linux-kernel - Re: [PATCH v7 1/6] usb: Add support for Intel LJCA device

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Date:   Sat, 25 Mar 2023 17:20:09 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Ye Xiang <xiang.ye@...el.com>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Matthias Kaehlcke <mka@...omium.org>,
        Lee Jones <lee@...nel.org>, Wolfram Sang <wsa@...nel.org>,
        Tyrone Ting <kfting@...oton.com>,
        Mark Brown <broonie@...nel.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <brgl@...ev.pl>, linux-usb@...r.kernel.org,
        linux-i2c@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-spi@...r.kernel.org, linux-gpio@...r.kernel.org,
        srinivas.pandruvada@...el.com, heikki.krogerus@...ux.intel.com,
        andriy.shevchenko@...ux.intel.com, sakari.ailus@...ux.intel.com,
        zhifeng.wang@...el.com, wentong.wu@...el.com, lixu.zhang@...el.com
Subject: Re: [PATCH v7 1/6] usb: Add support for Intel LJCA device

On Sat, Mar 25, 2023 at 11:47:06PM +0800, Ye Xiang wrote:
> This patch implements the USB part of Intel USB-I2C/GPIO/SPI adapter
> device named "La Jolla Cove Adapter" (LJCA).
> 
> The communication between the various LJCA module drivers and the
> hardware will be muxed/demuxed by this driver. Three modules (
> I2C, GPIO, and SPI) are supported currently.
> 
> Each sub-module of LJCA device is identified by type field within
> the LJCA message header.
> 
> The minimum code in ASL that covers this board is

As this requires ACPI, why are you not saying so in your Kconfig entry?
What good would this driver be without ACPI enabled?

thanks,

greg k-h