From: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
To: Sebastian Reichel <sre@kernel.org>
Cc: "Peter Ujfalusi" <peter.ujfalusi@ti.com>,
"Grygorii Strashko" <grygorii.strashko@ti.com>,
"Pali Rohár" <pali.rohar@gmail.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: Sat, 19 Mar 2016 10:49:57 +0200 [thread overview]
Message-ID: <56ED12B5.9000103@gmail.com> (raw)
In-Reply-To: <20160318150404.GA30829@earth>
Hi,
On 18.03.2016 17:04, Sebastian Reichel wrote:
> Hi,
>
> On Fri, Mar 18, 2016 at 03:45:26PM +0200, Ivaylo Dimitrov wrote:
>> On 18.03.2016 15:36, Sebastian Reichel wrote:
>>
>>
>> Regulator is V28_A, which is always-on, so it is enabled no matter what
>> probe does. Anyway, I added a various delays after regulator_enable(), to no
>> success.
>
I guess we're getting closer - I put some printks in various functions
in the twl-regulator.c, here is the result:
on power-up:
[ 2.378601] twl4030ldo_get_voltage_sel VMMC2 vsel 0x00000008
[ 2.384948] twl4030reg_enable VMMC2 grp 0x00000020
[ 2.408416] twl4030ldo_get_voltage_sel VMMC2 vsel 0x00000008
[ 7.196685] twl4030reg_is_enabled VMMC2 state 0x0000002e
[ 7.202819] twl4030reg_is_enabled VMMC2 state 0x0000002e
[ 7.209777] twl4030reg_is_enabled VMMC2 state 0x0000002e
[ 7.215728] twl4030reg_is_enabled VMMC2 state 0x0000002e
[ 7.223205] twl4030reg_is_enabled VMMC2 state 0x0000002e
after restart from stock kernel:
[ 2.388610] twl4030ldo_get_voltage_sel VMMC2 vsel 0x0000000a
[ 2.394958] twl4030reg_enable VMMC2 grp 0x00000028
[ 2.418426] twl4030ldo_get_voltage_sel VMMC2 vsel 0x0000000a
[ 7.186645] twl4030reg_is_enabled VMMC2 state 0x00000020
[ 7.192718] twl4030reg_is_enabled VMMC2 state 0x00000020
[ 7.199615] twl4030reg_is_enabled VMMC2 state 0x00000020
[ 7.205535] twl4030reg_is_enabled VMMC2 state 0x00000020
[ 7.212951] twl4030reg_is_enabled VMMC2 state 0x00000020
I don't see twl4030ldo_set_voltage_sel() for VMMC2(V28_A) regulator,
though there are calls for VMMC1 and VAUX3.
So, it seems to me that V28_A is not enabled or correctly set-up and all
devices connected to it does not function. And it looks like even after
power-on VMMC2 is not correctly set-up - it is supposed to have voltage
of 2.85V (10) but kernel leaves it to 2.60V (8). However my twl-fu ends
here so any help is appreciated.
Ivo
next prev parent reply other threads:[~2016-03-19 8:49 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
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 [this message]
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
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