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path: root/drivers/acpi/sleep.c
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Diffstat (limited to 'drivers/acpi/sleep.c')
-rw-r--r--drivers/acpi/sleep.c34
1 files changed, 19 insertions, 15 deletions
diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index 3fb4bdea7e06..5b7c52e4a00f 100644
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -114,6 +114,8 @@ static int __acpi_pm_prepare(void)
114{ 114{
115 int error = acpi_sleep_prepare(acpi_target_sleep_state); 115 int error = acpi_sleep_prepare(acpi_target_sleep_state);
116 116
117 suspend_nvs_save();
118
117 if (error) 119 if (error)
118 acpi_target_sleep_state = ACPI_STATE_S0; 120 acpi_target_sleep_state = ACPI_STATE_S0;
119 return error; 121 return error;
@@ -143,6 +145,9 @@ static void acpi_pm_finish(void)
143{ 145{
144 u32 acpi_state = acpi_target_sleep_state; 146 u32 acpi_state = acpi_target_sleep_state;
145 147
148 suspend_nvs_free();
149 acpi_ec_unblock_transactions();
150
146 if (acpi_state == ACPI_STATE_S0) 151 if (acpi_state == ACPI_STATE_S0)
147 return; 152 return;
148 153
@@ -192,6 +197,11 @@ static int acpi_suspend_begin(suspend_state_t pm_state)
192 u32 acpi_state = acpi_suspend_states[pm_state]; 197 u32 acpi_state = acpi_suspend_states[pm_state];
193 int error = 0; 198 int error = 0;
194 199
200 error = suspend_nvs_alloc();
201
202 if (error)
203 return error;
204
195 if (sleep_states[acpi_state]) { 205 if (sleep_states[acpi_state]) {
196 acpi_target_sleep_state = acpi_state; 206 acpi_target_sleep_state = acpi_state;
197 acpi_sleep_tts_switch(acpi_target_sleep_state); 207 acpi_sleep_tts_switch(acpi_target_sleep_state);
@@ -269,12 +279,13 @@ static int acpi_suspend_enter(suspend_state_t pm_state)
269 if (acpi_state == ACPI_STATE_S3) 279 if (acpi_state == ACPI_STATE_S3)
270 acpi_restore_state_mem(); 280 acpi_restore_state_mem();
271 281
282 suspend_nvs_restore();
283
272 return ACPI_SUCCESS(status) ? 0 : -EFAULT; 284 return ACPI_SUCCESS(status) ? 0 : -EFAULT;
273} 285}
274 286
275static void acpi_suspend_finish(void) 287static void acpi_suspend_finish(void)
276{ 288{
277 acpi_ec_unblock_transactions();
278 acpi_pm_finish(); 289 acpi_pm_finish();
279} 290}
280 291
@@ -404,7 +415,7 @@ static int acpi_hibernation_begin(void)
404{ 415{
405 int error; 416 int error;
406 417
407 error = s4_no_nvs ? 0 : hibernate_nvs_alloc(); 418 error = s4_no_nvs ? 0 : suspend_nvs_alloc();
408 if (!error) { 419 if (!error) {
409 acpi_target_sleep_state = ACPI_STATE_S4; 420 acpi_target_sleep_state = ACPI_STATE_S4;
410 acpi_sleep_tts_switch(acpi_target_sleep_state); 421 acpi_sleep_tts_switch(acpi_target_sleep_state);
@@ -418,7 +429,7 @@ static int acpi_hibernation_pre_snapshot(void)
418 int error = acpi_pm_prepare(); 429 int error = acpi_pm_prepare();
419 430
420 if (!error) 431 if (!error)
421 hibernate_nvs_save(); 432 suspend_nvs_save();
422 433
423 return error; 434 return error;
424} 435}
@@ -441,13 +452,6 @@ static int acpi_hibernation_enter(void)
441 return ACPI_SUCCESS(status) ? 0 : -EFAULT; 452 return ACPI_SUCCESS(status) ? 0 : -EFAULT;
442} 453}
443 454
444static void acpi_hibernation_finish(void)
445{
446 hibernate_nvs_free();
447 acpi_ec_unblock_transactions();
448 acpi_pm_finish();
449}
450
451static void acpi_hibernation_leave(void) 455static void acpi_hibernation_leave(void)
452{ 456{
453 /* 457 /*
@@ -464,7 +468,7 @@ static void acpi_hibernation_leave(void)
464 panic("ACPI S4 hardware signature mismatch"); 468 panic("ACPI S4 hardware signature mismatch");
465 } 469 }
466 /* Restore the NVS memory area */ 470 /* Restore the NVS memory area */
467 hibernate_nvs_restore(); 471 suspend_nvs_restore();
468 /* Allow EC transactions to happen. */ 472 /* Allow EC transactions to happen. */
469 acpi_ec_unblock_transactions_early(); 473 acpi_ec_unblock_transactions_early();
470} 474}
@@ -479,7 +483,7 @@ static struct platform_hibernation_ops acpi_hibernation_ops = {
479 .begin = acpi_hibernation_begin, 483 .begin = acpi_hibernation_begin,
480 .end = acpi_pm_end, 484 .end = acpi_pm_end,
481 .pre_snapshot = acpi_hibernation_pre_snapshot, 485 .pre_snapshot = acpi_hibernation_pre_snapshot,
482 .finish = acpi_hibernation_finish, 486 .finish = acpi_pm_finish,
483 .prepare = acpi_pm_prepare, 487 .prepare = acpi_pm_prepare,
484 .enter = acpi_hibernation_enter, 488 .enter = acpi_hibernation_enter,
485 .leave = acpi_hibernation_leave, 489 .leave = acpi_hibernation_leave,
@@ -507,7 +511,7 @@ static int acpi_hibernation_begin_old(void)
507 511
508 if (!error) { 512 if (!error) {
509 if (!s4_no_nvs) 513 if (!s4_no_nvs)
510 error = hibernate_nvs_alloc(); 514 error = suspend_nvs_alloc();
511 if (!error) 515 if (!error)
512 acpi_target_sleep_state = ACPI_STATE_S4; 516 acpi_target_sleep_state = ACPI_STATE_S4;
513 } 517 }
@@ -517,7 +521,7 @@ static int acpi_hibernation_begin_old(void)
517static int acpi_hibernation_pre_snapshot_old(void) 521static int acpi_hibernation_pre_snapshot_old(void)
518{ 522{
519 acpi_pm_freeze(); 523 acpi_pm_freeze();
520 hibernate_nvs_save(); 524 suspend_nvs_save();
521 return 0; 525 return 0;
522} 526}
523 527
@@ -529,8 +533,8 @@ static struct platform_hibernation_ops acpi_hibernation_ops_old = {
529 .begin = acpi_hibernation_begin_old, 533 .begin = acpi_hibernation_begin_old,
530 .end = acpi_pm_end, 534 .end = acpi_pm_end,
531 .pre_snapshot = acpi_hibernation_pre_snapshot_old, 535 .pre_snapshot = acpi_hibernation_pre_snapshot_old,
532 .finish = acpi_hibernation_finish,
533 .prepare = acpi_pm_freeze, 536 .prepare = acpi_pm_freeze,
537 .finish = acpi_pm_finish,
534 .enter = acpi_hibernation_enter, 538 .enter = acpi_hibernation_enter,
535 .leave = acpi_hibernation_leave, 539 .leave = acpi_hibernation_leave,
536 .pre_restore = acpi_pm_freeze, 540 .pre_restore = acpi_pm_freeze,