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SubjectRe: [REGRESSION]fan turns at highspeed after suspend2ram
From
Date
On Di, 2008-02-12 at 00:05 +0100, Rafael J. Wysocki wrote:
> Well, this is strange, because one function introduced by this commit
is
> referred to by the subsequent commits. Can you send me the patch
reverting
> this commit that you apply on top of 2.6.25-rc1, please?
>
> Thanks,
> Rafael

Here is the diff after reverting the patch.

Mirco


diff --git a/drivers/acpi/hardware/hwsleep.c b/drivers/acpi/hardware/hwsleep.c
index 058d0be..eb05733 100644
--- a/drivers/acpi/hardware/hwsleep.c
+++ b/drivers/acpi/hardware/hwsleep.c
@@ -192,13 +192,18 @@ acpi_status acpi_enter_sleep_state_prep(u8 sleep_state)
arg.type = ACPI_TYPE_INTEGER;
arg.integer.value = sleep_state;

- /* Run the _PTS method */
+ /* Run the _PTS and _GTS methods */

status = acpi_evaluate_object(NULL, METHOD_NAME__PTS, &arg_list, NULL);
if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
return_ACPI_STATUS(status);
}

+ status = acpi_evaluate_object(NULL, METHOD_NAME__GTS, &arg_list, NULL);
+ if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
+ return_ACPI_STATUS(status);
+ }
+
/* Setup the argument to _SST */

switch (sleep_state) {
@@ -253,8 +258,6 @@ acpi_status asmlinkage acpi_enter_sleep_state(u8 sleep_state)
struct acpi_bit_register_info *sleep_type_reg_info;
struct acpi_bit_register_info *sleep_enable_reg_info;
u32 in_value;
- struct acpi_object_list arg_list;
- union acpi_object arg;
acpi_status status;

ACPI_FUNCTION_TRACE(acpi_enter_sleep_state);
@@ -300,18 +303,6 @@ acpi_status asmlinkage acpi_enter_sleep_state(u8 sleep_state)
return_ACPI_STATUS(status);
}

- /* Execute the _GTS method */
-
- arg_list.count = 1;
- arg_list.pointer = &arg;
- arg.type = ACPI_TYPE_INTEGER;
- arg.integer.value = sleep_state;
-
- status = acpi_evaluate_object(NULL, METHOD_NAME__GTS, &arg_list, NULL);
- if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
- return_ACPI_STATUS(status);
- }
-
/* Get current value of PM1A control */

status = acpi_hw_register_read(ACPI_REGISTER_PM1_CONTROL, &PM1Acontrol);
@@ -478,18 +469,17 @@ ACPI_EXPORT_SYMBOL(acpi_enter_sleep_state_s4bios)

/*******************************************************************************
*
- * FUNCTION: acpi_leave_sleep_state_prep
+ * FUNCTION: acpi_leave_sleep_state
*
- * PARAMETERS: sleep_state - Which sleep state we are exiting
+ * PARAMETERS: sleep_state - Which sleep state we just exited
*
* RETURN: Status
*
- * DESCRIPTION: Perform the first state of OS-independent ACPI cleanup after a
- * sleep.
- * Called with interrupts DISABLED.
+ * DESCRIPTION: Perform OS-independent ACPI cleanup after a sleep
+ * Called with interrupts ENABLED.
*
******************************************************************************/
-acpi_status acpi_leave_sleep_state_prep(u8 sleep_state)
+acpi_status acpi_leave_sleep_state(u8 sleep_state)
{
struct acpi_object_list arg_list;
union acpi_object arg;
@@ -499,7 +489,7 @@ acpi_status acpi_leave_sleep_state_prep(u8 sleep_state)
u32 PM1Acontrol;
u32 PM1Bcontrol;

- ACPI_FUNCTION_TRACE(acpi_leave_sleep_state_prep);
+ ACPI_FUNCTION_TRACE(acpi_leave_sleep_state);

/*
* Set SLP_TYPE and SLP_EN to state S0.
@@ -546,41 +536,6 @@ acpi_status acpi_leave_sleep_state_prep(u8 sleep_state)
}
}

- /* Execute the _BFS method */
-
- arg_list.count = 1;
- arg_list.pointer = &arg;
- arg.type = ACPI_TYPE_INTEGER;
- arg.integer.value = sleep_state;
-
- status = acpi_evaluate_object(NULL, METHOD_NAME__BFS, &arg_list, NULL);
- if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
- ACPI_EXCEPTION((AE_INFO, status, "During Method _BFS"));
- }
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_leave_sleep_state
- *
- * PARAMETERS: sleep_state - Which sleep state we just exited
- *
- * RETURN: Status
- *
- * DESCRIPTION: Perform OS-independent ACPI cleanup after a sleep
- * Called with interrupts ENABLED.
- *
- ******************************************************************************/
-acpi_status acpi_leave_sleep_state(u8 sleep_state)
-{
- struct acpi_object_list arg_list;
- union acpi_object arg;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(acpi_leave_sleep_state);
-
/* Ensure enter_sleep_state_prep -> enter_sleep_state ordering */

acpi_gbl_sleep_type_a = ACPI_SLEEP_TYPE_INVALID;
@@ -599,6 +554,12 @@ acpi_status acpi_leave_sleep_state(u8 sleep_state)
ACPI_EXCEPTION((AE_INFO, status, "During Method _SST"));
}

+ arg.integer.value = sleep_state;
+ status = acpi_evaluate_object(NULL, METHOD_NAME__BFS, &arg_list, NULL);
+ if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
+ ACPI_EXCEPTION((AE_INFO, status, "During Method _BFS"));
+ }
+
/*
* GPEs must be enabled before _WAK is called as GPEs
* might get fired there
diff --git a/drivers/acpi/sleep/main.c b/drivers/acpi/sleep/main.c
index 293a1cb..3381ea1 100644
--- a/drivers/acpi/sleep/main.c
+++ b/drivers/acpi/sleep/main.c
@@ -167,10 +167,7 @@ static int acpi_pm_enter(suspend_state_t pm_state)
break;
}

- /* Reprogram control registers and execute _BFS */
- acpi_leave_sleep_state_prep(acpi_state);
-
- /* ACPI 3.0 specs (P62) says that it's the responsibility
+ /* ACPI 3.0 specs (P62) says that it's the responsabilty
* of the OSPM to clear the status bit [ implying that the
* POWER_BUTTON event should not reach userspace ]
*/
@@ -326,8 +323,6 @@ static int acpi_hibernation_enter(void)
acpi_enable_wakeup_device(ACPI_STATE_S4);
/* This shouldn't return. If it returns, we have a problem */
status = acpi_enter_sleep_state(ACPI_STATE_S4);
- /* Reprogram control registers and execute _BFS */
- acpi_leave_sleep_state_prep(ACPI_STATE_S4);
local_irq_restore(flags);

return ACPI_SUCCESS(status) ? 0 : -EFAULT;
@@ -340,8 +335,6 @@ static void acpi_hibernation_leave(void)
* enable it here.
*/
acpi_enable();
- /* Reprogram control registers and execute _BFS */
- acpi_leave_sleep_state_prep(ACPI_STATE_S4);
}

static void acpi_hibernation_finish(void)
diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
index d970f7f..18a6377 100644
--- a/include/acpi/acpixf.h
+++ b/include/acpi/acpixf.h
@@ -335,8 +335,6 @@ acpi_status asmlinkage acpi_enter_sleep_state(u8 sleep_state);

acpi_status asmlinkage acpi_enter_sleep_state_s4bios(void);

-acpi_status acpi_leave_sleep_state_prep(u8 sleep_state);
-
acpi_status acpi_leave_sleep_state(u8 sleep_state);

#endif /* __ACXFACE_H__ */
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