Hi Robin, Am Dienstag, den 06.11.2018, 03:40 +0000 schrieb Robin Gong: > This patch set to correct dma pool used in the commit fe5b85c656bc > ("dmaengine: imx-sdma: alloclate bd memory from dma pool") > because all bds should be contiguous in memory in multi bds case > for sdma, but dma pool can't statify it and cause transfer failure > then.Thank Lucas for the making things on the right way. > > This patch set is v3 based on Lucas's V1/V2, the main refine: > --fix the issue I reported in V1 but Lucas workaround it by improper > way in V2. > --add vchan_synchronize() to kill tasklet in virt-dma internal. > --refine name: use sdma_disable_channel_async instead of > sdma_disable_channel_with_delay since no delay indeed for > device_terminate_all. > Please refer to below link for more information: > https://patchwork.kernel.org/patch/10601111 Thanks for taking care of those. I've tested them on my board and things seem to work fine for all my use-cases. I think those patches should get a CC to stable 4.19. I guess Vinod can add this when applying the patchset. Regards, Lucas