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Message-ID: <20211117095608.60415-1-jonathanh@nvidia.com>
Date: Wed, 17 Nov 2021 09:56:07 +0000
From: Jon Hunter <jonathanh@...dia.com>
To: Rob Herring <robh+dt@...nel.org>,
Thierry Reding <thierry.reding@...il.com>,
Mikko Perttunen <mperttunen@...dia.com>
CC: <devicetree@...r.kernel.org>, <linux-tegra@...r.kernel.org>,
<linux-kernel@...r.kernel.org>, Jon Hunter <jonathanh@...dia.com>
Subject: [PATCH V3 1/2] dt-bindings: Add YAML bindings for NVENC and NVJPG
Add YAML device tree bindings for the Tegra NVENC and NVJPG Host1x
engines.
Signed-off-by: Jon Hunter <jonathanh@...dia.com>
---
Changes since V2:
- Fixed indentation
Changes since V1:
- Fixed errors reported by Rob's bot
.../gpu/host1x/nvidia,tegra210-nvenc.yaml | 135 ++++++++++++++++++
.../gpu/host1x/nvidia,tegra210-nvjpg.yaml | 94 ++++++++++++
2 files changed, 229 insertions(+)
create mode 100644 Documentation/devicetree/bindings/gpu/host1x/nvidia,tegra210-nvenc.yaml
create mode 100644 Documentation/devicetree/bindings/gpu/host1x/nvidia,tegra210-nvjpg.yaml
diff --git a/Documentation/devicetree/bindings/gpu/host1x/nvidia,tegra210-nvenc.yaml b/Documentation/devicetree/bindings/gpu/host1x/nvidia,tegra210-nvenc.yaml
new file mode 100644
index 000000000000..e63ae1a00818
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpu/host1x/nvidia,tegra210-nvenc.yaml
@@ -0,0 +1,135 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/gpu/host1x/nvidia,tegra210-nvenc.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Device tree binding for NVIDIA Tegra NVENC
+
+description: |
+ NVENC is the hardware video encoder present on NVIDIA Tegra210
+ and newer chips. It is located on the Host1x bus and typically
+ programmed through Host1x channels.
+
+maintainers:
+ - Thierry Reding <treding@...il.com>
+ - Mikko Perttunen <mperttunen@...dia.com>
+
+properties:
+ $nodename:
+ pattern: "^nvenc@[0-9a-f]*$"
+
+ compatible:
+ enum:
+ - nvidia,tegra210-nvenc
+ - nvidia,tegra186-nvenc
+ - nvidia,tegra194-nvenc
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ items:
+ - const: nvenc
+
+ resets:
+ maxItems: 1
+
+ reset-names:
+ items:
+ - const: nvenc
+
+ power-domains:
+ maxItems: 1
+
+ iommus:
+ maxItems: 1
+
+ dma-coherent: true
+
+ interconnects:
+ minItems: 2
+ maxItems: 3
+
+ interconnect-names:
+ minItems: 2
+ maxItems: 3
+
+ 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: 0x21
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - resets
+ - reset-names
+ - power-domains
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ enum:
+ - nvidia,tegra210-nvenc
+ - nvidia,tegra186-nvenc
+ then:
+ properties:
+ interconnects:
+ items:
+ - description: DMA read memory client
+ - description: DMA write memory client
+ interconnect-names:
+ items:
+ - const: dma-mem
+ - const: write
+ - if:
+ properties:
+ compatible:
+ enum:
+ - nvidia,tegra194-nvenc
+ then:
+ properties:
+ interconnects:
+ items:
+ - description: DMA read memory client
+ - description: DMA read 2 memory client
+ - description: DMA write memory client
+ interconnect-names:
+ items:
+ - const: dma-mem
+ - const: read-1
+ - const: write
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/tegra186-clock.h>
+ #include <dt-bindings/memory/tegra186-mc.h>
+ #include <dt-bindings/power/tegra186-powergate.h>
+ #include <dt-bindings/reset/tegra186-reset.h>
+
+ nvenc@...c0000 {
+ compatible = "nvidia,tegra186-nvenc";
+ reg = <0x154c0000 0x40000>;
+ clocks = <&bpmp TEGRA186_CLK_NVENC>;
+ clock-names = "nvenc";
+ resets = <&bpmp TEGRA186_RESET_NVENC>;
+ reset-names = "nvenc";
+
+ power-domains = <&bpmp TEGRA186_POWER_DOMAIN_MPE>;
+ interconnects = <&mc TEGRA186_MEMORY_CLIENT_NVENCSRD &emc>,
+ <&mc TEGRA186_MEMORY_CLIENT_NVENCSWR &emc>;
+ interconnect-names = "dma-mem", "write";
+ iommus = <&smmu TEGRA186_SID_NVENC>;
+ };
diff --git a/Documentation/devicetree/bindings/gpu/host1x/nvidia,tegra210-nvjpg.yaml b/Documentation/devicetree/bindings/gpu/host1x/nvidia,tegra210-nvjpg.yaml
new file mode 100644
index 000000000000..8647404d67e4
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpu/host1x/nvidia,tegra210-nvjpg.yaml
@@ -0,0 +1,94 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/gpu/host1x/nvidia,tegra210-nvjpg.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Device tree binding for NVIDIA Tegra NVJPG
+
+description: |
+ NVJPG is the hardware JPEG decoder and encoder present on NVIDIA Tegra210
+ and newer chips. It is located on the Host1x bus and typically programmed
+ through Host1x channels.
+
+maintainers:
+ - Thierry Reding <treding@...il.com>
+ - Mikko Perttunen <mperttunen@...dia.com>
+
+properties:
+ $nodename:
+ pattern: "^nvjpg@[0-9a-f]*$"
+
+ compatible:
+ enum:
+ - nvidia,tegra210-nvjpg
+ - nvidia,tegra186-nvjpg
+ - nvidia,tegra194-nvjpg
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ items:
+ - const: nvjpg
+
+ resets:
+ maxItems: 1
+
+ reset-names:
+ items:
+ - const: nvjpg
+
+ power-domains:
+ maxItems: 1
+
+ iommus:
+ maxItems: 1
+
+ dma-coherent: true
+
+ interconnects:
+ items:
+ - description: DMA read memory client
+ - description: DMA write memory client
+
+ interconnect-names:
+ items:
+ - const: dma-mem
+ - const: write
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - resets
+ - reset-names
+ - power-domains
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/tegra186-clock.h>
+ #include <dt-bindings/memory/tegra186-mc.h>
+ #include <dt-bindings/power/tegra186-powergate.h>
+ #include <dt-bindings/reset/tegra186-reset.h>
+
+ nvjpg@...80000 {
+ compatible = "nvidia,tegra186-nvjpg";
+ reg = <0x15380000 0x40000>;
+ clocks = <&bpmp TEGRA186_CLK_NVJPG>;
+ clock-names = "nvjpg";
+ resets = <&bpmp TEGRA186_RESET_NVJPG>;
+ reset-names = "nvjpg";
+
+ power-domains = <&bpmp TEGRA186_POWER_DOMAIN_NVJPG>;
+ interconnects = <&mc TEGRA186_MEMORY_CLIENT_NVJPGSRD &emc>,
+ <&mc TEGRA186_MEMORY_CLIENT_NVJPGSWR &emc>;
+ interconnect-names = "dma-mem", "write";
+ iommus = <&smmu TEGRA186_SID_NVJPG>;
+ };
--
2.25.1
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