Messages in this thread | | | From | Masahiro Yamada <> | Date | Wed, 4 Apr 2018 19:33:13 +0900 | Subject | Re: Multiple generic PHY instances for DWC3 USB IP |
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Hi Arnd,
2018-04-04 17:43 GMT+09:00 Arnd Bergmann <arnd@arndb.de>: > On Wed, Apr 4, 2018 at 10:00 AM, Felipe Balbi > <felipe.balbi@linux.intel.com> wrote: >> >> Hi, >> >> Masahiro Yamada <yamada.masahiro@socionext.com> writes: >>>>> Each DWC3 instance is connected with >>>>> multiple HS PHYs and multiple SS PHYs, >>>>> depending on the number of ports. >>>> >>>> in that case, you shouldn't need dwc3 at all. A Host-only dwc3 is xHCI >>>> compliant. If you really don't have the gadget block, there's no need >>>> for you to use dwc3. Just use xhci-plat directly. >>> >>> Sorry, I was misunderstanding. >>> >>> Some of our SoCs support gadget, >>> so we need to use the dwc3 driver. >> >> fair enough. Now we need to figure out how to pass multiply PHYs to a >> multi-port dwc3 instance. >> >> Kishon, any ideas? How do you think DT should look like? > > See this series from Martin Blumenstingl: > > https://www.spinics.net/lists/linux-usb/msg166281.html > > Arnd
Very useful information!
Not tested yet, but I quickly reviewed the series visually, and probably this will work for us.
Thanks!
-- Best Regards Masahiro Yamada
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