linux-kernel - Re: [RFC PATCH v3 9/9] ipu3-cio2: Add functionality allowing software_node connections to sensors on platforms designed for Windows

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Message-ID: <CAHp75VfhxL2iyp_sNwmDyCG6-6bE5QZYd3Ubp=egZhTCcB=jgg@mail.gmail.com>
Date:   Thu, 22 Oct 2020 16:40:25 +0300
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Daniel Scally <djrscally@...il.com>
Cc:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Media Mailing List <linux-media@...r.kernel.org>,
        linux.walleij@...aro.org, prabhakar.mahadev-lad.rj@...renesas.com,
        "Krogerus, Heikki" <heikki.krogerus@...ux.intel.com>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        laurent.pinchart+renesas@...asonboard.com,
        kieran.bingham+renesas@...asonboard.com,
        Jacopo Mondi <jacopo+renesas@...ndi.org>,
        Rob Herring <robh@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Rasmus Villemoes <linux@...musvillemoes.dk>,
        Sergey Senozhatsky <sergey.senozhatsky@...il.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Petr Mladek <pmladek@...e.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Tian Shu Qiu <tian.shu.qiu@...el.com>,
        Bingbu Cao <bingbu.cao@...el.com>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Yong Zhi <yong.zhi@...el.com>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Tsuchiya Yuto <kitakar@...il.com>, dan.carpenter@...cle.org
Subject: Re: [RFC PATCH v3 9/9] ipu3-cio2: Add functionality allowing
 software_node connections to sensors on platforms designed for Windows

On Thu, Oct 22, 2020 at 3:59 PM Daniel Scally <djrscally@...il.com> wrote:
> On 20/10/2020 10:41, Andy Shevchenko wrote:

...

> >> +static const char * const port_names[] = {
> >> +    "port0", "port1", "port2", "port3"
> > + comma.
> I think 4 ports is the maximum for CIO2 device, so this shouldn't ever
> get extended?

It's better for at least teaching purposes (if anybody takes this
driver as an example for anything) if you have really believe that no
new generation will have more than that.

...

> >> +    if (is_software_node(dev_fwnode(&pci_dev->dev)))
> > Can we use the same check as for _build call above?
>
> And just set a flag in struct cio2? sure.

I meant can we use exact conditional w/o any additional flags added?

-- 
With Best Regards,
Andy Shevchenko