linux-kernel - Re: [PATCH v10 2/2] Input: Add Novatek NT36xxx touchscreen driver

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Date:   Tue, 15 Aug 2023 20:09:10 -0500
From:   Joel Selvaraj <joelselvaraj.oss@...il.com>
To:     Konrad Dybcio <konrad.dybcio@...aro.org>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Henrik Rydberg <rydberg@...math.org>
Cc:     Marijn Suijten <marijn.suijten@...ainline.org>,
        linux-input@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, Dang Huynh <danct12@...eup.net>,
        Amit Pundir <amit.pundir@...aro.org>
Subject: Re: [PATCH v10 2/2] Input: Add Novatek NT36xxx touchscreen driver

Hi Konrad Dybcio,

On 8/8/23 18:38, Konrad Dybcio wrote:
> From: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
> 
> This is a driver for the Novatek in-cell touch controller and
> supports various chips from the NT36xxx family, currently
> including NT36525, NT36672A, NT36676F, NT36772 and NT36870.

In kernel v6.4, a basic novatek touchscreen driver was introduced [1].
I was able to tweak IT a bit (add devicetree compatible, regulator 
support, remove chip id hardcode) and get it properly working in my 
Xiaomi Poco F1 which has Novatek NT36672A touchscreen. Probably the 
other ICs will also work. So, do we really need a separate touchscreen 
driver? Maybe the existing one can be improved to add more features if 
needed?

Personally I have been looking forward to the v10 of this patchseries :) 
Thanks for working on this! But, yeah, we need to decide if we need this 
to be a separate driver.

Link: 
https://lore.kernel.org/all/20230326212308.55730-1-hdegoede@redhat.com/

Regards
Joel Selvaraj