linux-kernel - Re: [PATCH v3] Bluetooth: btusb: re-definition for board_id in struct qca

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Message-Id: <1593EED1-5745-49D1-B17A-F4C553F28644@holtmann.org>
Date:   Mon, 15 Nov 2021 18:30:27 +0100
From:   Marcel Holtmann <marcel@...tmann.org>
To:     tjiang@...eaurora.org
Cc:     Johan Hedberg <johan.hedberg@...il.com>,
        Luiz Augusto von Dentz <luiz.dentz@...il.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-bluetooth <linux-bluetooth@...r.kernel.org>,
        MSM <linux-arm-msm@...r.kernel.org>,
        Balakrishna Godavarthi <bgodavar@...eaurora.org>,
        c-hbandi@...eaurora.org, Hemantg <hemantg@...eaurora.org>,
        Matthias Kaehlcke <mka@...omium.org>,
        Rocky Liao <rjliao@...eaurora.org>, zijuhu@...eaurora.org
Subject: Re: [PATCH v3] Bluetooth: btusb: re-definition for board_id in struct
 qca_version

Hi Tim,

>  the following is the explanation from qc btsoc team:
> 
> The board ID should be split into two bytes.
> The 1st byte is chip ID, and the 2nd byte is platform ID.
> For example, board ID 0x010A, 0x01 is platform ID. 0x0A is chip ID.
> Currently we have several platforms, and platform IDs are continuously added.
> We would not distinguish different chips if we get these mixed up.
> Platform ID:
> •             0x00 is for Mobile
> •             0x01 is for X86( ID # from 257)
> •             0x02 is for Automotive(ID# from 513 )
> •             0x03 is for Consumer electronic( ID# from 769)
> …

then use u8 chip_id and u8 platform_id in the data structure and add description like above when you combine chip_id and platform_id into board_id.

Regards

Marcel