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Based on 1 normalized pattern(s): 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
88 lines
2 KiB
C
88 lines
2 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (C) 2007 PA Semi, Inc
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*
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* Parts based on arch/powerpc/sysdev/fsl_soc.c:
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*
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* 2006 (c) MontaVista Software, Inc.
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*/
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#include <linux/errno.h>
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#include <linux/kernel.h>
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#include <linux/pci.h>
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#include <linux/of.h>
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#include <linux/i2c.h>
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#ifdef CONFIG_I2C_BOARDINFO
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/* The below is from fsl_soc.c. It's copied because since there are no
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* official bus bindings at this time it doesn't make sense to share across
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* the platforms, even though they happen to be common.
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*/
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struct i2c_driver_device {
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char *of_device;
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char *i2c_type;
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};
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static struct i2c_driver_device i2c_devices[] __initdata = {
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{"dallas,ds1338", "ds1338"},
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};
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static int __init find_i2c_driver(struct device_node *node,
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struct i2c_board_info *info)
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{
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int i;
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for (i = 0; i < ARRAY_SIZE(i2c_devices); i++) {
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if (!of_device_is_compatible(node, i2c_devices[i].of_device))
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continue;
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if (strlcpy(info->type, i2c_devices[i].i2c_type,
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I2C_NAME_SIZE) >= I2C_NAME_SIZE)
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return -ENOMEM;
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return 0;
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}
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return -ENODEV;
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}
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static int __init pasemi_register_i2c_devices(void)
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{
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struct pci_dev *pdev;
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struct device_node *adap_node;
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struct device_node *node;
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pdev = NULL;
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while ((pdev = pci_get_device(PCI_VENDOR_ID_PASEMI, 0xa003, pdev))) {
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adap_node = pci_device_to_OF_node(pdev);
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if (!adap_node)
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continue;
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node = NULL;
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while ((node = of_get_next_child(adap_node, node))) {
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struct i2c_board_info info = {};
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const u32 *addr;
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int len;
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addr = of_get_property(node, "reg", &len);
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if (!addr || len < sizeof(int) ||
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*addr > (1 << 10) - 1) {
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pr_warn("pasemi_register_i2c_devices: invalid i2c device entry\n");
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continue;
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}
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info.irq = irq_of_parse_and_map(node, 0);
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if (!info.irq)
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info.irq = -1;
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if (find_i2c_driver(node, &info) < 0)
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continue;
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info.addr = *addr;
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i2c_register_board_info(PCI_FUNC(pdev->devfn), &info,
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1);
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}
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}
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return 0;
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}
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device_initcall(pasemi_register_i2c_devices);
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#endif
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