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| author | Shaohua Li <shaohua.li@intel.com> | 2005-10-30 15:00:01 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-10-30 17:37:15 -0800 |
| commit | eb9289eb20df6b54214c45ac7c6bf5179a149026 (patch) | |
| tree | dac51cecdd94e0c7273c990259ddd800057311b9 /drivers | |
| parent | 0245b3e787dc3267a915e1f56419e7e9c197e148 (diff) | |
| download | kernel_samsung_smdk4412-eb9289eb20df6b54214c45ac7c6bf5179a149026.zip kernel_samsung_smdk4412-eb9289eb20df6b54214c45ac7c6bf5179a149026.tar.gz kernel_samsung_smdk4412-eb9289eb20df6b54214c45ac7c6bf5179a149026.tar.bz2 | |
[PATCH] introduce .valid callback for pm_ops
Add pm_ops.valid callback, so only the available pm states show in
/sys/power/state. And this also makes an earlier states error report at
enter_state before we do actual suspend/resume.
Signed-off-by: Shaohua Li<shaohua.li@intel.com>
Acked-by: Pavel Machek<pavel@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/acpi/sleep/main.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/acpi/sleep/main.c b/drivers/acpi/sleep/main.c index aee50b4..930427f 100644 --- a/drivers/acpi/sleep/main.c +++ b/drivers/acpi/sleep/main.c @@ -158,7 +158,15 @@ int acpi_suspend(u32 acpi_state) return -EINVAL; } +static int acpi_pm_state_valid(suspend_state_t pm_state) +{ + u32 acpi_state = acpi_suspend_states[pm_state]; + + return sleep_states[acpi_state]; +} + static struct pm_ops acpi_pm_ops = { + .valid = acpi_pm_state_valid, .prepare = acpi_pm_prepare, .enter = acpi_pm_enter, .finish = acpi_pm_finish, |