[PATCH v9] usb: add MediaTek USB3 DRD driver

[Chunfeng Yun]

On Thu, 2020-10-15 at 14:28 +0200, Marek Vasut wrote:
> On 10/15/20 3:49 AM, Chunfeng Yun wrote:
> > Hi Marek,
> 
> Hi,
> 
> > On Wed, 2020-10-14 at 15:03 +0200, Marek Vasut wrote:
> >> On 10/14/20 2:29 PM, Chunfeng Yun wrote:
> >>> On Wed, 2020-10-14 at 12:56 +0200, Marek Vasut wrote:
> >>>> On 10/14/20 10:50 AM, Chunfeng Yun wrote:
> >>>>> This patch adds support for the MediaTek USB3 DRD controller,
> >>>>> its host side is based on xHCI, this driver supports device mode
> >>>>> and host mode.
> >>>>
> >>>> This patch doesn't seem to apply to u-boot-usb/next , 
> > This may cause u-boot-usb/next build error, due to no gadget driver is
> > built, because I enabled the following configs in patch 764751784727
> > ("configs: mt8512: enable fastboot and USB host related configs"):
> > CONFIG_DM_USB_GADGET=y
> > CONFIG_USB_MTU3=y
> > CONFIG_USB_GADGET=y
> > 
> > but the mtu3 driver is not yet applied in u-boot-usb/next (although
> > CONFIG_USB_MTU3 is enabled); and
> > CONFIG_DM_USB_GADGET requires a gadget driver to define
> > dm_usb_gadget_handle_interrupts(), then the build error happened.
> > 
> >> and also,
> >>>> u-boot-usb/next does not build:
> >>>
> >>> There is error:
> >>>  aarch64:  +   mt8512_bm1_emmc
> >>> +aarch64-linux-ld.bfd: drivers/usb/gadget/udc/built-in.o: in function
> >>> `usb_gadget_handle_interrupts':
> >>> +drivers/usb/gadget/udc/udc-uclass.c:56: undefined reference to
> >>> `dm_usb_gadget_handle_interrupts'
> >>>
> >>> It seems that the gadget of mtu3 is not enabled, but the default mode is
> >>> gadget mode, not sure why not works.
> > I tested it again, and look at the CI pipeline 4997, the mtu3 driver is
> > not applied into u-boot-usb/next, so will build error.
> > 
> > Please apply the following patch to u-boot-usb/next, it will build pass:
> > https://patchwork.ozlabs.org/project/uboot/patch/1602681717-20850-1-git-send-email-chunfeng.yun@mediatek.com/
> > [RESEND,v9] usb: add MediaTek USB3 DRD driver
> > 
> > 
> > The following patch is not needed anymore, please ignore it
> > https://patchwork.ozlabs.org/project/uboot/patch/1602680044-19794-1-git-send-email-chunfeng.yun@mediatek.com/
> > [v2] configs: mt8512: enable device mode of mtu3 explicitly
> 
> OK, so, please rebase whatever is left on top of usb/next and resend.
Ok, thanks

> This patch does not apply on top of usb/next, sorry.