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From: Sebastian Reichel <sre@kernel.org>
To: Pavel Machek <pavel@ucw.cz>
Cc: kernel list <linux-kernel@vger.kernel.org>,
	linux-arm-kernel <linux-arm-kernel@lists.infradead.org>,
	linux-omap@vger.kernel.org, tony@atomide.com,
	nekit1000@gmail.com, mpartap@gmx.net, merlijn@wizzup.org
Subject: Re: Vibrations on Droid 4?
Date: Tue, 10 Jul 2018 12:11:47 +0200	[thread overview]
Message-ID: <20180710101147.lyu65ro4czvrs2da@earth.universe> (raw)
In-Reply-To: <20180709220211.GA7760@amd>

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Hi,

On Tue, Jul 10, 2018 at 12:02:11AM +0200, Pavel Machek wrote:
> Hi!
> 
> > > Do you have vibrations on d4 working?
> > > I believe I have required drivers enabled, but no luck:
> > > 
> > > user@devuan:/sys/bus/platform/drivers$ ls pwm-vibrator/
> > > bind  uevent  unbind
> > > user@devuan:/sys/bus/platform/drivers$ ls omap-dmtimer-pwm/
> > > bind  uevent  unbind
> > 
> > Have you checked probe deferrals?
> 
> Not really. Is there easier way to do that than adding printks in the
> probe function? (I can go through dmesg tommorow).

Option 1: https://lkml.org/lkml/2018/7/8/63

Option 2: dynamic debug via kernel commandline (needs CONFIG_DYNAMIC_DEBUG)

dyndbg="func deferred_probe_work_func +p; func driver_deferred_probe_add +p"

Option 3: use "initcall_debug" kernel commandline

-- Sebastian

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WARNING: multiple messages have this Message-ID (diff)
From: sre@kernel.org (Sebastian Reichel)
To: linux-arm-kernel@lists.infradead.org
Subject: Vibrations on Droid 4?
Date: Tue, 10 Jul 2018 12:11:47 +0200	[thread overview]
Message-ID: <20180710101147.lyu65ro4czvrs2da@earth.universe> (raw)
In-Reply-To: <20180709220211.GA7760@amd>

Hi,

On Tue, Jul 10, 2018 at 12:02:11AM +0200, Pavel Machek wrote:
> Hi!
> 
> > > Do you have vibrations on d4 working?
> > > I believe I have required drivers enabled, but no luck:
> > > 
> > > user at devuan:/sys/bus/platform/drivers$ ls pwm-vibrator/
> > > bind  uevent  unbind
> > > user at devuan:/sys/bus/platform/drivers$ ls omap-dmtimer-pwm/
> > > bind  uevent  unbind
> > 
> > Have you checked probe deferrals?
> 
> Not really. Is there easier way to do that than adding printks in the
> probe function? (I can go through dmesg tommorow).

Option 1: https://lkml.org/lkml/2018/7/8/63

Option 2: dynamic debug via kernel commandline (needs CONFIG_DYNAMIC_DEBUG)

dyndbg="func deferred_probe_work_func +p; func driver_deferred_probe_add +p"

Option 3: use "initcall_debug" kernel commandline

-- Sebastian
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  reply	other threads:[~2018-07-10 10:11 UTC|newest]

Thread overview: 53+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-07-09  8:15 Vibrations on Droid 4? Pavel Machek
2018-07-09  8:15 ` Pavel Machek
2018-07-09 21:49 ` Sebastian Reichel
2018-07-09 21:49   ` Sebastian Reichel
2018-07-09 22:02   ` Pavel Machek
2018-07-09 22:02     ` Pavel Machek
2018-07-10 10:11     ` Sebastian Reichel [this message]
2018-07-10 10:11       ` Sebastian Reichel
2018-07-10 13:30       ` Pavel Machek
2018-07-10 13:30         ` Pavel Machek
2018-07-10 16:11         ` Sebastian Reichel
2018-07-10 16:11           ` Sebastian Reichel
2018-07-11  8:02           ` Pavel Machek
2018-07-11  8:02             ` Pavel Machek
2018-07-11 13:27             ` Tony Lindgren
2018-07-11 13:27               ` Tony Lindgren
2018-07-11 14:25               ` Sebastian Reichel
2018-07-11 14:25                 ` Sebastian Reichel
2018-07-16  7:10                 ` [PATCH] dts/droid4: fix dts w.r.t. pwm Pavel Machek
2018-07-16  7:10                   ` Pavel Machek
2018-07-16 10:11                   ` Sebastian Reichel
2018-07-16 10:11                     ` Sebastian Reichel
2018-07-17  6:48                     ` Tony Lindgren
2018-07-17  6:48                       ` Tony Lindgren
2018-07-16  7:13                 ` [PATCH] pwm-omap: handle timers not ready in probe Pavel Machek
2018-07-16  7:13                   ` Pavel Machek
2018-07-16  7:57                   ` Tony Lindgren
2018-07-16  7:57                     ` Tony Lindgren
2018-07-16  8:37                     ` Pavel Machek
2018-07-16  8:37                       ` Pavel Machek
2018-07-16 15:47                       ` David Rivshin
2018-07-16 15:47                         ` David Rivshin
2018-07-16 15:47                         ` David Rivshin
2018-07-15 20:17               ` Vibrations on Droid 4? Pavel Machek
2018-07-15 20:17                 ` Pavel Machek
2018-07-16  7:59                 ` Tony Lindgren
2018-07-16  7:59                   ` Tony Lindgren
2018-08-01 18:58                   ` Pavel Machek
2018-08-01 18:58                     ` Pavel Machek
2018-08-02 11:07                     ` Sebastian Reichel
2018-08-02 11:07                       ` Sebastian Reichel
2018-08-08 17:09                       ` Pavel Machek
2018-08-08 17:09                         ` Pavel Machek
2018-08-01 20:26                   ` Pavel Machek
2018-08-01 20:26                     ` Pavel Machek
2018-08-01 20:28                   ` [PATCH] fix vibrations on Droid 4 Pavel Machek
2018-08-01 20:28                     ` Pavel Machek
2018-08-02 10:55                     ` Sebastian Reichel
2018-08-02 10:55                       ` Sebastian Reichel
2018-08-17 14:26                       ` Tony Lindgren
2018-08-17 14:26                         ` Tony Lindgren
2018-07-11  8:25           ` Vibrations on Droid 4? Pavel Machek
2018-07-11  8:25             ` Pavel Machek

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