Re: [PATCH] dmaengine: cppi41: Fix issue with musb and ftdi uart

2019-10-23 Thread Tony Lindgren
* Vinod Koul [191023 04:54]: > Hi Tony, > > On 22-10-19, 07:55, Tony Lindgren wrote: > > Patch subject should reflect the patch changes not the fix. The patch > title here is not telling me anything about the change below. Pls > consider updating the title. Sure, I'll resend with updated descri

Re: [PATCH] dmaengine: cppi41: Fix issue with musb and ftdi uart

2019-10-22 Thread Vinod Koul
Hi Tony, On 22-10-19, 07:55, Tony Lindgren wrote: Patch subject should reflect the patch changes not the fix. The patch title here is not telling me anything about the change below. Pls consider updating the title. > The first dma call done by musb_ep_program() must wait if cppi41 is PM > runtim

[PATCH] dmaengine: cppi41: Fix issue with musb and ftdi uart

2019-10-22 Thread Tony Lindgren
The first dma call done by musb_ep_program() must wait if cppi41 is PM runtime suspended. Otherwise musb_ep_program() continues with other non-dma packets before the DMA transfer is started causing at least ftdi uarts to fail to receive data. Let's fix the issue by waking up cppi41 with PM runtime