From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thierry Reding Subject: Re: [PATCH 0/6] ARM: s3cxxxx: Use PWM lookup table Date: Tue, 6 Oct 2015 10:43:04 +0200 Message-ID: <20151006084304.GA22087@ulmo.nvidia.com> References: <1444049237-29878-1-git-send-email-thierry.reding@gmail.com> <561315C2.9040506@samsung.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="huq684BweRXVnRxX" Return-path: Received: from mail-pa0-f44.google.com ([209.85.220.44]:35470 "EHLO mail-pa0-f44.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751248AbbJFInI (ORCPT ); Tue, 6 Oct 2015 04:43:08 -0400 Received: by pacfv12 with SMTP id fv12so208203406pac.2 for ; Tue, 06 Oct 2015 01:43:07 -0700 (PDT) Content-Disposition: inline In-Reply-To: <561315C2.9040506@samsung.com> Sender: linux-samsung-soc-owner@vger.kernel.org List-Id: linux-samsung-soc@vger.kernel.org To: Krzysztof Kozlowski Cc: Kukjin Kim , linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org --huq684BweRXVnRxX Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Oct 06, 2015 at 09:28:50AM +0900, Krzysztof Kozlowski wrote: > On 05.10.2015 21:47, Thierry Reding wrote: > > Back when the PWM framework was introduced the concept of PWM lookup > > tables was added to allow board code to register a table of PWM devices > > and their association with consumers. The goal is to allow drivers to > > use a unified method to request PWM devices. At the same time, since no > > boards were exposing these tables, fallback code was kept in drivers to > > allow old code to remain functional. In order to get rid of the legacy > > fallback code, legacy users need to be updated to register PWM lookup > > tables. > >=20 > > This series converts all s3c24xx and s3c64xx boards that hook up a pwm- > > backlight device to use the new PWM lookup tables. All patches have been > > compile-tested, but I don't have access to any of these boards, so I > > couldn't verify that they really work. >=20 > Unfortunately I can't verify them neither. I don't have these boards. In > that case I would prefer approach "if it ain't broken, don't touch > it"... unless someone tests the patches of course. Backlight on these boards is likely to be currently broken anyway. In fact this series is part of an effort to restore backlight support for these legacy boards (I sent out a similar series for PXA boards). We're going to need to have this series merged so that we can remove the legacy code that's being a lot of trouble maintaining. If this series ends up breaking anything, I'd be happy to help fix things up. Thierry --huq684BweRXVnRxX Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAABCAAGBQJWE4mVAAoJEN0jrNd/PrOhERwP/3GMtdMrw055GiJ9laC+r5Pi 1Fhe9LMGoXa+t/UqbKQikrMoL1MRE/lz6+QpQKGByHJKdbh9Lc8iqHrcGFpvVDe+ FR6l6Qh1gUQoEF/Z4vL2oqS2k++HOquH5JJ7N5pEIM0r107YfrNAsEqbD8ylU7gP 4Xzxzoc1RIGAkls4tE/mItZI+vRqdBBFU9uhbEkV3fLJc+mcXglLJ1mJAcOfPSNr 1NTGa/Bkez5IbkH7U8BGBD/2p98twH4Ml/ll9Am/5PpKXFwelPKKL+pc5ic0sn3/ aumFmPKEVOjRPPRDwQFLFl6Zb/kjO1roPMRCADCbeOxGJ5OOyzPp2H7M3NzsGTdS bbFtfBMAnlMjI/SEX3fUadySQpO98u8tmOq/fZDJLnAf16LiWaL1iAX7Fk2iGuch FdgZ8vZpX0L3WfCIxoulYwQ8cj8LjTOpR6ZiDxw5QooqcE8G/7VFitWuSY8SdibJ BVgfhkaIjOXY9QCLUNT1MLilmWizrB1SIjk2Iz1xmM/NTdA3yrIMdk+uoEUapKl1 GI8uCzK6vAmC8799TwVL541+L1YrjuniBK/BXYis/FNPhJw/MHvXt+hXeugThHar JmaTbgphdT0vpU4QMS4T4A+XOzOaS5XTYFrjDpAkfCOpNNqALgPg2XevGiR7oPsk 3EG1ANpyeqXzDvvKbzg9 =n4zE -----END PGP SIGNATURE----- --huq684BweRXVnRxX-- From mboxrd@z Thu Jan 1 00:00:00 1970 From: thierry.reding@gmail.com (Thierry Reding) Date: Tue, 6 Oct 2015 10:43:04 +0200 Subject: [PATCH 0/6] ARM: s3cxxxx: Use PWM lookup table In-Reply-To: <561315C2.9040506@samsung.com> References: <1444049237-29878-1-git-send-email-thierry.reding@gmail.com> <561315C2.9040506@samsung.com> Message-ID: <20151006084304.GA22087@ulmo.nvidia.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Tue, Oct 06, 2015 at 09:28:50AM +0900, Krzysztof Kozlowski wrote: > On 05.10.2015 21:47, Thierry Reding wrote: > > Back when the PWM framework was introduced the concept of PWM lookup > > tables was added to allow board code to register a table of PWM devices > > and their association with consumers. The goal is to allow drivers to > > use a unified method to request PWM devices. At the same time, since no > > boards were exposing these tables, fallback code was kept in drivers to > > allow old code to remain functional. In order to get rid of the legacy > > fallback code, legacy users need to be updated to register PWM lookup > > tables. > > > > This series converts all s3c24xx and s3c64xx boards that hook up a pwm- > > backlight device to use the new PWM lookup tables. All patches have been > > compile-tested, but I don't have access to any of these boards, so I > > couldn't verify that they really work. > > Unfortunately I can't verify them neither. I don't have these boards. In > that case I would prefer approach "if it ain't broken, don't touch > it"... unless someone tests the patches of course. Backlight on these boards is likely to be currently broken anyway. In fact this series is part of an effort to restore backlight support for these legacy boards (I sent out a similar series for PXA boards). We're going to need to have this series merged so that we can remove the legacy code that's being a lot of trouble maintaining. If this series ends up breaking anything, I'd be happy to help fix things up. Thierry -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 819 bytes Desc: not available URL: