1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
|
09:36 < geertu> Welcome to today's core group chat
09:36 < geertu> Agenda:
09:36 < geertu> 1. Status Updates
09:36 < geertu> 2. Discussion Topics
09:37 < geertu> Topic 1. Status updates
09:37 < geertu> A) What have we done since last time:
09:37 < geertu> Kaneko-san sorted more nodes in arm64 DTS.
09:37 < geertu> Marek worked on ATF (Condor, DDR B, BSP upport), U-Boot (ULCB CPLD
09:37 < geertu> control tool, R8A66597 DM/DT), Linux (PCIe 32bit limitation and DMA
09:37 < geertu> range handling).
09:37 < geertu> Shimoda-san submitted PFC fixes.
09:37 < geertu> Simon cleant up DT binding doc filenames.
09:37 < geertu> Ulrich reviewed R-Car H1 DTS fixes.
09:37 < geertu> Geert reviewed the pwm-rcar/pfc/gpio patches, sent pull requests for
09:37 < geertu> v5.4 (arm-soc/pfc), submitted OSTM unique device names and always-on PM
09:37 < geertu> Domain fixes, did periject housekeeping, and improved ARM Cortex-A7/A9
09:37 < geertu> Errata selection.
09:38 < geertu> B) What we plan to do till next time:
09:38 < geertu> Marek plans to work on U-Boot (limited USB sticks, Migo-R and R2D
09:38 < geertu> DM/DT).
09:38 < geertu> Shimoda-san plans to ping the BSDL files, and continue preparing
09:38 < geertu> rcar-dmac patches for V3U.
09:38 < geertu> Simon plans to continue cleaning up DT binding doc filenames.
09:38 < geertu> Geert plans to send more pull requests for v5.4 for clk/pfc/arm-soc, and
09:38 < geertu> rework always-on PM Domain fixes, determine_rate() patches, and the GPIO
09:38 < geertu> aggregator.
09:38 < geertu> C) Problems we have currently:
09:38 < geertu> Geert wonders how to treat R-Car M3-W ES3.0 aka M3-W+.
09:38 < geertu> ---EOL---
09:38 < geertu> Anything I missed?
09:39 < geertu> shimoda: About "Switching multiplexed LSI pins during operation is not guaranteed"
09:39 < geertu> I think this means that it cannot guarantee that there are no glitches
09:40 < geertu> For PWM output, glitches shouldn't harm much
09:41 < geertu> As the PWM hardware doesn't seem to finish the current cycle when changing PWM parameters, glitches cannot be avoided anyway.
09:45 < shimoda> geertu: sorry I cannot understand your last comment. is this related to gpio thing? or just PWM hardware?
09:46 < geertu> shimoda: My last comment was related to the rcar-pwm hardware
09:47 < geertu> IIRC, you replied that to a question from Uwe about finishing cycles?
09:49 < geertu> Oops, looks like I misread: "the hardware will complete the currently running period"
09:49 < shimoda> geertu: Yes, I replied to Uwe. this is a violation between PWM subsystem vs the rcar-pwm hardware.
09:49 < geertu> but not when disabling it.
09:51 < shimoda> pwm itself is no problem about glitches point of view, I think.
09:51 < shimoda> s/pwm/rcar-pwm hardware/
09:51 < geertu> So the question for continuing with PWM/GPIO is: can we live with the glitches
09:54 < shimoda> geertu: I don't think we can live for now. Especially, any customer don's ask us about this topic for now. If customer wants such a feature, our hardware team will start to investigate how to achieve it :)
09:54 < geertu> OK
09:54 < geertu> case closed ;-)
09:54 < shimoda> :)
09:55 < geertu> I think that already counted as a Topic 2. Discussion Topics
09:55 < geertu> B) R-Car M3-W ES3.0 aka M3-W+
09:56 < geertu> Eugeniu nicely summarized the possible approaches
09:56 < geertu> He did miss H3 ES2.0 cam with a new part number, too (r8a77951)
09:56 < geertu> s/cam/came/
09:59 < geertu> For H3 ES2.0, it turned out to be a different SoC than ES1.x (H3 ES2.0 is more similar to M3-W ES1.0 than to H3 ES1.x)
10:00 < geertu> It was mentioned before that in hindsight, we should have gone for separate compatible values for H3 ES2.0
10:00 < geertu> So I'm leaning towards doing that for R-Car M3-W+
10:01 < geertu> In the mean time, we did become used to five digit part numbers.
10:02 < geertu> My questions:
10:02 < geertu> 1) What do you think?
10:02 < geertu> 2) Do we have hardware access (e.g. in Magnus' farm)?
10:05 < shimoda> about M3-W and M3-W+, we can keep both dts files? (Unfortunately) this is because both SoCs will be mass production.
10:06 < geertu> If both will be mass-production, that's another reason to treat them different
10:06 < shimoda> about 2), I will bring one of M3-W+ board to Magnus' farm.
10:06 < geertu> shimoda: 2) thx!
10:06 < geertu> I guess H3 ES1.x is no longer produced
10:07 < geertu> BTW, if hardware bugs need to be fixed, will M3-W have both ES 2.1 (without +) and ES4.0 (with +)? ;-)
10:07 < shimoda> geertu: yes. H3 ES1.x will not be mass-production
10:08 < wsa> geertu: please stop, my head is already spinning :)
10:08 < shimoda> geertu: i think so. maybe ES1.4 and ES3.1 though :)
10:09 < geertu> Ah yes, they cannot have ES2 due to the PRID screwup ;-)
10:10 < geertu> For H3, we always said the upstream default should be the production version
10:11 < geertu> For M3-W, there will be two, so that warrants having both r8a7796 and r8a77961
10:12 < geertu> Let's stop spinning heads for now...
10:12 < geertu> 3) ELC-E: Do we need/want/have a periperi meeting?
10:13 < wsa> who will be at plumbers?
10:13 < morimoto> no JaPeri
10:13 < uli_> i will
10:13 < pinchartl> I will be at LPC and ELCE
10:13 < jmondi> me 2
10:14 < geertu> I won't be at LPC, bit I will at ER and ELCE
10:14 < pinchartl> Niklas will attend both too, Kieran will only attend ELCE
10:14 < wsa> I'll be at LPC, the recipes, and ELCE
10:15 < wsa> my gut feeling says, let's have email-only reports in three weeks
10:15 < pinchartl> I think that's best
10:15 < morimoto> +1
10:15 < wsa> the alternative might be an IRC meeting in 2 weeks
10:15 < pinchartl> for ELCE, do we have topics that require face to face discussions ? on the multimedia side, I don't think we do
10:16 < geertu> pinchartl: same for core, I think, unless I'm missing something
10:16 < wsa> pinchartl: i don't know yet
10:16 < geertu> email-only reports in three weeks is fine for me
10:17 < wsa> okay, email-reports in 3 weeks is it then
10:17 < pinchartl> then we should certainly meet at ELCE, but I don't think we need to reserve a day for full-time meetings :-)
10:17 < pinchartl> a dinner meeting may be more appropriate
10:17 < wsa> pinchartl: same impression here
10:19 < geertu> Monday evening is partner reception (some of us?)
10:19 < wsa> yup
10:19 < geertu> Tuesday evening is attendee reception (all of us?)
10:19 < pinchartl> I won't be free on Tuesday
10:19 < geertu> So that makes Wednesday evening, after the closing game?
10:20 < pinchartl> for preference would be Wednesday indeed
10:20 < geertu> (and I can rail back home on Thursday ;)
10:20 < pinchartl> there may be V4L2 discussions on Thursday, but I don't suppose you'll want to attend :-)
10:23 < geertu> Anything else to discuss (besides multimedia)?
10:24 < geertu> Thanks for joining, and have a nice continued day!
|
