netdev - Re: [PATCH v1 13/14] dt-bindings: input/touchscreen: Convert MELFAS MIP4 Touchscreen to YAML

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <CACRpkdZRHQ6vuchN8x8d0uPCVMPPHOdBVWiUhzFJNs2paHGbYw@mail.gmail.com>
Date: Fri, 5 Sep 2025 13:33:09 +0200
From: Linus Walleij <linus.walleij@...aro.org>
To: Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc: "Ariel D'Alessandro" <ariel.dalessandro@...labora.com>, airlied@...il.com, 
	amergnat@...libre.com, andrew+netdev@...n.ch, andrew-ct.chen@...iatek.com, 
	angelogioacchino.delregno@...labora.com, broonie@...nel.org, 
	chunkuang.hu@...nel.org, ck.hu@...iatek.com, conor+dt@...nel.org, 
	davem@...emloft.net, edumazet@...gle.com, flora.fu@...iatek.com, 
	houlong.wei@...iatek.com, jeesw@...fas.com, jmassot@...labora.com, 
	kernel@...labora.com, krzk+dt@...nel.org, kuba@...nel.org, 
	kyrie.wu@...iatek.corp-partner.google.com, lgirdwood@...il.com, 
	louisalexis.eyraud@...labora.com, maarten.lankhorst@...ux.intel.com, 
	matthias.bgg@...il.com, mchehab@...nel.org, minghsiu.tsai@...iatek.com, 
	mripard@...nel.org, p.zabel@...gutronix.de, pabeni@...hat.com, 
	robh@...nel.org, sean.wang@...nel.org, simona@...ll.ch, 
	support.opensource@...semi.com, tiffany.lin@...iatek.com, tzimmermann@...e.de, 
	yunfei.dong@...iatek.com, devicetree@...r.kernel.org, 
	dri-devel@...ts.freedesktop.org, linux-arm-kernel@...ts.infradead.org, 
	linux-clk@...r.kernel.org, linux-gpio@...r.kernel.org, 
	linux-input@...r.kernel.org, linux-kernel@...r.kernel.org, 
	linux-media@...r.kernel.org, linux-mediatek@...ts.infradead.org, 
	linux-sound@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH v1 13/14] dt-bindings: input/touchscreen: Convert MELFAS
 MIP4 Touchscreen to YAML

On Fri, Sep 5, 2025 at 12:02 PM Dmitry Torokhov
<dmitry.torokhov@...il.com> wrote:
> On Thu, Aug 21, 2025 at 01:56:24PM +0200, Linus Walleij wrote:
> > Hi Ariel,
> >
> > thanks for your patch!
> >
> > On Wed, Aug 20, 2025 at 7:17 PM Ariel D'Alessandro
> > <ariel.dalessandro@...labora.com> wrote:
> >
> > > +  ce-gpios:
> > > +    description: GPIO connected to the CE (chip enable) pin of the chip
> > > +    maxItems: 1
> >
> > Mention that this should always have the flag GPIO_ACTIVE_HIGH
> > as this is required by the hardware.
> >
> > Unfortunately we have no YAML syntax for enforcing flags :/
>
> Theoretically there can be an inverter on the line, so from the AP point
> of view the line is active low while from the peripheral POV the pin is
> active high...

Yes, I think someone even proposed adding inverters to the
device tree and was nixed.

It's a matter of phrasing I would say:

"Mention that this should nominally have the flag GPIO_ACTIVE_HIGH
as this is required by the hardware."

s/always/nominally/g

Yours,
Linus Walleij