From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christian Lamparter Subject: Re: [PATCH v2] pinctrl: msm: fix gpio-hog related boot issues Date: Thu, 03 May 2018 19:43:37 +0200 Message-ID: <2265923.XhyVMjVhWR@debian64> References: <20180402121005.10080-1-chunkeey@gmail.com> <3524410.JrO1DEFpQ1@debian64> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org To: Linus Walleij Cc: David Brown , Stephen Warren , linux-arm-msm@vger.kernel.org, Bjorn Andersson , "open list:GPIO SUBSYSTEM" , Laxman Dewangan , Sven Eckelmann , Andy Gross , Linux ARM List-Id: linux-gpio@vger.kernel.org On Mittwoch, 2. Mai 2018 14:14:39 CEST Linus Walleij wrote: > On Thu, Apr 26, 2018 at 11:47 PM, Christian Lamparter > wrote: > > On Thu, Apr 26, 2018 11:12:21 CEST Linus Walleij wrote: > > >> I think I replied in some other mail that I think we need to > >> be backwards compatible and it's not too hard to do > >> both. (Correct me if I'm wrong.) > > > > I think so too, I looked around and found that the nvidia pinctrl was > > doing something similar with of_find_property(): > > > > | has_prop = of_find_property(np, "gpio-ranges", NULL); > > > > However this looks kinda funny, since "has_prob" is declared as a bool > > and of_find_property() returns a pointer to a "struct property".... > > Tell you what: If nobody beats me to it, I'll sent a patch for this after > > the pinctrl-msm's gpio-hog has been dealt with. :) > > Yeah the nVidia driver is one of the oldest and also at the time > DT was kind of new. I haven't heard from Stephen for a while > but I bet he will pop up, else check with Laxman, he's got > a good grip on nVidia pinctrl+GPIO as well. All in good time. But first @Bjorn and @Andy or @David can you please look and review v4 "pinctrl: msm: fix gpio-hog related boot issues" Thanks. > > The MR24 craze is mostly over by now. You can still find a few. However > > some listings are now selling them with OpenWrt/LEDE for ~$40. > > > > And obviously, this cycle will continue on, but now with the old wave1 > > 802.11ac gear that gets replaced. In fact this business has spawned > > companies that are actively working on supporting "old" enterprise gear > > via their own OpenWrt/LEDE derivatives. > > Haha that is just awesome :D > I hope they salvage a lot of them. Yes, I'm aware of that some of them where put to good use in the Personal Telco Projec (501(c)(3) non-profit organization in Portland, Oregon): And they have been somewhat vocal about it too: "The MR24 is a dual-band 802.11n 3x3 MIMO access point with a single ethernet port. They are "last-gen" devices, and are starting to show up on ebay at reasonable prices as Meraki's deep-pocket cloud-management enterprise users are beginning to "upgrade" to 802.11ac gear. Note that 802.11n in this case means a fully-open-source driver (ath9k). 802.11ac drivers involve firmware blobs across the board. You don't get super-wide 5GHz channels, but you get freedom. " ;) By the way, it gets even weirder. In the past (and to this day) Meraki has given away their current crop of enterprise APs via their "Free AP for IT Professionals" program. Of course, the main idea probably was to get them all "hooked/sold" on their cloud-management firmware. Because of course that "Free AP" is intended to be only good for the lifespan of included the 3-year license. However, "IT Professionals" do have their own mind and that's why there is some continued interest in making alternative firmwares for these devices. Best Regards, Christian