Hi, On Tue, 2013-08-20 at 09:33 -0500, Felipe Balbi wrote: > On Tue, Aug 20, 2013 at 05:09:11PM +0300, Ivan T. Ivanov wrote: > > Hi, > > > > On Tue, 2013-08-20 at 08:37 -0500, Felipe Balbi wrote: > > > Hi, > > > > > > On Tue, Aug 20, 2013 at 04:32:23PM +0300, Ivan T. Ivanov wrote: > > > > > On Tue, Aug 20, 2013 at 12:56:04PM +0300, Ivan T. Ivanov wrote: > > > > > > From: "Ivan T. Ivanov" <iivanov@xxxxxxxxxx> > > > > > > > > > > > > These drivers handles control and configuration of the HS > > > > > > and SS USB PHY transceivers. They are part of the driver > > > > > > which manage Synopsys DesignWare USB3 controller stack > > > > > > inside Qualcomm SoC's. > > > > > > > > > > > > Signed-off-by: Ivan T. Ivanov <iivanov@xxxxxxxxxx> > > > > > > --- > > > > > > drivers/usb/phy/Kconfig | 11 ++ > > > > > > drivers/usb/phy/Makefile | 2 + > > > > > > drivers/usb/phy/phy-msm-dwc3-hs.c | 327 ++++++++++++++++++++++++++++++++ > > > > > > drivers/usb/phy/phy-msm-dwc3-ss.c | 374 +++++++++++++++++++++++++++++++++++++ > > > > > > > > > > please rename these PHY drivers, they have nothing to do with DWC3. PHYs > > > > > don't care about the USB controller. > > > > > > > > I think they are SNPS DesignWare PHY's, additionally > > > > wrapped with Qualcomm logic. I could substitute "dwc3" > > > > with just "dw", which will be more correct. > > > > > > alright, thank you. Let's add Paul to the loop since he might have very > > > good insight in the synopsys PHYs. > > > > > > mental note: if any other platform shows up with Synopsys PHY, ask them > > > to use this driver instead :-) > > > > I really doubt that this will bi possible. Control of the PHY's is > > not directly trough ULPI, UTMI or PIPE3 interfaces, but trough > > QSCRATCH registers, which of course is highly Qualcomm specific. > > isn't it a memory mapped IP ? doesn't synopsys provide their own set of > registers ? >From what I see it is not directly mapped. How QSCRATCH write and reads transactions are translated to DW IP is unclear to me. Ivan -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
