V3-changes: - Fixed below AI comments: - Dead quote-stripping removed (`of_device_is_compatible`) - Redundant `goto out` removed - New Features entry added for bus platform changes. - Scatter-gather doc corrected in both sections - Unused CH_MATTR macros removed - Fixed SG sub-transfer length cap (`imx_edma5_copy_sg`) - Updated Per-job timeout logic. - Updated `rte_mem_iova2virt` per-op in IOVA=VA mode logic - Updated comments and documentation as per the AI comments. V2-changes: - Added dependent patch: bus/platform: match device by devicetree compatible string - Fixed multiple AI reported issues includes: - removed the alias from the driver, no need of it - removed imx_edma5_write32 from data-path, reported as coherency concern. - fix submit for previously enqueued jobs. - Added dsb in data path - Added a commnet for rte_mem_iova2virt() NULL behaviour. - Fixed: TCD NBYTES bits 31:30 are SMLOE/DMLOE — full 32-bit length corrupts them - Data path is fully synchronous: Acknowledged but intentionally deferred — the synchronous design is a deliberate simplification for the initial upstream submission. Noted in docs. - In-memory TCD64 pool is more complex than needed: Noted/deferred — the pool structure was retained for forward compatibility with hardware SG chaining. - Extended `imx_edma5_dump()` to read and print `CH_CSR` and `CH_ES` registers for every configured vchan. - Double and stary lines removed. V1: This patch series adds a new dmadev Poll-Mode Driver (PMD) for the NXP i.MX95 eDMA5 (Enhanced DMA Type 5) controller. Key features supported by this driver: - Memory-to-memory copy (RTE_DMA_OP_TYPE_MEMCPY) - Scatter-gather memory copy (RTE_DMA_OP_TYPE_SG) - 64-bit TCD (Transfer Control Descriptor) format - Non-coherent DMA with explicit cache clean/invalidate - Per-channel statistics and register dump for debug Patch breakdown: [1/4] Skeleton: bus probe/remove, dmadev registration, MAINTAINERS, doc index, and release notes for 26.11. [2/4] Device configuration: vchan setup, TCD ring allocation, start/stop, and capability reporting. [3/4] Data path: enqueue (copy and sg), doorbell, completion poll. [4/4] Statistics and dump: per-channel counters and register dump. Tested on NXP i.MX95 EVK with vfio-platform. Gagandeep Singh (5): bus/platform: match device by devicetree compatible string dma/imx_edma5: introduce eDMA5 dmadev skeleton dma/imx_edma5: add device configuration dma/imx_edma5: add data path dma/imx_edma5: add statistics and dump MAINTAINERS | 5 + doc/guides/dmadevs/imx_edma5.rst | 69 ++ doc/guides/dmadevs/index.rst | 1 + doc/guides/rel_notes/release_26_11.rst | 15 + drivers/bus/platform/bus_platform_driver.h | 3 +- drivers/bus/platform/platform.c | 52 +- drivers/dma/imx_edma5/imx_edma5_dmadev.c | 1190 ++++++++++++++++++++ drivers/dma/imx_edma5/imx_edma5_dmadev.h | 234 ++++ drivers/dma/imx_edma5/imx_edma5_hw.h | 144 +++ drivers/dma/imx_edma5/imx_edma5_logs.h | 16 + drivers/dma/imx_edma5/meson.build | 10 + drivers/dma/meson.build | 1 + 12 files changed, 1738 insertions(+), 2 deletions(-) create mode 100644 doc/guides/dmadevs/imx_edma5.rst create mode 100644 drivers/dma/imx_edma5/imx_edma5_dmadev.c create mode 100644 drivers/dma/imx_edma5/imx_edma5_dmadev.h create mode 100644 drivers/dma/imx_edma5/imx_edma5_hw.h create mode 100644 drivers/dma/imx_edma5/imx_edma5_logs.h create mode 100644 drivers/dma/imx_edma5/meson.build -- 2.25.1