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Date: Fri, 5 Apr 2024 18:28:32 +0200
From: Andreas Kemnade <andreas@kemnade.info>
To: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: dmitry.torokhov@gmail.com, robh+dt@kernel.org,
 krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org,
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 hdegoede@redhat.com, ye.xingchen@zte.com.cn, p.puschmann@pironex.com,
 linux-input@vger.kernel.org, devicetree@vger.kernel.org,
 linux-kernel@vger.kernel.org, caleb.connolly@linaro.org
Subject: Re: [PATCH v2 2/2] Input: edt-ft5x06 - add ft5426
Message-ID: <20240405182832.4e457695@aktux>
In-Reply-To: <CAHp75VeZ9U_+1rJQjr4KvvzjYQGzfKtk+BK00vqvKcVn2-yP3g@mail.gmail.com>
References: <20240404222009.670685-1-andreas@kemnade.info>
	<20240404222009.670685-3-andreas@kemnade.info>
	<CAHp75VeZ9U_+1rJQjr4KvvzjYQGzfKtk+BK00vqvKcVn2-yP3g@mail.gmail.com>
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On Fri, 5 Apr 2024 18:13:45 +0300
Andy Shevchenko <andy.shevchenko@gmail.com> wrote:

> On Fri, Apr 5, 2024 at 1:20=E2=80=AFAM Andreas Kemnade <andreas@kemnade.i=
nfo> wrote:
> >
> > As ft5426 seems to be compatible with this driver, add it.
> > Debug output during identification: Model "generic ft5x06 (79)", Rev. "=
 =20
>=20
> ...
>=20
> > @@ -1484,6 +1484,7 @@ static const struct of_device_id edt_ft5x06_of_ma=
tch[] =3D {
> >         { .compatible =3D "edt,edt-ft5206", .data =3D &edt_ft5x06_data =
},
> >         { .compatible =3D "edt,edt-ft5306", .data =3D &edt_ft5x06_data =
},
> >         { .compatible =3D "edt,edt-ft5406", .data =3D &edt_ft5x06_data =
},
> > +       { .compatible =3D "focaltech,ft5426", .data =3D &edt_ft5506_dat=
a }, =20
>=20
> Why a different vendor prefix?
> In case you need to use this one, keep the list sorted, currently this
> splits the edt,* ones.
>=20
How do I know whether to use evervision or edt instead?=20
I sorted by the numbers. Looking at datasheets for other controllers I see
https://www.displayfuture.com/Display/datasheet/controller/FT5x06.pdf
it only mentions FocalTech Systems Co., Ltd.
So how the vendor prefixes are derived?

Regards,
Andreas