linux-kernel - [PATCH] dt-bindings: clock: fixed: Define a preferred node name

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Date: Thu, 25 Apr 2024 13:38:09 -0500
From: "Rob Herring (Arm)" <robh@...nel.org>
To: Michael Turquette <mturquette@...libre.com>,
	Stephen Boyd <sboyd@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>
Cc: linux-clk@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] dt-bindings: clock: fixed: Define a preferred node name

Define "clock-<freq>" as the preferred node name for fixed-clock and
fixed-factor-clock. There isn't much of an existing pattern for names of
these nodes. The most frequent patterns are a prefix or suffix of "clk",
but there's a bunch that don't follow any sort of pattern. We could use
"clock-controller-.*", but these nodes aren't really a controller in any
way. So let's at least align with part of that and use 'clock-'.

For now this only serves as documentation as the schema still allows
anything to avoid lots of additional warnings for something low priority
to fix. Once a "no deprecated" mode is added to the tools, warnings can
be enabled selectively.

Signed-off-by: Rob Herring (Arm) <robh@...nel.org>
---
 Documentation/devicetree/bindings/clock/fixed-clock.yaml  | 7 +++++++
 .../devicetree/bindings/clock/fixed-factor-clock.yaml     | 8 ++++++++
 2 files changed, 15 insertions(+)

diff --git a/Documentation/devicetree/bindings/clock/fixed-clock.yaml b/Documentation/devicetree/bindings/clock/fixed-clock.yaml
index b0a4fb8256e2..d287bd092054 100644
--- a/Documentation/devicetree/bindings/clock/fixed-clock.yaml
+++ b/Documentation/devicetree/bindings/clock/fixed-clock.yaml
@@ -11,6 +11,13 @@ maintainers:
   - Stephen Boyd <sboyd@...nel.org>
 
 properties:
+  $nodename:
+    anyOf:
+      - description: Preferred name is 'clock-<freq>'
+        pattern: "^clock-([0-9]+|[a-z0-9-]+)$"
+      - description: Any name allowed
+        deprecated: true
+
   compatible:
     const: fixed-clock
 
diff --git a/Documentation/devicetree/bindings/clock/fixed-factor-clock.yaml b/Documentation/devicetree/bindings/clock/fixed-factor-clock.yaml
index 8f71ab300470..962a1fe85416 100644
--- a/Documentation/devicetree/bindings/clock/fixed-factor-clock.yaml
+++ b/Documentation/devicetree/bindings/clock/fixed-factor-clock.yaml
@@ -11,6 +11,14 @@ maintainers:
   - Stephen Boyd <sboyd@...nel.org>
 
 properties:
+  $nodename:
+    anyOf:
+      - description:
+          Preferred name is 'clock-<freq>' if the input frequency is fixed
+        pattern: "^clock-([0-9]+|[0-9a-z-]+)$"
+      - description: Any name allowed
+        deprecated: true
+
   compatible:
     enum:
       - fixed-factor-clock
-- 
2.43.0