Re: [PATCH 1/2] dt-bindings: net: Convert ATH10K to YAML

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On 6.04.2023 10:06, Krzysztof Kozlowski wrote:
> On 06/04/2023 02:59, Konrad Dybcio wrote:
>> Convert the ATH10K bindings to YAML.
>>
>> Dropped properties that are absent at the current state of mainline:
>> - qcom,msi_addr
>> - qcom,msi_base
>>
>> qcom,coexist-support and qcom,coexist-gpio-pin do very little and should
>> be reconsidered on the driver side, especially the latter one.
>>
>> Somewhat based on the ath11k bindings.
>>
Ack to everything, thanks

Konrad
> 
> Thank you for your patch. There is something to discuss/improve.
> 
>> diff --git a/Documentation/devicetree/bindings/net/wireless/qcom,ath10k.yaml b/Documentation/devicetree/bindings/net/wireless/qcom,ath10k.yaml
>> new file mode 100644
>> index 000000000000..2ff004e404d9
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/net/wireless/qcom,ath10k.yaml
>> @@ -0,0 +1,357 @@
>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
>> +%YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/net/wireless/qcom,ath10k.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: Qualcomm Technologies ATH10K wireless devices
>> +
>> +maintainers:
>> +  - Kalle Valo <kvalo@xxxxxxxxxx>
>> +
>> +description: |
> 
> Do not need '|'.
> 
>> +  Qualcomm Technologies, Inc. IEEE 802.11ac devices.
>> +
>> +properties:
>> +  compatible:
>> +    enum:
>> +      - qcom,ath10k # SDIO-based devices
>> +      - qcom,ipq4019-wifi
>> +      - qcom,wcn3990-wifi # SNoC-based devices
>> +
>> +  reg:
>> +    maxItems: 1
>> +
>> +  reg-names:
>> +    items:
>> +      - const: membase
>> +
>> +  interrupts:
>> +    minItems: 12
>> +    maxItems: 17
>> +
>> +  interrupt-names:
>> +    minItems: 12
>> +    maxItems: 17
>> +
>> +  memory-region:
>> +    maxItems: 1
>> +    description:
>> +      Reference to the MSA memory region used by the Wi-Fi firmware
>> +      running on the Q6 core.
>> +
>> +  iommus:
>> +    minItems: 1
>> +    maxItems: 2
>> +
>> +  clocks:
>> +    minItems: 1
>> +    maxItems: 3
>> +
>> +  clock-names:
>> +    minItems: 1
>> +    maxItems: 3
>> +
>> +  resets:
>> +    minItems: 6
> 
> Drop minItems here.
> 
>> +    maxItems: 6
>> +
>> +  reset-names:
>> +    items:
>> +      - const: wifi_cpu_init
>> +      - const: wifi_radio_srif
>> +      - const: wifi_radio_warm
>> +      - const: wifi_radio_cold
>> +      - const: wifi_core_warm
>> +      - const: wifi_core_cold
>> +
>> +  ext-fem-name:
>> +    $ref: /schemas/types.yaml#/definitions/string
>> +    description: Name of external front end module used.
>> +    items:
> 
> Drop items (it's just enum)
> 
>> +      enum:
>> +        - microsemi-lx5586
>> +        - sky85703-11
>> +        - sky85803
>> +
>> +  wifi-firmware:
>> +    type: object
> 
> additionalProperties: false
> 
>> +    description: |
>> +      The ATH10K Wi-Fi node can contain one optional firmware subnode.
>> +      Firmware subnode is needed when the platform does not have Trustzone.
> 
> properties:
>   iommus:
>     maxItems: 1
> 
>> +    required:
>> +      - iommus
>> +
>> +  qcom,ath10k-calibration-data:
>> +    $ref: /schemas/types.yaml#/definitions/uint8-array
>> +    description:
>> +      Calibration data + board-specific data as a byte array. The length
>> +      can vary between hardware versions.
>> +
>> +  qcom,ath10k-calibration-variant:
>> +    $ref: /schemas/types.yaml#/definitions/string
>> +    description:
>> +      Unique variant identifier of the calibration data in board-2.bin
>> +      for designs with colliding bus and device specific ids
>> +
>> +  qcom,ath10k-pre-calibration-data:
>> +    $ref: /schemas/types.yaml#/definitions/uint8-array
>> +    description:
>> +      Pre-calibration data as a byte array. The length can vary between
>> +      hardware versions.
>> +
>> +  qcom,coexist-support:
>> +    $ref: /schemas/types.yaml#/definitions/uint8
> 
> enum: [0, 1]
> 
>> +    description:
>> +      0 or 1 to indicate coex support by the hardware.
>> +
>> +  qcom,coexist-gpio-pin:
>> +    $ref: /schemas/types.yaml#/definitions/uint32
>> +    description:
>> +      COEX GPIO number provided to the Wi-Fi firmware.
>> +
>> +  qcom,msa-fixed-perm:
>> +    type: boolean
>> +    description:
>> +      Whether to skip executing an SCM call that reassigns the memory
>> +      region ownership.
>> +
>> +  qcom,smem-states:
>> +    $ref: /schemas/types.yaml#/definitions/phandle-array
>> +    description: State bits used by the AP to signal the WLAN Q6.
>> +    items:
>> +      - description: Signal bits used to enable/disable low power mode
>> +                     on WCN in the case of WoW (Wake on Wireless).
>> +
>> +  qcom,smem-state-names:
>> +    description: The names of the state bits used for SMP2P output.
>> +    items:
>> +      - const: wlan-smp2p-out
>> +
>> +  qcom,snoc-host-cap-8bit-quirk:
>> +    type: boolean
>> +    description:
>> +      Quirk specifying that the firmware expects the 8bit version
>> +      of the host capability QMI request
>> +
>> +  qcom,xo-cal-data:
>> +    $ref: /schemas/types.yaml#/definitions/uint32
>> +    description:
>> +      XO cal offset to be configured in XO trim register.
>> +
>> +  vdd-0.8-cx-mx-supply:
>> +    description: Main logic power rail
>> +
>> +  vdd-1.8-xo-supply:
>> +    description: Crystal oscillator supply
>> +
>> +  vdd-1.3-rfa-supply:
>> +    description: RFA supply
>> +
>> +  vdd-3.3-ch0-supply:
>> +    description: Primary Wi-Fi antenna supply
>> +
>> +  vdd-3.3-ch1-supply:
>> +    description: Secondary Wi-Fi antenna supply
>> +
>> +required:
>> +  - compatible
>> +  - reg
>> +
>> +additionalProperties: false
>> +
>> +allOf:
>> +  - if:
>> +      properties:
>> +        compatible:
>> +          contains:
>> +            enum:
>> +              - qcom,ipq4019-wifi
>> +    then:
>> +      properties:
>> +        interrupts:
>> +          minItems: 17
>> +          maxItems: 17
>> +
>> +        interrupt-names:
>> +          minItems: 17
>> +          items:
>> +            - const: msi0
>> +            - const: msi1
>> +            - const: msi2
>> +            - const: msi3
>> +            - const: msi4
>> +            - const: msi5
>> +            - const: msi6
>> +            - const: msi7
>> +            - const: msi8
>> +            - const: msi9
>> +            - const: msi10
>> +            - const: msi11
>> +            - const: msi12
>> +            - const: msi13
>> +            - const: msi14
>> +            - const: msi15
>> +            - const: legacy
>> +
>> +        clocks:
>> +          items:
>> +            - description: Wi-Fi command clock
>> +            - description: Wi-Fi reference clock
>> +            - description: Wi-Fi RTC clock
>> +
>> +        clock-names:
>> +          items:
>> +            - const: wifi_wcss_cmd
>> +            - const: wifi_wcss_ref
>> +            - const: wifi_wcss_rtc
>> +
>> +      required:
>> +        - clocks
>> +        - clock-names
>> +        - interrupts
>> +        - interrupt-names
>> +        - resets
>> +        - reset-names
>> +
>> +  - if:
>> +      properties:
>> +        compatible:
>> +          contains:
>> +            enum:
>> +              - qcom,wcn3990-wifi
>> +
>> +    then:
>> +      properties:
>> +        clocks:
>> +          minItems: 1
>> +          items:
>> +            - description: XO reference clock
>> +            - description: Qualcomm Debug Subsystem clock
>> +
>> +        clock-names:
>> +          minItems: 1
>> +          items:
>> +            - const: cxo_ref_clk_pin
>> +            - const: qdss
>> +
>> +        interrupts:
>> +          items:
>> +            - description: CE0
>> +            - description: CE1
>> +            - description: CE2
>> +            - description: CE3
>> +            - description: CE4
>> +            - description: CE5
>> +            - description: CE6
>> +            - description: CE7
>> +            - description: CE8
>> +            - description: CE9
>> +            - description: CE10
>> +            - description: CE11
>> +
>> +      required:
>> +        - interrupts
>> +
>> +examples:
>> +  # SNoC
>> +  - |
>> +    #include <dt-bindings/clock/qcom,rpmcc.h>
>> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
>> +
>> +    reserved-memory {
>> +        #address-cells = <2>;
>> +        #size-cells = <2>;
>> +
>> +        wlan_msa_mem: memory@4cd000 {
>> +            no-map;
>> +            reg = <0x0 0x004cd000 0x0 0x1000>;
>> +        };
>> +    };
> 
> Drop the reserved memory node, it's more-or-less obvious (same everywhere).
> 
>> +
>> +    wifi: wifi@18800000 {
> 
> Drop label.
> 
>> +      compatible = "qcom,wcn3990-wifi";
>> +      reg = <0x18800000 0x800000>;
>> +      reg-names = "membase";
>> +      memory-region = <&wlan_msa_mem>;
>> +      clocks = <&rpmcc RPM_SMD_RF_CLK2_PIN>;
>> +      clock-names = "cxo_ref_clk_pin";
>> +      interrupts = <GIC_SPI 413 IRQ_TYPE_LEVEL_HIGH>,
>> +                   <GIC_SPI 414 IRQ_TYPE_LEVEL_HIGH>,
>> +                   <GIC_SPI 415 IRQ_TYPE_LEVEL_HIGH>,
>> +                   <GIC_SPI 416 IRQ_TYPE_LEVEL_HIGH>,
>> +                   <GIC_SPI 417 IRQ_TYPE_LEVEL_HIGH>,
>> +                   <GIC_SPI 418 IRQ_TYPE_LEVEL_HIGH>,
>> +                   <GIC_SPI 420 IRQ_TYPE_LEVEL_HIGH>,
>> +                   <GIC_SPI 421 IRQ_TYPE_LEVEL_HIGH>,
>> +                   <GIC_SPI 422 IRQ_TYPE_LEVEL_HIGH>,
>> +                   <GIC_SPI 423 IRQ_TYPE_LEVEL_HIGH>,
>> +                   <GIC_SPI 424 IRQ_TYPE_LEVEL_HIGH>,
>> +                   <GIC_SPI 425 IRQ_TYPE_LEVEL_HIGH>;
>> +      iommus = <&anoc2_smmu 0x1900>,
>> +               <&anoc2_smmu 0x1901>;
>> +      qcom,snoc-host-cap-8bit-quirk;
>> +      status = "disabled";
> 
> Drop status from examples.
> 
> The example looks a bit incomplete. Please add supplies and
> wifi-firmware node.
> 
>> +    };
>> +
>> +  # AHB
>> +  - |
>> +    #include <dt-bindings/clock/qcom,gcc-ipq4019.h>
>> +
>> +    wifi0: wifi@a000000 {
> 
> Drop label.
> 
>> +        compatible = "qcom,ipq4019-wifi";
>> +        reg = <0xa000000 0x200000>;
>> +        resets = <&gcc WIFI0_CPU_INIT_RESET>,
>> +                 <&gcc WIFI0_RADIO_SRIF_RESET>,
>> +                 <&gcc WIFI0_RADIO_WARM_RESET>,
>> +                 <&gcc WIFI0_RADIO_COLD_RESET>,
>> +                 <&gcc WIFI0_CORE_WARM_RESET>,
>> +                 <&gcc WIFI0_CORE_COLD_RESET>;
>> +        reset-names = "wifi_cpu_init",
>> +                      "wifi_radio_srif",
>> +                      "wifi_radio_warm",
>> +                      "wifi_radio_cold",
>> +                      "wifi_core_warm",
>> +                      "wifi_core_cold";
>> +        clocks = <&gcc GCC_WCSS2G_CLK>,
>> +                 <&gcc GCC_WCSS2G_REF_CLK>,
>> +                 <&gcc GCC_WCSS2G_RTC_CLK>;
>> +        clock-names = "wifi_wcss_cmd",
>> +                      "wifi_wcss_ref",
>> +                      "wifi_wcss_rtc";
>> +        interrupts = <GIC_SPI 32 IRQ_TYPE_EDGE_RISING>,
>> +                     <GIC_SPI 33 IRQ_TYPE_EDGE_RISING>,
>> +                     <GIC_SPI 34 IRQ_TYPE_EDGE_RISING>,
>> +                     <GIC_SPI 35 IRQ_TYPE_EDGE_RISING>,
>> +                     <GIC_SPI 36 IRQ_TYPE_EDGE_RISING>,
>> +                     <GIC_SPI 37 IRQ_TYPE_EDGE_RISING>,
>> +                     <GIC_SPI 38 IRQ_TYPE_EDGE_RISING>,
>> +                     <GIC_SPI 39 IRQ_TYPE_EDGE_RISING>,
>> +                     <GIC_SPI 40 IRQ_TYPE_EDGE_RISING>,
>> +                     <GIC_SPI 41 IRQ_TYPE_EDGE_RISING>,
>> +                     <GIC_SPI 42 IRQ_TYPE_EDGE_RISING>,
>> +                     <GIC_SPI 43 IRQ_TYPE_EDGE_RISING>,
>> +                     <GIC_SPI 44 IRQ_TYPE_EDGE_RISING>,
>> +                     <GIC_SPI 45 IRQ_TYPE_EDGE_RISING>,
>> +                     <GIC_SPI 46 IRQ_TYPE_EDGE_RISING>,
>> +                     <GIC_SPI 47 IRQ_TYPE_EDGE_RISING>,
>> +                     <GIC_SPI 168 IRQ_TYPE_LEVEL_HIGH>;
>> +        interrupt-names =  "msi0",
>> +                           "msi1",
>> +                           "msi2",
>> +                           "msi3",
>> +                           "msi4",
>> +                           "msi5",
>> +                           "msi6",
>> +                           "msi7",
>> +                           "msi8",
>> +                           "msi9",
>> +                           "msi10",
>> +                           "msi11",
>> +                           "msi12",
>> +                           "msi13",
>> +                           "msi14",
>> +                           "msi15",
>> +                           "legacy";
>> +        status = "disabled";
> 
> Ditto
> 
>> +      };
>>
> 
> Best regards,
> Krzysztof
> 



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