linux-kernel - Re: [PATCH v4 2/5] usb: assign ACPI companions for embedded USB devices

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Date:   Tue, 22 Jan 2019 14:29:40 -0800
From:   Rajat Jain <rajatja@...gle.com>
To:     Marcel Holtmann <marcel@...tmann.org>
Cc:     Johan Hedberg <johan.hedberg@...il.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "David S. Miller" <davem@...emloft.net>,
        Dmitry Torokhov <dtor@...omium.org>,
        Alex Hung <alex.hung@...onical.com>,
        linux-bluetooth@...r.kernel.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-usb@...r.kernel.org, netdev@...r.kernel.org,
        Rajat Jain <rajatxjain@...il.com>,
        Dmitry Torokhov <dtor@...gle.com>, raghuram.hegde@...el.com,
        chethan.tumkur.narayan@...el.com,
        "Ghorai, Sukumar" <sukumar.ghorai@...el.com>
Subject: Re: [PATCH v4 2/5] usb: assign ACPI companions for embedded USB devices

On Sat, Jan 19, 2019 at 11:51 AM Marcel Holtmann <marcel@...tmann.org> wrote:
>
> Hi Rajat,
>
> > 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/other-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>
> > ---
> > v4: Add Acked-by and Tested-by in signatures.
> > v3: same as v1
> > v2: same as v1
> >
> > drivers/usb/core/usb-acpi.c | 44 +++++++++++++++++++++++++++++--------
> > 1 file changed, 35 insertions(+), 9 deletions(-)
>
> same question here. Which tree is suppose to take this?

Just responded to the 1st patch. Since the subsequent patches use this
feature, may be best to push this via your tree. Greg or Dmitry can
suggest if they have any other suggestions.

>
> Regards
>
> Marcel
>