Re: [PATCH v2 4/6] dmaengine: dw: Print warning if multi-block is unsupported

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Mon, May 11, 2020 at 04:58:53PM +0300, Andy Shevchenko wrote:
> On Mon, May 11, 2020 at 4:48 PM Serge Semin

> > So the question is of how to export the multi-block LLP flag from DW DMAc
> > driver. Andy?

> I'm not sure I understand why do you need this being exported. Just
> always supply SG list out of single entry and define the length
> according to the maximum segment size (it's done IIRC in SPI core).

If there's a limit from the dmaengine it'd be a bit cleaner to export
the limit from the DMA engine (and it'd help with code reuse for clients
that might work with other DMA controllers without needing to add custom
compatibles for those instantiations).

Attachment: signature.asc
Description: PGP signature


[Index of Archives]     [Linux Kernel]     [Linux ARM (vger)]     [Linux ARM MSM]     [Linux Omap]     [Linux Arm]     [Linux Tegra]     [Fedora ARM]     [Linux for Samsung SOC]     [eCos]     [Linux PCI]     [Linux Fastboot]     [Gcc Help]     [Git]     [DCCP]     [IETF Announce]     [Security]     [Linux MIPS]     [Yosemite Campsites]

  Powered by Linux