[U-Boot] [PATCH RFC v2 0/6] usb: host: Add driver model support

[Simon Glass]

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On 18 February 2015 at 06:14, Simon Glass <sjg at chromium.org> wrote:
> Hi Vivek,
>
> On 18 February 2015 at 03:40, Vivek Gautam <gautam.vivek at samsung.com> wrote:
>> Hi Marek, Simon,
>>
>> This patch-series comes as a update for an earlier posted series[1]
>> "[PATCH RFC 0/2] usb: host: Add a wrapper layer for mutiple host support"
>> which was posted long back.
>>
>> We had discussion to introduce the driver model instead of the approach used
>> in [1]. The driver model seems pretty straight-forward and easier to implement
>>  besides giving a clean approach to use multiple host controller types, viz.
>> EHCI, XHCI or OHCI simultaneously on a platform which has such provision.
>>
>> It's rather bad on my side that it took so long to post the updated version.
>> Got busy with the projects. :-(
>>
>> So here's the RFC-v2 which implements the driver model approach.
>> I have added support on OHCI, EHCI and XHCI and enabled EHCI and XHCI
>>  on Exynos5250 machines. Though not tested thoroughly, i can see EHCI
>> and XHCI working together (enumerating the Root hubs).
>>
>> Let me know you comments on what you think of current approach.
>
> Great to see this - will take a look. Did you see my RFC on 30th Jan? E.g. this:
>
> https://patchwork.ozlabs.org/patch/434995/
>
> Regards,
> Simon
>
>>
>> Thanks
>> Vivek
>>
>> [1] [PATCH RFC 0/2] usb: host: Add a wrapper layer for mutiple host support
>> http://lists.denx.de/pipermail/u-boot/2014-June/182559.html
>>
>> Vivek Gautam (6):
>>   usb: Rename usb_submit_int_msg() API to usb_int_msg()
>>   dm: usb: Make necessary changes in framework for driver model
>>   dm: usb-host: Add UCLASS driver for USB
>>   dm: usb-host: Add support for driver model in o/e/xhci.
>>   arm: exynos5: Enable EHCI and XHCI hcds through device tree.
>>   configs: smdk5250: Enable using XHCI and EHCI together
>>
>>  arch/arm/dts/exynos5.dtsi           |    8 +++
>>  common/usb.c                        |  101 ++++++++++++++++++++++++++++++---
>>  common/usb_hub.c                    |    2 +-
>>  common/usb_kbd.c                    |    4 +-
>>  common/usb_storage.c                |    2 +-
>>  drivers/usb/host/Kconfig            |    9 +++
>>  drivers/usb/host/Makefile           |    3 +
>>  drivers/usb/host/ehci-hcd.c         |   36 +++++++++---
>>  drivers/usb/host/ohci-hcd.c         |   35 +++++++++---
>>  drivers/usb/host/usb-uclass.c       |  107 +++++++++++++++++++++++++++++++++++
>>  drivers/usb/host/xhci.c             |   34 ++++++++---
>>  include/configs/exynos5-common.h    |    3 +
>>  include/configs/exynos5250-common.h |    3 +
>>  include/configs/smdk5250.h          |    2 +
>>  include/dm/uclass-id.h              |    1 +
>>  include/usb.h                       |   62 +++++++++++++++-----
>>  16 files changed, 365 insertions(+), 47 deletions(-)
>>  create mode 100644 drivers/usb/host/usb-uclass.c
>>
>> --
>> 1.7.10.4
>>