From mboxrd@z Thu Jan 1 00:00:00 1970 From: Maxime Ripard Subject: Re: Requesting as a GPIO a pin already used through pinctrl Date: Thu, 22 Sep 2016 13:48:52 +0300 Message-ID: <20160922104852.GO8719@lukather> References: <20160916135808.GA17518@lukather> <20160921195128.GG8719@lukather> <20160921203435.GA14965@sysresccd> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="VRppCkiwz5ce4F2G" Return-path: Received: from down.free-electrons.com ([37.187.137.238]:54253 "EHLO mail.free-electrons.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S933276AbcIVKsz (ORCPT ); Thu, 22 Sep 2016 06:48:55 -0400 Content-Disposition: inline In-Reply-To: <20160921203435.GA14965@sysresccd> Sender: linux-gpio-owner@vger.kernel.org List-Id: linux-gpio@vger.kernel.org To: Michael Welling Cc: Linus Walleij , Alexandre Courbot , "linux-gpio@vger.kernel.org" , Alexandre Belloni , Nicolas Ferre , Boris Brezillon --VRppCkiwz5ce4F2G Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Sep 21, 2016 at 03:34:35PM -0500, Michael Welling wrote: > On Wed, Sep 21, 2016 at 10:51:28PM +0300, Maxime Ripard wrote: > > Hi Linus, > >=20 > > Thanks for your reply. > >=20 > > On Sun, Sep 18, 2016 at 01:30:24PM +0200, Linus Walleij wrote: > > > On Fri, Sep 16, 2016 at 3:58 PM, Maxime Ripard > > > wrote: > > >=20 > > > > However, things are getting weird when you have that requested pin > > > > assigned to one device, and you try to export the GPIO on that pin > > > > (through sysfs for example, > > >=20 > > > DON'T use sysfs. Use the new chardev ABI which is by the way enabled > > > by default. > > >=20 > > > (But you will face the same issue there I guess.) > >=20 > > Yeah, well, we could re-do the discussion on ksummit-discuss :) >=20 > Are you guys trolling me? No, the point I was trying to make is that not every system and product kernel out there has been switched to a 4.8+ kernel, for exactly the reasons that are discussed right now on ksummit-discuss. I don't really get how that is trolling. Maxime --=20 Maxime Ripard, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com --VRppCkiwz5ce4F2G Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAEBAgAGBQJX47cUAAoJEBx+YmzsjxAgppUQAKozCBsChiGK/kPsl5Jn3/7z 9ivWUXMWRZcsIQdInW+VD0jLsDWxaeclpdJ5W8L1KA4STdzARW4lhJs6IOkoPZbe 6iYeWG9d0vSRo8UQP73izViD4Ru0SiYOcO3sYJ0Ce7kcmbychpiJmM9MsGTXUW4u pwFLriGB0SrBFYyfxZ9OS8FAxbJHNujDyuo4+OLkGMKe/rTNGqmNyxEa1bfRsypa RcNX0S1fD2VLjN6EKS/A+pxWBe7GaxszUht2CbNK16T2ve9wvNFwLK3oAMKKAWrJ pQbpw7ZLM4XenJ8ZGsxPz0hCqsnokX/0PCT+plVa4jisC9E6KHnTEY25f50Dde2T t1NzjYqD8OTX7MXK2mlJ0UxliZG3Uf4FbU8JGTOl++jE0WvWnzWNT6WMpke3aWr/ lhrEQ4FDKlnagkwF/72EtBLiTX4kQYgrI+PI8gi+rk6MFig9Uj2Rn9QtIgdbW23Y DQ9p2KQFdpagl/L97Rmx8HJ+BOkN0jhBHQLy2hofD4x5t2fLrpCzBioAyy8wfkOO tsIprywNiPRa0CUuhqE+Ka/WLZZAgEylSva+IKBOG1eLxzmY1zpET/7IUuCgE/1O ahbTxbtYdWrJSkna0Yd5S1EcCpyRmfGxtgQNrLYTzxkbc4aGavw1HK6B1b+yxAug jG7thqHlvaLuB2IJODSn =0y7y -----END PGP SIGNATURE----- --VRppCkiwz5ce4F2G--