From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751639AbeA3Kfm (ORCPT ); Tue, 30 Jan 2018 05:35:42 -0500 Received: from atrey.karlin.mff.cuni.cz ([195.113.26.193]:50944 "EHLO atrey.karlin.mff.cuni.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751296AbeA3Kfl (ORCPT ); Tue, 30 Jan 2018 05:35:41 -0500 Date: Tue, 30 Jan 2018 11:35:38 +0100 From: Pavel Machek To: Ladislav Michl Cc: Filip =?utf-8?Q?Matijevi=C4=87?= , lgirdwood@gmail.com, broonie@kernel.org, robh+dt@kernel.org, mark.rutland@arm.com, perex@perex.cz, tiwai@suse.com, bhumirks@gmail.com, alsa-devel@alsa-project.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, pali.rohar@gmail.com, sre@kernel.org, linux-arm-kernel , linux-omap@vger.kernel.org, tony@atomide.com, khilman@kernel.org, aaro.koskinen@iki.fi, 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 Subject: Re: [PATCH] sound/tlv320dac33: Add device tree support Message-ID: <20180130103538.GD18104@amd> References: <20180129230539.GA18280@amd> <20180129232031.GA7695@lenoch> <20180129233301.GA18104@amd> <20180130083446.GA13498@lenoch> <20180130085314.GA4585@amd> <1141b126-b883-a246-85ad-c5a69acb90bb@gmail.com> <20180130093838.GA15195@lenoch> <20180130100023.GB18104@amd> <20180130101046.GA16474@lenoch> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="11Y7aswkeuHtSBEs" Content-Disposition: inline In-Reply-To: <20180130101046.GA16474@lenoch> 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 --11Y7aswkeuHtSBEs Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue 2018-01-30 11:10:46, Ladislav Michl wrote: > On Tue, Jan 30, 2018 at 11:00:23AM +0100, Pavel Machek wrote: > > On Tue 2018-01-30 10:38:38, Ladislav Michl wrote: > > > On Tue, Jan 30, 2018 at 10:11:02AM +0100, Filip Matijevi=C4=87 wrote: > > > > Hi, > > > >=20 > >=20 > > > > > Well, notice I'm converting existing driver to device tree. And t= hat > > > > > one already has GPIO dependency. It is possible that more work ne= eds > > > > > to be done there, but that should not be a reason to delay this. = Feel > > > > > free to help. > > >=20 > > > Adding DT properties that need to be maintained for compatibility rea= sons > > > is a bad idea and very good reason to delay merging unfinished stuff. > > > And meanwhile it turned out it is not power-gpio :) > >=20 > > I believe reset-gpios and power-gpios are commonly used like > > this... and that's what the old code does. >=20 > Why do you care about old code when introducing new DT property? > Either it is reset, then lets call it reset-gpios or it is power supply > and then voltage regulator should be used (VAUX4.OUT is such a regulator > although it is unclear to me how it is controlled (*)). power gpio =3D !reset gpio. Difference is only in polarity. > > You are not helping. >=20 > The only way I can help here is to resend your patch with "reset-gpios" > used, which I'm pretty sure you can handle yourself. Well, you can do that, and then you can argue with the next person who feels one of the properties has to get his preferred color. Hard part is not changing code :-(. Pavel > (*) Remark "DAC33 enabled (for example, plug in a headset to the 3.5mm > AV connector and start music playback from the device)" in schematics > suggests it is controlled somehow. --=20 (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo= g.html --11Y7aswkeuHtSBEs Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEYEARECAAYFAlpwSnoACgkQMOfwapXb+vJpSACfcoEayAIDb8i+euYVi6ax51do 2ogAoLNW73ZHvDoFKVEHhmR0dufAqXGX =6iRg -----END PGP SIGNATURE----- --11Y7aswkeuHtSBEs--