1// SPDX-License-Identifier: GPL-2.0-only
 2/* Copyright (c) 2013, The Linux Foundation. All rights reserved.
 3 */
 4
 5#include <linux/delay.h>
 6#include <linux/err.h>
 7#include <linux/init.h>
 8#include <linux/kernel.h>
 9#include <linux/io.h>
10#include <linux/of.h>
11#include <linux/platform_device.h>
12#include <linux/module.h>
13#include <linux/reboot.h>
14#include <linux/pm.h>
15
16static void __iomem *msm_ps_hold;
17static int deassert_pshold(struct notifier_block *nb, unsigned long action,
18			   void *data)
19{
20	writel(0, msm_ps_hold);
21	mdelay(10000);
22
23	return NOTIFY_DONE;
24}
25
26static struct notifier_block restart_nb = {
27	.notifier_call = deassert_pshold,
28	.priority = 128,
29};
30
31static void do_msm_poweroff(void)
32{
33	deassert_pshold(&restart_nb, 0, NULL);
34}
35
36static int msm_restart_probe(struct platform_device *pdev)
37{
38	msm_ps_hold = devm_platform_ioremap_resource(pdev, 0);
 
 
 
 
39	if (IS_ERR(msm_ps_hold))
40		return PTR_ERR(msm_ps_hold);
41
42	register_restart_handler(&restart_nb);
43
44	pm_power_off = do_msm_poweroff;
45
46	return 0;
47}
48
49static const struct of_device_id of_msm_restart_match[] = {
50	{ .compatible = "qcom,pshold", },
51	{},
52};
53MODULE_DEVICE_TABLE(of, of_msm_restart_match);
54
55static struct platform_driver msm_restart_driver = {
56	.probe = msm_restart_probe,
57	.driver = {
58		.name = "msm-restart",
59		.of_match_table = of_match_ptr(of_msm_restart_match),
60	},
61};
62builtin_platform_driver(msm_restart_driver);
 
 
 
 
 

 1// SPDX-License-Identifier: GPL-2.0-only
 2/* Copyright (c) 2013, The Linux Foundation. All rights reserved.
 3 */
 4
 5#include <linux/delay.h>
 6#include <linux/err.h>
 7#include <linux/init.h>
 8#include <linux/kernel.h>
 9#include <linux/io.h>
10#include <linux/of.h>
11#include <linux/platform_device.h>
12#include <linux/module.h>
13#include <linux/reboot.h>
14#include <linux/pm.h>
15
16static void __iomem *msm_ps_hold;
17static int deassert_pshold(struct notifier_block *nb, unsigned long action,
18			   void *data)
19{
20	writel(0, msm_ps_hold);
21	mdelay(10000);
22
23	return NOTIFY_DONE;
24}
25
26static struct notifier_block restart_nb = {
27	.notifier_call = deassert_pshold,
28	.priority = 128,
29};
30
31static void do_msm_poweroff(void)
32{
33	deassert_pshold(&restart_nb, 0, NULL);
34}
35
36static int msm_restart_probe(struct platform_device *pdev)
37{
38	struct device *dev = &pdev->dev;
39	struct resource *mem;
40
41	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
42	msm_ps_hold = devm_ioremap_resource(dev, mem);
43	if (IS_ERR(msm_ps_hold))
44		return PTR_ERR(msm_ps_hold);
45
46	register_restart_handler(&restart_nb);
47
48	pm_power_off = do_msm_poweroff;
49
50	return 0;
51}
52
53static const struct of_device_id of_msm_restart_match[] = {
54	{ .compatible = "qcom,pshold", },
55	{},
56};
57MODULE_DEVICE_TABLE(of, of_msm_restart_match);
58
59static struct platform_driver msm_restart_driver = {
60	.probe = msm_restart_probe,
61	.driver = {
62		.name = "msm-restart",
63		.of_match_table = of_match_ptr(of_msm_restart_match),
64	},
65};
66
67static int __init msm_restart_init(void)
68{
69	return platform_driver_register(&msm_restart_driver);
70}
71device_initcall(msm_restart_init);