#qi-hardware on 2013-10-02 — irc logs at freenode.irclog.whitequark.org

2013-02-28 15:16 DocScrutinizer05 changed the topic of #qi-hardware to: Copyleft hardware - http://qi-hardware.com | hardware hackers join here to discuss Ben NanoNote, atben / atusb 802.15.4 wireless, and other community driven hw projects | public logging at http://en.qi-hardware.com/irclogs and http://irclog.whitequark.org/qi-hardware

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07:38 <qi-bot> [commit] Werner Almesberger: ircstat/ML: update for 9/2013 (master) http://qi-hw.com/p/wernermisc/f732d7e

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17:58 <wpwrak> hmm, seems that the new USB connector will only reach me next week :( looks as if fedex have either reduced their flight frequency to argentina or the plane has a new schedule, missing the latest drop from digi-key

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21:35 <apelete> Hello

21:35 <apelete> mth: are you there ?

21:37 <apelete> mth: still debugging the musb driver for jz4740, I added a check to make the probe fail on !pdata like you suggested

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21:38 <apelete> and it failed right on the spot: http://paste.debian.net/48929/

21:39 <apelete> code is here (didn't push it to my git repository yet, would like to fix the probe before, sorry): http://paste.debian.net/48930/

21:41 <apelete> mth: my question now is: why is "struct musb_hdrc_platform_data *pdata = pdev->dev.platform_data;" not working ?

21:41 <mth> is there platform data defined for this device?

21:42 <apelete> I guess so

21:42 <mth> well, if you didn't add it, there isn't ;)

21:42 <apelete> where should it been ?

21:42 <mth> arch/mips/jz4740/platform.c

21:44 <apelete> here it is: http://seketeli.fr/git/~apelete/qi-kernel.git/tree/arch/mips/jz4740/platform.c?h=jz4740-udc&id=1204f6f657f782695aefcfe690db0da8b6661c45

21:44 <mth> see https://github.com/gcwnow/linux/blob/jz-3.11/arch/mips/jz4770/platform.c#L127

21:45 <mth> there is no "musb" in the platform.c you linked, so I think it's missing

21:47 <apelete> there is, but i put it in struct platform_device jz4740_udc_device instead: http://paste.debian.net/48947/

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21:47 <apelete> (I guess I should push these into git anyway, even if it's not working yet...)

21:53 <apelete> mth: ah, I see, I also need to have a "static struct musb_hdrc_config" and "static struct musb_hdrc_platform_data" in order to define "struct platform_device jz4740_whatever", isn't that so ?

21:57 <mth> yes, and an associated struct platform_device as well

21:57 <mth> the name of the platform device should match the name of your driver

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22:00 <apelete> mth: ok. where do I find all the data to fill these struct members ?

22:01 <apelete> I guess I need some sort of detailed datasheet...

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22:31 <apelete> time to get some sleep (12:30 AM here in france)

22:32 <apelete> mth: thanks for your time and insight, will let you know how it goes

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22:34 <mth> apelete: ok, good luck

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