1 // SPDX-License-Identifier: GPL-2.0-only
3  * rbtx4939-flash (based on physmap.c)
5  * This is a simplified physmap driver with map_init callback function.
34 	if (info->mtd) {  in rbtx4939_flash_remove()
35 		mtd_device_unregister(info->mtd);  in rbtx4939_flash_remove()
36 		map_destroy(info->mtd);  in rbtx4939_flash_remove()
53 	pdata = dev_get_platdata(&dev->dev);  in rbtx4939_flash_probe()
55 		return -ENODEV;  in rbtx4939_flash_probe()
59 		return -ENODEV;  in rbtx4939_flash_probe()
60 	info = devm_kzalloc(&dev->dev, sizeof(struct rbtx4939_flash_info),  in rbtx4939_flash_probe()
63 		return -ENOMEM;  in rbtx4939_flash_probe()
68 	pr_notice("rbtx4939 platform flash device: %pR\n", res);  in rbtx4939_flash_probe()
70 	if (!devm_request_mem_region(&dev->dev, res->start, size,  in rbtx4939_flash_probe()
71 				     dev_name(&dev->dev)))  in rbtx4939_flash_probe()
72 		return -EBUSY;  in rbtx4939_flash_probe()
74 	info->map.name = dev_name(&dev->dev);  in rbtx4939_flash_probe()
75 	info->map.phys = res->start;  in rbtx4939_flash_probe()
76 	info->map.size = size;  in rbtx4939_flash_probe()
77 	info->map.bankwidth = pdata->width;  in rbtx4939_flash_probe()
79 	info->map.virt = devm_ioremap(&dev->dev, info->map.phys, size);  in rbtx4939_flash_probe()
80 	if (!info->map.virt)  in rbtx4939_flash_probe()
81 		return -EBUSY;  in rbtx4939_flash_probe()
83 	if (pdata->map_init)  in rbtx4939_flash_probe()
84 		(*pdata->map_init)(&info->map);  in rbtx4939_flash_probe()
86 		simple_map_init(&info->map);  in rbtx4939_flash_probe()
89 	for (; !info->mtd && *probe_type; probe_type++)  in rbtx4939_flash_probe()
90 		info->mtd = do_map_probe(*probe_type, &info->map);  in rbtx4939_flash_probe()
91 	if (!info->mtd) {  in rbtx4939_flash_probe()
92 		dev_err(&dev->dev, "map_probe failed\n");  in rbtx4939_flash_probe()
93 		err = -ENXIO;  in rbtx4939_flash_probe()
96 	info->mtd->dev.parent = &dev->dev;  in rbtx4939_flash_probe()
97 	err = mtd_device_register(info->mtd, pdata->parts, pdata->nr_parts);  in rbtx4939_flash_probe()
113 	if (mtd_suspend(info->mtd) == 0)  in rbtx4939_flash_shutdown()
114 		mtd_resume(info->mtd);  in rbtx4939_flash_shutdown()
125 		.name	= "rbtx4939-flash",
133 MODULE_ALIAS("platform:rbtx4939-flash");