1/*
 2 * Runtime PM support code
 3 *
 4 *  Copyright (C) 2009-2010 Magnus Damm
 5 *
 6 * This file is subject to the terms and conditions of the GNU General Public
 7 * License.  See the file "COPYING" in the main directory of this archive
 8 * for more details.
 9 */
10
11#include <linux/init.h>
12#include <linux/kernel.h>
13#include <linux/io.h>
14#include <linux/pm_runtime.h>
15#include <linux/pm_domain.h>
16#include <linux/pm_clock.h>
17#include <linux/platform_device.h>
18#include <linux/clk.h>
19#include <linux/sh_clk.h>
20#include <linux/bitmap.h>
21#include <linux/slab.h>
22
 
 
 
 
 
 
 
 
23static struct dev_pm_domain default_pm_domain = {
24	.ops = {
25		USE_PM_CLK_RUNTIME_OPS
 
 
26		USE_PLATFORM_PM_SLEEP_OPS
27	},
28};
29
 
 
 
 
 
 
 
 
30static struct pm_clk_notifier_block platform_bus_notifier = {
31	.pm_domain = &default_pm_domain,
32	.con_ids = { NULL, },
33};
34
 
 
35static int __init sh_pm_runtime_init(void)
36{
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
37	pm_clk_add_notifier(&platform_bus_type, &platform_bus_notifier);
38	return 0;
39}
40core_initcall(sh_pm_runtime_init);

 1/*
 2 * Runtime PM support code
 3 *
 4 *  Copyright (C) 2009-2010 Magnus Damm
 5 *
 6 * This file is subject to the terms and conditions of the GNU General Public
 7 * License.  See the file "COPYING" in the main directory of this archive
 8 * for more details.
 9 */
10
11#include <linux/init.h>
12#include <linux/kernel.h>
13#include <linux/io.h>
14#include <linux/pm_runtime.h>
15#include <linux/pm_domain.h>
16#include <linux/pm_clock.h>
17#include <linux/platform_device.h>
18#include <linux/clk.h>
19#include <linux/sh_clk.h>
20#include <linux/bitmap.h>
21#include <linux/slab.h>
22
23#ifdef CONFIG_PM_RUNTIME
24
25static int default_platform_runtime_idle(struct device *dev)
26{
27	/* suspend synchronously to disable clocks immediately */
28	return 0;
29}
30
31static struct dev_pm_domain default_pm_domain = {
32	.ops = {
33		.runtime_suspend = pm_clk_suspend,
34		.runtime_resume = pm_clk_resume,
35		.runtime_idle = default_platform_runtime_idle,
36		USE_PLATFORM_PM_SLEEP_OPS
37	},
38};
39
40#define DEFAULT_PM_DOMAIN_PTR	(&default_pm_domain)
41
42#else
43
44#define DEFAULT_PM_DOMAIN_PTR	NULL
45
46#endif /* CONFIG_PM_RUNTIME */
47
48static struct pm_clk_notifier_block platform_bus_notifier = {
49	.pm_domain = DEFAULT_PM_DOMAIN_PTR,
50	.con_ids = { NULL, },
51};
52
53static bool default_pm_on;
54
55static int __init sh_pm_runtime_init(void)
56{
57	if (IS_ENABLED(CONFIG_ARCH_SHMOBILE_MULTI)) {
58		if (!of_machine_is_compatible("renesas,emev2") &&
59		    !of_machine_is_compatible("renesas,r7s72100") &&
60		    !of_machine_is_compatible("renesas,r8a73a4") &&
61		    !of_machine_is_compatible("renesas,r8a7740") &&
62		    !of_machine_is_compatible("renesas,r8a7778") &&
63		    !of_machine_is_compatible("renesas,r8a7779") &&
64		    !of_machine_is_compatible("renesas,r8a7790") &&
65		    !of_machine_is_compatible("renesas,r8a7791") &&
66		    !of_machine_is_compatible("renesas,sh7372") &&
67		    !of_machine_is_compatible("renesas,sh73a0"))
68			return 0;
69	}
70
71	default_pm_on = true;
72	pm_clk_add_notifier(&platform_bus_type, &platform_bus_notifier);
73	return 0;
74}
75core_initcall(sh_pm_runtime_init);
76
77static int __init sh_pm_runtime_late_init(void)
78{
79	if (default_pm_on)
80		pm_genpd_poweroff_unused();
81	return 0;
82}
83late_initcall(sh_pm_runtime_late_init);