Add device tree support for the Cirrus Logic CS2600 clock device. Signed-off-by: Paul Handrigan <paulha@xxxxxxxxxxxxxxxxxxxxx> --- .../bindings/clock/cirrus,cs2600.yaml | 78 +++++++++++++++++++ include/dt-bindings/clock/cirrus,cs2600.h | 23 ++++++ 2 files changed, 101 insertions(+) create mode 100644 Documentation/devicetree/bindings/clock/cirrus,cs2600.yaml create mode 100644 include/dt-bindings/clock/cirrus,cs2600.h diff --git a/Documentation/devicetree/bindings/clock/cirrus,cs2600.yaml b/Documentation/devicetree/bindings/clock/cirrus,cs2600.yaml new file mode 100644 index 000000000000..ed23f347f382 --- /dev/null +++ b/Documentation/devicetree/bindings/clock/cirrus,cs2600.yaml @@ -0,0 +1,78 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/clock/cirrus,cs2600.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Cirrus Logic Fractional-N Clock Synthesizer & Clock Multiplier + +maintainers: + - Paul Handrigan <paulha@xxxxxxxxxxxxxxxxxxxxx> + - patches@xxxxxxxxxxxxxxxxxxxxx> + +description: | + The CS2600 is a system-clocking device that enables frequency synthesis and + clock generation from a stable timing reference clock. The device can generate + low-jitter clocks from a noisy clock reference at frequencies as low as 50 Hz. + +properties: + compatible: + enum: + - cirrus,cs2600 + + clocks: + description: + Common clock binding for XTI/REF_CLK, CLK_IN + maxItems: 2 + + clock-names: + items: + - const: ref_clk + - const: clk_in + + '#clock-cells': + const: 1 + + reg: + maxItems: 1 + + vdd-supply: + description: Power Supply + + cirrus,aux-output-source: + description: + Specifies the function of the auxiliary clock output pin + $ref: /schemas/types.yaml#/definitions/uint32 + enum: + - 0 # CS2600_AUX_OUTPUT_FREQ_UNLOCK: Frequency unlock notification + - 1 # CS2600_AUX_OUTPUT_PHASE_UNLOCK: Phase unlock notification + - 2 # CS2600_AUX_OUTPUT_NO_CLKIN: CLK_IN is not available + default: 0 + +required: + - compatible + - reg + - clocks + - clock-names + - '#clock-cells' + +unevaluatedProperties: false + +examples: + - | + #include <dt-bindings/clock/cirrus,cs2600.h> + + i2c@0 { + reg = <0x0 0x100>; + #address-cells = <1>; + #size-cells = <0>; + + clock-controller@2c { + #clock-cells = <1>; + compatible = "cirrus,cs2600"; + reg = <0x2c>; + clocks = <&xtl_clk>, <&sync_clock>; + clock-names = "ref_clk", "clk_in"; + vdd-supply = <&vreg>; + }; + }; diff --git a/include/dt-bindings/clock/cirrus,cs2600.h b/include/dt-bindings/clock/cirrus,cs2600.h new file mode 100644 index 000000000000..673b4b4cb1f4 --- /dev/null +++ b/include/dt-bindings/clock/cirrus,cs2600.h @@ -0,0 +1,23 @@ +/* SPDX-License-Identifier: (GPL-2.0 OR MIT) */ +/* + * Copyright (c) 2024 Cirrus Logic, Inc. and + * Cirrus Logic International Simiconductor Ltd. + * + * Author: Paul Handrigan <paulha@xxxxxxxxxxxxxxxxxxxxx> + * + */ + +#ifndef _DT_BINDINGS_CLK_CIRRUS_CS2600_H +#define _DT_BINDINGS_CLK_CIRRUS_CS2600_H + +/* CS2600 Clock Outputs */ +#define CS2600_CLK_OUTPUT 0 +#define CS2600_BCLK_OUTPUT 1 +#define CS2600_FSYNC_OUTPUT 2 + +/* CS2600 Auxiliary Output */ +#define CS2600_AUX_OUTPUT_FREQ_UNLOCK 0 +#define CS2600_AUX_OUTPUT_PHASE_UNLOCK 1 +#define CS2600_AUX_OUTPUT_NO_CLKIN 2 + +#endif -- 2.34.1
