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X-OriginatorOrg: synopsys.com X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191114_061748_982309_3B95BFA6 X-CRM114-Status: GOOD ( 22.37 ) X-BeenThere: linux-i3c@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux I3C List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Przemyslaw Gaj , "linux-i3c@lists.infradead.org" , "bbrezillon@kernel.org" Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-i3c" Errors-To: linux-i3c-bounces+linux-i3c=archiver.kernel.org@lists.infradead.org From: Boris Brezillon Date: Thu, Nov 14, 2019 at 12:32:14 > Hi Vitor, > > On Thu, 14 Nov 2019 11:56:00 +0000 > Vitor Soares wrote: > > > Hi, > > > > From: Przemyslaw Gaj > > Date: Thu, Nov 14, 2019 at 06:10:12 > > > > > Hi Vitor, > > > > > > The 11/12/2019 08:41, Boris Brezillon wrote: > > > > > > > > Hi Vitor, > > > > > > > > On Mon, 11 Nov 2019 12:30:45 +0000 > > > > Vitor Soares wrote: > > > > > > > > > Hi Boris and Przemek, > > > > > > > > > > I have a working version for tests purposes. Yet, I have some basic TODOS > > > > > to address during the takeover of the bus. > > > > > > > > Okay. Would you mind sharing a branch with this material so Przemek and > > > > I can have a look at it? > > > > > > So, Vitor, can you share your changes? Can you tell me what you had to > > > change to make it work? Also, which patch version is this based on? > > > > I'm closing a task and after that I will prepare the RFC. > > Okay, can we have an estimate? Are we talking about days or weeks? I will prioritize it for next week. > > > > > I based in all version and tried to pass everything to master.c file. > > I'm not sure what that means, but okay. > > > Right now my challenge it to trigger mastership request when a device > > driver want to access to the bus but I believe we can discuss that after. > > That's kind of a basic feature when talking about mastership handover, > but sure, we can discuss it after your RFC has been posted. I need to test if the time that device.c request the mastership and the controller has effectively the ownership of the bus is short enough to call i3c_dev_do_priv_xfers_locked(dev->desc, xfers, nxfers) before of all housekeeping of bus takeover. > > Note that I'm not super happy to have to go back to square 1 and throw > away all of the work done by Przemek, especially since Przemek was the > first one to post a patchset and he never really said he didn't > want or didn't have time to continue working on this task (not even > mentioning the time I spent reviewing those patches...). > > If Przemek is fine with this situation I'm okay making an exception, > but be aware that it's not how we usually do: the person that posts a > patchset first leads the thing (of course, it's even better if there's > some kind of coordination before the patch is posted). Honestly it looks like I'm competing on this which is not the case. I just pointed out my concerns about this adoption because I see several issues on it. The point is, at the end you can pick some parts of my sec master code and integrate in your solution. As I said previous for I3C spec 1.1 secondary master received a big improvement due the misunderstanding published in 1.0 spec. I don't know any other protocol that implement such kind of feature and for this is from far the most complex feature to implement in SO based systems from i3c spec. > > BTW, you mentioned working on a lot of different topics, but most of > them were left unfinished (userspace i3cdev interface, I3C slave > framework/API, ...). The i3cdev does what we discuss during the proposal of i3c subsystem and only expose i3c device without device driver yet I'm not happy with transfer struct. For the tools I have for hdr and sdr transfers, for now I didn't feel the need of a tool for ccc (but for testing purposes it would help a lot). > Any plans to post RFCs on those aspects anytime > soon? I mean, there's plenty of topics to work on, and I'd really prefer > that each developer work on a different topic instead of duplicating the > effort... > > Regards, > > Boris Best regards, Vitor Soares _______________________________________________ linux-i3c mailing list linux-i3c@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-i3c