linux-kernel - Re: [PATCH v5 0/4] SFH: Add Support for AMD Sensor Fusion Hub

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Message-ID: <20200728145833.xc53dpvwu7deqzjw@pengutronix.de>
Date:   Tue, 28 Jul 2020 16:58:33 +0200
From:   Marco Felsch <m.felsch@...gutronix.de>
To:     Andy Shevchenko <andy.shevchenko@...il.com>
Cc:     Sandeep Singh <Sandeep.Singh@....com>,
        Jiri Kosina <jikos@...nel.org>,
        Benjamin Tissoires <benjamin.tissoires@...hat.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-input <linux-input@...r.kernel.org>,
        Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
        Jonathan Cameron <jic23@...nel.org>,
        linux-iio <linux-iio@...r.kernel.org>,
        Hans de Goede <hdegoede@...hat.com>,
        "Shah, Nehal-bakulchandra" <Nehal-bakulchandra.Shah@....com>,
        Richard Neumann <mail@...hard-neumann.de>,
        Shyam-sundar.S-k@....com
Subject: Re: [PATCH v5 0/4] SFH: Add Support for AMD Sensor Fusion Hub

Hi,

On 20-05-29 17:21, Andy Shevchenko wrote:
> On Fri, May 29, 2020 at 4:42 PM Sandeep Singh <Sandeep.Singh@....com> wrote:
> >
> > From: Sandeep Singh <sandeep.singh@....com>
> >
> > AMD SFH(Sensor Fusion Hub) is HID based driver.SFH FW
> > is part of MP2 processor (MP2 which is an ARM® Cortex-M4
> > core based co-processor to x86) and it runs on MP2 where
> > in driver resides on X86.The driver functionalities are
> > divided  into three parts:-
> >
> > 1: amd-mp2-pcie:-       This module will communicate with MP2 FW and
> >                         provide that data into DRAM.
> > 2: Client driver :-     This part for driver will use dram data and
> >                         convert that data into HID format based on
> >                         HID reports.
> > 3: Transport driver :-  This part of driver will communicate with
> >                         HID core. Communication between devices and
> >                         HID core is mostly done via HID reports
> >
> > In terms of architecture it is much more reassembles like
> > ISH(Intel Integrated Sensor Hub). However the major difference
> > is all the hid reports are generated as part of kernel driver.
> > AMD SFH driver taken reference from ISH in terms of
> > design and functionalities at fewer location.
> >
> > AMD sensor fusion Hub is part of a SOC 17h family based platforms.
> > The solution is working well on several OEM products.
> > AMD SFH uses HID over PCIe bus.
> >
> 
> I can't believe this is fifth version.
> Guys, you have to do much more work on these drivers.

Is there any active development addressing Andy's comments? Else can we
support you to bring these patches mainline?

Regards,
  Marco