Hi Robin, I am seeing SPI DMA failure on i.MX8MM running kernel 5.13.0-rc5: [ 41.315984] spi_master spi1: I/O Error in DMA RX [ 41.320660] mcp251xfd spi1.0: SPI transfer failed: -110 [ 41.325947] spi_master spi1: failed to transfer one message from queue [ 41.332532] mcp251xfd spi1.0 can0: IRQ handler mcp251xfd_handle_rxif() returned -110. [ 41.340432] mcp251xfd spi1.0 can0: IRQ handler returned -110 (intf=0x3f1a0012). [ 41.347990] spi_master spi2: I/O Error in DMA RX There is an old series from you that aimed to fix i.MX8MM SPI DMA: https://patchwork.kernel.org/project/spi-devel-general/patch/1593523876-22387-6-git-send-email-yibin.gong@xxxxxxx/ Do you have an updated tree with these patches applied so I can test them with a recent kernel? Besides the imx-sdma and imx-spi fixes, do we need an updated sdma-imx7d.bin for SPI DMA to work on i.MX8MM? I am using the one from the linux-firmware tree: https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/log/imx/sdma/sdma-imx7d.bin Would it work if a use the ROM firmware or would you recommend using the external firmware? Please advise. Thanks, Fabio Estevam
