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path: root/drivers/ide/ide-pm.c
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Diffstat (limited to 'drivers/ide/ide-pm.c')
-rw-r--r--drivers/ide/ide-pm.c30
1 files changed, 18 insertions, 12 deletions
diff --git a/drivers/ide/ide-pm.c b/drivers/ide/ide-pm.c
index c14ca144cffe..ad7be2669dcb 100644
--- a/drivers/ide/ide-pm.c
+++ b/drivers/ide/ide-pm.c
@@ -10,9 +10,11 @@ int generic_ide_suspend(struct device *dev, pm_message_t mesg)
10 struct request_pm_state rqpm; 10 struct request_pm_state rqpm;
11 int ret; 11 int ret;
12 12
13 /* call ACPI _GTM only once */ 13 if (ide_port_acpi(hwif)) {
14 if ((drive->dn & 1) == 0 || pair == NULL) 14 /* call ACPI _GTM only once */
15 ide_acpi_get_timing(hwif); 15 if ((drive->dn & 1) == 0 || pair == NULL)
16 ide_acpi_get_timing(hwif);
17 }
16 18
17 memset(&rqpm, 0, sizeof(rqpm)); 19 memset(&rqpm, 0, sizeof(rqpm));
18 rq = blk_get_request(drive->queue, READ, __GFP_WAIT); 20 rq = blk_get_request(drive->queue, READ, __GFP_WAIT);
@@ -26,9 +28,11 @@ int generic_ide_suspend(struct device *dev, pm_message_t mesg)
26 ret = blk_execute_rq(drive->queue, NULL, rq, 0); 28 ret = blk_execute_rq(drive->queue, NULL, rq, 0);
27 blk_put_request(rq); 29 blk_put_request(rq);
28 30
29 /* call ACPI _PS3 only after both devices are suspended */ 31 if (ret == 0 && ide_port_acpi(hwif)) {
30 if (ret == 0 && ((drive->dn & 1) || pair == NULL)) 32 /* call ACPI _PS3 only after both devices are suspended */
31 ide_acpi_set_state(hwif, 0); 33 if ((drive->dn & 1) || pair == NULL)
34 ide_acpi_set_state(hwif, 0);
35 }
32 36
33 return ret; 37 return ret;
34} 38}
@@ -42,13 +46,15 @@ int generic_ide_resume(struct device *dev)
42 struct request_pm_state rqpm; 46 struct request_pm_state rqpm;
43 int err; 47 int err;
44 48
45 /* call ACPI _PS0 / _STM only once */ 49 if (ide_port_acpi(hwif)) {
46 if ((drive->dn & 1) == 0 || pair == NULL) { 50 /* call ACPI _PS0 / _STM only once */
47 ide_acpi_set_state(hwif, 1); 51 if ((drive->dn & 1) == 0 || pair == NULL) {
48 ide_acpi_push_timing(hwif); 52 ide_acpi_set_state(hwif, 1);
49 } 53 ide_acpi_push_timing(hwif);
54 }
50 55
51 ide_acpi_exec_tfs(drive); 56 ide_acpi_exec_tfs(drive);
57 }
52 58
53 memset(&rqpm, 0, sizeof(rqpm)); 59 memset(&rqpm, 0, sizeof(rqpm));
54 rq = blk_get_request(drive->queue, READ, __GFP_WAIT); 60 rq = blk_get_request(drive->queue, READ, __GFP_WAIT);