netdev - Re: [PATCH v3 1/2] dt-bindings: net: bluetooth: Add MediaTek MT7921S SDIO Bluetooth

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Message-ID: <171322232789.252337.16326980700188367647.robh@kernel.org>
Date: Mon, 15 Apr 2024 18:05:30 -0500
From: Rob Herring <robh@...nel.org>
To: Chen-Yu Tsai <wenst@...omium.org>
Cc: Matthias Brugger <matthias.bgg@...il.com>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	devicetree@...r.kernel.org,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
	linux-bluetooth@...r.kernel.org, Rob Herring <robh+dt@...nel.org>,
	netdev@...r.kernel.org, Marcel Holtmann <marcel@...tmann.org>,
	linux-arm-kernel@...ts.infradead.org,
	Luiz Augusto von Dentz <luiz.dentz@...il.com>,
	Sean Wang <sean.wang@...iatek.com>, linux-kernel@...r.kernel.org,
	linux-mediatek@...ts.infradead.org,
	Conor Dooley <conor+dt@...nel.org>
Subject: Re: [PATCH v3 1/2] dt-bindings: net: bluetooth: Add MediaTek MT7921S
 SDIO Bluetooth


On Fri, 12 Apr 2024 15:30:42 +0800, Chen-Yu Tsai wrote:
> The MediaTek MT7921S is a WiFi/Bluetooth combo chip that works over
> SDIO. WiFi and Bluetooth are separate SDIO functions within the chip.
> While the Bluetooth SDIO function is fully discoverable, the chip has
> a pin that can reset just the Bluetooth core, as opposed to the full
> chip. This should be described in the device tree.
> 
> Add a device tree binding for the Bluetooth SDIO function of the MT7921S
> specifically to document the reset line. This binding is based on the MMC
> controller binding, which specifies one device node per SDIO function.
> 
> Cc: Sean Wang <sean.wang@...iatek.com>
> Signed-off-by: Chen-Yu Tsai <wenst@...omium.org>
> ---
> Changes since v2:
> - Expand description and commit message to clearly state that WiFi and
>   Bluetooth are separate SDIO functions, and that each function should
>   be a separate device node, as specified by the MMC binding.
> - Change 'additionalProperties' to 'unevaluatedProperties'
> - Add missing separating new line
> - s/ot/to/
> 
> Angelo's reviewed-by was not picked up due to the above changes.
> 
> Changes since v1:
> - Reworded descriptions
> - Moved binding maintainer section before description
> - Added missing reference to bluetooth-controller.yaml
> - Added missing GPIO header to example
> ---
>  .../bluetooth/mediatek,mt7921s-bluetooth.yaml | 55 +++++++++++++++++++
>  MAINTAINERS                                   |  1 +
>  2 files changed, 56 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/net/bluetooth/mediatek,mt7921s-bluetooth.yaml
> 

Reviewed-by: Rob Herring <robh@...nel.org>