linux-kernel - RE: [PATCH v2 2/4] drivers: firmware: xilinx: Add ZynqMP firmware driver

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Date:   Wed, 24 Jan 2018 23:28:12 +0000
From:   Jolly Shah <JOLLYS@...inx.com>
To:     Greg KH <gregkh@...uxfoundation.org>
CC:     "ard.biesheuvel@...aro.org" <ard.biesheuvel@...aro.org>,
        "mingo@...nel.org" <mingo@...nel.org>,
        "matt@...eblueprint.co.uk" <matt@...eblueprint.co.uk>,
        "sudeep.holla@....com" <sudeep.holla@....com>,
        "hkallweit1@...il.com" <hkallweit1@...il.com>,
        "keescook@...omium.org" <keescook@...omium.org>,
        "dmitry.torokhov@...il.com" <dmitry.torokhov@...il.com>,
        "michal.simek@...inx.com" <michal.simek@...inx.com>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "mark.rutland@....com" <mark.rutland@....com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        Rajan Vaja <RAJANV@...inx.com>
Subject: RE: [PATCH v2 2/4] drivers: firmware: xilinx: Add ZynqMP firmware
 driver

Thanks for review Greg,

> -----Original Message-----
> From: Greg KH [mailto:gregkh@...uxfoundation.org]
> Sent: Tuesday, January 23, 2018 12:38 AM
> To: Jolly Shah <JOLLYS@...inx.com>
> Cc: ard.biesheuvel@...aro.org; mingo@...nel.org; matt@...eblueprint.co.uk;
> sudeep.holla@....com; hkallweit1@...il.com; keescook@...omium.org;
> dmitry.torokhov@...il.com; michal.simek@...inx.com; robh+dt@...nel.org;
> mark.rutland@....com; linux-arm-kernel@...ts.infradead.org; linux-
> kernel@...r.kernel.org; devicetree@...r.kernel.org; Rajan Vaja
> <RAJANV@...inx.com>; Jolly Shah <JOLLYS@...inx.com>
> Subject: Re: [PATCH v2 2/4] drivers: firmware: xilinx: Add ZynqMP firmware
> driver
> 
> On Wed, Jan 17, 2018 at 12:20:32PM -0800, Jolly Shah wrote:
> > This patch is adding communication layer with firmware.
> > Firmware driver provides an interface to firmware APIs.
> > Interface APIs can be used by any driver to communicate to
> > PMUFW(Platform Management Unit). All requests go through ATF.
> >
> > Signed-off-by: Jolly Shah <jollys@...inx.com>
> > Signed-off-by: Rajan Vaja <rajanv@...inx.com>
> > ---
> >  arch/arm64/Kconfig.platforms                    |   1 +
> >  drivers/firmware/Kconfig                        |   1 +
> >  drivers/firmware/Makefile                       |   1 +
> >  drivers/firmware/xilinx/Kconfig                 |   4 +
> >  drivers/firmware/xilinx/Makefile                |   4 +
> >  drivers/firmware/xilinx/zynqmp/Kconfig          |  16 +
> >  drivers/firmware/xilinx/zynqmp/Makefile         |   4 +
> >  drivers/firmware/xilinx/zynqmp/firmware.c       | 987
> ++++++++++++++++++++++++
> >  include/linux/firmware/xilinx/zynqmp/firmware.h | 570 ++++++++++++++
> 
> Why does this file need to be in include/linux/ at all?  Shouldn't it just live in the
> driver-specific subdir?
> 
> thanks,
> 
> greg k-h

It is used by multiple drivers so can not live in driver specific subdir.

Thanks,
Jolly Shah