334 	struct aspeed_p2a_ctrl *misc_ctrl;  in aspeed_p2a_ctrl_probe()  local
342 	misc_ctrl = devm_kzalloc(dev, sizeof(*misc_ctrl), GFP_KERNEL);  in aspeed_p2a_ctrl_probe()
343 	if (!misc_ctrl)  in aspeed_p2a_ctrl_probe()
346 	mutex_init(&misc_ctrl->tracking);  in aspeed_p2a_ctrl_probe()
358 		misc_ctrl->mem_size = resource_size(&resm);  in aspeed_p2a_ctrl_probe()
359 		misc_ctrl->mem_base = resm.start;  in aspeed_p2a_ctrl_probe()
362 	misc_ctrl->regmap = syscon_node_to_regmap(pdev->dev.parent->of_node);  in aspeed_p2a_ctrl_probe()
363 	if (IS_ERR(misc_ctrl->regmap)) {  in aspeed_p2a_ctrl_probe()
368 	misc_ctrl->config = of_device_get_match_data(dev);  in aspeed_p2a_ctrl_probe()
370 	dev_set_drvdata(&pdev->dev, misc_ctrl);  in aspeed_p2a_ctrl_probe()
372 	aspeed_p2a_disable_all(misc_ctrl);  in aspeed_p2a_ctrl_probe()
374 	misc_ctrl->miscdev.minor = MISC_DYNAMIC_MINOR;  in aspeed_p2a_ctrl_probe()
375 	misc_ctrl->miscdev.name = DEVICE_NAME;  in aspeed_p2a_ctrl_probe()
376 	misc_ctrl->miscdev.fops = &aspeed_p2a_ctrl_fops;  in aspeed_p2a_ctrl_probe()
377 	misc_ctrl->miscdev.parent = dev;  in aspeed_p2a_ctrl_probe()
379 	rc = misc_register(&misc_ctrl->miscdev);  in aspeed_p2a_ctrl_probe()