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Date: Wed, 27 Oct 2021 22:28:14 +1000 From: Alistair Francis <alistair23@...il.com> To: Andreas Kemnade <andreas@...nade.info> Cc: Linus Walleij <linus.walleij@...aro.org>, Alistair Francis <alistair@...stair23.me>, Linux ARM <linux-arm-kernel@...ts.infradead.org>, "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" <devicetree@...r.kernel.org>, linux-kernel <linux-kernel@...r.kernel.org>, Linux Input <linux-input@...r.kernel.org>, Dmitry Torokhov <dmitry.torokhov@...il.com>, Rob Herring <robh+dt@...nel.org>, Henrik Rydberg <rydberg@...math.org>, Mylene Josserand <mylene.josserand@...e-electrons.com> Subject: Re: [PATCH 2/4] Documentation: DT: bindings: input: Add documentation for cyttsp5 On Tue, Oct 26, 2021 at 5:16 PM Andreas Kemnade <andreas@...nade.info> wrote: > > On Tue, 26 Oct 2021 01:18:24 +0200 > Linus Walleij <linus.walleij@...aro.org> wrote: > > > Hi Alistair, > > > > On Mon, Oct 25, 2021 at 1:42 PM Alistair Francis <alistair@...stair23.me> wrote: > > > > > From: Mylène Josserand <mylene.josserand@...e-electrons.com> > > > > > > Add the Cypress TrueTouch Generation 5 touchscreen device tree bindings > > > documentation. It can use I2C or SPI bus. > > > This touchscreen can handle some defined zone that are designed and > > > sent as button. To be able to customize the keycode sent, the > > > "linux,code" property in a "button" sub-node can be used. > > > > > > Signed-off-by: Mylène Josserand <mylene.josserand@...e-electrons.com> > > > Message-Id: <20170529144538.29187-3-mylene.josserand@...e-electrons.com> > > > Signed-off-by: Alistair Francis <alistair@...stair23.me> > > > > > +title: Cypress cyttsp touchscreen controller, generation 5 > > (...) > > > + compatible: > > > + const: cypress,cyttsp5 > > > > Is this the real product name? When I rewrote the bindings for > > the original "CYTTSP", actually "Cypress TrueTouch Standard Product" > > it came out that the actual product names were CY8CTMA340 > > and CY8CTMA341. "CYTTSP" was a marketing name for the > > whole family. > > > > See > > Documentation/devicetree/bindings/input/touchscreen/cypress,cy8ctma340.yaml > > > > If the actual products have some product names such as > > CY8* then use these as compatibles instead and just write in the > > decription that it is Cypress TrueTouch Standard Product series 5. > > > Since I have uptreamed 4 devicetrees containing that touchscreen (and > marked that as todo). I tried to look it up: > https://fccid.io/NOIKBN249/Internal-Photos/Internal-Photos-3802584.pdf > > Page 4 might be interesting. Something below that 3d code (zbarimg does > not recognize it) Peeling up the label reveals: > TT21000 > -44LQI > 1802 TWN > 6491U0 (two illegible characters) > > You find it in the net: > https://www.digipart.com/part/TT21000-48LQI36T Thanks! So I'll change the name to cypress,tt21000 Alistair > > Regards, > Andreas >
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