.../bindings/clock/via,vt8500-clock.yaml | 179 ++++++++++++++++++ .../devicetree/bindings/clock/vt8500.txt | 74 -------- 2 files changed, 179 insertions(+), 74 deletions(-) create mode 100644 Documentation/devicetree/bindings/clock/via,vt8500-clock.yaml delete mode 100644 Documentation/devicetree/bindings/clock/vt8500.txt
Convert the VIA/Wondermedia VT8500 and Wondermedia WM8xxx series SoCs clock
controller binding from the legacy text format to DT schema.
Signed-off-by: Udaya Kiran Challa <challauday369@gmail.com>
---
Changelog:
Changes since v2:
- Drop redundant description for clocks
- Disable reg property for device clocks
- Fix schema hierarchy to match actual DTS structure
Link to v2:https://lore.kernel.org/all/20260521170810.19702-1-challauday369@gmail.com/
Changes since v1:
- Add default value for divisor-mask
- Add required properties compatible and model
- Fix example node name
- Update example size cells and reg value
Link to v1:https://lore.kernel.org/all/20260520025131.17772-1-challauday369@gmail.com/
---
.../bindings/clock/via,vt8500-clock.yaml | 179 ++++++++++++++++++
.../devicetree/bindings/clock/vt8500.txt | 74 --------
2 files changed, 179 insertions(+), 74 deletions(-)
create mode 100644 Documentation/devicetree/bindings/clock/via,vt8500-clock.yaml
delete mode 100644 Documentation/devicetree/bindings/clock/vt8500.txt
diff --git a/Documentation/devicetree/bindings/clock/via,vt8500-clock.yaml b/Documentation/devicetree/bindings/clock/via,vt8500-clock.yaml
new file mode 100644
index 000000000000..035925969655
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/via,vt8500-clock.yaml
@@ -0,0 +1,179 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/via,vt8500-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: VIA/Wondermedia VT8500 Clock Controller
+
+maintainers:
+ - Michael Turquette <mturquette@baylibre.com>
+ - Stephen Boyd <sboyd@kernel.org>
+
+description:
+ Clock controller bindings for VIA/Wondermedia VT8500 and Wondermedia WM8xxx
+ series SoCs.
+
+properties:
+ clocks:
+ type: object
+ additionalProperties: true
+
+ properties:
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+ required:
+ - "#address-cells"
+ - "#size-cells"
+
+ patternProperties:
+ "^[a-z0-9]+(@[0-9a-f]+)?$":
+ type: object
+
+ properties:
+ compatible:
+ enum:
+ - via,vt8500-pll-clock
+ - wm,wm8650-pll-clock
+ - wm,wm8750-pll-clock
+ - wm,wm8850-pll-clock
+ - via,vt8500-device-clock
+
+ reg:
+ maxItems: 1
+ description:
+ Offset of the PLL register within the PMC register space.
+
+ clocks:
+ maxItems: 1
+
+ "#clock-cells":
+ const: 0
+
+ enable-reg:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ Offset of the clock enable register within the PMC
+ register space.
+
+ enable-bit:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ maximum: 31
+ description:
+ Bit index controlling clock enable.
+
+ divisor-reg:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ Offset of the clock divisor register within the PMC
+ register space.
+
+ divisor-mask:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ default: 0x1f
+ description:
+ Bitmask describing the divisor field inside divisor-reg.
+
+ required:
+ - compatible
+ - "#clock-cells"
+
+ allOf:
+ - if:
+ properties:
+ compatible:
+ enum:
+ - via,vt8500-pll-clock
+ - wm,wm8650-pll-clock
+ - wm,wm8750-pll-clock
+ - wm,wm8850-pll-clock
+ then:
+ required:
+ - reg
+ - clocks
+
+ - if:
+ properties:
+ compatible:
+ const: via,vt8500-device-clock
+ then:
+ properties:
+ reg: false
+
+ required:
+ - clocks
+
+ anyOf:
+ - required:
+ - enable-reg
+ - enable-bit
+
+ - required:
+ - divisor-reg
+
+ additionalProperties: false
+
+required:
+ - clocks
+
+additionalProperties: false
+
+examples:
+ - |
+ pmc@d8130000 {
+ compatible = "via,vt8500-pmc";
+ reg = <0xd8130000 0x1000>;
+
+ clocks {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ref24: clock-24000000 {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <24000000>;
+ };
+
+ ref25: clock-25000000 {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <25000000>;
+ };
+
+ plla: clock@200 {
+ compatible = "wm,wm8650-pll-clock";
+ #clock-cells = <0>;
+ clocks = <&ref25>;
+ reg = <0x200>;
+ };
+
+ clkarm: arm {
+ compatible = "via,vt8500-device-clock";
+ #clock-cells = <0>;
+ clocks = <&plla>;
+ divisor-reg = <0x300>;
+ };
+
+ clkuart0: uart0 {
+ compatible = "via,vt8500-device-clock";
+ #clock-cells = <0>;
+ clocks = <&ref24>;
+ enable-reg = <0x250>;
+ enable-bit = <1>;
+ };
+
+ clksdhc: sdhc {
+ compatible = "via,vt8500-device-clock";
+ #clock-cells = <0>;
+ clocks = <&plla>;
+ divisor-reg = <0x328>;
+ divisor-mask = <0x3f>;
+ enable-reg = <0x254>;
+ enable-bit = <18>;
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/clock/vt8500.txt b/Documentation/devicetree/bindings/clock/vt8500.txt
deleted file mode 100644
index 91d71cc0314a..000000000000
--- a/Documentation/devicetree/bindings/clock/vt8500.txt
+++ /dev/null
@@ -1,74 +0,0 @@
-Device Tree Clock bindings for arch-vt8500
-
-This binding uses the common clock binding[1].
-
-[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
-
-Required properties:
-- compatible : shall be one of the following:
- "via,vt8500-pll-clock" - for a VT8500/WM8505 PLL clock
- "wm,wm8650-pll-clock" - for a WM8650 PLL clock
- "wm,wm8750-pll-clock" - for a WM8750 PLL clock
- "wm,wm8850-pll-clock" - for a WM8850 PLL clock
- "via,vt8500-device-clock" - for a VT/WM device clock
-
-Required properties for PLL clocks:
-- reg : shall be the control register offset from PMC base for the pll clock.
-- clocks : shall be the input parent clock phandle for the clock. This should
- be the reference clock.
-- #clock-cells : from common clock binding; shall be set to 0.
-
-Required properties for device clocks:
-- clocks : shall be the input parent clock phandle for the clock. This should
- be a pll output.
-- #clock-cells : from common clock binding; shall be set to 0.
-
-
-Device Clocks
-
-Device clocks are required to have one or both of the following sets of
-properties:
-
-
-Gated device clocks:
-
-Required properties:
-- enable-reg : shall be the register offset from PMC base for the enable
- register.
-- enable-bit : shall be the bit within enable-reg to enable/disable the clock.
-
-
-Divisor device clocks:
-
-Required property:
-- divisor-reg : shall be the register offset from PMC base for the divisor
- register.
-Optional property:
-- divisor-mask : shall be the mask for the divisor register. Defaults to 0x1f
- if not specified.
-
-
-For example:
-
-ref25: ref25M {
- #clock-cells = <0>;
- compatible = "fixed-clock";
- clock-frequency = <25000000>;
-};
-
-plla: plla {
- #clock-cells = <0>;
- compatible = "wm,wm8650-pll-clock";
- clocks = <&ref25>;
- reg = <0x200>;
-};
-
-sdhc: sdhc {
- #clock-cells = <0>;
- compatible = "via,vt8500-device-clock";
- clocks = <&pllb>;
- divisor-reg = <0x328>;
- divisor-mask = <0x3f>;
- enable-reg = <0x254>;
- enable-bit = <18>;
-};
--
2.43.0On Sun, 24 May 2026 16:47:57 +0530, Udaya Kiran Challa wrote: > Convert the VIA/Wondermedia VT8500 and Wondermedia WM8xxx series SoCs clock > controller binding from the legacy text format to DT schema. > > Signed-off-by: Udaya Kiran Challa <challauday369@gmail.com> > --- > Changelog: > Changes since v2: > - Drop redundant description for clocks > - Disable reg property for device clocks > - Fix schema hierarchy to match actual DTS structure > > Link to v2:https://lore.kernel.org/all/20260521170810.19702-1-challauday369@gmail.com/ > > Changes since v1: > - Add default value for divisor-mask > - Add required properties compatible and model > - Fix example node name > - Update example size cells and reg value > > Link to v1:https://lore.kernel.org/all/20260520025131.17772-1-challauday369@gmail.com/ > --- > .../bindings/clock/via,vt8500-clock.yaml | 179 ++++++++++++++++++ > .../devicetree/bindings/clock/vt8500.txt | 74 -------- > 2 files changed, 179 insertions(+), 74 deletions(-) > create mode 100644 Documentation/devicetree/bindings/clock/via,vt8500-clock.yaml > delete mode 100644 Documentation/devicetree/bindings/clock/vt8500.txt > My bot found errors running 'make dt_binding_check' on your patch: yamllint warnings/errors: dtschema/dtc warnings/errors: Documentation/devicetree/bindings/clock/via,vt8500-clock.example.dtb: /example-0/pmc@d8130000: failed to match any schema with compatible: ['via,vt8500-pmc'] doc reference errors (make refcheckdocs): See https://patchwork.kernel.org/project/devicetree/patch/20260524111813.39810-1-challauday369@gmail.com The base for the series is generally the latest rc1. A different dependency should be noted in *this* patch. If you already ran 'make dt_binding_check' and didn't see the above error(s), then make sure 'yamllint' is installed and dt-schema is up to date: pip3 install dtschema --upgrade Please check and re-submit after running the above command yourself. Note that DT_SCHEMA_FILES can be set to your schema file to speed up checking your schema. However, it must be unset to test all examples with your schema.
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