1 // SPDX-License-Identifier: GPL-2.0-or-later
8  * Based on arch/powerpc/platforms/44x/idle.c:
26 #include <asm/dcr-native.h>
50 	const char  *name;  member
72 	/* return old state, to restore later if needed */  in cpm_set()
80 	/* save off initial state */  in cpm_idle_wait()
84 	/* set wait state MSR */  in cpm_idle_wait()
87 	/* return to initial state */  in cpm_idle_wait()
96 	/* update CPM_ER state */  in cpm_idle_sleep()
99 	/* go to wait state so that CPM0_ER[CPU] can take effect */  in cpm_idle_sleep()
102 	/* restore CPM_ER state */  in cpm_idle_sleep()
132 			s += sprintf(s, "[%s] ", idle_mode[i].name);  in cpm_idle_show()
134 			s += sprintf(s, "%s ", idle_mode[i].name);  in cpm_idle_show()
137 	*(s-1) = '\n'; /* convert the last space to a newline */  in cpm_idle_show()
139 	return s - buf;  in cpm_idle_show()
151 	len = p ? p - buf : n;  in cpm_idle_store()
154 		if (strncmp(buf, idle_mode[i].name, len) == 0) {  in cpm_idle_store()
160 	return -EINVAL;  in cpm_idle_store()
164 	__ATTR(idle, 0644, cpm_idle_show, cpm_idle_store);
173 	ret = sysfs_create_file(&dev->kobj,  in cpm_idle_config_sysfs()
177 		       "cpm: failed to create idle sysfs entry\n");  in cpm_idle_config_sysfs()
188 static int cpm_suspend_valid(suspend_state_t state)  in cpm_suspend_valid()  argument
190 	switch (state) {  in cpm_suspend_valid()
208 	/* go to sleep state */  in cpm_suspend_standby()
215 static int cpm_suspend_enter(suspend_state_t state)  in cpm_suspend_enter()  argument
217 	switch (state) {  in cpm_suspend_enter()
235 				 const char *name)  in cpm_get_uint_property()  argument
238 	const unsigned int *prop = of_get_property(np, name, &len);  in cpm_get_uint_property()
259 		ret = -EINVAL;  in cpm_init()
269 		ret = -EINVAL;  in cpm_init()
278 		ret = -EINVAL;  in cpm_init()
288 	if (cpm_get_uint_property(np, "er-offset") == 0) {  in cpm_init()
300 	cpm.unused = cpm_get_uint_property(np, "unused-units");  in cpm_init()
301 	cpm.idle_doze = cpm_get_uint_property(np, "idle-doze");  in cpm_init()