On Sun, Feb 22, 2015 at 12:25:35PM +0800, Sneeker Yeh wrote: > 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 Mathias, if you want me to take this series I need your Acked-by, otherwise I can give you mine, just let me know. -- balbi
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