Felipe, On Monday 09 October 2017 05:30 PM, Andrzej Pietrasiewicz wrote: > From: Vivek Gautam <gautam.vivek@xxxxxxxxxxx> > > Adding phy calibration sequence for USB 3.0 DRD PHY present on > Exynos5420/5800 systems. > This calibration facilitates setting certain PHY parameters viz. > the Loss-of-Signal (LOS) Detector Threshold Level, as well as > Tx-Vboost-Level for Super-Speed operations. > Additionally we also set proper time to wait for RxDetect measurement, > for desired PHY reference clock, so as to solve issue with enumeration > of few USB 3.0 devices, like Samsung SUM-TSB16S 3.0 USB drive > on the controller. > > We are using CR_port for this purpose to send required data > to override the LOS values. > > On testing with USB 3.0 devices on USB 3.0 port present on > SMDK5420, and peach-pit boards should see following message: > usb 2-1: new SuperSpeed USB device number 2 using xhci-hcd > > and without this patch, should see below shown message: > usb 1-1: new high-speed USB device number 2 using xhci-hcd > > [Also removed unnecessary extra lines in the register macro definitions] > > Signed-off-by: Vivek Gautam <gautam.vivek@xxxxxxxxxxx> > [adapted to use phy_calibrate as entry point] > Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@xxxxxxxxxxx> > --- > drivers/phy/samsung/phy-exynos5-usbdrd.c | 183 +++++++++++++++++++++++++++++++ > drivers/usb/dwc3/core.c | 7 +- are you okay with this patch? Thanks Kishon -- 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
