linux-kernel - Re: [PATCH] Input: goodix - decouple irq and reset lines

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Message-ID: <CAO00Eh6F4CMF_rPTWjFCon_87wSxA-vRm8DqSw=0sxSbpC_39w@mail.gmail.com>
Date:   Fri, 4 Jan 2019 23:31:29 +0100
From:   Andreas Gohr <andi@...itbrain.org>
To:     Alex Gonzalez <alex.gonzalez@...i.com>
Cc:     Bastien Nocera <hadess@...ess.net>, dmitry.torokhov@...il.com,
        linux-input@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Input: goodix - decouple irq and reset lines

> Designs that only provide the INT line are able to operate the touch on
> the default I2C address but will not be able to reset the touch via
> software or place the device in sleep mode.

This sounds exactly like the problem I'm having with the One-Mix Yoga
2 I described a few days ago.

I applied your patch on top of https://github.com/hadess/gt9xx, built
the goodix_backport module and loaded it successfully. The touchscreen
continued to work fine. Unfortunately, after a suspend and wakeup the
results are the same as without the patch - the touchscreen is
unresponsive. Unloading and loading the module again does not help. No
error messages whatsoever in dmesg.

Andreas