1 // SPDX-License-Identifier: GPL-2.0-only
14 #include "mcb-internal.h"
18 	struct resource *mem;  member
19 	void __iomem *base;  member
28 	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);  in mcb_lpc_probe()
30 		return -ENOMEM;  in mcb_lpc_probe()
32 	priv->mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);  in mcb_lpc_probe()
33 	if (!priv->mem) {  in mcb_lpc_probe()
34 		dev_err(&pdev->dev, "No Memory resource\n");  in mcb_lpc_probe()
35 		return -ENODEV;  in mcb_lpc_probe()
38 	res = devm_request_mem_region(&pdev->dev, priv->mem->start,  in mcb_lpc_probe()
39 				      resource_size(priv->mem),  in mcb_lpc_probe()
42 		dev_err(&pdev->dev, "Failed to request IO memory\n");  in mcb_lpc_probe()
43 		return -EBUSY;  in mcb_lpc_probe()
46 	priv->base = devm_ioremap(&pdev->dev, priv->mem->start,  in mcb_lpc_probe()
47 				  resource_size(priv->mem));  in mcb_lpc_probe()
48 	if (!priv->base) {  in mcb_lpc_probe()
49 		dev_err(&pdev->dev, "Cannot ioremap\n");  in mcb_lpc_probe()
50 		return -ENOMEM;  in mcb_lpc_probe()
55 	priv->bus = mcb_alloc_bus(&pdev->dev);  in mcb_lpc_probe()
56 	if (IS_ERR(priv->bus))  in mcb_lpc_probe()
57 		return PTR_ERR(priv->bus);  in mcb_lpc_probe()
59 	ret = chameleon_parse_cells(priv->bus, priv->mem->start, priv->base);  in mcb_lpc_probe()
68 		devm_iounmap(&pdev->dev, priv->base);  in mcb_lpc_probe()
69 		devm_release_mem_region(&pdev->dev, priv->mem->start, resource_size(priv->mem));  in mcb_lpc_probe()
72 		res = devm_request_mem_region(&pdev->dev, priv->mem->start,  in mcb_lpc_probe()
76 			dev_err(&pdev->dev, "Failed to request PCI memory\n");  in mcb_lpc_probe()
77 			ret = -EBUSY;  in mcb_lpc_probe()
81 		priv->base = devm_ioremap(&pdev->dev, priv->mem->start, table_size);  in mcb_lpc_probe()
82 		if (!priv->base) {  in mcb_lpc_probe()
83 			dev_err(&pdev->dev, "Cannot ioremap\n");  in mcb_lpc_probe()
84 			ret = -ENOMEM;  in mcb_lpc_probe()
91 	mcb_bus_add_devices(priv->bus);  in mcb_lpc_probe()
96 	mcb_release_bus(priv->bus);  in mcb_lpc_probe()
104 	mcb_release_bus(priv->bus);  in mcb_lpc_remove()
111 	struct resource *res = id->driver_data;  in mcb_lpc_create_platform_device()
114 	mcb_lpc_pdev = platform_device_alloc("mcb-lpc", -1);  in mcb_lpc_create_platform_device()
116 		return -ENOMEM;  in mcb_lpc_create_platform_device()
138 		.name = "mcb-lpc",
170 		return -ENODEV;  in mcb_lpc_init()