Re: [PATCH v3 2/7] usb: musb: dma: Add support for shared IRQ

Paul Cercueil
2019-12-17T21:04:56Z

Hi Bin,

Le mar., déc. 17, 2019 at 08:42, Bin Liu <b-liu@ti.com> a écrit :
> Hi Paul,
>
> On Wed, Dec 11, 2019 at 12:52:24PM -0600, Bin Liu wrote:
>> On Tue, Dec 10, 2019 at 06:11:05PM +0100, Paul Cercueil wrote:
>> > The implementation of the Inventra IP in some of the Ingenic
>> JZ47xx SoCs
>> > does not use a separate IRQ line for DMA transfers.
>> >
>> > Allow these SoCs to be supported by adding a flag
>> 'dma_share_usb_irq'
>> > in the struct musb. If set, no extra IRQ line is required, and
>> the musb
>> > glue will need to call the API function
>> musbhs_dma_controller_irq()
>> > within its interrupt handler.
>> >
>> > Signed-off-by: Paul Cercueil <paul@crapouillou.net>
>> > Tested-by: Artur Rojek <contact@artur-rojek.eu>
>> > ---
>>
>> Queued for usb-next. Thanks.
>
> I removed this and the next patch [3/7] in this series from my queue.
> Sorry. Ming Guo has posted a series "Add MediaTek MUSB Controller
> Driver" which has done the similar implementation [1] but without
> adding
> the flag in struct musb. Can you please check if you can use Ming's
> implementation instead? The patch of his musb glue driver which uses
> the
> implementation is [2], just for your reference.

Sure. Were these patches merged? What tree do they apply to? They don't
apply cleanly on -rc2.

-Paul

>
> [1] https://marc.info/?l=linux-usb&m=157602930627195&w=2
> [2] https://marc.info/?l=linux-usb&m=157602932427210&w=2
>
> Thanks,
> -Bin.