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SubjectRe: [PATCH v1 2/2] usb:cdns3 Add Cadence USB3 DRD Driver
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Pawel,

On 10/12/18 14:39, Pawel Laszczak wrote:
> This patch introduce new Cadence USBSS DRD driver
> to linux kernel.
>
> The Cadence USBSS DRD Driver is a highly
> configurable IP Core which can be
> instantiated as Dual-Role Device (DRD),
> Peripheral Only and Host Only (XHCI)
> configurations.
>
> The current driver has been validated with
> FPGA burned. We have support for PCIe
> bus, which is used on FPGA prototyping.
>
> The host side of USBSS-DRD controller is compliance
> with XHCI specification, so it works with
> standard XHCI linux driver.
>
> Signed-off-by: Pawel Laszczak <pawell@cadence.com>
> ---
> drivers/usb/Kconfig | 2 +
> drivers/usb/Makefile | 2 +
> drivers/usb/cdns3/Kconfig | 44 +
> drivers/usb/cdns3/Makefile | 16 +
> drivers/usb/cdns3/cdns3-pci-wrap.c | 157 +++
> drivers/usb/cdns3/core.c | 451 +++++++
> drivers/usb/cdns3/core.h | 108 ++
> drivers/usb/cdns3/debug.h | 346 ++++++
> drivers/usb/cdns3/debugfs.c | 168 +++
> drivers/usb/cdns3/drd.c | 315 +++++
> drivers/usb/cdns3/drd.h | 129 ++
> drivers/usb/cdns3/ep0.c | 864 +++++++++++++
> drivers/usb/cdns3/gadget-export.h | 28 +
> drivers/usb/cdns3/gadget.c | 1802 ++++++++++++++++++++++++++++
> drivers/usb/cdns3/gadget.h | 1177 ++++++++++++++++++
> drivers/usb/cdns3/host-export.h | 28 +
> drivers/usb/cdns3/host.c | 74 ++
> drivers/usb/cdns3/trace.c | 11 +
> drivers/usb/cdns3/trace.h | 343 ++++++

You went to the other extreme of combining everything (host/gadget/drd) together
which again makes this very hard to review.

I think what Felipe meant was to only combine the gadget driver code into one patch.

The series could be split into 6 patches like so.
-dt binding
-pci glue
-core driver
-host driver
-gadget driver
-drd driver

> 19 files changed, 6065 insertions(+)
> create mode 100644 drivers/usb/cdns3/Kconfig
> create mode 100644 drivers/usb/cdns3/Makefile
> create mode 100644 drivers/usb/cdns3/cdns3-pci-wrap.c
> create mode 100644 drivers/usb/cdns3/core.c
> create mode 100644 drivers/usb/cdns3/core.h
> create mode 100644 drivers/usb/cdns3/debug.h
> create mode 100644 drivers/usb/cdns3/debugfs.c
> create mode 100644 drivers/usb/cdns3/drd.c
> create mode 100644 drivers/usb/cdns3/drd.h
> create mode 100644 drivers/usb/cdns3/ep0.c
> create mode 100644 drivers/usb/cdns3/gadget-export.h
> create mode 100644 drivers/usb/cdns3/gadget.c
> create mode 100644 drivers/usb/cdns3/gadget.h
> create mode 100644 drivers/usb/cdns3/host-export.h
> create mode 100644 drivers/usb/cdns3/host.c
> create mode 100644 drivers/usb/cdns3/trace.c
> create mode 100644 drivers/usb/cdns3/trace.h
>
<snip>

cheers,
-roger

--
Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki.
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