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Subject: Re: [Regression]: Commit 74d905d2 breaks the touchpad and touchscreen
 of Google Chromebook "samus"
To:     Andre <andre.muller@web.de>, Nick Dyer <nick.dyer@itdev.co.uk>
CC:     Dmitry Torokhov <dmitry.torokhov@gmail.com>,
        "George G. Davis" <george_davis@mentor.com>,
        <linux-kernel@vger.kernel.org>
References: <735253bd-5500-2b8d-c98d-99bddb0617ce@web.de>
From:   "Wang, Jiada" <jiada_wang@mentor.com>
Message-ID: <beae40be-4e84-ceea-ee00-351b18b26e06@mentor.com>
Date:   Thu, 5 Nov 2020 22:25:59 +0900
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Hi Andre

Thanks for your report,
could you also please post the log when with this commit reverted?

Thanks,
Jiada

On 2020/11/04 17:13, Andre wrote:
> Hi,
> 
> commit 74d905d2: Input: atmel_mxt_ts - only read messages in
> mxt_acquire_irq() when necessary
> 
> breaks the touchpad and touchscreen of the 2015 Chromebook Pixel "Samus".
> 
> Reverting the commit from the current git tree gets them to work again.
> 
> I am not at all shure what info to include, but I will happily provide
> it on request.
> 
> The dmesgs of a boot with commit 74d905d2 show "Enabling RETRIGEN
> workaround", but otherwise looks the same as a boot without.
> 
> Here is the relevant bit (with 74d905d2):
> 
> atmel_mxt_ts i2c-ATML0000:01: Family: 164 Variant: 17 Firmware V1.0.AA
> Objects: 32
> atmel_mxt_ts i2c-ATML0000:01: Enabling RETRIGEN workaround
> atmel_mxt_ts i2c-ATML0000:01: Direct firmware load for maxtouch.cfg
> failed with error -2
> atmel_mxt_ts i2c-ATML0000:01: Touchscreen size X960Y540
> input: Atmel maXTouch Touchpad as
> /devices/pci0000:00/INT3432:00/i2c-0/i2c-ATML0000:01/input/input4
> atmel_mxt_ts i2c-ATML0001:01: Family: 164 Variant: 13 Firmware V1.0.AA
> Objects: 41
> atmel_mxt_ts i2c-ATML0001:01: Enabling RETRIGEN workaround
> atmel_mxt_ts i2c-ATML0001:01: Direct firmware load for maxtouch.cfg
> failed with error -2
> 
> Thank you,
> Andre M?ller