// SPDX-License-Identifier: GPL-2.0-or-later/* * Instantiate mmio-mapped RTC chips based on device tree information * * Copyright 2007 David Gibson <dwg@au1.ibm.com>, IBM Corporation. */#include <linux/kernel.h>#include <linux/init.h>#include <linux/of.h>#include <linux/of_address.h>#include <linux/platform_device.h>#include <linux/slab.h> #include <asm/prom.h> static __initdata struct { const char *compatible; char *plat_name;} of_rtc_table[] = { { "ds1743-nvram", "rtc-ds1742" },}; void __init of_instantiate_rtc(void){ struct device_node *node; int err; int i; for (i = 0; i < ARRAY_SIZE(of_rtc_table); i++) { char *plat_name = of_rtc_table[i].plat_name; for_each_compatible_node(node, NULL, of_rtc_table[i].compatible) { struct resource *res; res = kmalloc_obj(*res); if (!res) { printk(KERN_ERR "OF RTC: Out of memory " "allocating resource structure for %pOF\n", node); continue; } err = of_address_to_resource(node, 0, res); if (err) { printk(KERN_ERR "OF RTC: Error " "translating resources for %pOF\n", node); continue; } printk(KERN_INFO "OF_RTC: %pOF is a %s @ 0x%llx-0x%llx\n", node, plat_name, (unsigned long long)res->start, (unsigned long long)res->end); platform_device_register_simple(plat_name, -1, res, 1); } }}
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Instantiate mmio-mapped RTC chips based on device tree information
*
* Copyright 2007 David Gibson <dwg@au1.ibm.com>, IBM Corporation.
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <asm/prom.h>
static __initdata struct {
const char *compatible;
char *plat_name;
} of_rtc_table[] = {
{ "ds1743-nvram", "rtc-ds1742" },
};
void __init of_instantiate_rtc(void)
{
struct device_node *node;
int err;
int i;
for (i = 0; i < ARRAY_SIZE(of_rtc_table); i++) {
char *plat_name = of_rtc_table[i].plat_name;
for_each_compatible_node(node, NULL,
of_rtc_table[i].compatible) {
struct resource *res;
res = kmalloc_obj(*res);
if (!res) {
printk(KERN_ERR "OF RTC: Out of memory "
"allocating resource structure for %pOF\n",
node);
continue;
}
err = of_address_to_resource(node, 0, res);
if (err) {
printk(KERN_ERR "OF RTC: Error "
"translating resources for %pOF\n",
node);
continue;
}
printk(KERN_INFO "OF_RTC: %pOF is a %s @ 0x%llx-0x%llx\n",
node, plat_name,
(unsigned long long)res->start,
(unsigned long long)res->end);
platform_device_register_simple(plat_name, -1, res, 1);
}
}
}