From: Richard Cochran <richardcochran@gmail.com>
To: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Sekhar Nori <nsekhar@ti.com>,
Dmitry Torokhov <dmitry.torokhov@gmail.com>,
Lee Jones <lee.jones@linaro.org>, Vignesh R <vigneshr@ti.com>,
Rob Herring <robh+dt@kernel.org>, Pawel Moll <pawel.moll@arm.com>,
Mark Rutland <mark.rutland@arm.com>,
Ian Campbell <ijc+devicetree@hellion.org.uk>,
Kumar Gala <galak@codeaurora.org>,
Benoit Cousson <bcousson@baylibre.com>,
Tony Lindgren <tony@atomide.com>,
Russell King <linux@arm.linux.org.uk>,
Jonathan Cameron <jic23@kernel.org>,
Hartmut Knaack <knaack.h@gmx.de>,
Lars-Peter Clausen <lars@metafoo.de>,
Peter Meerwald <pmeerw@pmeerw.net>,
Samuel Ortiz <sameo@linux.intel.com>, Felipe Balbi <balbi@ti.com>,
Brad Griffis <bgriffis@ti.com>,
Sanjeev Sharma <sanjeev_sharma@mentor.com>,
Paul Gortmaker <paul.gortmaker@windriver.com>,
Jan Kardell <jan.kardell@telliq.com>,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-om
Subject: Re: [PATCH v4 3/6] mfd: ti_am335x_tscadc: Remove unwanted reg_se_cache save
Date: Mon, 24 Nov 2014 11:01:49 +0100 [thread overview]
Message-ID: <20141124100149.GA5124@localhost.localdomain> (raw)
In-Reply-To: <5472F30A.1000608@linutronix.de>
On Mon, Nov 24, 2014 at 09:57:46AM +0100, Sebastian Andrzej Siewior wrote:
> On 11/21/2014 02:10 PM, Richard Cochran wrote:
>
> > On the BB white using the LCD4 cape and the shipped debian kernel, the
> > cursor *does* jump away, but not as often or as far as on the custom
> > design I was working with.
>
> This sounds like the ADC is still sampling while the input data becomes
> invalid. Usually there is a resistor on the wiper line and the
> touchscreen manual says how much it should be at least. Could you
> please check if this is properly installed?
Wiper line? This is a four wire device.
Thanks,
Richard
next prev parent reply other threads:[~2014-11-24 10:01 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-14 5:07 [PATCH v4 0/6] Touchscreen performance related fixes Vignesh R
2014-11-14 5:07 ` [PATCH v4 1/6] input: touchscreen: ti_am335x_tsc Interchange touchscreen and ADC steps Vignesh R
[not found] ` <1415941651-28962-1-git-send-email-vigneshr-l0cyMroinI0@public.gmane.org>
2014-11-14 5:07 ` [PATCH v4 2/6] input: touchscreen: ti_am335x_tsc: Remove udelay in interrupt handler Vignesh R
[not found] ` <1415941651-28962-3-git-send-email-vigneshr-l0cyMroinI0@public.gmane.org>
2014-11-15 19:27 ` Richard Cochran
[not found] ` <20141115192739.GA18766-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2014-11-17 4:27 ` Vignesh R
[not found] ` <54697919.5030302-l0cyMroinI0@public.gmane.org>
2014-11-17 8:23 ` Richard Cochran
[not found] ` <20141117082337.GA3946-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2014-11-17 12:18 ` Vignesh R
2014-11-14 5:07 ` [PATCH v4 3/6] mfd: ti_am335x_tscadc: Remove unwanted reg_se_cache save Vignesh R
2014-11-18 14:30 ` Lee Jones
2014-11-18 17:12 ` Dmitry Torokhov
2014-11-20 13:56 ` Sekhar Nori
[not found] ` <546DF2F0.9080405-l0cyMroinI0@public.gmane.org>
2014-11-20 14:23 ` Griffis, Brad
2014-11-20 14:34 ` Richard Cochran
2014-11-20 14:40 ` Richard Cochran
[not found] ` <20141120144028.GB5809-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2014-11-21 12:10 ` Sekhar Nori
2014-11-21 13:10 ` Richard Cochran
2014-11-21 15:11 ` Johannes Pointner
[not found] ` <CAJKbBDDVTA+=priRu7sCD=vHrC8AUg4DM3kycuGrqbpF-5FGAA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-11-21 15:37 ` Sekhar Nori
2014-11-21 18:17 ` Johannes Pointner
2014-11-21 21:40 ` Richard Cochran
2014-11-21 22:25 ` Griffis, Brad
2014-11-24 8:32 ` Johannes Pointner
[not found] ` <20141121131036.GA18931-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2014-11-24 8:57 ` Sebastian Andrzej Siewior
2014-11-24 10:01 ` Richard Cochran [this message]
2014-11-14 5:07 ` [PATCH v4 4/6] ARM: dts: AM335x: Make charge delay a DT parameter for TSC Vignesh R
2014-11-14 18:03 ` Tony Lindgren
2014-11-14 5:07 ` [PATCH v4 5/6] input: touchscreen: ti_am335x_tsc: Use charge delay DT parameter Vignesh R
2014-11-14 5:07 ` [PATCH v4 6/6] input: touchscreen: ti_am335x_tsc: Replace delta filtering with median filtering Vignesh R
2014-11-24 11:51 ` [PATCH v4 0/6] Touchscreen performance related fixes Sebastian Andrzej Siewior
2014-11-24 12:16 ` Vignesh R
2014-11-24 12:35 ` Sebastian Andrzej Siewior
[not found] ` <547325FA.6020004-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org>
2014-11-27 4:29 ` Vignesh R
[not found] ` <20141124115116.GA14997-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org>
2014-12-01 9:53 ` Vignesh R
[not found] ` <547C3A95.30605-l0cyMroinI0@public.gmane.org>
2014-12-01 9:59 ` Sebastian Andrzej Siewior
2014-12-01 10:29 ` Vignesh R
[not found] ` <547C42FF.5010700-l0cyMroinI0@public.gmane.org>
2014-12-11 20:34 ` Nicolae Rosia
2014-12-11 20:40 ` Sebastian Andrzej Siewior
2014-12-12 13:48 ` Vignesh R
2014-12-12 13:55 ` Catalin Crenguta
2014-12-12 14:16 ` Griffis, Brad
2014-12-15 7:55 ` Catalin Crenguta
[not found] ` <912A29987EAE174BA6CF187D7CDFA9CE26FA135A-YmePFLaaepqIQmiDNMet8wC/G2K4zDHf@public.gmane.org>
2014-12-15 12:45 ` Catalin Crenguta
2014-12-16 8:31 ` Catalin Crenguta
[not found] ` <CABH3fy8S1Hb9LK=ZceWgJsNvLbq8pwu00Tcj_0vE4j6QzcO+kg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-12-16 15:30 ` Richard Cochran
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