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Commit 91dd6964 authored by Len Brown's avatar Len Brown
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Merge branch 'acpi_enable' into release

parents dc1544ea b6dacf63
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Showing with 24 additions and 189 deletions
arch/x86/kernel/acpi/sleep.c
View file @ 91dd6964
......@@ -162,8 +162,6 @@ static int __init acpi_sleep_setup(char *str)
#endif
if (strncmp(str, "old_ordering", 12) == 0)
acpi_old_suspend_ordering();
if (strncmp(str, "sci_force_enable", 16) == 0)
acpi_set_sci_en_on_resume();
str = strchr(str, ',');
if (str != NULL)
str += strspn(str, ", \t");
......
drivers/acpi/acpica/evxfevnt.c
View file @ 91dd6964
......@@ -69,7 +69,7 @@ acpi_ev_get_gpe_device(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
acpi_status acpi_enable(void)
{
acpi_status status = AE_OK;
acpi_status status;
ACPI_FUNCTION_TRACE(acpi_enable);
......@@ -84,7 +84,9 @@ acpi_status acpi_enable(void)
if (acpi_hw_get_mode() == ACPI_SYS_MODE_ACPI) {
ACPI_DEBUG_PRINT((ACPI_DB_INIT,
"System is already in ACPI mode\n"));
} else {
return_ACPI_STATUS(AE_OK);
}
/* Transition to ACPI mode */
status = acpi_hw_set_mode(ACPI_SYS_MODE_ACPI);
......@@ -94,11 +96,18 @@ acpi_status acpi_enable(void)
return_ACPI_STATUS(status);
}
/* Sanity check that transition succeeded */
if (acpi_hw_get_mode() != ACPI_SYS_MODE_ACPI) {
ACPI_ERROR((AE_INFO,
"Hardware did not enter ACPI mode"));
return_ACPI_STATUS(AE_NO_HARDWARE_RESPONSE);
}
ACPI_DEBUG_PRINT((ACPI_DB_INIT,
"Transition to ACPI mode successful\n"));
}
return_ACPI_STATUS(status);
return_ACPI_STATUS(AE_OK);
}
ACPI_EXPORT_SYMBOL(acpi_enable)
......
drivers/acpi/acpica/hwacpi.c
View file @ 91dd6964
......@@ -63,7 +63,6 @@ acpi_status acpi_hw_set_mode(u32 mode)
{
acpi_status status;
u32 retry;
ACPI_FUNCTION_TRACE(hw_set_mode);
......@@ -125,24 +124,7 @@ acpi_status acpi_hw_set_mode(u32 mode)
return_ACPI_STATUS(status);
}
/*
* Some hardware takes a LONG time to switch modes. Give them 3 sec to
* do so, but allow faster systems to proceed more quickly.
*/
retry = 3000;
while (retry) {
if (acpi_hw_get_mode() == mode) {
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"Mode %X successfully enabled\n",
mode));
return_ACPI_STATUS(AE_OK);
}
acpi_os_stall(1000);
retry--;
}
ACPI_ERROR((AE_INFO, "Hardware did not change modes"));
return_ACPI_STATUS(AE_NO_HARDWARE_RESPONSE);
}
/*******************************************************************************
......
drivers/acpi/sleep.c
View file @ 91dd6964
......@@ -80,22 +80,6 @@ static int acpi_sleep_prepare(u32 acpi_state)
#ifdef CONFIG_ACPI_SLEEP
static u32 acpi_target_sleep_state = ACPI_STATE_S0;
/*
* According to the ACPI specification the BIOS should make sure that ACPI is
* enabled and SCI_EN bit is set on wake-up from S1 - S3 sleep states. Still,
* some BIOSes don't do that and therefore we use acpi_enable() to enable ACPI
* on such systems during resume. Unfortunately that doesn't help in
* particularly pathological cases in which SCI_EN has to be set directly on
* resume, although the specification states very clearly that this flag is
* owned by the hardware. The set_sci_en_on_resume variable will be set in such
* cases.
*/
static bool set_sci_en_on_resume;
void __init acpi_set_sci_en_on_resume(void)
{
set_sci_en_on_resume = true;
}
/*
* ACPI 1.0 wants us to execute _PTS before suspending devices, so we allow the
......@@ -253,11 +237,8 @@ static int acpi_suspend_enter(suspend_state_t pm_state)
break;
}
/* If ACPI is not enabled by the BIOS, we need to enable it here. */
if (set_sci_en_on_resume)
/* This violates the spec but is required for bug compatibility. */
acpi_write_bit_register(ACPI_BITREG_SCI_ENABLE, 1);
else
acpi_enable();
/* Reprogram control registers and execute _BFS */
acpi_leave_sleep_state_prep(acpi_state);
......@@ -346,12 +327,6 @@ static int __init init_old_suspend_ordering(const struct dmi_system_id *d)
return 0;
}
static int __init init_set_sci_en_on_resume(const struct dmi_system_id *d)
{
set_sci_en_on_resume = true;
return 0;
}
static struct dmi_system_id __initdata acpisleep_dmi_table[] = {
{
.callback = init_old_suspend_ordering,
......@@ -370,22 +345,6 @@ static struct dmi_system_id __initdata acpisleep_dmi_table[] = {
},
},
{
.callback = init_set_sci_en_on_resume,
.ident = "Apple MacBook 1,1",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Apple Computer, Inc."),
DMI_MATCH(DMI_PRODUCT_NAME, "MacBook1,1"),
},
},
{
.callback = init_set_sci_en_on_resume,
.ident = "Apple MacMini 1,1",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Apple Computer, Inc."),
DMI_MATCH(DMI_PRODUCT_NAME, "Macmini1,1"),
},
},
{
.callback = init_old_suspend_ordering,
.ident = "Asus Pundit P1-AH2 (M2N8L motherboard)",
.matches = {
......@@ -394,94 +353,6 @@ static struct dmi_system_id __initdata acpisleep_dmi_table[] = {
},
},
{
.callback = init_set_sci_en_on_resume,
.ident = "Toshiba Satellite L300",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
DMI_MATCH(DMI_PRODUCT_NAME, "Satellite L300"),
},
},
{
.callback = init_set_sci_en_on_resume,
.ident = "Hewlett-Packard HP G7000 Notebook PC",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
DMI_MATCH(DMI_PRODUCT_NAME, "HP G7000 Notebook PC"),
},
},
{
.callback = init_set_sci_en_on_resume,
.ident = "Hewlett-Packard HP Pavilion dv3 Notebook PC",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv3 Notebook PC"),
},
},
{
.callback = init_set_sci_en_on_resume,
.ident = "Hewlett-Packard Pavilion dv4",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv4"),
},
},
{
.callback = init_set_sci_en_on_resume,
.ident = "Hewlett-Packard Pavilion dv7",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv7"),
},
},
{
.callback = init_set_sci_en_on_resume,
.ident = "Hewlett-Packard Compaq Presario C700 Notebook PC",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
DMI_MATCH(DMI_PRODUCT_NAME, "Compaq Presario C700 Notebook PC"),
},
},
{
.callback = init_set_sci_en_on_resume,
.ident = "Hewlett-Packard Compaq Presario CQ40 Notebook PC",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
DMI_MATCH(DMI_PRODUCT_NAME, "Compaq Presario CQ40 Notebook PC"),
},
},
{
.callback = init_set_sci_en_on_resume,
.ident = "Lenovo ThinkPad T410",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T410"),
},
},
{
.callback = init_set_sci_en_on_resume,
.ident = "Lenovo ThinkPad T510",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T510"),
},
},
{
.callback = init_set_sci_en_on_resume,
.ident = "Lenovo ThinkPad W510",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad W510"),
},
},
{
.callback = init_set_sci_en_on_resume,
.ident = "Lenovo ThinkPad X201[s]",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X201"),
},
},
{
.callback = init_old_suspend_ordering,
.ident = "Panasonic CF51-2L",
.matches = {
......@@ -490,30 +361,6 @@ static struct dmi_system_id __initdata acpisleep_dmi_table[] = {
DMI_MATCH(DMI_BOARD_NAME, "CF51-2L"),
},
},
{
.callback = init_set_sci_en_on_resume,
.ident = "Dell Studio 1558",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
DMI_MATCH(DMI_PRODUCT_NAME, "Studio 1558"),
},
},
{
.callback = init_set_sci_en_on_resume,
.ident = "Dell Studio 1557",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
DMI_MATCH(DMI_PRODUCT_NAME, "Studio 1557"),
},
},
{
.callback = init_set_sci_en_on_resume,
.ident = "Dell Studio 1555",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
DMI_MATCH(DMI_PRODUCT_NAME, "Studio 1555"),
},
},
{},
};
#endif /* CONFIG_SUSPEND */
......
include/linux/acpi.h
View file @ 91dd6964
......@@ -251,7 +251,6 @@ int acpi_check_mem_region(resource_size_t start, resource_size_t n,
void __init acpi_no_s4_hw_signature(void);
void __init acpi_old_suspend_ordering(void);
void __init acpi_s4_no_nvs(void);
void __init acpi_set_sci_en_on_resume(void);
#endif /* CONFIG_PM_SLEEP */
struct acpi_osc_context {
......
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