Re: [PATCH REPOST v13 0/4] usb: xhci: Add support for Renesas USB controllers

[Mathias Nyman <mathias.nyman@linux.intel.com>]

On 14.5.2020 15.20, Vinod Koul wrote:
> 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 v13-repost:
>  - drop debugfs patch 5 and repost
> 
> Changes in v13:
>  - Make rensesas as independent module invoke by xhci-pci which can be
>    selected by users of such hardware
> 
> Changes in v12:
>   - Restore back module name for xhci-pci, so now renesas is a separate
>     module, export init/exit routines from renesas modules
>   - Update changelog on patch2
> 
> Changes in v11:
>   - update xhci->quirks and use that in remove function
>   - remove error return renesas_verify_fw_version()
>   - remove renesas_download_rom() and modify renesas_fw_download_image() for
>   reuse
> Changes in v10:
>   remove renesas_xhci_pci_probe and call renesas_xhci_check_request_fw and
>   also cleanup exit code along with it.
> 
> Changes in v9:
>  Make fw load a sync call and have single instance of probe execute,
>    elimating probe/remove races
>  Add quirk for renesas and use that for loading
> 
> Changes in v8:
>  Fix compile error reported by Kbuild-bot by making usb_hcd_pci_probe() take
>  const struct hc_driver * as argument
> 
> 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 separate 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 firmware 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 multip
> 
> Christian Lamparter (1):
>   usb: renesas-xhci: Add the renesas xhci driver
> 
> Vinod Koul (3):
>   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
> 
>  drivers/usb/core/hcd-pci.c          |   7 +-
>  drivers/usb/host/Kconfig            |   9 +
>  drivers/usb/host/Makefile           |   1 +
>  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 | 645 ++++++++++++++++++++++++++++
>  drivers/usb/host/xhci-pci.c         |  47 +-
>  drivers/usb/host/xhci-pci.h         |  28 ++
>  drivers/usb/host/xhci.h             |   1 +
>  include/linux/usb/hcd.h             |   3 +-
>  11 files changed, 742 insertions(+), 22 deletions(-)
>  create mode 100644 drivers/usb/host/xhci-pci-renesas.c
>  create mode 100644 drivers/usb/host/xhci-pci.h
> 

For all 4 patches:
Acked-by: Mathias Nyman <mathias.nyman@linux.intel.com>