From mboxrd@z Thu Jan 1 00:00:00 1970 From: sre@kernel.org (Sebastian Reichel) Date: Tue, 10 Jul 2018 12:11:47 +0200 Subject: Vibrations on Droid 4? In-Reply-To: <20180709220211.GA7760@amd> References: <20180709081534.GA6799@amd> <20180709214910.tes6u4ivxomd3aja@earth.universe> <20180709220211.GA7760@amd> Message-ID: <20180710101147.lyu65ro4czvrs2da@earth.universe> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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 -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 833 bytes Desc: not available URL: