linux-kernel - Re: [PATCH 1/2] dt-bindings: net: broadcom-bluetooth: Add property for autobaud mode

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Message-ID: <CACRpkdY3xPcyNcJfdGbSP5rdcUV6hr87yJNDVDGZdRCfN+MqLA@mail.gmail.com>
Date:   Thu, 5 May 2022 00:15:39 +0200
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Hakan Jansson <hakan.jansson@...ineon.com>
Cc:     "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        netdev@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Marcel Holtmann <marcel@...tmann.org>,
        Johan Hedberg <johan.hedberg@...il.com>,
        Luiz Augusto von Dentz <luiz.dentz@...il.com>,
        linux-bluetooth@...r.kernel.org
Subject: Re: [PATCH 1/2] dt-bindings: net: broadcom-bluetooth: Add property
 for autobaud mode

On Wed, May 4, 2022 at 11:04 AM Hakan Jansson
<hakan.jansson@...ineon.com> wrote:

> +  brcm,uses-autobaud-mode:
> +    type: boolean
> +    description: >
> +      The controller should be started in autobaud mode by asserting
> +      BT_UART_CTS_N (i.e. host RTS) during startup. Only HCI commands supported
> +      in autobaud mode should be used until patch FW has been loaded.

Things like gnss uses the current-speed attribute to set a serial link speed,
maybe also Bluetooth?

Would it make sense to use

current-speed-auto;

As a flag for these things in general?

Yours,
Linus Walleij