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Date: Mon, 27 Nov 2023 21:23:59 +0100
From: Andreas Kemnade <andreas@...nade.info>
To: mturquette@...libre.com, sboyd@...nel.org, robh+dt@...nel.org,
krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
andreas@...nade.info, kristo@...nel.org, linux-clk@...r.kernel.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-omap@...r.kernel.org
Subject: [PATCH] dt-bindings: clock: ti: Convert interface.txt to json-schema
Convert the OMAP interface clock device tree binding to json-schema
and fix up reg property which is optional and taken from parent if
not specified.
Specify the creator of the original binding as a maintainer.
Signed-off-by: Andreas Kemnade <andreas@...nade.info>
---
.../bindings/clock/ti/interface.txt | 57 ------------
.../bindings/clock/ti/ti,interface-clock.yaml | 90 +++++++++++++++++++
2 files changed, 90 insertions(+), 57 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/clock/ti/interface.txt
create mode 100644 Documentation/devicetree/bindings/clock/ti/ti,interface-clock.yaml
diff --git a/Documentation/devicetree/bindings/clock/ti/interface.txt b/Documentation/devicetree/bindings/clock/ti/interface.txt
deleted file mode 100644
index d3eb5ca92a7fe..0000000000000
--- a/Documentation/devicetree/bindings/clock/ti/interface.txt
+++ /dev/null
@@ -1,57 +0,0 @@
-Binding for Texas Instruments interface clock.
-
-Binding status: Unstable - ABI compatibility may be broken in the future
-
-This binding uses the common clock binding[1]. This clock is
-quite much similar to the basic gate-clock [2], however,
-it supports a number of additional features, including
-companion clock finding (match corresponding functional gate
-clock) and hardware autoidle enable / disable.
-
-[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
-[2] Documentation/devicetree/bindings/clock/gpio-gate-clock.yaml
-
-Required properties:
-- compatible : shall be one of:
- "ti,omap3-interface-clock" - basic OMAP3 interface clock
- "ti,omap3-no-wait-interface-clock" - interface clock which has no hardware
- capability for waiting clock to be ready
- "ti,omap3-hsotgusb-interface-clock" - interface clock with USB specific HW
- handling
- "ti,omap3-dss-interface-clock" - interface clock with DSS specific HW handling
- "ti,omap3-ssi-interface-clock" - interface clock with SSI specific HW handling
- "ti,am35xx-interface-clock" - interface clock with AM35xx specific HW handling
- "ti,omap2430-interface-clock" - interface clock with OMAP2430 specific HW
- handling
-- #clock-cells : from common clock binding; shall be set to 0
-- clocks : link to phandle of parent clock
-- reg : base address for the control register
-
-Optional properties:
-- clock-output-names : from common clock binding.
-- ti,bit-shift : bit shift for the bit enabling/disabling the clock (default 0)
-
-Examples:
- aes1_ick: aes1_ick@...04a14 {
- #clock-cells = <0>;
- compatible = "ti,omap3-interface-clock";
- clocks = <&security_l4_ick2>;
- reg = <0x48004a14 0x4>;
- ti,bit-shift = <3>;
- };
-
- cam_ick: cam_ick@...04f10 {
- #clock-cells = <0>;
- compatible = "ti,omap3-no-wait-interface-clock";
- clocks = <&l4_ick>;
- reg = <0x48004f10 0x4>;
- ti,bit-shift = <0>;
- };
-
- ssi_ick_3430es2: ssi_ick_3430es2@...04a10 {
- #clock-cells = <0>;
- compatible = "ti,omap3-ssi-interface-clock";
- clocks = <&ssi_l4_ick>;
- reg = <0x48004a10 0x4>;
- ti,bit-shift = <0>;
- };
diff --git a/Documentation/devicetree/bindings/clock/ti/ti,interface-clock.yaml b/Documentation/devicetree/bindings/clock/ti/ti,interface-clock.yaml
new file mode 100644
index 0000000000000..48a54caeb3857
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/ti/ti,interface-clock.yaml
@@ -0,0 +1,90 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/ti/ti,interface-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments interface clock.
+
+maintainers:
+ - Tero Kristo <kristo@...nel.org>
+
+description: |
+ This binding uses the common clock binding[1]. This clock is
+ quite much similar to the basic gate-clock[2], however,
+ it supports a number of additional features, including
+ companion clock finding (match corresponding functional gate
+ clock) and hardware autoidle enable / disable.
+
+ [1] Documentation/devicetree/bindings/clock/clock-bindings.txt
+ [2] Documentation/devicetree/bindings/clock/gpio-gate-clock.yaml
+
+
+properties:
+ compatible:
+ enum:
+ - ti,omap3-interface-clock # basic OMAP3 interface clock
+ - ti,omap3-no-wait-interface-clock # interface clock which has no hardware
+ # capability for waiting clock to be ready
+ - ti,omap3-hsotgusb-interface-clock # interface clock with USB specific HW handling
+ - ti,omap3-dss-interface-clock # interface clock with DSS specific HW handling
+ - ti,omap3-ssi-interface-clock # interface clock with SSI specific HW handling
+ - ti,am35xx-interface-clock # interface clock with AM35xx specific HW handling
+ - ti,omap2430-interface-clock # interface clock with OMAP2430 specific HW handling
+ "#clock-cells":
+ const: 0
+
+ clocks:
+ maxItems: 1
+
+ clock-output-names:
+ maxItems: 1
+
+ reg:
+ description:
+ if not specified, value from parent is used
+ maxItems: 1
+
+ ti,bit-shift:
+ description:
+ bit shift for the bit enabling/disabling the clock
+ $ref: /schemas/types.yaml#/definitions/uint32
+ default: 0
+
+required:
+ - compatible
+ - clocks
+ - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ bus {
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ aes1_ick: aes1-ick@...04a14 {
+ #clock-cells = <0>;
+ compatible = "ti,omap3-interface-clock";
+ clocks = <&security_l4_ick2>;
+ reg = <0x48004a14 0x4>;
+ ti,bit-shift = <3>;
+ };
+
+ cam_ick: cam-ick@...04f10 {
+ #clock-cells = <0>;
+ compatible = "ti,omap3-no-wait-interface-clock";
+ clocks = <&l4_ick>;
+ reg = <0x48004f10 0x4>;
+ ti,bit-shift = <0>;
+ };
+
+ ssi_ick_3430es2: ssi-ick-3430es2@...04a10 {
+ #clock-cells = <0>;
+ compatible = "ti,omap3-ssi-interface-clock";
+ clocks = <&ssi_l4_ick>;
+ reg = <0x48004a10 0x4>;
+ ti,bit-shift = <0>;
+ };
+ };
--
2.39.2
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