Add YAML device tree bindings for NVDEC, now in a more appropriate place compared to the old textual Host1x bindings.
Signed-off-by: Mikko Perttunen mperttunen@nvidia.com --- v6: * Elaborated description for nvidia,host1x-class. * Added default value for nvidia,host1x-class. v5: * Changed from nvidia,instance to nvidia,host1x-class optional property. * Added dma-coherent v4: * Fix incorrect compatibility string in 'if' condition v3: * Drop host1x bindings * Change read2 to read-1 in interconnect names v2: * Fix issues pointed out in v1 * Add T194 nvidia,instance property --- .../gpu/host1x/nvidia,tegra210-nvdec.yaml | 108 ++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 109 insertions(+) create mode 100644 Documentation/devicetree/bindings/gpu/host1x/nvidia,tegra210-nvdec.yaml
diff --git a/Documentation/devicetree/bindings/gpu/host1x/nvidia,tegra210-nvdec.yaml b/Documentation/devicetree/bindings/gpu/host1x/nvidia,tegra210-nvdec.yaml new file mode 100644 index 000000000000..40b2d704d32b --- /dev/null +++ b/Documentation/devicetree/bindings/gpu/host1x/nvidia,tegra210-nvdec.yaml @@ -0,0 +1,108 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: "http://devicetree.org/schemas/gpu/host1x/nvidia,tegra210-nvdec.yaml#" +$schema: "http://devicetree.org/meta-schemas/core.yaml#" + +title: Device tree binding for NVIDIA Tegra NVDEC + +description: | + NVDEC is the hardware video decoder present on NVIDIA Tegra210 + and newer chips. It is located on the Host1x bus and typically + programmed through Host1x channels. + +maintainers: + - Thierry Reding treding@gmail.com + - Mikko Perttunen mperttunen@nvidia.com + +properties: + $nodename: + pattern: "^nvdec@[0-9a-f]*$" + + compatible: + enum: + - nvidia,tegra210-nvdec + - nvidia,tegra186-nvdec + - nvidia,tegra194-nvdec + + reg: + maxItems: 1 + + clocks: + maxItems: 1 + + clock-names: + items: + - const: nvdec + + resets: + maxItems: 1 + + reset-names: + items: + - const: nvdec + + power-domains: + maxItems: 1 + + iommus: + maxItems: 1 + + dma-coherent: true + + interconnects: + items: + - description: DMA read memory client + - description: DMA read 2 memory client + - description: DMA write memory client + + interconnect-names: + items: + - const: dma-mem + - const: read-1 + - const: write + + nvidia,host1x-class: + description: | + Host1x class of the engine, used to specify the targeted engine + when programming the engine through Host1x channels or when + configuring engine-specific behavior in Host1x. + default: 0xf0 + $ref: /schemas/types.yaml#/definitions/uint32 + +required: + - compatible + - reg + - clocks + - clock-names + - resets + - reset-names + - power-domains + +additionalProperties: false + +examples: + - | + #include <dt-bindings/clock/tegra186-clock.h> + #include <dt-bindings/interrupt-controller/arm-gic.h> + #include <dt-bindings/memory/tegra186-mc.h> + #include <dt-bindings/power/tegra186-powergate.h> + #include <dt-bindings/reset/tegra186-reset.h> + + nvdec@15480000 { + compatible = "nvidia,tegra186-nvdec"; + reg = <0x15480000 0x40000>; + clocks = <&bpmp TEGRA186_CLK_NVDEC>; + clock-names = "nvdec"; + resets = <&bpmp TEGRA186_RESET_NVDEC>; + reset-names = "nvdec"; + + power-domains = <&bpmp TEGRA186_POWER_DOMAIN_NVDEC>; + interconnects = <&mc TEGRA186_MEMORY_CLIENT_NVDECSRD &emc>, + <&mc TEGRA186_MEMORY_CLIENT_NVDECSRD1 &emc>, + <&mc TEGRA186_MEMORY_CLIENT_NVDECSWR &emc>; + interconnect-names = "dma-mem", "read-1", "write"; + iommus = <&smmu TEGRA186_SID_NVDEC>; + }; + + diff --git a/MAINTAINERS b/MAINTAINERS index 69932194e1ba..ce9e360639d5 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -6230,6 +6230,7 @@ L: linux-tegra@vger.kernel.org S: Supported T: git git://anongit.freedesktop.org/tegra/linux.git F: Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.txt +F: Documentation/devicetree/bindings/gpu/host1x/ F: drivers/gpu/drm/tegra/ F: drivers/gpu/host1x/ F: include/linux/host1x.h