Re: [PATCH v6] usb: gadget: udc: renesas_usb3: Add register of usb role switch

[Felipe Balbi <balbi@kernel.org>]

[-- Attachment #1: Type: text/plain, Size: 1492 bytes --]

Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> writes:

> This patch adds role switch support for R-Car SoCs into the USB 3.0
> peripheral driver. Some R-Car SoCs (e.g. R-Car H3) have USB 3.0
> dual-role device controller which has the USB 3.0 xHCI host and
> Renesas USB 3.0 peripheral.
>
> Unfortunately, the mode change register (DRD_CON) contains
> the USB 3.0 peripheral controller side only. So, this renesas_usb3
> driver manages the DRD_CON now. However, in peripheral mode, the host
> should stop. Also the host hardware needs to reinitialize its own
> registers when the mode changes from peripheral to host mode.
> Otherwise, the host cannot work correctly (e.g. detect a device
> as high-speed).
>
> To achieve this reinitialization by a driver, this driver also
> registers a role switch driver to manage the DRD_CON and get
> a device pointer of usb 3.0 host from "companion" property of OF.
> Then, when the usb role is changed, renesas_usb3_role_switch_set()
> will attach/release the xhci-plat driver to reinitialize the host
> hardware.
>
> Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>

unfortunately doesn't apply:

checking file drivers/usb/gadget/udc/Kconfig
Hunk #1 FAILED at 193.
1 out of 1 hunk FAILED
checking file drivers/usb/gadget/udc/renesas_usb3.c
Hunk #7 succeeded at 2465 (offset -12 lines).
Hunk #8 succeeded at 2624 (offset -11 lines).
Hunk #9 succeeded at 2715 (offset -11 lines).

-- 
balbi

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 832 bytes --]