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| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2016-11-21 16:25:49 +0300 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2016-11-21 16:25:49 +0300 |
| commit | 9713adc2a1a5488f4889c657a0c0ce0c16056d3c (patch) | |
| tree | 2fad141a9352c0bd5430651fcc52087063fd5541 | |
| parent | 2c85025c75dfe7ddc2bb33363a998dad59383f94 (diff) | |
| download | linux-9713adc2a1a5488f4889c657a0c0ce0c16056d3c.tar.xz | |
Revert "ACPI: Execute _PTS before system reboot"
Revert commit 2c85025c75df (ACPI: Execute _PTS before system reboot)
as it is reported to cause poweroff and reboot to hang on Dell
Latitude E7250.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=187061
Reported-by: Gianpaolo <gianpaoloc@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| -rw-r--r-- | drivers/acpi/sleep.c | 29 |
1 files changed, 6 insertions, 23 deletions
diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c index 2b38c1bb0446..7a2e4d45b266 100644 --- a/drivers/acpi/sleep.c +++ b/drivers/acpi/sleep.c @@ -47,32 +47,15 @@ static void acpi_sleep_tts_switch(u32 acpi_state) } } -static void acpi_sleep_pts_switch(u32 acpi_state) -{ - acpi_status status; - - status = acpi_execute_simple_method(NULL, "\\_PTS", acpi_state); - if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) { - /* - * OS can't evaluate the _PTS object correctly. Some warning - * message will be printed. But it won't break anything. - */ - printk(KERN_NOTICE "Failure in evaluating _PTS object\n"); - } -} - -static int sleep_notify_reboot(struct notifier_block *this, +static int tts_notify_reboot(struct notifier_block *this, unsigned long code, void *x) { acpi_sleep_tts_switch(ACPI_STATE_S5); - - acpi_sleep_pts_switch(ACPI_STATE_S5); - return NOTIFY_DONE; } -static struct notifier_block sleep_notifier = { - .notifier_call = sleep_notify_reboot, +static struct notifier_block tts_notifier = { + .notifier_call = tts_notify_reboot, .next = NULL, .priority = 0, }; @@ -916,9 +899,9 @@ int __init acpi_sleep_init(void) pr_info(PREFIX "(supports%s)\n", supported); /* - * Register the sleep_notifier to reboot notifier list so that the _TTS - * and _PTS object can also be evaluated when the system enters S5. + * Register the tts_notifier to reboot notifier list so that the _TTS + * object can also be evaluated when the system enters S5. */ - register_reboot_notifier(&sleep_notifier); + register_reboot_notifier(&tts_notifier); return 0; } |