netdev - Re: [PATCH v2 2/2] arm64: dts: mediatek: mt8183-pico6: Fix bluetooth node

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Date: Mon, 29 Jan 2024 17:36:44 +0100
From: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
To: Paul Menzel <pmenzel@...gen.mpg.de>, Chen-Yu Tsai <wenst@...omium.org>
Cc: Marcel Holtmann <marcel@...tmann.org>,
 Luiz Augusto von Dentz <luiz.dentz@...il.com>,
 Rob Herring <robh+dt@...nel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
 Conor Dooley <conor+dt@...nel.org>, Matthias Brugger
 <matthias.bgg@...il.com>, Sean Wang <sean.wang@...iatek.com>,
 linux-bluetooth@...r.kernel.org, netdev@...r.kernel.org,
 linux-mediatek@...ts.infradead.org, devicetree@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 2/2] arm64: dts: mediatek: mt8183-pico6: Fix bluetooth
 node

Il 29/01/24 17:31, Paul Menzel ha scritto:
> Dear Chen-Yu,
> 
> 
> Thank you for your patch.
> 
> Am 26.01.24 um 07:34 schrieb Chen-Yu Tsai:
>> Bluetooth is not a random device connected to the MMC/SD controller. It
>> is function 2 of the SDIO device.
>>
>> Fix the address of the bluetooth node. Also fix the node name and drop
>> the label.
> 
> Excuse my ignorance: Is this a cosmetic fix or does it fix the device somehow?
> 
>> Fixes: 055ef10ccdd4 ("arm64: dts: mt8183: Add jacuzzi pico/pico6 board")
>> Signed-off-by: Chen-Yu Tsai <wenst@...omium.org>
>> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
>> ---
>> Changes since v1:
>> - Collected reviewed-by
>>
>>   arch/arm64/boot/dts/mediatek/mt8183-kukui-jacuzzi-pico6.dts | 3 ++-
>>   1 file changed, 2 insertions(+), 1 deletion(-)
>>
>> diff --git a/arch/arm64/boot/dts/mediatek/mt8183-kukui-jacuzzi-pico6.dts 
>> b/arch/arm64/boot/dts/mediatek/mt8183-kukui-jacuzzi-pico6.dts
>> index a2e74b829320..6a7ae616512d 100644
>> --- a/arch/arm64/boot/dts/mediatek/mt8183-kukui-jacuzzi-pico6.dts
>> +++ b/arch/arm64/boot/dts/mediatek/mt8183-kukui-jacuzzi-pico6.dts
>> @@ -82,7 +82,8 @@ pins-clk {
>>   };
>>   &mmc1 {
>> -    bt_reset: bt-reset {
>> +    bluetooth@2 {
>> +        reg = <2>;
> 
> To avoid confusion, would it be possible to use sdio as a “name”.
> 

Names must be generic and descriptive; this is the Bluetooth part of the MT7921s
hence it's called "bluetooth". If its functionality was "sdio", it'd be as such,
but this is BT anyway.

"sdio@xxx" would be applicable to, for example, a controller that provides support
exclusively for SDIO (with no support for eMMC/SD).

Regards,
Angelo