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Despite Allwinner V3 and V3s shares the same die, one peripheral (I2S) is only available on V3, and thus the clocks is not declared for V3s CCU. Add a V3 CCU compatible string to the binding to prepare for a CCU driver that provide I2S clock on V3, but not on V3s. Signed-off-by: Icenowy Zheng <icenowy@aosc.io> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
143 lines
2.9 KiB
YAML
143 lines
2.9 KiB
YAML
# SPDX-License-Identifier: GPL-2.0
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/phy/allwinner,sun4i-a10-ccu.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Allwinner Clock Control Unit Device Tree Bindings
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maintainers:
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- Chen-Yu Tsai <wens@csie.org>
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- Maxime Ripard <maxime.ripard@bootlin.com>
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properties:
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"#clock-cells":
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const: 1
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"#reset-cells":
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const: 1
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compatible:
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enum:
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- allwinner,sun4i-a10-ccu
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- allwinner,sun5i-a10s-ccu
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- allwinner,sun5i-a13-ccu
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- allwinner,sun6i-a31-ccu
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- allwinner,sun7i-a20-ccu
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- allwinner,sun8i-a23-ccu
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- allwinner,sun8i-a33-ccu
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- allwinner,sun8i-a83t-ccu
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- allwinner,sun8i-a83t-r-ccu
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- allwinner,sun8i-h3-ccu
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- allwinner,sun8i-h3-r-ccu
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- allwinner,sun8i-r40-ccu
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- allwinner,sun8i-v3-ccu
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- allwinner,sun8i-v3s-ccu
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- allwinner,sun9i-a80-ccu
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- allwinner,sun50i-a64-ccu
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- allwinner,sun50i-a64-r-ccu
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- allwinner,sun50i-h5-ccu
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- allwinner,sun50i-h6-ccu
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- allwinner,sun50i-h6-r-ccu
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- allwinner,suniv-f1c100s-ccu
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- nextthing,gr8-ccu
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reg:
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maxItems: 1
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clocks:
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minItems: 2
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maxItems: 4
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items:
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- description: High Frequency Oscillator (usually at 24MHz)
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- description: Low Frequency Oscillator (usually at 32kHz)
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- description: Internal Oscillator
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- description: Peripherals PLL
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clock-names:
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minItems: 2
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maxItems: 4
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items:
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- const: hosc
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- const: losc
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- const: iosc
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- const: pll-periph
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required:
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- "#clock-cells"
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- "#reset-cells"
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- compatible
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- reg
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- clocks
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- clock-names
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if:
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properties:
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compatible:
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enum:
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- allwinner,sun8i-a83t-r-ccu
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- allwinner,sun8i-h3-r-ccu
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- allwinner,sun50i-a64-r-ccu
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- allwinner,sun50i-h6-r-ccu
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then:
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properties:
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clocks:
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minItems: 4
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maxItems: 4
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clock-names:
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minItems: 4
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maxItems: 4
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else:
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if:
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properties:
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compatible:
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const: allwinner,sun50i-h6-ccu
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then:
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properties:
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clocks:
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minItems: 3
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maxItems: 3
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clock-names:
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minItems: 3
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maxItems: 3
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else:
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properties:
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clocks:
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minItems: 2
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maxItems: 2
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clock-names:
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minItems: 2
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maxItems: 2
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additionalProperties: false
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examples:
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- |
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ccu: clock@1c20000 {
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compatible = "allwinner,sun8i-h3-ccu";
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reg = <0x01c20000 0x400>;
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clocks = <&osc24M>, <&osc32k>;
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clock-names = "hosc", "losc";
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#clock-cells = <1>;
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#reset-cells = <1>;
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};
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- |
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r_ccu: clock@1f01400 {
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compatible = "allwinner,sun50i-a64-r-ccu";
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reg = <0x01f01400 0x100>;
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clocks = <&osc24M>, <&osc32k>, <&iosc>, <&ccu 11>;
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clock-names = "hosc", "losc", "iosc", "pll-periph";
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#clock-cells = <1>;
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#reset-cells = <1>;
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};
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...
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