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Date: Wed, 20 Jan 2021 00:19:11 +0100
From: AngeloGioacchino Del Regno
<angelogioacchino.delregno@...ainline.org>
To: Rob Herring <robh@...nel.org>
Cc: stanimir.varbanov@...aro.org, agross@...nel.org,
bjorn.andersson@...aro.org, mchehab@...nel.org,
devicetree@...r.kernel.org, linux-arm-msm@...r.kernel.org,
linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
konrad.dybcio@...ainline.org, marijn.suijten@...ainline.org,
phone-devel@...r.kernel.org
Subject: Re: [PATCH 2/2] media: dt-bindings: media: venus: Add sdm660 DT
schema
Il 20/01/21 00:17, Rob Herring ha scritto:
> On Fri, Jan 15, 2021 at 07:52:52PM +0100, AngeloGioacchino Del Regno wrote:
>> Add new qcom,sdm660-venus DT binding schema.
>>
>> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...ainline.org>
>> ---
>> .../bindings/media/qcom,sdm660-venus.yaml | 164 ++++++++++++++++++
>> 1 file changed, 164 insertions(+)
>> create mode 100644 Documentation/devicetree/bindings/media/qcom,sdm660-venus.yaml
>>
>> base-commit: 012bd807cf654b992cdc4db7eab85c1e95f9d571
>> prerequisite-patch-id: 734bdefdb043a8f91a48916246cc9a36fb5966e5
>> prerequisite-patch-id: 999517c02973237996492a41ed5bfc2990083932
>> prerequisite-patch-id: a48910425fac61948a7a26bec4d40d63e3368569
>> prerequisite-patch-id: b1a1a4216eed0d04dd16e6e8e1053dee185d06d8
>> prerequisite-patch-id: dff12be2631cc21ef1c3c930fba49d979f5055fe
>>
>> diff --git a/Documentation/devicetree/bindings/media/qcom,sdm660-venus.yaml b/Documentation/devicetree/bindings/media/qcom,sdm660-venus.yaml
>> new file mode 100644
>> index 000000000000..e7568d4007af
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/media/qcom,sdm660-venus.yaml
>> @@ -0,0 +1,164 @@
>> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
>> +
>> +%YAML 1.2
>> +---
>> +$id: "http://devicetree.org/schemas/media/qcom,sdm660-venus.yaml#"
>> +$schema: "http://devicetree.org/meta-schemas/core.yaml#"
>> +
>> +title: Qualcomm Venus video encode and decode accelerators
>> +
>> +maintainers:
>> + - Stanimir Varbanov <stanimir.varbanov@...aro.org>
>> +
>> +description: |
>> + The Venus IP is a video encode and decode accelerator present
>> + on Qualcomm platforms
>> +
>> +properties:
>> + compatible:
>> + const: qcom,sdm660-venus
>> +
>> + reg:
>> + maxItems: 1
>> +
>> + interrupts:
>> + maxItems: 1
>> +
>> + clocks:
>> + maxItems: 5
>> +
>> + clock-names:
>> + items:
>> + - const: core
>> + - const: iface
>> + - const: bus
>> + - const: bus_throttle
>> + - const: vcodec0_core
>> +
>> + interconnects:
>> + maxItems: 2
>> +
>> + interconnect-names:
>> + items:
>> + - const: video-mem
>> + - const: cpu-cfg
>> +
>> + iommus:
>> + maxItems: 20
>
> Perhaps some explanation as to what all these are. Looks like it is just
> 1 iommu, but lots of ids?
>
Sincerely? I have no idea. These are all of the non-secure IDs that
are used downstream, but as you can imagine, there is zero documentation
about them.
Though, that's what works and that's what I've pushed... that's all :\
>> +
>> + memory-region:
>> + maxItems: 1
>> +
>> + power-domains:
>> + minItems: 3
>> +
>> + power-domain-names:
>> + items:
>> + - const: cx
>> + - const: vcodec0
>> + - const: venus
>> +
>> + video-decoder:
>> + type: object
>> +
>> + properties:
>> + compatible:
>> + const: venus-decoder
>> +
>> + required:
>> + - compatible
>> +
>> + additionalProperties: false
>> +
>> + video-encoder:
>> + type: object
>> +
>> + properties:
>> + compatible:
>> + const: venus-encoder
>> +
>> + required:
>> + - compatible
>> +
>> + additionalProperties: false
>> +
>> + video-firmware:
>> + type: object
>> +
>> + description: |
>> + Firmware subnode is needed when the platform does not
>> + have TrustZone.
>> +
>> + properties:
>> + iommus:
>> + maxItems: 2
>> +
>> + required:
>> + - iommus
>> +
>> +required:
>> + - compatible
>> + - reg
>> + - interrupts
>> + - power-domains
>> + - power-domain-names
>> + - clocks
>> + - clock-names
>> + - iommus
>> + - memory-region
>> + - video-decoder
>> + - video-encoder
>> +
>> +additionalProperties: false
>> +
>> +examples:
>> + - |
>> + #include <dt-bindings/interrupt-controller/arm-gic.h>
>> + #include <dt-bindings/clock/qcom,mmcc-sdm660.h>
>> + #include <dt-bindings/power/qcom-rpmpd.h>
>> +
>> + video-codec@...0000 {
>> + compatible = "qcom,sdm660-venus";
>> + reg = <0x0cc00000 0xff000>;
>> + interrupts = <GIC_SPI 287 IRQ_TYPE_LEVEL_HIGH>;
>> + power-domains = <&rpmpd SDM660_VDDCX>,
>> + <&mmcc VENUS_CORE0_GDSC>,
>> + <&mmcc VENUS_GDSC>;
>> + power-domain-names = "cx", "vcodec0", "venus";
>> + clocks = <&mmcc VIDEO_CORE_CLK>,
>> + <&mmcc VIDEO_AHB_CLK>,
>> + <&mmcc VIDEO_AXI_CLK>,
>> + <&mmcc THROTTLE_VIDEO_AXI_CLK>,
>> + <&mmcc VIDEO_SUBCORE0_CLK>;
>> + clock-names = "core", "iface", "bus", "bus_throttle",
>> + "vcodec0_core";
>> + iommus = <&mmss_smmu 0x400>,
>> + <&mmss_smmu 0x401>,
>> + <&mmss_smmu 0x40a>,
>> + <&mmss_smmu 0x407>,
>> + <&mmss_smmu 0x40e>,
>> + <&mmss_smmu 0x40f>,
>> + <&mmss_smmu 0x408>,
>> + <&mmss_smmu 0x409>,
>> + <&mmss_smmu 0x40b>,
>> + <&mmss_smmu 0x40c>,
>> + <&mmss_smmu 0x40d>,
>> + <&mmss_smmu 0x410>,
>> + <&mmss_smmu 0x421>,
>> + <&mmss_smmu 0x428>,
>> + <&mmss_smmu 0x429>,
>> + <&mmss_smmu 0x42b>,
>> + <&mmss_smmu 0x42c>,
>> + <&mmss_smmu 0x42d>,
>> + <&mmss_smmu 0x411>,
>> + <&mmss_smmu 0x431>;
>> + memory-region = <&venus_region>;
>> +
>> + video-decoder {
>> + compatible = "venus-decoder";
>> + };
>> +
>> + video-encoder {
>> + compatible = "venus-encoder";
>> + };
>> + };
>> --
>> 2.29.2
>>
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