Hi, On Wednesday, February 24, 2016 02:01:59 PM Caesar Wang wrote: > Hi, > > Thanks Dinh & Alexander for the intergration testing. > > --- > > @Dinh, > > Can you test it again with the patch[0]? > > patch[0]: > https://patchwork.kernel.org/patch/8398511/ This fixes the problem for me (tested on Samsung Exynos4412 SoC based Trats2 board). You may add: Tested-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@xxxxxxxxxxx> to your patch. Best regards, -- Bartlomiej Zolnierkiewicz Samsung R&D Institute Poland Samsung Electronics > - > Caesar > 在 2016年02月23日 23:14, Dinh Nguyen 写道: > > Hi, > > > > Sorry that I couldn't get to this sooner. > > > > On 02/18/2016 10:07 AM, Alexander Kochetkov wrote: > >> Hello! > >> > >> Bartlomiej, could you please tell what uart driver is used on Samsung > >> Exynos4412? > >> Dinh, could you please tell what uart driver is used on SoCFPGA? > >> > > SoCFPGA is using the 8250_dw.c uart driver. > > > >> Could you make two test? > >> > >> 1) Checkout tree at commit 848e9776fee4 "dmaengine: pl330: support > >> burst mode for > >> dev-to-mem and mem-to-dev transmit", make it buildable and see is it > >> works. In order to make in buildable remove bursts argument from the > >> line: > >> > >> if (*bursts == 1) > >> - return _bursts(pl330, dry_run, buf, pxs, 1); > >> + return _bursts(dry_run, buf, pxs, 1); > >> > > This case still fails for me. > > > >> 2) Checkout next-20160211 kernel tree and set src_maxburst and > >> dst_maxburst to 1 inside UART driver to see is it works? > >> > > This case works and the UART is able to operate in DMA mode. > > > > Dinh -- To unsubscribe from this list: send the line "unsubscribe dmaengine" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
