From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S967041AbeEXJrS (ORCPT ); Thu, 24 May 2018 05:47:18 -0400 Received: from atrey.karlin.mff.cuni.cz ([195.113.26.193]:39753 "EHLO atrey.karlin.mff.cuni.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S967013AbeEXJrI (ORCPT ); Thu, 24 May 2018 05:47:08 -0400 Date: Thu, 24 May 2018 11:47:05 +0200 From: Pavel Machek To: Tony Lindgren Cc: Aaro Koskinen , Pali =?iso-8859-1?Q?Roh=E1r?= , sre@kernel.org, kernel list , linux-arm-kernel , linux-omap@vger.kernel.org, khilman@kernel.org, ivo.g.dimitrov.75@gmail.com, patrikbachan@gmail.com, serge@hallyn.com, abcloriens@gmail.com, clayton@craftyguy.net, martijn@brixit.nl, sakari.ailus@linux.intel.com, Filip =?utf-8?Q?Matijevi=C4=87?= , Thorsten Leemhuis Subject: Re: v4.17-rc1: regressions on N900, N950 Message-ID: <20180524094705.GA16705@amd> References: <20180422074213.GA12428@amd> <20180423202940.ig6iud5lrbgnu35a@darkstar.musicnaut.iki.fi> <20180521213952.GA11596@amd> <20180522080250.4fzyvqrgw5oigexn@pali> <20180522194139.GB2299@darkstar.musicnaut.iki.fi> <20180522205824.GA24927@amd> <20180522215638.GC2299@darkstar.musicnaut.iki.fi> <20180523140615.GA27180@amd> <20180523201208.GA31731@amd> <20180523220456.GY98604@atomide.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="9amGYk9869ThD9tj" Content-Disposition: inline In-Reply-To: <20180523220456.GY98604@atomide.com> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --9amGYk9869ThD9tj Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi! > > > So... I did some experiments on v4.16. > > >=20 > > > Swapping tsc2005@0 and lcd: acx565akm@2 entries in the dts does break > > > stuff. > > >=20 > > > I thought it might be due to vio regulator, but it does not appear > > > so... screen still works with tsc2005 driver disabled in .config. (so > > > there's noone to enable vio regulator). > >=20 > > Deleting tsc2005@0 entry also breaks screen. > >=20 > > Replacing tsc2005@0 entry with=20 > >=20 > > foobar@0 { > > compatible =3D "not really with anything"; > > spi-max-frequency =3D <6000000>; > > reg =3D <0>; > > }; > >=20 > > still results in working touchscreen, removing any of the three fields > > breaks it again. >=20 > I bisected one regression down, see "omapdrm regression in v4.17-rc serie= s" > not sure if it covers all the issues being discussed here though. Reverting 24aac6011f70 fixes screen on n900 in v4.17-rc for me. (But strange dependency on tsc2005@0 is still there). Best regards, Pavel --=20 (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo= g.html --9amGYk9869ThD9tj Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEYEARECAAYFAlsGihkACgkQMOfwapXb+vJ0rgCglJW7XtpGu4tG1Z6c0yqPXNAm Y0MAnj2+L76ZZfueUH00t5AKakHguU8Q =wIst -----END PGP SIGNATURE----- --9amGYk9869ThD9tj--