On Thu, Sep 10, 2015 at 02:57:49PM +0000, Punnaiah Choudary Kalluri wrote: > > > > -----Original Message----- > > From: Felipe Balbi [mailto:balbi@xxxxxx] > > Sent: Thursday, September 10, 2015 8:14 PM > > To: Subbaraya Sundeep Bhatta > > Cc: Peter Chen; balbi@xxxxxx; linux-usb@xxxxxxxxxxxxxxx; linux- > > kernel@xxxxxxxxxxxxxxx; Greg Kroah-Hartman > > (gregkh@xxxxxxxxxxxxxxxxxxx); kishon@xxxxxx; Punnaiah Choudary Kalluri > > Subject: Re: Chipidea ULPI driver > > > > (break your lines at 80-characters) > > > > On Thu, Sep 10, 2015 at 12:44:58PM +0000, Subbaraya Sundeep Bhatta wrote: > > > Hi Peter, > > > > > > We are using NOP transceiver driver for USB3320 ULPI PHY with ChipIdea > > > controller. > > > > > > Recently we found that one of the boards (zedboard) requires PHY > > > register access to set VBUS. > > > > > > Note that our local driver we had before migrating to ChipIdea driver > > > calls otg_ulpi_create with flags ULPI_OTG_DRVVBUS | > > > ULPI_OTG_DRVVBUS_EXT so that VBUS is enabled at initialization. > > > > > > Can you please let me know how to do this with ChipIdea case? I see > > > the following solutions: > > > > > > 1. Write ULPI driver for USB3320 similar to tusb1210. > > > > this > > How about extending the phy-ulpi driver to use it as platform driver? > So that boards that are using the ulpi compatible phy and driving vbus from the phy > can use this driver. > Yes, you can improve phy-ulpi driver, and it can not depend on NOP transceiver driver. -- Best Regards, Peter Chen -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
