From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dmitry Torokhov Date: Tue, 31 Jan 2017 09:11:55 +0000 Subject: Re: [PATCH 1/2] gpio: Rename devm_get_gpiod_from_child() Message-Id: <20170131091155.GH8311@dtor-ws> List-Id: References: <1485790909-2915-1-git-send-email-boris.brezillon@free-electrons.com> <1485790909-2915-2-git-send-email-boris.brezillon@free-electrons.com> <20170131010607.GC35974@dtor-ws> <20170131090432.72a1b1b8@bbrezillon> <20170131084447.GD8311@dtor-ws> <20170131100721.22c2388d@bbrezillon> In-Reply-To: <20170131100721.22c2388d@bbrezillon> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Boris Brezillon Cc: Linus Walleij , Alexandre Courbot , linux-gpio@vger.kernel.org, linux-input@vger.kernel.org, Bryan Wu , Richard Purdie , Jacek Anaszewski , linux-leds@vger.kernel.org, Tomi Valkeinen , linux-fbdev@vger.kernel.org, linux-kernel@vger.kernel.org, Russell King On Tue, Jan 31, 2017 at 10:07:21AM +0100, Boris Brezillon wrote: > On Tue, 31 Jan 2017 00:44:47 -0800 > Dmitry Torokhov wrote: > > > On Tue, Jan 31, 2017 at 09:04:32AM +0100, Boris Brezillon wrote: > > > On Mon, 30 Jan 2017 17:06:07 -0800 > > > Dmitry Torokhov wrote: > > > > > > > On Mon, Jan 30, 2017 at 04:41:48PM +0100, Boris Brezillon wrote: > > > > > Rename devm_get_gpiod_from_child() into > > > > > devm_fwnode_get_gpiod_from_child() to reflect the fact that this > > > > > function is operating on a fwnode object. > > > > > > > > I believe this is completely pointless rename. Are you planning on > > > > adding devm_of_get_gpiod_from_child()? Or > > > > devm_acpt_get_gpiod_from_child()? (I sure hope not). > > > > > > Of course not. > > > > > > > > > > > Also, on what object? Does it take fwnode as first argument? Or maybe we > > > > should call it devm_dev_const_charp_fwnode_get_gpiod_from_child() so we > > > > know types of all arguments? > > > > > > Linus suggested to rename this function [1]. I personally don't care > > > much about the name, though I agree with Linus that names should be > > > consistent and descriptive. Moreover, he's the maintainer, and I tend > > > to follow maintainers suggestion when I contribute to a specific > > > subsystem. > > > > OK, I did not know that that was Linus' request, my objection still > > stands. > > > > > > > > IIUC, you're concerned about the length of this function name. If I had > > > to drop something it would be the _from_child() suffix, because the > > > function is not even checking that the child parameter is actually a > > > direct child (or a descendant) of device->fwnode. > > > > OK, that sounds better. Actually, we already have > > fwnode_get_named_gpiod(), unfortunately it does not do suffixes > > permutations. There are also no users, except > > devm_get_gpiod_from_child(). So I would: > > > > - rename fwnode_get_named_gpiod() -> static __fwnode_get_named_gpiod() > > - made new fwnode_get_named_gpiod() that did suffix permutation and > > called __fwnode_get_named_gpiod() (or pulled its implementation > > inline) > > Sorry but I don't follow you. Why do you need > __fwnode_get_named_gpiod(), You do not need it, it will just reduce size of the patch if you use it. I'd be perfectly fine not with having it and have everything in fwnode_get_named_gpiod(). > and what is the suffix permutation you're > mentioning here? devm_get_gpiod_from_child() tries to apply "-gpio" and "-gpios" suffixes to the supplied GPIO ID while current fwnode_get_named_gpiod() takes property name literally. Thanks. -- Dmitry