linux-kernel - RE: [PATCH v8 03/10] firmware: xilinx: Add zynqmp IOCTL API for device control

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Date:   Fri, 15 Jun 2018 16:45:43 +0000
From:   Jolly Shah <JOLLYS@...inx.com>
To:     Randy Dunlap <rdunlap@...radead.org>,
        "ard.biesheuvel@...aro.org" <ard.biesheuvel@...aro.org>,
        "mingo@...nel.org" <mingo@...nel.org>,
        "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.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>,
        "mturquette@...libre.com" <mturquette@...libre.com>,
        "sboyd@...eaurora.org" <sboyd@...eaurora.org>,
        Michal Simek <michals@...inx.com>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "mark.rutland@....com" <mark.rutland@....com>,
        "linux-clk@...r.kernel.org" <linux-clk@...r.kernel.org>
CC:     Rajan Vaja <RAJANV@...inx.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>
Subject: RE: [PATCH v8 03/10] firmware: xilinx: Add zynqmp IOCTL API for
 device control

Hi Randy,

> -----Original Message-----
> From: Randy Dunlap [mailto:rdunlap@...radead.org]
> Sent: Thursday, June 14, 2018 1:45 PM
> To: Jolly Shah <JOLLYS@...inx.com>; ard.biesheuvel@...aro.org;
> mingo@...nel.org; gregkh@...uxfoundation.org; matt@...eblueprint.co.uk;
> sudeep.holla@....com; hkallweit1@...il.com; keescook@...omium.org;
> dmitry.torokhov@...il.com; mturquette@...libre.com;
> sboyd@...eaurora.org; michal.simek@...inx.com; robh+dt@...nel.org;
> mark.rutland@....com; linux-clk@...r.kernel.org
> Cc: Rajan Vaja <RAJANV@...inx.com>; linux-arm-kernel@...ts.infradead.org;
> linux-kernel@...r.kernel.org; devicetree@...r.kernel.org; Jolly Shah
> <JOLLYS@...inx.com>
> Subject: Re: [PATCH v8 03/10] firmware: xilinx: Add zynqmp IOCTL API for device
> control
> 
> On 06/14/2018 11:27 AM, Jolly Shah wrote:
> > From: Rajan Vaja <rajanv@...inx.com>
> >
> > Add ZynqMP firmware IOCTL API to control and configure devices like
> > PLLs, SD, Gem, etc.
> >
> > Signed-off-by: Rajan Vaja <rajanv@...inx.com>
> > Signed-off-by: Jolly Shah <jollys@...inx.com>
> > ---
> >  drivers/firmware/xilinx/zynqmp.c     | 20 ++++++++++++++++++++
> >  include/linux/firmware/xlnx-zynqmp.h |  2 ++
> >  2 files changed, 22 insertions(+)
> 
> Hi,
> 
> Does this driver claim (implement) some specific ioctl code or ID?
> 
> If so, its ioctl numbers should be documented in Documentation/ioctl/ioctl-
> number.txt.
> 

This is not system IOCTL. This is parameter to ZynqMP specific API.

Thanks,
Jolly Shah

> thanks,
> --
> ~Randy