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dt-bindings: media: s5p-mfc: convert bindings to json-schema
Convert s5p-mfc bindings to DT schema format using json-schema. Signed-off-by: Aakarsh Jain <aakarsh.jain@samsung.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20230328114729.61436-1-aakarsh.jain@samsung.com Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
This commit is contained in:
Aakarsh Jain
Krzysztof Kozlowski
parent
514a935fd0
commit
538af6e585
2 changed files with 184 additions and 78 deletions
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* Samsung Multi Format Codec (MFC)
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Multi Format Codec (MFC) is the IP present in Samsung SoCs which
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supports high resolution decoding and encoding functionalities.
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The MFC device driver is a v4l2 driver which can encode/decode
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video raw/elementary streams and has support for all popular
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video codecs.
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Required properties:
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- compatible : value should be either one among the following
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(a) "samsung,mfc-v5" for MFC v5 present in Exynos4 SoCs
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(b) "samsung,mfc-v6" for MFC v6 present in Exynos5 SoCs
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(c) "samsung,exynos3250-mfc", "samsung,mfc-v7" for MFC v7
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present in Exynos3250 SoC
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(d) "samsung,mfc-v7" for MFC v7 present in Exynos5420 SoC
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(e) "samsung,mfc-v8" for MFC v8 present in Exynos5800 SoC
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(f) "samsung,exynos5433-mfc" for MFC v8 present in Exynos5433 SoC
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(g) "samsung,mfc-v10" for MFC v10 present in Exynos7880 SoC
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- reg : Physical base address of the IP registers and length of memory
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mapped region.
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- interrupts : MFC interrupt number to the CPU.
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- clocks : from common clock binding: handle to mfc clock.
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- clock-names : from common clock binding: must contain "mfc",
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corresponding to entry in the clocks property.
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Optional properties:
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- power-domains : power-domain property defined with a phandle
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to respective power domain.
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- memory-region : from reserved memory binding: phandles to two reserved
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memory regions, first is for "left" mfc memory bus interfaces,
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second if for the "right" mfc memory bus, used when no SYSMMU
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support is available; used only by MFC v5 present in Exynos4 SoCs
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Obsolete properties:
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- samsung,mfc-r, samsung,mfc-l : support removed, please use memory-region
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property instead
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Example:
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SoC specific DT entry:
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mfc: codec@13400000 {
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compatible = "samsung,mfc-v5";
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reg = <0x13400000 0x10000>;
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interrupts = <0 94 0>;
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power-domains = <&pd_mfc>;
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clocks = <&clock 273>;
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clock-names = "mfc";
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};
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Reserved memory specific DT entry for given board (see reserved memory binding
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for more information):
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reserved-memory {
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#address-cells = <1>;
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#size-cells = <1>;
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ranges;
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mfc_left: region@51000000 {
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compatible = "shared-dma-pool";
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no-map;
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reg = <0x51000000 0x800000>;
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};
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mfc_right: region@43000000 {
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compatible = "shared-dma-pool";
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no-map;
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reg = <0x43000000 0x800000>;
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};
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};
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Board specific DT entry:
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codec@13400000 {
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memory-region = <&mfc_left>, <&mfc_right>;
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};
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184
Documentation/devicetree/bindings/media/samsung,s5p-mfc.yaml
Normal file
184
Documentation/devicetree/bindings/media/samsung,s5p-mfc.yaml
Normal file
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@ -0,0 +1,184 @@
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# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/media/samsung,s5p-mfc.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Samsung Exynos Multi Format Codec (MFC)
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maintainers:
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- Marek Szyprowski <m.szyprowski@samsung.com>
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- Aakarsh Jain <aakarsh.jain@samsung.com>
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description:
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Multi Format Codec (MFC) is the IP present in Samsung SoCs which
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supports high resolution decoding and encoding functionalities.
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properties:
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compatible:
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oneOf:
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- enum:
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- samsung,exynos5433-mfc # Exynos5433
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- samsung,mfc-v5 # Exynos4
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- samsung,mfc-v6 # Exynos5
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- samsung,mfc-v7 # Exynos5420
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- samsung,mfc-v8 # Exynos5800
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- samsung,mfc-v10 # Exynos7880
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- items:
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- enum:
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- samsung,exynos3250-mfc # Exynos3250
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- const: samsung,mfc-v7 # Fall back for Exynos3250
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reg:
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maxItems: 1
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clocks:
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minItems: 1
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maxItems: 3
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clock-names:
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minItems: 1
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maxItems: 3
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interrupts:
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maxItems: 1
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iommus:
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minItems: 1
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maxItems: 2
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iommu-names:
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minItems: 1
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maxItems: 2
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power-domains:
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maxItems: 1
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memory-region:
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minItems: 1
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maxItems: 2
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required:
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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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- interrupts
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additionalProperties: false
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allOf:
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- if:
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properties:
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compatible:
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contains:
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enum:
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- samsung,exynos3250-mfc
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then:
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properties:
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clocks:
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maxItems: 2
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clock-names:
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items:
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- const: mfc
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- const: sclk_mfc
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iommus:
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maxItems: 1
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iommus-names: false
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- if:
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properties:
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compatible:
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contains:
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enum:
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- samsung,exynos5433-mfc
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then:
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properties:
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clocks:
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maxItems: 3
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clock-names:
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items:
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- const: pclk
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- const: aclk
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- const: aclk_xiu
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iommus:
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maxItems: 2
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iommus-names:
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items:
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- const: left
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- const: right
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- if:
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properties:
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compatible:
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contains:
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enum:
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- samsung,mfc-v5
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then:
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properties:
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clocks:
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maxItems: 2
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clock-names:
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items:
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- const: mfc
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- const: sclk_mfc
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iommus:
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maxItems: 2
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iommus-names:
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items:
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- const: left
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- const: right
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- if:
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properties:
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compatible:
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contains:
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enum:
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- samsung,mfc-v6
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- samsung,mfc-v8
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then:
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properties:
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clocks:
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maxItems: 1
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clock-names:
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items:
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- const: mfc
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iommus:
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maxItems: 2
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iommus-names:
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items:
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- const: left
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- const: right
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- if:
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properties:
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compatible:
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contains:
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enum:
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- samsung,mfc-v7
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then:
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properties:
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clocks:
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minItems: 1
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maxItems: 2
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iommus:
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minItems: 1
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maxItems: 2
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examples:
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- |
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#include <dt-bindings/clock/exynos4.h>
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#include <dt-bindings/clock/exynos-audss-clk.h>
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#include <dt-bindings/interrupt-controller/arm-gic.h>
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#include <dt-bindings/interrupt-controller/irq.h>
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codec@13400000 {
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compatible = "samsung,mfc-v5";
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reg = <0x13400000 0x10000>;
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interrupts = <GIC_SPI 94 IRQ_TYPE_LEVEL_HIGH>;
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power-domains = <&pd_mfc>;
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clocks = <&clock CLK_MFC>, <&clock CLK_SCLK_MFC>;
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clock-names = "mfc", "sclk_mfc";
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iommus = <&sysmmu_mfc_l>, <&sysmmu_mfc_r>;
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iommu-names = "left", "right";
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};
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