wiki: Porting wiki: Porting Chat Log

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>

1 files changed, 309 insertions, 0 deletions

diff --git a/wiki/Chat_log/20170201-mm-chatlog b/wiki/Chat_log/20170201-mm-chatlog
new file mode 100644
index 0000000..55ccf83
--- /dev/null
+++ b/wiki/Chat_log/20170201-mm-chatlog
@@ -0,0 +1,309 @@
+Multimedia-chat-meeting-2017-02-01
+
+09:07 < pinchartl> topics for today
+09:07 < pinchartl> - status update
+09:07 < geertu> pinchartl: I think Magnus is in a train (with WiFi ;-)
+09:07 < pinchartl> - ELC meeting
+09:07 < pinchartl> - VIN plans
+09:07 < pinchartl> anything else ?
+09:07 < neg> not from me
+09:08 < pinchartl> (there's also "breakfast at le pain quotidien in brussels" but I think that's just for me today :-))
+09:08 < kbingham> pinchartl: We'll add that to tomorrows agenda
+09:08 < kbingham> :D
+09:09 < pinchartl> :-)
+09:09 < pinchartl> Topic 1. Status check for the multimedia tasks
+09:09 < pinchartl> Kieran, as you're time constrained, you can start
+09:09 < kbingham> Things I've done:
+09:09 < kbingham> I've been working on the scaler partition algorithm, and spent some time better understanding the scaler algorithms. I've also worked through the 'pseudo code' from Renesas, and made this compile so I could better understand each of it's actions.
+09:09 < kbingham> From this I've added phase calculation into the UDS entity, and I'm trying to rework the algorithm so that each entity "controls it's own fate" and performs it's part of the algorithm. (WPF determines output windows, UDS determines scaling factors, RPF determines source chroma recovery). To achieve needs per partition cropping on each entity - something to talk about F2F later today/tomorrow :D
+09:10 < kbingham> Next: FOSDEM, and I'm hoping to get a last minute snowboarding holiday in the school half-term with Keri (13-17th), and more work on PA, and VSP-tests.
+09:10 < kbingham> Blockers - only that I want to go through partition algorithm design with Laurent, which is conveniently possible in the next couple of days.
+09:10 < kbingham> (pre-written due to time constraints :D )
+09:11 < kbingham> EOT
+09:11 -!- morimoto [~user@relprex1.renesas.com] has joined #periperi
+09:11 < pinchartl> thank you
+09:11 < pinchartl> hello Morimoto-san
+09:11 < morimoto> Hi
+09:11 < pinchartl> we have just started with Kieran's update
+09:11 < morimoto> Oops ? already started ??
+09:12 < kbingham> morimoto: my fault-  I have a plane to catch :D
+09:12 < pinchartl> has Japan moved its time zone by 15 minutes without any notice ? :-)
+09:13 < morimoto> I'm booking today's meeting started from 17:30, now Japan is 17:10
+09:13 < pinchartl> I think I've sent the invitation starting from 17:00
+09:13 < pinchartl> but no worries, you're here :-)
+09:13 < pinchartl> I'll go next to give you a bit of time to prepare
+09:13 < morimoto> Grr, sorry about that
+09:13 < pinchartl> since last meeting
+09:14 < pinchartl> I've continued advancing the HDMI output driver towards merging
+09:14 < pinchartl> there's few blockers left
+09:14 < pinchartl> Neil Armstrong from BayLibre has submitted a patch series to prepare the dw-hdmi driver to be used in Amlogic SoCs. Discussions on how to integrate both patch series are complete.
+09:14 < pinchartl> but it means a bit more work for me as they need to decouple PHy handling completely
+09:14 < pinchartl> (because they use an external PHY)
+09:15 < pinchartl> I mean a vendor PHY
+09:15 < pinchartl> I've also had a meeting in Oslo with Hans Verkuil and Sakari Ailus about V4L2 and media controller race conditions
+09:16 < pinchartl> with a whole day preparation meeting in Helsinki with Sakari the day before
+09:16 < pinchartl> the meetings went well, we agreed on the way forward, and Sakari has posted a summary to the linux-media mailing list
+09:16 < pinchartl> (http://www.spinics.net/lists/linux-media/msg110310.html)
+09:16 < pinchartl> the next step is to convince Mauro
+09:16 < pinchartl> it looks pretty good so far
+09:17 < pinchartl> he has pushed back a bit oon a few points
+09:17 < pinchartl> but nothing too bad
+09:17 < pinchartl> and Hans is on our side
+09:17 < pinchartl> and finally I had holidays last week
+09:17 < morimoto> Enjoyed sky ?
+09:17 < pinchartl> very much :-)
+09:18 < morimoto> good :)
+09:18 < pinchartl> oh, I also had a long discussion about how to move forward with the V4L2 metadata API, needed for histogram support in the VSP driver
+09:18 < pinchartl> for the next two weeks
+09:18 < pinchartl> - FOSDEM
+09:18 < pinchartl> - ELC preparation
+09:19 < pinchartl> - Gen3 HDMI output
+09:19 < pinchartl> - patch review
+09:19 < pinchartl> no issue or blocker
+09:19 < pinchartl> that's it for me
+09:19 < pinchartl> neg: can you go next ?
+09:19 < neg> sure
+09:19 < neg> A) Posted a few VIN and CSI-2 series (see status mail for list) and partaken in discussions about adding multiple subchannels for VIN/CSI-2 on Gen3
+09:20 < neg> B) Attend FOSDEM and talk about VIN issues with Laurent and monitor feed back to patches posted in A as one of the blocks work for IO group
+09:20 < neg> C) Wishihg to get feedback on how to speed up VIN/CSI-2 patch acceptence rate :-)
+09:20 < neg> EOT
+09:21 < pinchartl> morimoto: VIN is a topic of this meeting, we'll get to it right after you
+09:21 < pinchartl> neg: thank you
+09:21 < morimoto> pinchartl: thanks
+09:22 < pinchartl> morimoto: your turn
+09:22 < morimoto> A. Since last time
+09:22 < morimoto> I talked with Rob (= OF-graph maintainer) and ML people about ALSA SoC OF-graph DT bindings, and almost OK I believe.
+09:22 < morimoto> I posted OF-graph ALSA SoC support patch-set this week.
+09:22 < morimoto> I noticed we can solve HDMI sound port detection issue of OF-graph if we have new ALSA SoC function (before I produced "type=sound" property for it. Laurent indicated media-controller for it). I implemented it, and it works.
+09:22 < morimoto> I got few BSP team request for you guys ;)
+09:22 < morimoto> B. Until next time
+09:23 < morimoto> I will post HDMI sound patch-set if OF-graph patch-set was accepted.
+09:23 < morimoto> And paper work for MAX Camera
+09:23 < morimoto> C. Blockers
+09:23 < morimoto> There is no response from Rob
+09:23 < morimoto> CSI2 camera export needs Happy lovely paper work
+09:23 < morimoto> --EOF--
+09:23 < morimoto> About MAX Camera, BSP team want to have this support until 3/E, maybe this is not realistic ?
+09:23 < morimoto> Export paper work takes more time, and no develop time for you guys :(
+09:23 < morimoto> And this MAX Camera will be rental, we need to back it to BSP team.
+09:23 < morimoto> So, my plan is we will buy it.
+09:24 < morimoto> But, it seems buying will takes time
+09:24 < morimoto> some plan we have
+09:24 < morimoto> 1)
+09:24 < morimoto> send rental camera to you guys
+09:25 < morimoto> and Renesas buy it in parallel
+09:25 < morimoto> And someday, we will switch
+09:25 < morimoto> or
+09:25 < morimoto> 2)
+09:25 < morimoto> I will ask you guys to buy it from Europa
+09:25 < pinchartl> thank youcan it be bought easily ? do you know what the lead time is ?
+09:25 < morimoto> but, 2) is not good for time limit
+09:26 < morimoto> Acorrding to HW guys, if you buy it today, you can get it 3/E
+09:26 < pinchartl> :-)
+09:26 < morimoto> Now we are considering about it
+09:26 < morimoto> Ahh
+09:27 < pinchartl> I'm fine with that, but I suppose the BSP team iisn't :-)
+09:27 < morimoto> about MAX chip datasheet, it is under NDA
+09:27 < morimoto> We are solving export paper work
+09:28 < pinchartl> can we get the MAX9286 datasheet under NDA ?
+09:28 < morimoto> pinchartl: if we can avoid BSP team's time limit, can I ask you buy it from Europe ?
+09:28 < morimoto> We will get more detail. URL, cost, serial number etc...
+09:29 < pinchartl> morimoto: sure, assuming that Maxim will sell it to us (as the documentation is under NDA there could also be restrictions on buying the hardware)
+09:29 < morimoto> pinchartl: about MAX datasheet, yes, we can get it nunder NDA. we need more detail infromation from HW guys.
+09:30 < morimoto> It needs additional board + camera. camera is very generic. no problem
+09:30 < pinchartl> if you tell us what to buy we can certainly buy it, no problem with that
+09:31 < morimoto> but, board is R-Car special. We need special interface guy (?)
+09:31 < morimoto> pinchartl: yes, thanks
+09:31 < morimoto> We are now planing how to solve this issue.
+09:31 < morimoto> thats it from me
+09:32 < pinchartl> the interface board is a custom PCB from Renesas, right ?
+09:32 < morimoto> maybe, I don't know detail yet
+09:33 < pinchartl> I would assume so
+09:33 < pinchartl> we will need that PCB
+09:33 < pinchartl> when do you expect to have information on what is needed ?
+09:34 < morimoto> Now, HW guys is collecting information
+09:34 < morimoto> BSP team -> HW guys -> ???
+09:34 < morimoto> I don't know how long
+09:35 < pinchartl> ok
+09:35 < pinchartl> we *could* try to get different hardware to work on
+09:35 < pinchartl> but I think it will take longer
+09:35 < pinchartl> as we would likely have to develop an interface PCB anyway
+09:35 < morimoto> I guess is this related to 2nd Q1 SoW ?
+09:36 < neg> If there is a upstream driver for a CSI-2 transmitter that supports multiple channels that might still be less time to develop a interface PCB
+09:36 < morimoto> If so, when do you need it for Q1 2nd SoW ?
+09:37 < morimoto> I guess, we can collect many information this and next week (?)
+09:37 < morimoto> And start export paper work +1 or +2 weeks
+09:38 < morimoto> And ship it to Europe, it take 1 week ?
+09:38 < morimoto> this is *BEST* case
+09:38 < pinchartl> this brings us to the next topic, VIN/CSI-2 planning :-)
+09:38 < pinchartl> I don't think 3/E is a reasonable target
+09:38 < morimoto> Hmm.. yes
+09:38 < pinchartl> as Niklas explained in his last e-mail, there is lots of work needed
+09:38 < morimoto> Yes, yes, I know
+09:38 < pinchartl> we could possibly produce a prototype by 3/E
+09:38 < pinchartl> *if* we can assign enough developers on this
+09:39 < morimoto> without HW ?
+09:39 < pinchartl> Niklas (unless that has changed) works 50% for Renesas
+09:39 < pinchartl> (25% for the base contract and 25% for the additional tasks)
+09:39 < pinchartl> that's now enough time until 3/E to implement a solution
+09:39 < pinchartl> no, with hardware
+09:39 < morimoto> OK
+09:39 < pinchartl> hardware isn't needed at the very beginning
+09:39 < pinchartl> but we'll need it for testing
+09:40 < morimoto> and remote machine is not enough ?
+09:40 < pinchartl> it depends on the hardware, whether it can be controlled remotely
+09:40 < pinchartl> I don't expect things to work out of the box
+09:40 < pinchartl> remote access has a high latency
+09:40 < morimoto> OK
+09:41 < pinchartl> 5 minutes to boot a new kernel
+09:41 < morimoto> Ahh, not good
+09:41 < pinchartl> as we'll need lots of tests to debug the code, that would slow things up
+09:41 < morimoto> I will do my best for you guy ;)
+09:41 < pinchartl> I mean slow things down :-)
+09:41 < pinchartl> thank you
+09:41 < pinchartl> another thing
+09:41 < neg> thank you :-)
+09:42 < pinchartl> as I said, producing a prototype for 3/E requires lots of work
+09:42 < pinchartl> Niklas won't have enough time alone
+09:42 < pinchartl> so we'll need to work together
+09:42 < pinchartl> Kieran and I can help
+09:42 < pinchartl> but then we won't have enough time to solve the VSP/DU flicker issues
+09:42 < morimoto> I think BSP team's planning is already broken. So I can tell it to them
+09:43 < pinchartl> they have to pick the priority
+09:43 < pinchartl> the second half of Q2 is one month
+09:43 < pinchartl> 20 days
+09:43 < pinchartl> as Niklas is assigned to Renesas at 50%, that's 10 days for him
+09:43 < pinchartl> 5 days of base task, 5 days of additional task
+09:44 < pinchartl> it makes no sense to split that between VIN and something else
+09:44 < pinchartl> so if we need to focus on VIN, I'd like Niklas to spend all his time on VIN in the second batch of Q1, and in Q2
+09:44 < pinchartl> otherwise we won't move forward if we split this in 5 days tasks here and there
+09:45 < pinchartl> another thing
+09:45 < pinchartl> if we assign enough developers to this 3/E might be possible for a prototype
+09:45 < pinchartl> *but*
+09:45 < pinchartl> it really means 3/E
+09:45 < pinchartl> we can't do it for 3/M
+09:45 < pinchartl> which is when Jinzai expects reports
+09:46 < pinchartl> in that case I'll want to send reports at 3/E
+09:46 < pinchartl> as spending time on reports for 3/M while we rush to finish the code for 3/E makes absolutely no sense
+09:47 < morimoto> I guess we can avoid 3/E limitation for VIN for now. And I think I need to talk to my Boss about Niklas time ?
+09:47 < pinchartl> and to Niklas and Magnus too I assume :-)
+09:47 < morimoto> Ahh yes. ELC is good time for it ?
+09:47 < morimoto> Oops, too late ?
+09:47 < pinchartl> it depends on the priorities :-)
+09:48 < pinchartl> if the BSP team thinks this is the highest priority and we need to start working on it immediately, then ELC is late
+09:48 < pinchartl> if we can have a delay, it's fine
+09:49 < pinchartl> my point is that, if Niklas has 15 days of base task and and 15 days or additional tasks per quarter, it makes no sense to split that between multiple tasks for multiple groups if VIN is the focus
+09:49 < pinchartl> otherwise the task scheduler overhead will be too high :-)
+09:49 < pinchartl> neg: please feel free to chime in as we're talking about you :-)
+09:49 < neg> :-)
+09:49 < morimoto> BSP team 3/E request today is Fence, DU init order fixup, suspend/resume bug fix
+09:50 < morimoto> VIN was requested, but it is too late
+09:50 < pinchartl> given the amount of work for VIN, splitting the work in 5 or 10 days tasks spread over 6 months doesn't make sense to me. it should be grouped
+09:50 < pinchartl> morimoto: I think that's a more reasonable plan
+09:50 < neg> I agree with what you are saygin, I can't do this by my self we need to coalaborate and it make sens for me to focus mor then 1/3 of my time on this as I do now for multimedia tasks
+09:51 < morimoto> OK, I hope we can talk this F2F on ELC. I will correct information etc for it
+09:52 < morimoto> BSP plan, budgetcl
+09:52 < neg> pinchartl: do you know if Sakari will be at FOSDEM or ELC?
+09:52 < pinchartl> sure, we'll certainly talk about it at ELC
+09:52 < pinchartl> neg: he will unfortunately not attend either :-(
+09:53 < pinchartl> neg: how about spending a day or two in Helsinki ?
+09:53 < neg> Hum maybe it would make sens for me to fly to Helsinki and meet both of you and talk F2F about his current work on subchannels and if we can colaborate forward?
+09:53 < pinchartl> :-)
+09:54 < pinchartl> morimoto: do you think we could get budget for Niklas to spend two days in Helsinki ? Stockholm-Helsinki is a very short flight, it will be cheap
+09:54 < morimoto> for FOSDEM ? or meeting ?
+09:54 < pinchartl> for meeting with me and Sakari Ialus in Helsinki
+09:54 < pinchartl> Sakari works for Intel
+09:55 < morimoto> OK, please wait
+09:55 < pinchartl> and has started working on a V4L2 API for multiple virtual channels
+09:55 < pinchartl> if we can spend one or two days with him face to face it would help a lot
+09:55 < pinchartl> but he won't attend the FOSDEM or ELC
+09:55 < pinchartl> so Niklas could fly to Helsinki, that's very close
+09:56 < pinchartl> and Sakari can likely host a meeting at the Intel office there
+09:56 < morimoto> pinchartl: neg: we can get OK from our boss v(^-^)v
+09:56 < pinchartl> we're talking about a few hundred euros to save weeks of e-mail discussions, I think it's worth it :-)
+09:57 < pinchartl> that will be after the FOSDEM anyway, so we have a bit of time
+09:58 < morimoto> FOSDEM -> Helsinki -> ELC. business-man !!
+09:58 < neg> It's a hard life :-)
+09:59 < pinchartl> neg: seriously, spending all your time in planes *is* a hard life
+09:59 < pinchartl> I think that's it for the VIN discussion for today, we'll talk more about it face to face in Brussels
+09:59 < pinchartl> and this brings us to the next topic, FOSDEM preparation
+09:59 < pinchartl> neg: you will arrive on Thursday evening, right ?
+09:59 < neg> yes
+10:00 < pinchartl> I wonder when we should schedule time for face to face dicussions
+10:00 < pinchartl> Friday will be busy with core and I/O
+10:00 < pinchartl> maybe Thursday evening ?
+10:00 < neg> arrive 17:20 and hope I can make it to my hotell by 18:30 I think it should be doable
+10:01 < pinchartl> we can either have a late dinner, or talk during/after dinner
+10:01 < neg> so any time between that and sunday evening works for me except ofc for periperi meetings during Friday
+10:02 < neg> Thursday evening works, maybe it's good to have it before/after dinner so I can make notes
+10:02 < pinchartl> how about having dinner at 19:00 and discuss after that ?
+10:02 < pinchartl> we can talk about planning and other less technical topics during dinner
+10:02 < neg> yes sounds like a good plan
+10:02 < pinchartl> and move the technical parts after dinner
+10:03 < pinchartl> OK, I'll book a table for 19:00 then
+10:03 < pinchartl> for 5 of us
+10:03 < neg> nice, at what location?
+10:04 < pinchartl> I don't know yet, I'll sort it out today
+10:04 < neg> ahh nice, thanks for arraigning it
+10:05 < pinchartl> you're welcome
+10:05 < pinchartl> next topics, ELC
+10:05 < pinchartl> there will be no V4L2 meeting at ELC
+10:06 < pinchartl> so Monday and Friday are free
+10:06 < pinchartl> I this propose having a multimedia meeting on Monday
+10:06 < morimoto> Nice for me
+10:06 < neg> works for me
+10:07 < pinchartl> I assume it will owrk for Magnus too
+10:07 < morimoto> I and Magnus will arrive there at 17th
+10:07 < pinchartl> Ulrich and Kieran don't plan to attend ELC as far as I know
+10:07 < pinchartl> but it could be possible to change their minds
+10:07 < pinchartl> (assuming we can get budget)
+10:08 < morimoto> about budget, maybe no problem.
+10:10 < pinchartl> :-)
+10:10 < pinchartl> last topic then, next meeting
+10:10 < pinchartl> I propose two weeks from now
+10:10 < pinchartl> February the 15th
+10:10 < pinchartl> same time as today (that's 17:00 JST ;-))
+10:10 < morimoto> Oops, Feb 15th doesn't work for me
+10:11 < pinchartl> how about the 14th or the 16th ?
+10:11 < morimoto> both 14th, 16th are OK
+10:11 < neg> both works for me
+10:11 < pinchartl> when is the next core group chat planned ?
+10:12 < geertu> pinchartl: Feb 14th?
+10:12 < geertu> Feb21 is ELC
+10:13 < geertu> Or we can skip directly to Feb 28 :-)
+10:13 < morimoto> 28 is OK for me :)
+10:13 < pinchartl> it doesn't make much sense to have a multimedia meeting on the 16th and another one at ELC on the 20th
+10:13 < pinchartl> should we skip to the 20th directly ?
+10:14 < neg> works for me, how do that allign for kbingham and uli time zone wise?
+10:14 < morimoto> Do you mean skip 20th meeting on America ?
+10:14 < pinchartl> morimoto: yes
+10:15 < morimoto> Oops, it is not good for me. I need to report about it :(
+10:15 < geertu> "skip to" != "skip"
+10:15 < pinchartl> morimoto: no sorry
+10:15 < pinchartl> I meant skipping the meeting on the 16th
+10:15 < geertu> neg: same time difference as JP vs EU
+10:15 < morimoto> Ah, next meeting *is* 20th ?
+10:15 < pinchartl> skipping to the 20th means skipping the 16th and going directly to the 20th
+10:16 < pinchartl> there will be one face to face meeting on the 20th
+10:16 < morimoto> OK, thanks. it is very good for me :)
+10:16 < pinchartl> so I propose skipping the one on the 16th, it makes little sense to have two meetings just a few days apart
+10:16 < pinchartl> let's do that then
+10:17 < pinchartl> morimoto: you will arrive on the 17th, right ?
+10:17 < morimoto> Yes
+10:17 < pinchartl> neg: how about you ?
+10:17 < pinchartl> morimoto: and when will you leave ?
+10:17 < neg> 19th
+10:17 < morimoto> 24th
+10:17 < morimoto> with Magnus
+10:18 < pinchartl> neg: same question, when will you leave ?
+10:18 < neg> 25th :-)
+10:18 < pinchartl> morimoto: does Magnus arrive on the 17th too ?
+10:18 < morimoto> Yes. same plane
+10:18 < pinchartl> :-)
+10:19 < pinchartl> I think that's it for today
+10:19 < pinchartl> I propose adjourning the meeting
+10:19 < pinchartl> does anyone second ?
+10:19 < neg> seconded
+10:19 < morimoto> 2nd !
+10:20 < pinchartl> meeting adjourned
+10:20 < pinchartl> thank you all for attending