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SubjectRe: [PATCH v2 08/11] misc: hisi_hikey_usb: Driver to support onboard USB gpio hub on Hikey960
On Mon, Sep 07, 2020 at 05:59:32PM +0200, Mauro Carvalho Chehab wrote:
> From: Yu Chen <chenyu56@huawei.com>
>
> The HiKey960 has a fairly complex USB configuration due to it
> needing to support a USB-C port for host/device mode and multiple
> USB-A ports in host mode, all using a single USB controller.
>
> See schematics here:
> https://github.com/96boards/documentation/raw/master/consumer/hikey/hikey960/hardware-docs/HiKey960_Schematics.pdf
>
> This driver acts as a usb-role-switch intermediary, intercepting
> the role switch notifications from the tcpm code, and passing
> them on to the dwc3 core.
>
> In doing so, it also controls the onboard hub and power gpios in
> order to properly route the data lines between the USB-C port
> and the onboard hub to the USB-A ports.
>
> Signed-off-by: Yu Chen <chenyu56@huawei.com>
> [jstultz: Major rework to make the driver a usb-role-switch
> intermediary]
> Signed-off-by: John Stultz <john.stultz@linaro.org>
> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
> ---
> MAINTAINERS | 7 ++
> drivers/misc/Kconfig | 9 ++
> drivers/misc/Makefile | 1 +
> drivers/misc/hisi_hikey_usb.c | 205 ++++++++++++++++++++++++++++++++++
> 4 files changed, 222 insertions(+)
> create mode 100644 drivers/misc/hisi_hikey_usb.c

Can this, and the next patch, go into my char-misc tree independent of
the other patches in this series? Or do they all need to go in
together?

thanks,

greg k-h

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