1// SPDX-License-Identifier: GPL-2.0-or-later
 2/*
 3 * Instantiate mmio-mapped RTC chips based on device tree information
 4 *
 5 * Copyright 2007 David Gibson <dwg@au1.ibm.com>, IBM Corporation.
 
 
 
 
 
 6 */
 7#include <linux/kernel.h>
 8#include <linux/init.h>
 9#include <linux/of.h>
10#include <linux/of_address.h>
11#include <linux/platform_device.h>
12#include <linux/slab.h>
13
14#include <asm/prom.h>
15
16static __initdata struct {
17	const char *compatible;
18	char *plat_name;
19} of_rtc_table[] = {
20	{ "ds1743-nvram", "rtc-ds1742" },
21};
22
23void __init of_instantiate_rtc(void)
24{
25	struct device_node *node;
26	int err;
27	int i;
28
29	for (i = 0; i < ARRAY_SIZE(of_rtc_table); i++) {
30		char *plat_name = of_rtc_table[i].plat_name;
31
32		for_each_compatible_node(node, NULL,
33					 of_rtc_table[i].compatible) {
34			struct resource *res;
35
36			res = kmalloc(sizeof(*res), GFP_KERNEL);
37			if (!res) {
38				printk(KERN_ERR "OF RTC: Out of memory "
39				       "allocating resource structure for %pOF\n",
40				       node);
41				continue;
42			}
43
44			err = of_address_to_resource(node, 0, res);
45			if (err) {
46				printk(KERN_ERR "OF RTC: Error "
47				       "translating resources for %pOF\n",
48				       node);
49				continue;
50			}
51
52			printk(KERN_INFO "OF_RTC: %pOF is a %s @ 0x%llx-0x%llx\n",
53			       node, plat_name,
54			       (unsigned long long)res->start,
55			       (unsigned long long)res->end);
56			platform_device_register_simple(plat_name, -1, res, 1);
57		}
58	}
59}

 
 1/*
 2 * Instantiate mmio-mapped RTC chips based on device tree information
 3 *
 4 * Copyright 2007 David Gibson <dwg@au1.ibm.com>, IBM Corporation.
 5 *
 6 * This program is free software; you can redistribute  it and/or modify it
 7 * under  the terms of  the GNU General  Public License as published by the
 8 * Free Software Foundation;  either version 2 of the  License, or (at your
 9 * option) any later version.
10 */
11#include <linux/kernel.h>
 
12#include <linux/of.h>
13#include <linux/init.h>
14#include <linux/of_platform.h>
15#include <linux/slab.h>
16
 
 
17static __initdata struct {
18	const char *compatible;
19	char *plat_name;
20} of_rtc_table[] = {
21	{ "ds1743-nvram", "rtc-ds1742" },
22};
23
24void __init of_instantiate_rtc(void)
25{
26	struct device_node *node;
27	int err;
28	int i;
29
30	for (i = 0; i < ARRAY_SIZE(of_rtc_table); i++) {
31		char *plat_name = of_rtc_table[i].plat_name;
32
33		for_each_compatible_node(node, NULL,
34					 of_rtc_table[i].compatible) {
35			struct resource *res;
36
37			res = kmalloc(sizeof(*res), GFP_KERNEL);
38			if (!res) {
39				printk(KERN_ERR "OF RTC: Out of memory "
40				       "allocating resource structure for %s\n",
41				       node->full_name);
42				continue;
43			}
44
45			err = of_address_to_resource(node, 0, res);
46			if (err) {
47				printk(KERN_ERR "OF RTC: Error "
48				       "translating resources for %s\n",
49				       node->full_name);
50				continue;
51			}
52
53			printk(KERN_INFO "OF_RTC: %s is a %s @ 0x%llx-0x%llx\n",
54			       node->full_name, plat_name,
55			       (unsigned long long)res->start,
56			       (unsigned long long)res->end);
57			platform_device_register_simple(plat_name, -1, res, 1);
58		}
59	}
60}