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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-09-22 15:56:48 -0400
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-09-22 15:56:48 -0400
commit1f0cff6e4d579ab0fe671c02fcd842694e46b90f (patch)
treeb88bd0df8a97600d09aeecb598ac1f336997a608 /drivers/acpi
parent6110e02b97377a2903853faf3ecaff0e742fbe93 (diff)
parente5c86b5d4a517d10db89456426590ecba1597f1f (diff)
Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: ACPI: suspend: consolidate handling of Sx states addendum ACPI: suspend: consolidate handling of Sx states. ACPI: video: remove dmesg spam ACPI: video: _DOS=0 by default to prevent hotkey hang
Diffstat (limited to 'drivers/acpi')
-rw-r--r--drivers/acpi/sleep/Makefile2
-rw-r--r--drivers/acpi/sleep/main.c57
-rw-r--r--drivers/acpi/sleep/poweroff.c75
-rw-r--r--drivers/acpi/video.c3
4 files changed, 53 insertions, 84 deletions
diff --git a/drivers/acpi/sleep/Makefile b/drivers/acpi/sleep/Makefile
index 195a4f69c0f7..ba9bd403d443 100644
--- a/drivers/acpi/sleep/Makefile
+++ b/drivers/acpi/sleep/Makefile
@@ -1,4 +1,4 @@
1obj-y := poweroff.o wakeup.o 1obj-y := wakeup.o
2obj-$(CONFIG_ACPI_SLEEP) += main.o 2obj-$(CONFIG_ACPI_SLEEP) += main.o
3obj-$(CONFIG_ACPI_SLEEP) += proc.o 3obj-$(CONFIG_ACPI_SLEEP) += proc.o
4 4
diff --git a/drivers/acpi/sleep/main.c b/drivers/acpi/sleep/main.c
index c52ade816fb4..85633c585aab 100644
--- a/drivers/acpi/sleep/main.c
+++ b/drivers/acpi/sleep/main.c
@@ -15,6 +15,9 @@
15#include <linux/dmi.h> 15#include <linux/dmi.h>
16#include <linux/device.h> 16#include <linux/device.h>
17#include <linux/suspend.h> 17#include <linux/suspend.h>
18
19#include <asm/io.h>
20
18#include <acpi/acpi_bus.h> 21#include <acpi/acpi_bus.h>
19#include <acpi/acpi_drivers.h> 22#include <acpi/acpi_drivers.h>
20#include "sleep.h" 23#include "sleep.h"
@@ -57,6 +60,27 @@ static int acpi_pm_set_target(suspend_state_t pm_state)
57 return error; 60 return error;
58} 61}
59 62
63int acpi_sleep_prepare(u32 acpi_state)
64{
65#ifdef CONFIG_ACPI_SLEEP
66 /* do we have a wakeup address for S2 and S3? */
67 if (acpi_state == ACPI_STATE_S3) {
68 if (!acpi_wakeup_address) {
69 return -EFAULT;
70 }
71 acpi_set_firmware_waking_vector((acpi_physical_address)
72 virt_to_phys((void *)
73 acpi_wakeup_address));
74
75 }
76 ACPI_FLUSH_CPU_CACHE();
77 acpi_enable_wakeup_device_prep(acpi_state);
78#endif
79 acpi_gpe_sleep_prepare(acpi_state);
80 acpi_enter_sleep_state_prep(acpi_state);
81 return 0;
82}
83
60/** 84/**
61 * acpi_pm_prepare - Do preliminary suspend work. 85 * acpi_pm_prepare - Do preliminary suspend work.
62 * @pm_state: ignored 86 * @pm_state: ignored
@@ -350,6 +374,20 @@ int acpi_pm_device_sleep_state(struct device *dev, int wake, int *d_min_p)
350 return d_max; 374 return d_max;
351} 375}
352 376
377static void acpi_power_off_prepare(void)
378{
379 /* Prepare to power off the system */
380 acpi_sleep_prepare(ACPI_STATE_S5);
381}
382
383static void acpi_power_off(void)
384{
385 /* acpi_sleep_prepare(ACPI_STATE_S5) should have already been called */
386 printk("%s called\n", __FUNCTION__);
387 local_irq_disable();
388 acpi_enter_sleep_state(ACPI_STATE_S5);
389}
390
353int __init acpi_sleep_init(void) 391int __init acpi_sleep_init(void)
354{ 392{
355 acpi_status status; 393 acpi_status status;
@@ -363,16 +401,17 @@ int __init acpi_sleep_init(void)
363 if (acpi_disabled) 401 if (acpi_disabled)
364 return 0; 402 return 0;
365 403
404 sleep_states[ACPI_STATE_S0] = 1;
405 printk(KERN_INFO PREFIX "(supports S0");
406
366#ifdef CONFIG_SUSPEND 407#ifdef CONFIG_SUSPEND
367 printk(KERN_INFO PREFIX "(supports"); 408 for (i = ACPI_STATE_S1; i < ACPI_STATE_S4; i++) {
368 for (i = ACPI_STATE_S0; i < ACPI_STATE_S4; i++) {
369 status = acpi_get_sleep_type_data(i, &type_a, &type_b); 409 status = acpi_get_sleep_type_data(i, &type_a, &type_b);
370 if (ACPI_SUCCESS(status)) { 410 if (ACPI_SUCCESS(status)) {
371 sleep_states[i] = 1; 411 sleep_states[i] = 1;
372 printk(" S%d", i); 412 printk(" S%d", i);
373 } 413 }
374 } 414 }
375 printk(")\n");
376 415
377 pm_set_ops(&acpi_pm_ops); 416 pm_set_ops(&acpi_pm_ops);
378#endif 417#endif
@@ -382,10 +421,16 @@ int __init acpi_sleep_init(void)
382 if (ACPI_SUCCESS(status)) { 421 if (ACPI_SUCCESS(status)) {
383 hibernation_set_ops(&acpi_hibernation_ops); 422 hibernation_set_ops(&acpi_hibernation_ops);
384 sleep_states[ACPI_STATE_S4] = 1; 423 sleep_states[ACPI_STATE_S4] = 1;
424 printk(" S4");
385 } 425 }
386#else
387 sleep_states[ACPI_STATE_S4] = 0;
388#endif 426#endif
389 427 status = acpi_get_sleep_type_data(ACPI_STATE_S5, &type_a, &type_b);
428 if (ACPI_SUCCESS(status)) {
429 sleep_states[ACPI_STATE_S5] = 1;
430 printk(" S5");
431 pm_power_off_prepare = acpi_power_off_prepare;
432 pm_power_off = acpi_power_off;
433 }
434 printk(")\n");
390 return 0; 435 return 0;
391} 436}
diff --git a/drivers/acpi/sleep/poweroff.c b/drivers/acpi/sleep/poweroff.c
deleted file mode 100644
index 39e40d56b034..000000000000
--- a/drivers/acpi/sleep/poweroff.c
+++ /dev/null
@@ -1,75 +0,0 @@
1/*
2 * poweroff.c - ACPI handler for powering off the system.
3 *
4 * AKA S5, but it is independent of whether or not the kernel supports
5 * any other sleep support in the system.
6 *
7 * Copyright (c) 2005 Alexey Starikovskiy <alexey.y.starikovskiy@intel.com>
8 *
9 * This file is released under the GPLv2.
10 */
11
12#include <linux/pm.h>
13#include <linux/init.h>
14#include <acpi/acpi_bus.h>
15#include <linux/sysdev.h>
16#include <asm/io.h>
17#include "sleep.h"
18
19int acpi_sleep_prepare(u32 acpi_state)
20{
21#ifdef CONFIG_ACPI_SLEEP
22 /* do we have a wakeup address for S2 and S3? */
23 if (acpi_state == ACPI_STATE_S3) {
24 if (!acpi_wakeup_address) {
25 return -EFAULT;
26 }
27 acpi_set_firmware_waking_vector((acpi_physical_address)
28 virt_to_phys((void *)
29 acpi_wakeup_address));
30
31 }
32 ACPI_FLUSH_CPU_CACHE();
33 acpi_enable_wakeup_device_prep(acpi_state);
34#endif
35 acpi_gpe_sleep_prepare(acpi_state);
36 acpi_enter_sleep_state_prep(acpi_state);
37 return 0;
38}
39
40#ifdef CONFIG_PM
41
42static void acpi_power_off_prepare(void)
43{
44 /* Prepare to power off the system */
45 acpi_sleep_prepare(ACPI_STATE_S5);
46}
47
48static void acpi_power_off(void)
49{
50 /* acpi_sleep_prepare(ACPI_STATE_S5) should have already been called */
51 printk("%s called\n", __FUNCTION__);
52 local_irq_disable();
53 /* Some SMP machines only can poweroff in boot CPU */
54 acpi_enter_sleep_state(ACPI_STATE_S5);
55}
56
57static int acpi_poweroff_init(void)
58{
59 if (!acpi_disabled) {
60 u8 type_a, type_b;
61 acpi_status status;
62
63 status =
64 acpi_get_sleep_type_data(ACPI_STATE_S5, &type_a, &type_b);
65 if (ACPI_SUCCESS(status)) {
66 pm_power_off_prepare = acpi_power_off_prepare;
67 pm_power_off = acpi_power_off;
68 }
69 }
70 return 0;
71}
72
73late_initcall(acpi_poweroff_init);
74
75#endif /* CONFIG_PM */
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index 3c9bb85a6a93..d05891f16282 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -417,7 +417,6 @@ acpi_video_device_lcd_set_level(struct acpi_video_device *device, int level)
417 arg0.integer.value = level; 417 arg0.integer.value = level;
418 status = acpi_evaluate_object(device->dev->handle, "_BCM", &args, NULL); 418 status = acpi_evaluate_object(device->dev->handle, "_BCM", &args, NULL);
419 419
420 printk(KERN_DEBUG "set_level status: %x\n", status);
421 return status; 420 return status;
422} 421}
423 422
@@ -1754,7 +1753,7 @@ static int acpi_video_bus_put_devices(struct acpi_video_bus *video)
1754 1753
1755static int acpi_video_bus_start_devices(struct acpi_video_bus *video) 1754static int acpi_video_bus_start_devices(struct acpi_video_bus *video)
1756{ 1755{
1757 return acpi_video_bus_DOS(video, 1, 0); 1756 return acpi_video_bus_DOS(video, 0, 0);
1758} 1757}
1759 1758
1760static int acpi_video_bus_stop_devices(struct acpi_video_bus *video) 1759static int acpi_video_bus_stop_devices(struct acpi_video_bus *video)