On 08-07-20, 23:19, Laurent Pinchart wrote: > +static int xilinx_dpdma_debugfs_init(struct device *dev) > +{ > + int err; > + struct dentry *xilinx_dpdma_debugfs_dir, *xilinx_dpdma_debugfs_file; > + > + dpdma_debugfs.testcase = DPDMA_TC_NONE; > + > + xilinx_dpdma_debugfs_dir = debugfs_create_dir("dpdma", NULL); can you please use the dma_dev->dbg_dev_root, we are already creating /sys/kernel/debug/dmaengine/<device>/ -- ~Vinod