netdev - Re: [PATCH net-next 01/12] dt-bindings: net: bcm4329-fmac: Add Apple properties & chips

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Date:   Wed, 7 Sep 2022 11:25:48 +0200 (CEST)
From:   Mark Kettenis <mark.kettenis@...all.nl>
To:     Russell King (Oracle) <rmk+kernel@...linux.org.uk>
Cc:     aspriel@...il.com, franky.lin@...adcom.com,
        hante.meuleman@...adcom.com, alyssa@...enzweig.io,
        asahi@...ts.linux.dev, brcm80211-dev-list.pdl@...adcom.com,
        davem@...emloft.net, devicetree@...r.kernel.org,
        edumazet@...gle.com, marcan@...can.st, kuba@...nel.org,
        kvalo@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
        pabeni@...hat.com, zajec5@...il.com, robh+dt@...nel.org,
        SHA-cyfmac-dev-list@...ineon.com, sven@...npeter.dev,
        arend@...adcom.com
Subject: Re: [PATCH net-next 01/12] dt-bindings: net: bcm4329-fmac: Add Apple
 properties & chips

> From: Russell King (Oracle) <rmk+kernel@...linux.org.uk>
> Date: Wed, 07 Sep 2022 08:47:46 +0100
> 
> From: Hector Martin <marcan@...can.st>
> 
> This binding is currently used for SDIO devices, but these chips are
> also used as PCIe devices on DT platforms and may be represented in the
> DT. Re-use the existing binding and add chip compatibles used by Apple
> T2 and M1 platforms (the T2 ones are not known to be used in DT
> platforms, but we might as well document them).
> 
> Then, add properties required for firmware selection and calibration on
> M1 machines.
> 
> Reviewed-by: Linus Walleij <linus.walleij@...aro.org>
> Signed-off-by: Hector Martin <marcan@...can.st>
> Signed-off-by: Russell King (Oracle) <rmk+kernel@...linux.org.uk>

Reviewed-by: Mark Kettenis <kettenis@...nbsd.org>

> ---
>  .../net/wireless/brcm,bcm4329-fmac.yaml       | 37 +++++++++++++++++--
>  1 file changed, 34 insertions(+), 3 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/net/wireless/brcm,bcm4329-fmac.yaml b/Documentation/devicetree/bindings/net/wireless/brcm,bcm4329-fmac.yaml
> index 53b4153d9bfc..53ded82b273a 100644
> --- a/Documentation/devicetree/bindings/net/wireless/brcm,bcm4329-fmac.yaml
> +++ b/Documentation/devicetree/bindings/net/wireless/brcm,bcm4329-fmac.yaml
> @@ -4,7 +4,7 @@
>  $id: http://devicetree.org/schemas/net/wireless/brcm,bcm4329-fmac.yaml#
>  $schema: http://devicetree.org/meta-schemas/core.yaml#
>  
> -title: Broadcom BCM4329 family fullmac wireless SDIO devices
> +title: Broadcom BCM4329 family fullmac wireless SDIO/PCIE devices
>  
>  maintainers:
>    - Arend van Spriel <arend@...adcom.com>
> @@ -42,10 +42,16 @@ title: Broadcom BCM4329 family fullmac wireless SDIO devices
>                - cypress,cyw43012-fmac
>            - const: brcm,bcm4329-fmac
>        - const: brcm,bcm4329-fmac
> +      - enum:
> +          - pci14e4,43dc  # BCM4355
> +          - pci14e4,4464  # BCM4364
> +          - pci14e4,4488  # BCM4377
> +          - pci14e4,4425  # BCM4378
> +          - pci14e4,4433  # BCM4387
>  
>    reg:
> -    description: SDIO function number for the device, for most cases
> -      this will be 1.
> +    description: SDIO function number for the device (for most cases
> +      this will be 1) or PCI device identifier.
>  
>    interrupts:
>      maxItems: 1
> @@ -85,6 +91,31 @@ title: Broadcom BCM4329 family fullmac wireless SDIO devices
>        takes precedence.
>      type: boolean
>  
> +  brcm,cal-blob:
> +    $ref: /schemas/types.yaml#/definitions/uint8-array
> +    description: A per-device calibration blob for the Wi-Fi radio. This
> +      should be filled in by the bootloader from platform configuration
> +      data, if necessary, and will be uploaded to the device if present.
> +
> +  brcm,board-type:
> +    $ref: /schemas/types.yaml#/definitions/string
> +    description: Overrides the board type, which is normally the compatible of
> +      the root node. This can be used to decouple the overall system board or
> +      device name from the board type for WiFi purposes, which is used to
> +      construct firmware and NVRAM configuration filenames, allowing for
> +      multiple devices that share the same module or characteristics for the
> +      WiFi subsystem to share the same firmware/NVRAM files. On Apple platforms,
> +      this should be the Apple module-instance codename prefixed by "apple,",
> +      e.g. "apple,honshu".
> +
> +  apple,antenna-sku:
> +    $ref: /schemas/types.yaml#/definitions/string
> +    description: Antenna SKU used to identify a specific antenna configuration
> +      on Apple platforms. This is use to build firmware filenames, to allow
> +      platforms with different antenna configs to have different firmware and/or
> +      NVRAM. This would normally be filled in by the bootloader from platform
> +      configuration data.
> +
>  required:
>    - compatible
>    - reg
> -- 
> 2.30.2
> 
> 
>