These patches add support for XHCI compliant Host controller found on Fujitsu Socs, and are based on http://lwn.net/Articles/629162/ The first patch is to add Fujitsu glue layer of Synopsis DesignWare USB3 driver and last four patch is about quirk implementation of errata in Synopsis DesignWare USB3 IP. Patch 1 introduces a quirk with device disconnection management necessary Synopsys Designware USB3 IP with versions < 3.00a and hardware configuration DWC_USB3_SUSPEND_ON_DISCONNECT_EN=1. It solves a problem where without the quirk, that host controller will die after a usb device is disconnected from port of root hub. Patch 2 is to set Synopsis quirk in xhci platform driver based on xhci platform data. Patch 3 is to add a revison number 2.90a and 3.00a of Synopsis DesignWare USB3 IP core driver. Patch 4 introduces using a quirk based on a errata of Synopsis DesignWare USB3 IP which is versions < 3.00a and has hardware configuration DWC_USB3_SUSPEND_ON_DISCONNECT_EN=1, which cannot be read from software. As a result this quirk has to be enabled via platform data or device tree. Patch 5 introduces Fujitsu Specific Glue layer in Synopsis DesignWare USB3 IP driver. Successfully tested on Fujitsu mb86s7x board. Changes since v4 (RFC): [https://lkml.org/lkml/2015/2/17/13] - based on Felipe's comment, rename dwc3-mb86s70.c to dwc3-fujitsu.c which is more generic. - based on Mathias's comment, remove unhelpful comment, and change the function name of xhci_try_to_clear_csc() to xhci_late_csc_clear_quirk() which is more appropriate. Changes since v3 (RFC): [https://lkml.org/lkml/2015/1/25/8] - based on Mathias's comment, fix bug and using xhci_port_state_to_neutral() helper function to mask out some RW1C bits, prevent writing back all the bits read from the PORTSC register. Changes since v2 (RFC): [https://lkml.org/lkml/2015/1/19/55] - based on Felipe's comment, re-order patches to avoid breaking bisectability, - based on Felipe's comment, add comment to structure's member, and sort it alphabetically, - based on Felipe's comment, add another v2.90 revision number in dwc3 IP. Changes since v1 (RFC): [https://lkml.org/lkml/2014/12/15/929] - based on Arnd's comment, remove entire unnecessary Fujitsu EHCI/OHCI glue, - based on Felipe's comment, fix mis-using of runtime-pm API and setting dma mask, remove unnecessary comment, and refactor suspend/resume handler in Fujitsu Specific Glue layer in dwc3, - based on Felipe's comment, add more commit log and comments in Synopsis quirk implementation, and separate it into four patches. Sneeker Yeh (5): xhci: add a quirk for device disconnection errata for Synopsis Designware USB3 core xhci: Platform: Set Synopsis device disconnection quirk based on platform data usb: dwc3: add revision number DWC3_REVISION_290A and DWC3_REVISION_300A usb: dwc3: Add quirk for Synopsis device disconnection errata usb: dwc3: add Fujitsu Specific Glue layer Documentation/devicetree/bindings/usb/dwc3.txt | 17 ++ .../devicetree/bindings/usb/fujitsu-dwc3.txt | 33 ++++ drivers/usb/dwc3/Kconfig | 10 + drivers/usb/dwc3/Makefile | 1 + drivers/usb/dwc3/core.c | 6 + drivers/usb/dwc3/core.h | 6 + drivers/usb/dwc3/dwc3-fujitsu.c | 206 ++++++++++++++++++++ drivers/usb/dwc3/host.c | 4 + drivers/usb/dwc3/platform_data.h | 8 + drivers/usb/host/xhci-hub.c | 4 + drivers/usb/host/xhci-plat.c | 3 + drivers/usb/host/xhci.c | 33 ++++ drivers/usb/host/xhci.h | 24 +++ include/linux/usb/xhci_pdriver.h | 4 + 14 files changed, 359 insertions(+) create mode 100644 Documentation/devicetree/bindings/usb/fujitsu-dwc3.txt create mode 100644 drivers/usb/dwc3/dwc3-fujitsu.c -- 1.7.9.5 -- 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
