wiki: Porting wiki: Porting Chat Log

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

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+Core-chat-meeting-2017-07-20
+
+11:01 < geertu> Welcome to today's Core Group meeting!
+11:01 < geertu> Agenda:
+11:01 < geertu> 1. Status updates
+11:01 < geertu> 2. Discussion Topics
+11:01 < geertu> Topic 1. Status updates
+11:01 < geertu> A) What have I done since last time
+11:02 < geertu> B) What I plan to do till next time
+11:02 < geertu> C) Problems I have currently
+11:02 < geertu> First is Morimoto-san
+11:02 [Users #periperi]
+11:02 [ dammsan] [ kbingham   ] [ marex-cloud] [ neg      ] 
+11:02 [ geertu ] [ kbingham[m]] [ morimoto   ] [ pinchartl] 
+11:02 [ jmondi ] [ Marex      ] [ mturquette ] [ uli___   ] 
+11:02 -!- Irssi: #periperi: Total of 12 nicks [0 ops, 0 halfops, 0 voices, 12 normal]
+11:03 < morimoto> OK
+11:03 < morimoto> A)=B)=C)= NULL, sir
+11:03 < geertu> Thank you, Morimoto-san!
+11:03 < geertu> Next is Niklas
+11:04 < neg> A)
+11:04 < neg>     - No Core tasks.
+11:04 < neg> B)
+11:04 < neg>     - No Core tasks planed.
+11:04 < neg> C)
+11:04 < neg>     - No Core problems.
+11:04 < neg> --EOT--
+11:04 < geertu> Thank you, Niklas!
+11:04 < geertu> Next is Geert
+11:04 < geertu> A)
+11:05 < geertu>   - V2 of CNTVOFF initialization and SMP for R-Car E2
+11:05 < geertu>   - Playing with r8a77995/draak
+11:05 < geertu> B)
+11:05 < geertu>   - Publish CPG/MSSR for R-Car D3 after checking against datasheet rev. 0.55E
+11:05 < geertu>   - Holidays
+11:05 < geertu>   - Publich v2 of CPG/MSSR DT for R-Car Gen2
+11:05 < geertu>   - Suspend/resume for PFC
+11:05 < geertu>   - Mark periupport priority < H commits that are in linux-next
+11:05 < geertu> C)
+11:05 < geertu>   - None
+11:05 < geertu> D)
+11:05 < geertu>   - [PATCH] ARM: shmobile: rcar-gen2: Fix deadlock in regulator quirk
+11:05 < geertu>     Needed to boot v4.13-rc1 on cold lager, koelsch, and gose!!!
+11:06 < geertu> --EOT--
+11:06 < geertu> Next is Magnus
+11:07 < dammsan> as per email
+11:08 < geertu> A)
+11:08 < geertu>     - Flashed and hooked up D3 Draak for remote access
+11:08 < geertu>     - Updated and posted IPMMU cleanup series
+11:08 < geertu>       [PATCH v2 00/05] iommu/ipmmu-vmsa: 32-bit ARM update V2
+11:08 < geertu> B)
+11:08 < geertu>     - Update IPMMU Gen3 patches
+11:08 < geertu>     - Consider sysfs interface for IPMMU driver
+11:08 < geertu> C)
+11:08 < geertu>     - None
+11:08 < geertu> (FTR)
+11:08 < geertu> Thank you, Magnus!
+11:08 < dammsan> thx
+11:08 < geertu> Next is Jacopo
+11:09 < pinchartl> quick question, what is the sysfs interface for IPMMU about ?
+11:09 < geertu> Ah, jmondi has left?
+11:09 < morimoto> (borrowing morimoto keyboard)
+11:09 < geertu> Next is Laurent
+11:10 < pinchartl> #!/usr/bin/python
+11:10 < pinchartl> for section in ('A', 'B', 'C'):
+11:10 < pinchartl>         print('%s) None' % section)
+11:10 < morimoto> we need a way to assign devices to IPMMU iova spaces
+11:10 < geertu> python: command not found
+11:11 < morimoto> (says magnus)
+11:11 < geertu> Thank you, Laurent!
+11:11 < geertu> Next is Marek
+11:11 < pinchartl> morimoto: by iova spaces, do you mean the IPMMU TLBs ?
+11:11 < Marex> A) Linux: ROHM PMIC core is in, VC6 6901 is in clk-next
+11:11 < Marex> A) U-Boot
+11:11 < Marex> - Import DTS from Linux 4.12
+11:11 < Marex> - clock: Implement driver for R8A7795/R8A7796
+11:11 < Marex> - Serial-SH: - switch to use clock framework
+11:11 < Marex>              - probe from DT
+11:11 < Marex> - RAVB: - Fix PHY detection
+11:11 < Marex>         - Switch to use clock framework
+11:11 < Marex>         - Probe from DT
+11:11 < dammsan> yep
+11:11 < Marex> - SH-SDHI: - Fix ACMD handling
+11:11 < Marex>            - Add clock framework support
+11:11 < Marex>            - Add support for probing from DT
+11:11 < Marex> - Uniphier-SD: - Make it working on RCar Gen3
+11:11 < Marex>                  (this driver is much better)
+11:11 < Marex> - USB: Zap ehci-rcar-gen3 in favor of ehci-generic
+11:12 < Marex> B) U-Boot
+11:12 < Marex> - pincontrol driver for Gen3
+11:12 < Marex> - rename uniphier-sd to matsushita-sd (?)
+11:12 < Marex> - post the patches
+11:12 < Marex> C) U-Boot
+11:12 < Marex> - Lots of work to be done still :-)
+11:12 < Marex> I also have questions, ie. D)
+11:12 < Marex> D) U-Boot
+11:12 < Marex> - Can I post the patches ?
+11:12 < Marex> - What about RPC driver, can I start working on it ?
+11:12 < Marex>   (What about Linux RPC driver?)
+11:12 < Marex> - EHCI/xHCI DT nodes for R8A7796 for Linux ?
+11:12 < Marex> - Where is the Salvator-XS stuck, it didn't arrive yet
+11:12 < Marex> -- EOF --
+11:12 < pinchartl> dammsan: ok, thanks. yes, that's an issue that we have to solve. I'm not sure what the best option is
+11:12 < pinchartl> Marex: what's the RPC driver ?
+11:13 < Marex> pinchartl: QSPI/Hyperflash driver , it would be useful for me with patched BL2 to reprogram U-Boot from U-Boot
+11:13 < Marex> pinchartl: there's even some example code for RZ/A1, which I suspect has the same or very similar block
+11:13 < pinchartl> ok, thanks
+11:13 < Marex> (and -- putting on my MTD co-maint hat on -- I'd be interested to learn about Hyperflash and how we can add that to Linux =) )
+11:14 < geertu> Marex: Isn't it just QSPI / paired QSPI?
+11:14 < Marex> geertu: I think the command set is different and the bus is a bit different too, but I didn't look too deeply
+11:14 < Marex> geertu: we had a brief discussion about it on #mtd, but it didn't get far since there's no hardware in the wild
+11:14 < Marex> (unless you bake a core into an FPGA of course :-) )
+11:14 < geertu> Marex: until now?
+11:15 < Marex> geertu: kindof, the RPC is locked in the BL2 by default, so you cannot access the regs, you have to patch the BL2 mapping tables to allow access to those regs
+11:15  * Marex has a patch of course and runs a patched BL2 :-)
+11:16 < geertu> Shimoda-san would be greatful if you added EHCI/xHCI DT nodes for R8A7796
+11:16 < geertu> I believe the clocks are already there, courtesy Kaneko-san
+11:16 < Marex> geertu: it works for me in U-Boot , so I probably should just test it in Linux too and submit the patch ; it's almost a copy of the R8A7795 with a bit of crosschecking the datasheet
+11:16 < geertu> clocks -> in the driver
+11:17 < geertu> The binding update needs to be resent, though (it dates from summer 2016?)
+11:17 < Marex> geertu: the 7795 seems to have 4 EHCI, while the 7796 has two, I don't think on the EHCI side, there's any difference besides that
+11:17 < Marex> geertu: jupp
+11:17 < Marex> the HSUSB block is the same too, so should be easy
+11:17 < geertu> dammsan: What about "Can I post the patches ?"
+11:18 < dammsan> go ahead
+11:18 < Marex> dammsan: thanks !
+11:18 < dammsan> thx
+11:18 < geertu> Marex: The XS you no longer need, as the VC6 support for XS is already in Simon's tree ;-)
+11:19 < Marex> dammsan: the stack I sent you is a bit outdated, but I think it's OK if I have a bit more free reign about sending the R8A779x patches ?
+11:19 < Marex> dammsan: I added some more patches on the SD and USB side , no xhci yet, just driver improvements
+11:20 < geertu> Marex: BTW, is there a CNTVOFF register to initialize, like on CA7/CA15?
+11:20 < Marex> geertu: where ?
+11:20 < Marex> geertu: re XS, doesn't that have the R8A7795 on it ? :)
+11:20 < Marex> dammsan: re XS, I should notify Anders that I no longer expect it, yes ?
+11:22 < dammsan> pls email anders
+11:22 < Marex> dammsan: ACK
+11:22 < geertu> Thank you, Marek
+11:22 < geertu> Next is Ulrich
+11:23 < uli___> no updates from me
+11:23 < geertu> Thank you, Ulrich
+11:24 < geertu> As Shimoda-san is not here, I'll copy his updates
+11:24 < geertu> A)
+11:24 < geertu>    - Make USB2.0 clock selector driver as a CCF driver.
+11:24 < geertu>      But I have to update it for some feedbacks.
+11:24 < geertu>    - About R-Car D3's CPG things, unfortunately I don't get any information
+11:24 < geertu>      from BSP team yet.
+11:24 < geertu>      (BSP team intends to ask HW team but BSP team seems busy for now?)
+11:24 < geertu> B)
+11:24 < geertu>     - Continue to improve USB2.0 clock selector driver.
+11:24 < geertu>     - Need reply about R-Car D3's CPG things to Geert-san.
+11:24 < geertu>     - Add USB3.0 clock to r8a7796-cpg-mssr.c for v4.14.
+11:24 < geertu>     - Add hsusb, [oex]hci[01], usb2_phy1 nodes on r8a7796.dtsi instead of each
+11:24 < geertu>       "placeholder" for v4.14.
+11:24 < geertu> C)
+11:24 < geertu>     - If someone can handle adding usb3.0 clock and usb related device nodes
+11:24 < geertu>       for r8a7796, I'm very happy :)
+11:24 < geertu> ---EOT---
+11:24 < geertu> Topic 2. Discussion Topics
+11:25 < geertu> Do we have any?
+11:25 < Marex> dammsan: email is out
+11:26 < Marex> geertu: RPC, can I start working on it ?
+11:26 < neg> geertu: Noting from me
+11:26 < morimoto> useful defconfig for Gen3 board, somehow
+11:27 < Marex> morimoto: make savedefconfig is flaky again ?
+11:27 < geertu> This is a recurring topic.
+11:27  * Marex had problems with that before, sigh
+11:27 < morimoto> not a big deal though
+11:28 < geertu> Personally, I think Simon should have arch/arm64/configs/renesas_defconfig in his devel branch, not for merge upstream
+11:28 < geertu> Then the individual developers can send an update when they enable hardware support
+11:28 < geertu> update = for renesas_defconfig and plain (arm64) defconfig
+11:28 < morimoto> it sounds good to me
+11:28 < neg> I like that idea
+11:32 < geertu> Marex: About RPC, that's not my call, although I like it.
+11:32 < Marex> geertu: I like it too :-)
+11:33 < Marex> kbingham: it's 7.30 hrs from PRG to San Sebastian for me, heh
+11:33 < geertu> I think we're done with core?
+11:34 < pinchartl> when does everybody plan to arrive in San Sebastian ? I was thinking about Friday the 1st, but I'm also contemplating Thursday the 31st
+11:35 < neg> I was looking at flights for the 1st but I'm flexible
+11:36 < geertu> Monday, if possible
+11:36 < morimoto> Japanese 3 member are planning it now.
+11:36 < morimoto> We are thinking that we will arrive at 2nd or 3rd
+11:36 < neg> also should we try to book a euro-periperi airbnb house? If so how many beds do we need?
+11:36 < morimoto> but should we at 1st ?
+11:37 < pinchartl> morimoto: the meetings will start on the 4th. it depends how long you need to get adjusted to jetlag ;-)
+11:37 < morimoto> Hehe :)
+11:37 < pinchartl> neg: I would like to
+11:38 < morimoto> If we can have extra meeting before 4th, it can be good reason to escape from office for us :)
+11:38 < Marex> heh
+11:39 < pinchartl> I'm sure we could organize a meeting before the 4th if needed :-)
+11:40 < neg> pinchartl: so that is you, kbingham, uli___, geertu, jmondi, wsa, Marex, simon  and me => 9 ppl or am I forgeting someone?
+11:41  * Marex is invited to the megaparty ? wow, I'm flattered
+11:41 < pinchartl> I think that's it. however, some of us might prefer staying at a hotel, you would have to ask
+11:41 < geertu> I don't mind a house
+11:41 < geertu> I don't mind a hotel
+11:41 < neg> ofc just looking for the upper limit to be able to browse the options
+11:42 < pinchartl> geertu: there might be no pig this time
+11:43 < neg> :-(
+11:44 < geertu> pinchartl: As long as there's a pig in the main house, Morimoto-san will be happy
+11:44 < pinchartl> neg: when do you plan to fly back ?
+11:45 < morimoto> no pig this time :)
+11:45 < neg> pinchartl: flexible, but I intend to stay atleast to the 9th to be able to join all meetings
+11:46 < pinchartl> neg: I need to be in Belgium for the 10th, so I think I'll fly back on the 9th
+11:46 < pinchartl> 1st to 9th then
+11:46 < neg> I tentativly booked 4-10 in my calendar but as it now looks like ppl will show up the 1st I might as well make it 1-10
+11:47 < neg> 1-9 also works, should we set that as a target when looking for airbnb options?
+11:48 < pinchartl> sounds good to me
+11:48 < pinchartl> Kieran will likely leave on the 8th
+11:48 < geertu> pinchartl: me too
+11:49 < dammsan> me too
+11:49 < neg> So since ppl intend to show up erlier should we aim to move the IO meeting from the 8th to some other day?
+11:49 < pinchartl> geertu: and you will arrive on Monday the 4th, right ?
+11:50 < pinchartl> neg: I'd rather not move the social day to Friday though
+11:50 < dammsan> same here
+11:50 < geertu> pinchartl: Correct (still to book flights)
+11:50 < Marex> geertu: damned iberia is oneworld :/
+11:51 < dammsan> can we host i/o meeting in other airbnb place?
+11:51 < pinchartl> dammsan: I think we should be able to
+11:51 < neg> If we managed to find one I'm sure that is possible
+11:52 < dammsan> my guess is that 9 ppl needs two more airbnb probably
+11:52 < dammsan> unless you want to share a single shower
+11:53 < dammsan> the map browsing feature of airbnb is pretty good btw
+11:53 < dammsan> i recommend to check cancellation policy, the strict one is pretty strict imo
+11:53 < neg> a qucik search suggest there are ~2 options near by that have >= 9 beds but yes there might be other constrains such as showers (but the sea is so close...)
+11:54 < pinchartl> neg: maybe we should aim for 2 places
+11:54 < dammsan> usually number of baths are kind of limited. also many double beds
+11:54 < dammsan> think 12ppl place turns into 4ppl
+11:55  * neg never used airbnb so good point about checking the cancellation policy
+11:55 < dammsan> if you are tight on space then there most likely is an unused twin bed in my room
+11:56 < dammsan> but we are a tad low on bath options so i prefer not to push it more than necessary
+11:58 < neg> cheking the old mail thread it looks like everyone is attending but Marex who provided no prefrences on dates and Simon who did not prefere the dates but not sure if he made it work or not since, anyone know?
+11:59 < dammsan> i think simon is fine
+11:59 < geertu> Yeah, I talked to him last week, and he is planning to attend
+12:04 < dammsan> Marex: how difficult is it to work on the RPC? can you do it w/o further docs?
+12:08 < Marex> dammsan: I'd have to check that, but probably yes
+12:09 < Marex> dammsan: I would need a few hours to familiarize myself with the hyperflash part
+12:09 < Marex> dammsan: the RPC itself is documented and there is example code too
+12:09 < dammsan> i think you should go ahead and scratch that itch
+12:09 < Marex> dammsan: OK, thank you
+12:09 < dammsan> worst case if renesas prefers not to use it then we can keep it disabled
+12:10 < Marex> dammsan: right
+12:17 < dammsan> pinchartl: i booked the airbnb meeting place from the 2nd. was thinking of exploring bilbao before that.
+12:18 < dammsan> but if more people arrive in san sebastian earlier then i'm happy to be there instead
+12:20 < pinchartl> dammsan: I'll fly to San Sebastian, but I could then move to Bilbao or somewhere else
+12:20 < dammsan> its just around the corner
+12:21 < dammsan> Bilbao is supposed to have a bit more of museums if i understand it correctly
+12:22 < dammsan> according to my guide books busses to san sebastian tend to go via bilbao by default, but it may vary with airport and timing
+12:23 < pinchartl> the question is, where are the good restaurants ? :-)
+12:23 < dammsan> i got a michelin guide book but it is in spanish =)
+12:24 < dammsan> still easier than japanese
+12:24 < geertu> spanish is a (far) descendant of greek?
+12:25 < dammsan> according to "lonely planet pocket bilbao and san sebastian" you should book months ahead
+12:26 < pinchartl> indeed, there's a risk of that
+12:26 < dammsan> geertu: not sure, but many words seem easy to understand to me
+12:26 < pinchartl> there's clearly no way we'll fit the whole crowd around the same table anyway
+12:26  * pinchartl is off for lunch, I'll be back later
+12:26 < dammsan> probably so
+12:28 < dammsan> we should be able to eat a lot of pintxos at least!
+12:28 < geertu> dammsan: french, spanish, italian, latin, ... all the same ;-)
+12:28 < dammsan> txoko seems interesting too
+12:28 < dammsan> indeed =)
+12:34  * geertu lunchtime
+12:50  * morimoto will go back to lovely home
+12:50 < morimoto> I hope someone can put this chat log to Wiki page somehow