From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pavel Machek Subject: Re: Vibrations on Droid 4? Date: Wed, 11 Jul 2018 10:02:18 +0200 Message-ID: <20180711080218.GA21225@amd> References: <20180709081534.GA6799@amd> <20180709214910.tes6u4ivxomd3aja@earth.universe> <20180709220211.GA7760@amd> <20180710101147.lyu65ro4czvrs2da@earth.universe> <20180710133040.GA4391@amd> <20180710161123.azym6sbboriuj4yc@earth.universe> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="8t9RHnE3ZwKMSgU+" Return-path: Content-Disposition: inline In-Reply-To: <20180710161123.azym6sbboriuj4yc@earth.universe> Sender: linux-kernel-owner@vger.kernel.org To: Sebastian Reichel Cc: kernel list , linux-arm-kernel , linux-omap@vger.kernel.org, tony@atomide.com, nekit1000@gmail.com, mpartap@gmx.net, merlijn@wizzup.org List-Id: linux-omap@vger.kernel.org --8t9RHnE3ZwKMSgU+ Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi! > > Its parent is gpio@4805d000 , and that one seems to be present. > >=20 > > user@devuan:/sys/bus/platform/devices$ ls 4805d000.gpio > > driver driver_override gpio > > gpiochip5 modalias of_node power subsystem uevent >=20 > Sorry, something went wrong with merging this. The parent > of ti,omap-dmtimer-pwm and pwm-vibrator should be / and > not gpio6. Ok, got it to probe... after dts fix and adding EPROBE_DEFFER to driver. Still can't get it to actually vibrate.=20 user@devuan:/sys/bus/platform/drivers/pwm-vibrator/vibrator$ sudo fftest /d= ev/input/event3 Force feedback test program. HOLD FIRMLY YOUR WHEEL OR JOYSTICK TO PREVENT DAMAGES Device /dev/input/event3 opened Features: * Absolute axes:=20 [00 00 00 00 00 00 00 00 ] * Relative axes:=20 [00 00 ] * Force feedback effects types: Periodic, Rumble, Gain,=20 Force feedback periodic effects: Square, Triangle, Sine,=20 [00 00 00 00 00 00 00 00 00 00 03 07 01 00 00 00 ] * Number of simultaneous effects: 16 Setting master gain to 75% ... OK Uploading effect #0 (Periodic sinusoidal) ... OK (id 0) Uploading effect #1 (Constant) ... Error: Invalid argument Uploading effect #2 (Spring) ... Error: Invalid argument Uploading effect #3 (Damper) ... Error: Invalid argument Uploading effect #4 (Strong rumble, with heavy motor) ... OK (id 1) Uploading effect #5 (Weak rumble, with light motor) ... OK (id 2) Enter effect number, -1 to exit 5 Now Playing: Weak Rumble Enter effect number, -1 to exit 0 Now Playing: Sine vibration Enter effect number, -1 to exit 5 Now Playing: Weak Rumble Enter effect number, -1 to exit ^C diff --git a/arch/arm/boot/dts/omap4-droid4-xt894.dts b/arch/arm/boot/dts/o= map4-droid4-xt894.dts index 45305e8..c27fc87 100644 --- a/arch/arm/boot/dts/omap4-droid4-xt894.dts +++ b/arch/arm/boot/dts/omap4-droid4-xt894.dts @@ -159,13 +159,7 @@ =20 dais =3D <&mcbsp2_port>, <&mcbsp3_port>; }; -}; - -&dss { - status =3D "okay"; -}; =20 -&gpio6 { pwm8: dmtimer-pwm-8 { pinctrl-names =3D "default"; pinctrl-0 =3D <&vibrator_direction_pin>; @@ -192,7 +186,10 @@ pwm-names =3D "enable", "direction"; direction-duty-cycle-ns =3D <10000000>; }; +}; =20 +&dss { + status =3D "okay"; }; =20 &dsi1 { diff --git a/drivers/pwm/pwm-omap-dmtimer.c b/drivers/pwm/pwm-omap-dmtimer.c index 665da3c..debeb70 100644 --- a/drivers/pwm/pwm-omap-dmtimer.c +++ b/drivers/pwm/pwm-omap-dmtimer.c @@ -265,7 +271,7 @@ static int pwm_omap_dmtimer_probe(struct platform_devic= e *pdev) timer_pdata =3D dev_get_platdata(&timer_pdev->dev); if (!timer_pdata) { dev_err(&pdev->dev, "dmtimer pdata structure NULL\n"); - ret =3D -EINVAL; + ret =3D -EPROBE_DEFER; goto put; } =20 --=20 (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo= g.html --8t9RHnE3ZwKMSgU+ Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEYEARECAAYFAltFuYkACgkQMOfwapXb+vK/GwCfQSwrRqHmWj9PksscqKKoiZe0 GNkAoIPXiK6v4gx+OFfegqT8u1XHasEK =RHBm -----END PGP SIGNATURE----- --8t9RHnE3ZwKMSgU+--