2 2/3] dt-bindings: clock: ti: Convert fixed-factor-clock to yaml

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Message-Id: <20250516081612.767559-3-sbellary@baylibre.com>
Date: Fri, 16 May 2025 01:16:11 -0700
From: Sukrut Bellary <sbellary@...libre.com>
To: Michael Turquette <mturquette@...libre.com>,
	Stephen Boyd <sboyd@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>
Cc: Sukrut Bellary <sbellary@...libre.com>,
	Tero Kristo <kristo@...nel.org>,
	Kevin Hilman <khilman@...libre.com>,
	Andreas Kemnade <andreas@...nade.info>,
	linux-clk@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v2 2/3] dt-bindings: clock: ti: Convert fixed-factor-clock to yaml

This uses the ti,autoidle.yaml for clock autoidle support. Clean up the example
to meet the current standards.

Add the creator of the original binding as a maintainer.

Signed-off-by: Sukrut Bellary <sbellary@...libre.com>
---
 .../bindings/clock/ti/fixed-factor-clock.txt  | 42 ----------
 .../clock/ti/ti,fixed-factor-clock.yaml       | 76 +++++++++++++++++++
 2 files changed, 76 insertions(+), 42 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/clock/ti/fixed-factor-clock.txt
 create mode 100644 Documentation/devicetree/bindings/clock/ti/ti,fixed-factor-clock.yaml

diff --git a/Documentation/devicetree/bindings/clock/ti/fixed-factor-clock.txt b/Documentation/devicetree/bindings/clock/ti/fixed-factor-clock.txt
deleted file mode 100644
index dc69477b6e98..000000000000
--- a/Documentation/devicetree/bindings/clock/ti/fixed-factor-clock.txt
+++ /dev/null
@@ -1,42 +0,0 @@
-Binding for TI fixed factor rate clock sources.
-
-This binding uses the common clock binding[1], and also uses the autoidle
-support from TI autoidle clock [2].
-
-[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
-[2] Documentation/devicetree/bindings/clock/ti/autoidle.txt
-
-Required properties:
-- compatible : shall be "ti,fixed-factor-clock".
-- #clock-cells : from common clock binding; shall be set to 0.
-- ti,clock-div: fixed divider.
-- ti,clock-mult: fixed multiplier.
-- clocks: parent clock.
-
-Optional properties:
-- clock-output-names : from common clock binding.
-- ti,autoidle-shift: bit shift of the autoidle enable bit for the clock,
-  see [2]
-- reg: offset for the autoidle register of this clock, see [2]
-- ti,invert-autoidle-bit: autoidle is enabled by setting the bit to 0, see [2]
-- ti,set-rate-parent: clk_set_rate is propagated to parent
-
-Example:
-	clock {
-		compatible = "ti,fixed-factor-clock";
-		clocks = <&parentclk>;
-		#clock-cells = <0>;
-		ti,clock-div = <2>;
-		ti,clock-mult = <1>;
-	};
-
-	dpll_usb_clkdcoldo_ck: dpll_usb_clkdcoldo_ck {
-		#clock-cells = <0>;
-		compatible = "ti,fixed-factor-clock";
-		clocks = <&dpll_usb_ck>;
-		ti,clock-div = <1>;
-		ti,autoidle-shift = <8>;
-		reg = <0x01b4>;
-		ti,clock-mult = <1>;
-		ti,invert-autoidle-bit;
-	};
diff --git a/Documentation/devicetree/bindings/clock/ti/ti,fixed-factor-clock.yaml b/Documentation/devicetree/bindings/clock/ti/ti,fixed-factor-clock.yaml
new file mode 100644
index 000000000000..7a63b0992976
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/ti/ti,fixed-factor-clock.yaml
@@ -0,0 +1,76 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/ti/ti,fixed-factor-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: TI fixed factor rate clock sources
+
+maintainers:
+  - Tero Kristo <kristo@...nel.org>
+  - Sukrut Bellary <sbellary@...libre.com>
+
+description:
+  This consists of a divider and a multiplier used to generate a fixed rate
+  clock. This also uses the autoidle support from TI autoidle clock.
+
+allOf:
+  - $ref: ti,autoidle.yaml#
+
+properties:
+  compatible:
+    const: ti,fixed-factor-clock
+
+  "#clock-cells":
+    const: 0
+
+  reg:
+    maxItems: 1
+
+  ti,clock-div:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: Fixed divider
+    minimum: 1
+
+  ti,clock-mult:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: Fixed multiplier
+    minimum: 1
+
+  clocks:
+    maxItems: 1
+
+  clock-output-names:
+    maxItems: 1
+
+  ti,set-rate-parent:
+    description:
+      Propagate to parent clock
+    type: boolean
+
+required:
+  - compatible
+  - clocks
+  - "#clock-cells"
+  - ti,clock-mult
+  - ti,clock-div
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    bus{
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        clock@1b4 {
+            compatible = "ti,fixed-factor-clock";
+            reg = <0x1b4>;
+            clocks = <&dpll_usb_ck>;
+            #clock-cells = <0>;
+            ti,clock-mult = <1>;
+            ti,clock-div = <1>;
+            ti,autoidle-shift = <8>;
+            ti,invert-autoidle-bit;
+        };
+    };
-- 
2.34.1