linux-kernel - RE: [PATCH v3 2/5] usb: assign ACPI companions for embedded USB devices

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Date:   Wed, 5 Dec 2018 17:19:16 +0000
From:   "Ghorai, Sukumar" <sukumar.ghorai@...el.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Rajat Jain <rajatja@...gle.com>
CC:     Marcel Holtmann <marcel@...tmann.org>,
        Johan Hedberg <johan.hedberg@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        "Dmitry Torokhov" <dtor@...omium.org>,
        Alex Hung <alex.hung@...onical.com>,
        "linux-bluetooth@...r.kernel.org" <linux-bluetooth@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "rajatxjain@...il.com" <rajatxjain@...il.com>,
        "dtor@...gle.com" <dtor@...gle.com>,
        "Hegde, Raghuram" <raghuram.hegde@...el.com>,
        "Tumkur Narayan, Chethan" <chethan.tumkur.narayan@...el.com>
Subject: RE: [PATCH v3 2/5] usb: assign ACPI companions for embedded USB
 devices

>On Wed, Nov 21, 2018 at 03:50:17PM -0800, Rajat Jain wrote:
>> From: Dmitry Torokhov <dtor@...omium.org>
>>
>> USB devices permanently connected to USB ports may be described in
>> ACPI tables and share ACPI devices with ports they are connected to.
>> See [1] for details.
>>
>> This will allow us to describe sideband resources for devices, such
>> as, for example, hard reset line for BT USB controllers.
>>
>> [1]
>> https://docs.microsoft.com/en-us/windows-hardware/drivers/bringup/othe
>> r-acpi-namespace-objects#acpi-namespace-hierarchy-and-adr-for-
>embedded
>> -usb-devices
>>
>> Signed-off-by: Dmitry Torokhov <dtor@...omium.org>
>> Signed-off-by: Rajat Jain <rajatja@...gle.com> (changed how we get the
>> usb_port)
>
>Acked-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

Tested-by: Sukumar Ghorai <sukumar.ghorai@...el.com>