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From: vigneshr@ti.com (Vignesh R)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v4 0/6] Touchscreen performance related fixes
Date: Thu, 27 Nov 2014 09:59:33 +0530	[thread overview]
Message-ID: <5476A8AD.4010003@ti.com> (raw)
In-Reply-To: <547325FA.6020004@linutronix.de>



On Monday 24 November 2014 06:05 PM, Sebastian Andrzej Siewior wrote:
> On 11/24/2014 01:16 PM, Vignesh R wrote:
> 
>> I have tried running both IIO and TSC at the same time. But I have never
>> seen WARN_ON() even after running for close to 30 min. Can you send me
>> the exact script, so that it will be easy to reproduce?
> 
> Sure thing.
> - one shell
> 	evtest /dev/input/event2
> - second shell
> 	./iio-test.sh
>   with:
> 
> |#!/bin/sh
> |
> |while [ 1 = 1 ]
> |do
> |        cat /sys/bus/iio/devices/iio\:device0/in_voltage4_raw
> |done
> 
> 
> the kernel config: https://breakpoint.cc/am335x-config
> 

I was able to reproduce this issue. When ADC hits WARN_ON(), the TSC
steps should be disabled. But, in this case, TSC is sampling the first Y
co-ordinate and all TSC steps are enabled.
REG_SE: 0x1ffc1
ADC_STAT: 0x24

Any idea why this may be happening?

Regards
Vignesh

  reply	other threads:[~2014-11-27  4:29 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
2014-11-14  5:07 ` [PATCH v4 2/6] input: touchscreen: ti_am335x_tsc: Remove udelay in interrupt handler Vignesh R
2014-11-15 19:27   ` Richard Cochran
2014-11-17  4:27     ` Vignesh R
2014-11-17  8:23       ` Richard Cochran
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
2014-11-20 14:23         ` Griffis, Brad
2014-11-20 14:34           ` Richard Cochran
2014-11-20 14:40         ` Richard Cochran
2014-11-21 12:10           ` Sekhar Nori
2014-11-21 13:10             ` Richard Cochran
2014-11-21 15:11               ` Johannes Pointner
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
2014-11-24  8:57               ` Sebastian Andrzej Siewior
2014-11-24 10:01                 ` Richard Cochran
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
2014-11-27  4:29       ` Vignesh R [this message]
2014-12-01  9:53   ` Vignesh R
2014-12-01  9:59     ` Sebastian Andrzej Siewior
2014-12-01 10:29       ` Vignesh R
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
2014-12-15 12:45                 ` Catalin Crenguta
2014-12-16  8:31                 ` Catalin Crenguta
2014-12-16 15:30                   ` Richard Cochran

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