From: Sebastian Reichel <sre@kernel.org>
To: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
Cc: "Grygorii Strashko" <grygorii.strashko@ti.com>,
"Pali Rohár" <pali.rohar@gmail.com>,
"Peter Ujfalusi" <peter.ujfalusi@ti.com>,
"Jarkko Nikula" <jarkko.nikula@bitmer.com>,
"Tony Lindgren" <tony@atomide.com>,
"Lars-Peter Clausen" <lars@metafoo.de>,
linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org,
"Pavel Machek" <pavel@ucw.cz>,
"Aaro Koskinen" <aaro.koskinen@iki.fi>,
"Nishanth Menon" <nm@ti.com>,
merlijn@wizzup.org
Subject: Re: Nokia N900 - audio TPA6130A2 problems
Date: Thu, 17 Mar 2016 01:49:18 +0100 [thread overview]
Message-ID: <20160317004917.GA6750@earth> (raw)
In-Reply-To: <56E9B910.7000904@gmail.com>
[-- Attachment #1: Type: text/plain, Size: 4665 bytes --]
Hi,
On Wed, Mar 16, 2016 at 09:50:40PM +0200, Ivaylo Dimitrov wrote:
> Jan 1 06:01:43 Nokia-N900 kernel: [ 6.947998] omap_i2c 48070000.i2c: bus 1 rev3.3 at 2200 kHz
> Jan 1 06:01:43 Nokia-N900 kernel: [ 6.960632] tpa6130a2 2-0060: Write failed
> Jan 1 06:01:43 Nokia-N900 kernel: [ 6.965026] CPU: 0 PID: 6 Comm: kworker/u2:0 Not tainted 4.5.0-rc5+ #26
> Jan 1 06:01:43 Nokia-N900 kernel: [ 6.972106] Hardware name: Nokia RX-51 board
> Jan 1 06:01:43 Nokia-N900 kernel: [ 6.976684] Workqueue: deferwq deferred_probe_work_func
> Jan 1 06:01:43 Nokia-N900 kernel: [ 6.982299] [<c0013c18>] (unwind_backtrace) from [<c0011f38>] (show_stack+0x10/0x14)
> Jan 1 06:01:43 Nokia-N900 kernel: [ 6.990570] [<c0011f38>] (show_stack) from [<c0390884>] (tpa6130a2_i2c_write+0x58/0x90)
> Jan 1 06:01:43 Nokia-N900 kernel: [ 6.999114] [<c0390884>] (tpa6130a2_i2c_write) from [<c0390968>] (tpa6130a2_power+0xac/0x1c4)
> Jan 1 06:01:43 Nokia-N900 kernel: [ 7.008239] [<c0390968>] (tpa6130a2_power) from [<c0390d80>] (tpa6130a2_probe+0x144/0x234)
> Jan 1 06:01:43 Nokia-N900 kernel: [ 7.017059] [<c0390d80>] (tpa6130a2_probe) from [<c032b650>] (i2c_device_probe+0x170/0x1b8)
> Jan 1 06:01:43 Nokia-N900 kernel: [ 7.025939] [<c032b650>] (i2c_device_probe) from [<c02a7bd4>] (driver_probe_device+0x120/0x2b0)
> Jan 1 06:01:43 Nokia-N900 kernel: [ 7.035247] [<c02a7bd4>] (driver_probe_device) from [<c02a62c8>] (bus_for_each_drv+0x48/0x8c)
> Jan 1 06:01:43 Nokia-N900 kernel: [ 7.044311] [<c02a62c8>] (bus_for_each_drv) from [<c02a7a20>] (__device_attach+0x88/0xf8)
> Jan 1 06:01:43 Nokia-N900 kernel: [ 7.053009] [<c02a7a20>] (__device_attach) from [<c02a70b0>] (bus_probe_device+0x28/0x80)
> Jan 1 06:01:43 Nokia-N900 kernel: [ 7.061737] [<c02a70b0>] (bus_probe_device) from [<c02a5680>] (device_add+0x3c0/0x55c)
> Jan 1 06:01:43 Nokia-N900 kernel: [ 7.070159] [<c02a5680>] (device_add) from [<c032cf28>] (i2c_new_device+0xf8/0x198)
> Jan 1 06:01:43 Nokia-N900 kernel: [ 7.078308] [<c032cf28>] (i2c_new_device) from [<c032d4e8>] (i2c_register_adapter+0x2d0/0x47c)
> Jan 1 06:01:43 Nokia-N900 kernel: [ 7.087432] [<c032d4e8>] (i2c_register_adapter) from [<c032f084>] (omap_i2c_probe+0x54c/0x64c)
> Jan 1 06:01:43 Nokia-N900 kernel: [ 7.096618] [<c032f084>] (omap_i2c_probe) from [<c02a93bc>] (platform_drv_probe+0x58/0xa0)
> Jan 1 06:01:43 Nokia-N900 kernel: [ 7.105438] [<c02a93bc>] (platform_drv_probe) from [<c02a7bd4>] (driver_probe_device+0x120/0x2b0)
> Jan 1 06:01:43 Nokia-N900 kernel: [ 7.114929] [<c02a7bd4>] (driver_probe_device) from [<c02a62c8>] (bus_for_each_drv+0x48/0x8c)
> Jan 1 06:01:43 Nokia-N900 kernel: [ 7.123962] [<c02a62c8>] (bus_for_each_drv) from [<c02a7a20>] (__device_attach+0x88/0xf8)
> Jan 1 06:01:43 Nokia-N900 kernel: [ 7.132659] [<c02a7a20>] (__device_attach) from [<c02a70b0>] (bus_probe_device+0x28/0x80)
> Jan 1 06:01:43 Nokia-N900 kernel: [ 7.141357] [<c02a70b0>] (bus_probe_device) from [<c02a7508>] (deferred_probe_work_func+0x58/0x84)
> Jan 1 06:01:43 Nokia-N900 kernel: [ 7.150939] [<c02a7508>] (deferred_probe_work_func) from [<c0042a50>] (process_one_work+0x1c4/0x324)
> Jan 1 06:01:43 Nokia-N900 kernel: [ 7.160705] [<c0042a50>] (process_one_work) from [<c0042ef4>] (worker_thread+0x314/0x4a8)
> Jan 1 06:01:43 Nokia-N900 kernel: [ 7.169433] [<c0042ef4>] (worker_thread) from [<c00474e4>] (kthread+0xcc/0xe0)
> Jan 1 06:01:43 Nokia-N900 kernel: [ 7.177154] [<c00474e4>] (kthread) from [<c000f218>] (ret_from_fork+0x14/0x3c)
> Jan 1 06:01:43 Nokia-N900 kernel: [ 7.184783] tpa6130a2 2-0060: Failed to initialize chip
> Jan 1 06:01:43 Nokia-N900 kernel: [ 7.190551] tpa6130a2: probe of 2-0060 failed with error -121
> Jan 1 06:01:43 Nokia-N900 kernel: [ 7.197174] omap_i2c 48072000.i2c: bus 2 rev3.3 at 100 kHz
>
> now, the only thing I can think of remaining to test is the reset gpio set-up -
> I wonder if it is possible to be set in safe mode(or input, or... ?), so the
> reset is never deasserted.
mh both, the power gpio is turned off in tpa6130a2_power(0). I guess
if you don't see the problem during probe() everything works?
I have another idea though: In opposit to the gpio, the regulator
may also be referenced by something else/already enabled. I guess
adding a sleep after the regulator_enable() is worth a try.
Also I wonder if the same happens, if you avoid having the module
available during boot and instead load it once everything has
settled. That would rule out any side-effects of other modules
being probed on the same i2c bus.
-- Sebastian
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 819 bytes --]
next prev parent reply other threads:[~2016-03-17 0:49 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-25 10:28 Nokia N900 - audio TPA6130A2 problems Pali Rohár
2015-07-25 13:17 ` Lars-Peter Clausen
2015-08-01 10:18 ` Pali Rohár
2015-08-03 18:03 ` Jarkko Nikula
2015-08-03 18:17 ` Pali Rohár
2015-08-03 18:48 ` Jarkko Nikula
2015-08-03 18:55 ` Pali Rohár
2015-08-04 7:02 ` Peter Ujfalusi
2016-01-04 23:34 ` Pali Rohár
2016-03-06 15:23 ` Sebastian Reichel
2016-03-07 11:59 ` Pali Rohár
2016-03-08 6:45 ` Ivaylo Dimitrov
2016-03-12 12:39 ` Pali Rohár
2016-03-12 12:42 ` Pali Rohár
2016-03-14 9:59 ` Peter Ujfalusi
2016-03-14 17:05 ` Ivaylo Dimitrov
2016-03-16 13:33 ` Pali Rohár
2016-03-16 14:47 ` Sebastian Reichel
2016-03-16 18:21 ` Ivaylo Dimitrov
2016-03-16 18:32 ` Grygorii Strashko
2016-03-16 19:50 ` Ivaylo Dimitrov
2016-03-17 0:49 ` Sebastian Reichel [this message]
2016-03-17 7:56 ` Ivaylo Dimitrov
2016-03-17 13:01 ` Pali Rohár
2016-03-17 13:11 ` Ivaylo Dimitrov
2016-03-17 13:33 ` Tony Lindgren
2016-03-17 13:50 ` Ivaylo Dimitrov
2016-03-17 14:32 ` Tony Lindgren
2016-03-17 14:58 ` Ivaylo Dimitrov
2016-03-17 7:53 ` Peter Ujfalusi
2016-03-17 17:26 ` Ivaylo Dimitrov
2016-03-18 10:33 ` Peter Ujfalusi
2016-03-18 13:13 ` Ивайло Димитров
2016-03-18 13:36 ` Sebastian Reichel
2016-03-18 13:45 ` Ivaylo Dimitrov
2016-03-18 15:04 ` Sebastian Reichel
2016-03-18 15:56 ` Ivaylo Dimitrov
2016-03-19 8:49 ` Ivaylo Dimitrov
2016-03-20 5:17 ` Sebastian Reichel
2016-03-20 19:43 ` Ivaylo Dimitrov
2016-03-21 0:04 ` Sebastian Reichel
2016-03-21 1:40 ` Sebastian Reichel
2016-03-21 12:03 ` Mark Brown
2016-03-21 11:45 ` Mark Brown
2016-03-21 13:39 ` Ivaylo Dimitrov
2016-03-21 13:45 ` Mark Brown
2016-03-21 14:53 ` Sebastian Reichel
2016-03-21 19:34 ` Ivaylo Dimitrov
2016-03-22 8:02 ` Ivaylo Dimitrov
2016-04-01 10:43 ` Race condition in TPA6130A2 (Was: Re: Nokia N900 - audio TPA6130A2 problems) Pali Rohár
2015-08-14 20:46 ` Nokia N900 - audio TPA6130A2 problems Pavel Machek
2015-08-14 20:54 ` Pali Rohár
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20160317004917.GA6750@earth \
--to=sre@kernel.org \
--cc=aaro.koskinen@iki.fi \
--cc=grygorii.strashko@ti.com \
--cc=ivo.g.dimitrov.75@gmail.com \
--cc=jarkko.nikula@bitmer.com \
--cc=lars@metafoo.de \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-omap@vger.kernel.org \
--cc=merlijn@wizzup.org \
--cc=nm@ti.com \
--cc=pali.rohar@gmail.com \
--cc=pavel@ucw.cz \
--cc=peter.ujfalusi@ti.com \
--cc=tony@atomide.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).