[PATCH v7 0/5] usb: xhci: Add support for Renesas USB controllers

Vinod Koul
2020-03-23T10:11:48Z

This series add support for Renesas USB controllers uPD720201 and uPD720202.
These require firmware to be loaded and in case devices have ROM those can
also be programmed if empty. If ROM is programmed, it runs from ROM as well.

This includes patches from Christian which supported these controllers w/o
ROM and later my patches for ROM support and debugfs hook for rom erase and
export of xhci-pci functions.

Changes in v7:
Make a single module which removes issues with module loading
Keep the renesas code in renesas file
Add hc_driver as argument for usb_hcd_pci_probe and modify hdc drivers to
pass this and not use driver_data
Use driver data for fw name
Remove code to check if we need to load firmware or not
remove multiple fw version support, we can do that with symlink in
userspace

Changes in v6:
Move the renesas code into a seprate driver which invokes xhci-pci functions.

Changes in v5:
Added a debugfs rom erase patch, helps in debugging
Squashed patch 1 & 2 as requested by Mathias

Changes in v4:
Rollback the delay values as we got device failures

Changes in v3:
Dropped patch 2 as discussed with Christian
Removed aligned 8 bytes check
Change order for firware search from highest version to lowest
Added entry for new firmware for device 0x14 as well
Add tested by Christian

Changes in v2:
used macros for timeout count and delay
removed renesas_fw_alive_check
cleaned renesas_fw_callback
removed recurion for renesas_fw_download
added MODULE_FIRMWARE
added comment for multiple fw order

Christian Lamparter (1):
usb: renesas-xhci: Add the renesas xhci driver

Vinod Koul (4):
usb: hci: add hc_driver as argument for usb_hcd_pci_probe
usb: xhci: Add support for Renesas controller with memory
usb: renesas-xhci: Add ROM loader for uPD720201
usb: xhci: provide a debugfs hook for erasing rom

drivers/usb/core/hcd-pci.c | 7 +-
drivers/usb/host/Makefile | 3 +-
drivers/usb/host/ehci-pci.c | 6 +-
drivers/usb/host/ohci-pci.c | 9 +-
drivers/usb/host/uhci-pci.c | 8 +-
drivers/usb/host/xhci-pci-renesas.c | 809 ++++++++++++++++++++++++++++
drivers/usb/host/xhci-pci.c | 43 +-
drivers/usb/host/xhci-pci.h | 14 +
include/linux/usb/hcd.h | 3 +-
9 files changed, 878 insertions(+), 24 deletions(-)
create mode 100644 drivers/usb/host/xhci-pci-renesas.c
create mode 100644 drivers/usb/host/xhci-pci.h

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2.25.1