Hi Gerd, Am 07.09.2016 um 12:59 schrieb Gerd Hoffmann: > On Mi, 2016-08-31 at 09:59 +0200, Stefan Wahren wrote: >> Hi Gerd, >> >> Am 21.08.2016 um 17:10 schrieb Stefan Wahren: >>> In case dr_mode isn't passed via DT, the dwc2 driver defaults >>> to OTG mode. But the Raspberry Pi 3 is designed only for host mode. >>> So fix this issue by linking to the dtsi file which set the dr_mode >>> to host. >> this patch is pending and the rest has been merged. Since i don't have a >> RPi 3 it's only compile tested. >> >> Could you please test it (requires patch 1 and 2 of this series) on your >> RPi 3? > Have a git tree to test? Patch doesn't apply cleanly (using 4.8-rc5 > with eric's for-next branch which already has 1+2), seems to depend on > more device tree changes. as i wrote in the changelog the patch series based on Ian Campbell's patches ARM: dts: Remove use of skeleton.dtsi from bcm283x.dtsi ARM64: dts: bcm: Use a symlink to R-Pi dtsi files from arch=arm Unfortunately i don't have a repo well prepared with this patch series. My development repo doesn't contain the final series V3 [1], but the master already has the necessary DT patches above. > Also usb is working fine for me on the rpi3 even without this, so why is > this needed? In case of a multiplatform config with following settings the driver isn't able to "detect" the role: CONFIG_USB=y CONFIG_USB_OTG=y CONFIG_USB_DWC2=y CONFIG_USB_DWC2_DUAL_ROLE=y CONFIG_USB_PHY=y CONFIG_NOP_USB_XCEIV=y CONFIG_USB_GADGET=y CONFIG_USB_ZERO=y Also please refer to my answer here [2] and this bug [3]. > Is dwc2 defaulting to otg mode a recent change? No, it's a default for all OTG host controller in case no dr_mode is defined. Regards Stefan [1] - https://github.com/lategoodbye/rpi-zero [2] - http://lists.infradead.org/pipermail/linux-rpi-kernel/2016-August/004242.html [3] - http://marc.info/?l=linux-usb&m=147169822213074&w=2 > > cheers, > Gerd > > > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-kernel@xxxxxxxxxxxxxxxxxxx > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel -- 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
