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-rw-r--r--kernel/power/main.c21
1 files changed, 7 insertions, 14 deletions
diff --git a/kernel/power/main.c b/kernel/power/main.c
index 5a779270cdbc..f6dda685e7e2 100644
--- a/kernel/power/main.c
+++ b/kernel/power/main.c
@@ -184,17 +184,21 @@ static void suspend_finish(suspend_state_t state)
184static const char * const pm_states[PM_SUSPEND_MAX] = { 184static const char * const pm_states[PM_SUSPEND_MAX] = {
185 [PM_SUSPEND_STANDBY] = "standby", 185 [PM_SUSPEND_STANDBY] = "standby",
186 [PM_SUSPEND_MEM] = "mem", 186 [PM_SUSPEND_MEM] = "mem",
187#ifdef CONFIG_SOFTWARE_SUSPEND
188 [PM_SUSPEND_DISK] = "disk", 187 [PM_SUSPEND_DISK] = "disk",
189#endif
190}; 188};
191 189
192static inline int valid_state(suspend_state_t state) 190static inline int valid_state(suspend_state_t state)
193{ 191{
194 /* Suspend-to-disk does not really need low-level support. 192 /* Suspend-to-disk does not really need low-level support.
195 * It can work with reboot if needed. */ 193 * It can work with shutdown/reboot if needed. If it isn't
194 * configured, then it cannot be supported.
195 */
196 if (state == PM_SUSPEND_DISK) 196 if (state == PM_SUSPEND_DISK)
197#ifdef CONFIG_SOFTWARE_SUSPEND
197 return 1; 198 return 1;
199#else
200 return 0;
201#endif
198 202
199 /* all other states need lowlevel support and need to be 203 /* all other states need lowlevel support and need to be
200 * valid to the lowlevel implementation, no valid callback 204 * valid to the lowlevel implementation, no valid callback
@@ -244,17 +248,6 @@ static int enter_state(suspend_state_t state)
244 return error; 248 return error;
245} 249}
246 250
247#ifdef CONFIG_SOFTWARE_SUSPEND
248/*
249 * This is main interface to the outside world. It needs to be
250 * called from process context.
251 */
252int software_suspend(void)
253{
254 return enter_state(PM_SUSPEND_DISK);
255}
256#endif
257
258 251
259/** 252/**
260 * pm_suspend - Externally visible function for suspending system. 253 * pm_suspend - Externally visible function for suspending system.