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From: Felipe Balbi <balbi@ti.com>
To: Michael Welling <mwelling@ieee.org>,
	"Franklin Cooper Jr." <fcooper@ti.com>
Cc: <dmitry.torokhov@gmail.com>, <vigneshr@ti.com>, <bgriffis@ti.com>,
	<jic23@kernel.org>, <wsa@the-dreams.de>, <balbi@ti.com>,
	<linux-input@vger.kernel.org>, <GWilson@sakuraus.com>,
	<linux-iio@vger.kernel.org>
Subject: Re: AM335x touchscreen issues
Date: Tue, 26 May 2015 13:37:13 -0500	[thread overview]
Message-ID: <20150526183713.GU26599@saruman.tx.rr.com> (raw)
In-Reply-To: <20150526181157.GA8009@deathray>

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Hi,

On Tue, May 26, 2015 at 01:11:57PM -0500, Michael Welling wrote:
> Greetings,
> 
> I have been porting Linux to a new AM3554 based SoM and have found issues
> with the touchscreen reporting touch releases repeatedly to userspace
> without actually touching the screen when running ts_calibrate, ts_test
> or other graphical touchscreen applications.
> 
> This started happening after updating pulling recent changes.

Can you bisect and find the offending commit ? Which recent changes are
you talking about ?

> It has also been confirmed to be happening on the beagle bone black:
> http://www.spinics.net/lists/linux-iio/msg18580.html
> 
> If you look further into this thread you will see a workaround patch that
> I came up with:
> http://www.spinics.net/lists/linux-iio/msg18583.html
> 
> Though this fix stops the reported events in userspace, interrupts are
> still occuring repeatedly.
> 
> Does anyone have any suggestions beyond what I have done to remedy this
> issue?

yeah, it sounds similar to what Franklin has been working on.

Franklin, any comments ?

-- 
balbi

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  reply	other threads:[~2015-05-26 18:37 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-05-26 18:11 AM335x touchscreen issues Michael Welling
2015-05-26 18:37 ` Felipe Balbi [this message]
2015-05-26 20:53   ` Michael Welling
2015-05-26 21:15     ` Cooper Jr., Franklin
2015-05-26 21:28       ` Michael Welling
2015-05-26 21:34         ` Cooper Jr., Franklin
2015-05-26 21:36           ` Griffis, Brad
2015-05-26 21:50             ` Michael Welling
2015-05-26 22:25               ` Griffis, Brad
2015-05-26 22:46                 ` Michael Welling
2015-05-26 22:31               ` Cooper Jr., Franklin
2015-05-26 23:06                 ` Michael Welling
2015-05-26 23:37                   ` Cooper Jr., Franklin
2015-05-27  4:06                   ` Vignesh R
2015-05-27 17:29                     ` Michael Welling
2015-05-26 21:41           ` Michael Welling

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