/* * Copyright (C) 2007 PA Semi, Inc * * Parts based on arch/powerpc/sysdev/fsl_soc.c: * * 2006 (c) MontaVista Software, Inc. * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2 of the License, or (at your * option) any later version. */ #include <linux/errno.h> #include <linux/kernel.h> #include <linux/pci.h> #include <linux/of.h> #include <linux/i2c.h> #ifdef CONFIG_I2C_BOARDINFO /* The below is from fsl_soc.c. It's copied because since there are no * official bus bindings at this time it doesn't make sense to share across * the platforms, even though they happen to be common. */ struct i2c_driver_device { char *of_device; char *i2c_type; }; static struct i2c_driver_device i2c_devices[] __initdata = { {"dallas,ds1338", "ds1338"}, }; static int __init find_i2c_driver(struct device_node *node, struct i2c_board_info *info) { int i; for (i = 0; i < ARRAY_SIZE(i2c_devices); i++) { if (!of_device_is_compatible(node, i2c_devices[i].of_device)) continue; if (strlcpy(info->type, i2c_devices[i].i2c_type, I2C_NAME_SIZE) >= I2C_NAME_SIZE) return -ENOMEM; return 0; } return -ENODEV; } static int __init pasemi_register_i2c_devices(void) { struct pci_dev *pdev; struct device_node *adap_node; struct device_node *node; pdev = NULL; while ((pdev = pci_get_device(PCI_VENDOR_ID_PASEMI, 0xa003, pdev))) { adap_node = pci_device_to_OF_node(pdev); if (!adap_node) continue; node = NULL; while ((node = of_get_next_child(adap_node, node))) { struct i2c_board_info info = {}; const u32 *addr; int len; addr = of_get_property(node, "reg", &len); if (!addr || len < sizeof(int) || *addr > (1 << 10) - 1) { pr_warn("pasemi_register_i2c_devices: invalid i2c device entry\n"); continue; } info.irq = irq_of_parse_and_map(node, 0); if (!info.irq) info.irq = -1; if (find_i2c_driver(node, &info) < 0) continue; info.addr = *addr; i2c_register_board_info(PCI_FUNC(pdev->devfn), &info, 1); } } return 0; } device_initcall(pasemi_register_i2c_devices); #endif