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// 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/of.h>
 9#include <linux/init.h>
10#include <linux/of_address.h>
11#include <linux/of_platform.h>
12#include <linux/slab.h>
 
 
13
14static __initdata struct {
15	const char *compatible;
16	char *plat_name;
17} of_rtc_table[] = {
18	{ "ds1743-nvram", "rtc-ds1742" },
19};
20
21void __init of_instantiate_rtc(void)
22{
23	struct device_node *node;
24	int err;
25	int i;
26
27	for (i = 0; i < ARRAY_SIZE(of_rtc_table); i++) {
28		char *plat_name = of_rtc_table[i].plat_name;
29
30		for_each_compatible_node(node, NULL,
31					 of_rtc_table[i].compatible) {
32			struct resource *res;
33
34			res = kmalloc(sizeof(*res), GFP_KERNEL);
35			if (!res) {
36				printk(KERN_ERR "OF RTC: Out of memory "
37				       "allocating resource structure for %pOF\n",
38				       node);
39				continue;
40			}
41
42			err = of_address_to_resource(node, 0, res);
43			if (err) {
44				printk(KERN_ERR "OF RTC: Error "
45				       "translating resources for %pOF\n",
46				       node);
47				continue;
48			}
49
50			printk(KERN_INFO "OF_RTC: %pOF is a %s @ 0x%llx-0x%llx\n",
51			       node, plat_name,
52			       (unsigned long long)res->start,
53			       (unsigned long long)res->end);
54			platform_device_register_simple(plat_name, -1, res, 1);
55		}
56	}
57}