diff options
author | Takashi Iwai <tiwai@suse.de> | 2010-01-19 09:53:43 -0500 |
---|---|---|
committer | Takashi Iwai <tiwai@suse.de> | 2010-01-19 09:53:43 -0500 |
commit | 9e4c84967ef027fe50a03cf48dd6da9519c8e60c (patch) | |
tree | 21d6b8168670f22521f3bb703e3b9d1932566c1c /drivers/acpi/sleep.c | |
parent | d2f2fcd2541bae004db7f4798ffd9d2cb75ae817 (diff) | |
parent | 3fb4a508b8e7957aa899f32cd6d9d462e102c7ca (diff) |
Merge branch 'fix/hda' into topic/hda
Conflicts:
sound/pci/hda/patch_realtek.c
Diffstat (limited to 'drivers/acpi/sleep.c')
-rw-r--r-- | drivers/acpi/sleep.c | 29 |
1 files changed, 17 insertions, 12 deletions
diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c index 5f2c379ab7bf..79d33d908b5a 100644 --- a/drivers/acpi/sleep.c +++ b/drivers/acpi/sleep.c | |||
@@ -81,6 +81,23 @@ static int acpi_sleep_prepare(u32 acpi_state) | |||
81 | #ifdef CONFIG_ACPI_SLEEP | 81 | #ifdef CONFIG_ACPI_SLEEP |
82 | static u32 acpi_target_sleep_state = ACPI_STATE_S0; | 82 | static u32 acpi_target_sleep_state = ACPI_STATE_S0; |
83 | /* | 83 | /* |
84 | * According to the ACPI specification the BIOS should make sure that ACPI is | ||
85 | * enabled and SCI_EN bit is set on wake-up from S1 - S3 sleep states. Still, | ||
86 | * some BIOSes don't do that and therefore we use acpi_enable() to enable ACPI | ||
87 | * on such systems during resume. Unfortunately that doesn't help in | ||
88 | * particularly pathological cases in which SCI_EN has to be set directly on | ||
89 | * resume, although the specification states very clearly that this flag is | ||
90 | * owned by the hardware. The set_sci_en_on_resume variable will be set in such | ||
91 | * cases. | ||
92 | */ | ||
93 | static bool set_sci_en_on_resume; | ||
94 | |||
95 | void __init acpi_set_sci_en_on_resume(void) | ||
96 | { | ||
97 | set_sci_en_on_resume = true; | ||
98 | } | ||
99 | |||
100 | /* | ||
84 | * ACPI 1.0 wants us to execute _PTS before suspending devices, so we allow the | 101 | * ACPI 1.0 wants us to execute _PTS before suspending devices, so we allow the |
85 | * user to request that behavior by using the 'acpi_old_suspend_ordering' | 102 | * user to request that behavior by using the 'acpi_old_suspend_ordering' |
86 | * kernel command line option that causes the following variable to be set. | 103 | * kernel command line option that causes the following variable to be set. |
@@ -170,18 +187,6 @@ static void acpi_pm_end(void) | |||
170 | #endif /* CONFIG_ACPI_SLEEP */ | 187 | #endif /* CONFIG_ACPI_SLEEP */ |
171 | 188 | ||
172 | #ifdef CONFIG_SUSPEND | 189 | #ifdef CONFIG_SUSPEND |
173 | /* | ||
174 | * According to the ACPI specification the BIOS should make sure that ACPI is | ||
175 | * enabled and SCI_EN bit is set on wake-up from S1 - S3 sleep states. Still, | ||
176 | * some BIOSes don't do that and therefore we use acpi_enable() to enable ACPI | ||
177 | * on such systems during resume. Unfortunately that doesn't help in | ||
178 | * particularly pathological cases in which SCI_EN has to be set directly on | ||
179 | * resume, although the specification states very clearly that this flag is | ||
180 | * owned by the hardware. The set_sci_en_on_resume variable will be set in such | ||
181 | * cases. | ||
182 | */ | ||
183 | static bool set_sci_en_on_resume; | ||
184 | |||
185 | extern void do_suspend_lowlevel(void); | 190 | extern void do_suspend_lowlevel(void); |
186 | 191 | ||
187 | static u32 acpi_suspend_states[] = { | 192 | static u32 acpi_suspend_states[] = { |