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Subject: Re: [PATCH v2 1/2] dt-bindings: devfreq: tegra30-actmon: Convert to
 schema
To:     Chanwoo Choi <cw00.choi@samsung.com>,
        Thierry Reding <thierry.reding@gmail.com>,
        Jonathan Hunter <jonathanh@nvidia.com>,
        MyungJoo Ham <myungjoo.ham@samsung.com>,
        Kyungmin Park <kyungmin.park@samsung.com>,
        Peter Geis <pgwipeout@gmail.com>,
        Matt Merhar <mattmerhar@protonmail.com>
Cc:     linux-tegra@vger.kernel.org, linux-pm@vger.kernel.org,
        Rob Herring <robh+dt@kernel.org>, linux-kernel@vger.kernel.org,
        devicetree@vger.kernel.org
References: <20210601022319.17938-1-digetx@gmail.com>
 <CGME20210601022420epcas1p3bc087871724a7a9e7cc1569daa2631ab@epcas1p3.samsung.com>
 <20210601022319.17938-2-digetx@gmail.com>
 <6bfdbc0c-bda0-3d43-e103-4d0611966b47@samsung.com>
From:   Dmitry Osipenko <digetx@gmail.com>
Message-ID: <b7fecb2c-c59a-52ce-1cdf-ae71ee509132@gmail.com>
Date:   Tue, 1 Jun 2021 05:57:35 +0300
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01.06.2021 05:55, Chanwoo Choi пишет:
> On 6/1/21 11:23 AM, Dmitry Osipenko wrote:
>> Convert NVIDIA Tegra ACTMON binding to schema.
>>
>> Reviewed-by: Rob Herring <robh@kernel.org>
>> Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
>> Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
>> ---
>>  .../arm/tegra/nvidia,tegra30-actmon.txt       |  57 ---------
>>  .../devfreq/nvidia,tegra30-actmon.yaml        | 121 ++++++++++++++++++
>>  2 files changed, 121 insertions(+), 57 deletions(-)
>>  delete mode 100644 Documentation/devicetree/bindings/arm/tegra/nvidia,tegra30-actmon.txt
>>  create mode 100644 Documentation/devicetree/bindings/devfreq/nvidia,tegra30-actmon.yaml
>>
>> diff --git a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra30-actmon.txt b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra30-actmon.txt
>> deleted file mode 100644
>> index 897eedfa2bc8..000000000000
>> --- a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra30-actmon.txt
>> +++ /dev/null
>> @@ -1,57 +0,0 @@
>> -NVIDIA Tegra Activity Monitor
>> -
>> -The activity monitor block collects statistics about the behaviour of other
>> -components in the system. This information can be used to derive the rate at
>> -which the external memory needs to be clocked in order to serve all requests
>> -from the monitored clients.
>> -
>> -Required properties:
>> -- compatible: should be "nvidia,tegra<chip>-actmon"
>> -- reg: offset and length of the register set for the device
>> -- interrupts: standard interrupt property
>> -- clocks: Must contain a phandle and clock specifier pair for each entry in
>> -clock-names. See ../../clock/clock-bindings.txt for details.
>> -- clock-names: Must include the following entries:
>> -  - actmon
>> -  - emc
>> -- resets: Must contain an entry for each entry in reset-names. See
>> -../../reset/reset.txt for details.
>> -- reset-names: Must include the following entries:
>> -  - actmon
>> -- operating-points-v2: See ../bindings/opp/opp.txt for details.
>> -- interconnects: Should contain entries for memory clients sitting on
>> -                 MC->EMC memory interconnect path.
>> -- interconnect-names: Should include name of the interconnect path for each
>> -                      interconnect entry. Consult TRM documentation for
>> -                      information about available memory clients, see MEMORY
>> -                      CONTROLLER section.
>> -
>> -For each opp entry in 'operating-points-v2' table:
>> -- opp-supported-hw: bitfield indicating SoC speedo ID mask
>> -- opp-peak-kBps: peak bandwidth of the memory channel
>> -
>> -Example:
>> -	dfs_opp_table: opp-table {
>> -		compatible = "operating-points-v2";
>> -
>> -		opp@12750000 {
>> -			opp-hz = /bits/ 64 <12750000>;
>> -			opp-supported-hw = <0x000F>;
>> -			opp-peak-kBps = <51000>;
>> -		};
>> -		...
>> -	};
>> -
>> -	actmon@6000c800 {
>> -		compatible = "nvidia,tegra124-actmon";
>> -		reg = <0x0 0x6000c800 0x0 0x400>;
>> -		interrupts = <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>;
>> -		clocks = <&tegra_car TEGRA124_CLK_ACTMON>,
>> -			 <&tegra_car TEGRA124_CLK_EMC>;
>> -		clock-names = "actmon", "emc";
>> -		resets = <&tegra_car 119>;
>> -		reset-names = "actmon";
>> -		operating-points-v2 = <&dfs_opp_table>;
>> -		interconnects = <&mc TEGRA124_MC_MPCORER &emc>;
>> -		interconnect-names = "cpu";
>> -	};
>> diff --git a/Documentation/devicetree/bindings/devfreq/nvidia,tegra30-actmon.yaml b/Documentation/devicetree/bindings/devfreq/nvidia,tegra30-actmon.yaml
>> new file mode 100644
>> index 000000000000..ba938eed28ee
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/devfreq/nvidia,tegra30-actmon.yaml
>> @@ -0,0 +1,121 @@
>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
>> +%YAML 1.2
>> +---
>> +$id: https://protect2.fireeye.com/v1/url?k=c852e9c6-97c9d0fb-c8536289-0cc47a31309a-748d620b8cc48f8b&q=1&e=c1b6a671-e53d-468c-81f5-3e23bd2e67d9&u=http%3A%2F%2Fdevicetree.org%2Fschemas%2Fdevfreq%2Fnvidia%2Ctegra30-actmon.yaml%23
>> +$schema: https://protect2.fireeye.com/v1/url?k=1abc12fa-45272bc7-1abd99b5-0cc47a31309a-ca738d567d90525e&q=1&e=c1b6a671-e53d-468c-81f5-3e23bd2e67d9&u=http%3A%2F%2Fdevicetree.org%2Fmeta-schemas%2Fcore.yaml%23
>> +
>> +title: NVIDIA Tegra30 Activity Monitor
>> +
>> +maintainers:
>> +  - Dmitry Osipenko <digetx@gmail.com>
>> +  - Jon Hunter <jonathanh@nvidia.com>
>> +  - Thierry Reding <thierry.reding@gmail.com>
>> +
>> +description: |
>> +  The activity monitor block collects statistics about the behaviour of other
>> +  components in the system. This information can be used to derive the rate at
>> +  which the external memory needs to be clocked in order to serve all requests
>> +  from the monitored clients.
>> +
>> +properties:
>> +  compatible:
>> +    enum:
>> +      - nvidia,tegra30-actmon
>> +      - nvidia,tegra114-actmon
>> +      - nvidia,tegra124-actmon
>> +      - nvidia,tegra210-actmon
>> +
>> +  reg:
>> +    maxItems: 1
>> +
>> +  clocks:
>> +    maxItems: 2
>> +
>> +  clock-names:
>> +    items:
>> +      - const: actmon
>> +      - const: emc
>> +
>> +  resets:
>> +    maxItems: 1
>> +
>> +  reset-names:
>> +    items:
>> +      - const: actmon
>> +
>> +  interrupts:
>> +    maxItems: 1
>> +
>> +  interconnects:
>> +    minItems: 1
>> +    maxItems: 12
>> +
>> +  interconnect-names:
>> +    minItems: 1
>> +    maxItems: 12
>> +    description:
>> +      Should include name of the interconnect path for each interconnect
>> +      entry. Consult TRM documentation for information about available
>> +      memory clients, see MEMORY CONTROLLER and ACTIVITY MONITOR sections.
>> +
>> +  operating-points-v2:
>> +    description:
>> +      Should contain freqs and voltages and opp-supported-hw property, which
>> +      is a bitfield indicating SoC speedo ID mask.
>> +
>> +required:
>> +  - compatible
>> +  - reg
>> +  - clocks
>> +  - clock-names
>> +  - resets
>> +  - reset-names
>> +  - interrupts
>> +  - interconnects
>> +  - interconnect-names
>> +  - operating-points-v2
>> +
>> +additionalProperties: false
>> +
>> +examples:
>> +  - |
>> +    #include <dt-bindings/memory/tegra30-mc.h>
>> +
>> +    mc: memory-controller@7000f000 {
>> +        compatible = "nvidia,tegra30-mc";
>> +        reg = <0x7000f000 0x400>;
>> +        clocks = <&clk 32>;
>> +        clock-names = "mc";
>> +
>> +        interrupts = <0 77 4>;
>> +
>> +        #iommu-cells = <1>;
>> +        #reset-cells = <1>;
>> +        #interconnect-cells = <1>;
>> +    };
>> +
>> +    emc: external-memory-controller@7000f400 {
>> +        compatible = "nvidia,tegra30-emc";
>> +        reg = <0x7000f400 0x400>;
>> +        interrupts = <0 78 4>;
>> +        clocks = <&clk 57>;
>> +
>> +        nvidia,memory-controller = <&mc>;
>> +        operating-points-v2 = <&dvfs_opp_table>;
>> +        power-domains = <&domain>;
>> +
>> +        #interconnect-cells = <0>;
>> +    };
>> +
>> +    actmon@6000c800 {
>> +        compatible = "nvidia,tegra30-actmon";
>> +        reg = <0x6000c800 0x400>;
>> +        interrupts = <0 45 4>;
>> +        clocks = <&clk 119>, <&clk 57>;
>> +        clock-names = "actmon", "emc";
>> +        resets = <&rst 119>;
>> +        reset-names = "actmon";
>> +        operating-points-v2 = <&dvfs_opp_table>;
>> +        interconnects = <&mc TEGRA30_MC_MPCORER &emc>;
>> +        interconnect-names = "cpu-read";
>> +    };
>>
> 
> If tegra maintainer confirms this patch, I'll take it.

Okay, thank you.