linux-kernel - Re: [PATCH v2 1/4] omapdrm: fix compatible string for td028ttec1

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Message-Id: <130D3B71-C0CE-4755-BF06-971681F630BC@goldelico.com>
Date:   Thu, 16 Nov 2017 14:43:52 +0100
From:   "H. Nikolaus Schaller" <hns@...delico.com>
To:     Tomi Valkeinen <tomi.valkeinen@...com>
Cc:     Thierry Reding <thierry.reding@...il.com>,
        David Airlie <airlied@...ux.ie>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Benoît Cousson <bcousson@...libre.com>,
        Tony Lindgren <tony@...mide.com>,
        Russell King <linux@...linux.org.uk>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Julia Lawall <Julia.Lawall@...6.fr>,
        Sean Paul <seanpaul@...omium.org>,
        dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-omap@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-fbdev@...r.kernel.org,
        letux-kernel@...nphoenux.org, kernel@...a-handheld.com
Subject: Re: [PATCH v2 1/4] omapdrm: fix compatible string for td028ttec1


> Am 16.11.2017 um 13:32 schrieb Tomi Valkeinen <tomi.valkeinen@...com>:
> 
> On 16/11/17 10:50, H. Nikolaus Schaller wrote:
>> The vendor name was "toppoly" but other panels and the vendor list
>> have defined it as "tpo". So let's fix it in driver and bindings.
>> 
>> Signed-off-by: H. Nikolaus Schaller <hns@...delico.com>
>> ---
> 
> 
>> -MODULE_ALIAS("spi:toppoly,td028ttec1");
>> +MODULE_ALIAS("spi:tpo,td028ttec1");
> 
> Doesn't this mean that the module won't load if you have old bindings?

Hm.

Well, I think it can load but doesn't automatically from DT strings which might
be unexpected.

> Can't we have two module aliases?

I think we can. Just a random example:
https://elixir.free-electrons.com/linux/latest/source/drivers/w1/slaves/w1_therm.c#L754

So we should keep both.

Should I submit a new version?

BR,
Nikolaus