From: "Jürgen Beisert" <jbe-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
To: Jonathan Cameron <jic23-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Cc: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
linux-iio-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
devel-gWbeCf7V1WCQmaza687I9mD2FQJk+8+b@public.gmane.org,
marex-ynQEQJNshbs@public.gmane.org,
fabio.estevam-KZfg59tc24xl57MIdRCFDg@public.gmane.org,
Dmitry Torokhov
<dmitry.torokhov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
jic23-KWPb1pKIrIJaa/9Udqfwiw@public.gmane.org,
linux-input-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH 6/9] Staging/iio/adc/touchscreen/MXS: add interrupt driven touch detection
Date: Tue, 1 Oct 2013 11:28:38 +0200 [thread overview]
Message-ID: <201310011128.38928.jbe@pengutronix.de> (raw)
In-Reply-To: <1379946998-23041-7-git-send-email-jbe-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
Hi Jonathan,
On Tuesday 01 October 2013 11:25:46 Jonathan Cameron wrote:
> a couple of the patch descriptions say that they are untested on i.MX28.
On Monday 23 September 2013 16:36:35 Juergen Beisert wrote:
> For battery driven systems it is a very bad idea to collect the touchscreen
> data within a kernel busy loop.
>
> This change uses the features of the hardware to delay and accumulate
> samples in hardware to avoid a high interrupt and CPU load.
>
> Note: this is only tested on an i.MX23 SoC yet.
This note is no longer true. Marek tested it on his M28EVK, Lothar on his TX28
and myself also on an i.MX28EVK.
For the IIO part of the driver I tested on my i.MX23 based ChumbyOne and some
customer hardware and it seems still to work (I can only guess if the values I
read from the sysfs entries are correct, sorry).
Regards,
Juergen
--
Pengutronix e.K. | Juergen Beisert |
Linux Solutions for Science and Industry | http://www.pengutronix.de/ |
next prev parent reply other threads:[~2013-10-01 9:28 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-23 14:36 [PATCHv6] staging/iio/adc: change the MXS touchscreen driver implementation Juergen Beisert
2013-09-23 14:36 ` [PATCH 1/9] Staging/iio/adc/touchscreen/MXS: add proper clock handling Juergen Beisert
2013-09-23 15:13 ` Fabio Estevam
[not found] ` <52405A7F.1050801-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
2013-09-24 7:50 ` Jürgen Beisert
2013-09-24 13:50 ` Fabio Estevam
2013-10-01 10:57 ` Jonathan Cameron
[not found] ` <1379946998-23041-2-git-send-email-jbe-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2013-09-23 15:30 ` Lothar Waßmann
[not found] ` <21056.24202.312851.105281-VjFSrY7JcPWvSplVBqRQBQ@public.gmane.org>
2013-09-24 7:39 ` Jürgen Beisert
2013-09-23 14:36 ` [PATCH 2/9] Staging/iio/adc/touchscreen/MXS: distinguish i.MX23's and i.MX28's LRADC Juergen Beisert
[not found] ` <1379946998-23041-3-git-send-email-jbe-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2013-10-01 10:58 ` Jonathan Cameron
2013-09-23 14:36 ` [PATCH 3/9] Staging/iio/adc/touchscreen/MXS: separate i.MX28 specific register bits Juergen Beisert
[not found] ` <1379946998-23041-4-git-send-email-jbe-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2013-10-01 11:00 ` Jonathan Cameron
2013-09-23 14:36 ` [PATCH 4/9] Staging/iio/adc/touchscreen/MXS: simplify register access Juergen Beisert
2013-10-01 11:01 ` Jonathan Cameron
2013-09-23 14:36 ` [PATCH 5/9] Staging/iio/adc/touchscreen/MXS: add i.MX23 support to the LRADC touchscreen driver Juergen Beisert
2013-10-01 11:02 ` Jonathan Cameron
2013-09-23 14:36 ` [PATCH 6/9] Staging/iio/adc/touchscreen/MXS: add interrupt driven touch detection Juergen Beisert
[not found] ` <1379946998-23041-7-git-send-email-jbe-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2013-10-01 9:28 ` Jürgen Beisert [this message]
2013-10-01 10:51 ` Jonathan Cameron
[not found] ` <524AA91F.7000906-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
2013-10-01 11:06 ` Jonathan Cameron
2013-09-23 14:36 ` [PATCH 7/9] Staging/iio/adc/touchscreen/MXS: remove old touchscreen detection implementation Juergen Beisert
2013-10-01 11:13 ` Jonathan Cameron
2013-09-23 14:36 ` [PATCH 9/9] Staging/iio: add TODO reminder Juergen Beisert
[not found] ` <1379946998-23041-10-git-send-email-jbe-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2013-10-01 11:14 ` Jonathan Cameron
[not found] ` <524AAEA8.4090106-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
2013-10-01 11:21 ` Jonathan Cameron
[not found] ` <524AB04C.4070409-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
2013-10-01 11:22 ` Jonathan Cameron
[not found] ` <1379946998-23041-1-git-send-email-jbe-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2013-09-23 14:36 ` [PATCH 8/9] Staging/iio/adc/touchscreen/MXS: provide devicetree adaption Juergen Beisert
[not found] ` <1379946998-23041-9-git-send-email-jbe-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2013-10-01 11:14 ` Jonathan Cameron
2013-09-23 15:25 ` [PATCHv6] staging/iio/adc: change the MXS touchscreen driver implementation Marek Vasut
2013-10-01 9:25 ` Jonathan Cameron
[not found] ` <524A951A.5050606-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
2013-10-01 10:49 ` Marek Vasut
2014-01-09 13:31 ` Alexandre Belloni
[not found] ` <52CEA4AA.8050503-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
2014-01-10 8:55 ` Jürgen Beisert
2014-02-04 23:45 ` Marek Vasut
[not found] ` <201401100955.45885.jbe-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2014-02-24 13:16 ` Juergen Beisert
2014-02-24 13:33 ` Dan Carpenter
2014-02-24 14:38 ` Juergen Beisert
2014-02-24 14:47 ` Dan Carpenter
2014-02-24 14:39 ` [PATCH] staging/iio/adc/MXS/LRADC: fix touchscreen statemachine Juergen Beisert
2014-02-24 16:48 ` Alexandre Belloni
[not found] ` <20140224164817.GE4436-m++hUPXGwpdeoWH0uzbU5w@public.gmane.org>
2014-02-24 21:14 ` Jonathan Cameron
[not found] ` <530BB63D.4050200-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
2014-02-24 22:04 ` Jonathan Cameron
[not found] ` <201402241416.24270.jbe-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2014-02-24 14:26 ` [PATCHv6] staging/iio/adc: change the MXS touchscreen driver implementation Alexandre Belloni
[not found] ` <20140224142658.GD4436-m++hUPXGwpdeoWH0uzbU5w@public.gmane.org>
2014-02-24 17:14 ` Jonathan Cameron
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