From: "Girish" <girishsg@ti.com>
To: 'arun c' <arun.edarath@gmail.com>, linux-omap-open-source@linux.omap.com
Subject: RE: touch screen on 2430sdp not giving X and Y values
Date: Mon, 29 Oct 2007 18:23:41 +0530 [thread overview]
Message-ID: <000001c81a2a$bc3ea5b0$6a8918ac@ent.ti.com> (raw)
In-Reply-To: <c656a4d20710290335h5f754ee2nf4eea969366530d1@mail.gmail.com>
>> I guess vaux2 has to be enabled for TS to work on 2430sdp, you can
>> Cross check in TRM.
>
>Power supply is OK, i think so because everything is working
>fine on CSST diagnostics tests.
What I mean to say is, the vaux won't be enabled before. So check if init/probe of TS driver is doing so.
Because, even if you get pen-irq if touch screen interface is not powered up then co-ordinates values wont
get generated.
>omap_tsc2046_read_buf [317] X : 0 Y:0 P : 0
>
>omap_tsc2046_read_buf[332]:Exit(0)
>omap_tsc2046_tasklet[366]:Exit(0)
>omap_tsc2046_timer Entry
>pen_down Entry
>pen_down[249]:Exit(1)
>omap_tsc2046_timer[395]:Exit(0)
>
>The problem is that for all the presses i am getting
>
>X=0 Y=0 and P=0
>what could be the problem????? please somebody help me
you are getting penirq, the problem should be TS interface not powered up or
SPI interface with TS is not properly done. Apart from this I don’t see anyting should cause such
behaviour. If the vaux is enabled properly then you can see if spi.1 is correctly plugged for TS or not.
girish
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prev parent reply other threads:[~2007-10-29 12:53 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-26 12:32 touch screen on 2430sdp not giving X and Y values arun c
2007-10-26 16:01 ` Girish
2007-10-29 6:30 ` arun c
2007-10-29 7:22 ` Girish
2007-10-29 10:35 ` arun c
[not found] ` <20071029122306.C2A7C23B30D@adsl-69-226-248-13.dsl.pltn13.pacbell.net>
[not found] ` <c656a4d20710290546i2cb75638u98a3b172ec56ee0e@mail.gmail.com>
2007-10-29 12:49 ` arun c
[not found] ` <20071029130307.55CC523BCDE@adsl-69-226-248-13.dsl.pltn13.pacbell.net>
2007-10-30 14:34 ` arun c
2007-10-29 12:53 ` Girish [this message]
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