A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-31 12:10:52 -04:00
Code Issues Projects Releases Packages Wiki Activity

Merge branch 'bugzilla-16396' into release

Browse source
This commit is contained in:
Len Brown 2010-07-24 23:26:22 -04:00
commit 0e1cf38889
5 changed files with 34 additions and 23 deletions
Download patch file Download diff file Expand all files Collapse all files

35
drivers/acpi/sleep.c
View file

@ -81,6 +81,20 @@ static int acpi_sleep_prepare(u32 acpi_state)
#ifdef CONFIG_ACPI_SLEEP
static u32 acpi_target_sleep_state = ACPI_STATE_S0;
/*
* The ACPI specification wants us to save NVS memory regions during hibernation
* and to restore them during the subsequent resume. Windows does that also for
* suspend to RAM. However, it is known that this mechanism does not work on
* all machines, so we allow the user to disable it with the help of the
* 'acpi_sleep=nonvs' kernel command line option.
*/
static bool nvs_nosave;
void __init acpi_nvs_nosave(void)
{
nvs_nosave = true;
}
/*
* ACPI 1.0 wants us to execute _PTS before suspending devices, so we allow the
* user to request that behavior by using the 'acpi_old_suspend_ordering'
@ -197,8 +211,7 @@ static int acpi_suspend_begin(suspend_state_t pm_state)
u32 acpi_state = acpi_suspend_states[pm_state];
int error = 0;
error = suspend_nvs_alloc();
error = nvs_nosave ? 0 : suspend_nvs_alloc();
if (error)
return error;
@ -388,20 +401,6 @@ static struct dmi_system_id __initdata acpisleep_dmi_table[] = {
#endif /* CONFIG_SUSPEND */
#ifdef CONFIG_HIBERNATION
/*
* The ACPI specification wants us to save NVS memory regions during hibernation
* and to restore them during the subsequent resume. However, it is not certain
* if this mechanism is going to work on all machines, so we allow the user to
* disable this mechanism using the 'acpi_sleep=s4_nonvs' kernel command line
* option.
*/
static bool s4_no_nvs;
void __init acpi_s4_no_nvs(void)
{
s4_no_nvs = true;
}
static unsigned long s4_hardware_signature;
static struct acpi_table_facs *facs;
static bool nosigcheck;
@ -415,7 +414,7 @@ static int acpi_hibernation_begin(void)
{
int error;
error = s4_no_nvs ? 0 : suspend_nvs_alloc();
error = nvs_nosave ? 0 : suspend_nvs_alloc();
if (!error) {
acpi_target_sleep_state = ACPI_STATE_S4;
acpi_sleep_tts_switch(acpi_target_sleep_state);
@ -510,7 +509,7 @@ static int acpi_hibernation_begin_old(void)
error = acpi_sleep_prepare(ACPI_STATE_S4);
if (!error) {
if (!s4_no_nvs)
if (!nvs_nosave)
error = suspend_nvs_alloc();
if (!error)
acpi_target_sleep_state = ACPI_STATE_S4;