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-rw-r--r--drivers/acpi/Kconfig2
-rw-r--r--drivers/acpi/ac.c19
-rw-r--r--drivers/acpi/acpi_lpss.c13
-rw-r--r--drivers/acpi/acpi_pnp.c2
-rw-r--r--drivers/acpi/acpica/acglobal.h2
-rw-r--r--drivers/acpi/acpica/hwesleep.c8
-rw-r--r--drivers/acpi/acpica/hwsleep.c11
-rw-r--r--drivers/acpi/acpica/hwxfsleep.c7
-rw-r--r--drivers/acpi/acpica/utosi.c1
-rw-r--r--drivers/acpi/arm64/gtdt.c2
-rw-r--r--drivers/acpi/dock.c8
-rw-r--r--drivers/acpi/glue.c66
-rw-r--r--drivers/acpi/internal.h1
-rw-r--r--drivers/acpi/power.c104
-rw-r--r--drivers/acpi/processor_idle.c3
-rw-r--r--drivers/acpi/resource.c56
-rw-r--r--drivers/acpi/scan.c6
-rw-r--r--drivers/acpi/sleep.c10
-rw-r--r--drivers/acpi/tables.c3
-rw-r--r--drivers/acpi/x86/s2idle.c3
20 files changed, 214 insertions, 113 deletions
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 1da360c51d66..cdbdf68bd98f 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -71,7 +71,7 @@ config ACPI_DEBUGGER
if ACPI_DEBUGGER
config ACPI_DEBUGGER_USER
- tristate "Userspace debugger accessiblity"
+ tristate "Userspace debugger accessibility"
depends on DEBUG_FS
help
Export /sys/kernel/debug/acpi/acpidbg for userspace utilities
diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c
index b0cb662233f1..81aff651a0d4 100644
--- a/drivers/acpi/ac.c
+++ b/drivers/acpi/ac.c
@@ -61,6 +61,7 @@ static SIMPLE_DEV_PM_OPS(acpi_ac_pm, NULL, acpi_ac_resume);
static int ac_sleep_before_get_state_ms;
static int ac_check_pmic = 1;
+static int ac_only;
static struct acpi_driver acpi_ac_driver = {
.name = "ac",
@@ -93,6 +94,11 @@ static int acpi_ac_get_state(struct acpi_ac *ac)
if (!ac)
return -EINVAL;
+ if (ac_only) {
+ ac->state = 1;
+ return 0;
+ }
+
status = acpi_evaluate_integer(ac->device->handle, "_PSR", NULL,
&ac->state);
if (ACPI_FAILURE(status)) {
@@ -200,6 +206,12 @@ static int __init ac_do_not_check_pmic_quirk(const struct dmi_system_id *d)
return 0;
}
+static int __init ac_only_quirk(const struct dmi_system_id *d)
+{
+ ac_only = 1;
+ return 0;
+}
+
/* Please keep this list alphabetically sorted */
static const struct dmi_system_id ac_dmi_table[] __initconst = {
{
@@ -210,6 +222,13 @@ static const struct dmi_system_id ac_dmi_table[] __initconst = {
},
},
{
+ /* Kodlix GK45 returning incorrect state */
+ .callback = ac_only_quirk,
+ .matches = {
+ DMI_MATCH(DMI_PRODUCT_NAME, "GK45"),
+ },
+ },
+ {
/* Lenovo Ideapad Miix 320, AXP288 PMIC, separate fuel-gauge */
.callback = ac_do_not_check_pmic_quirk,
.matches = {
diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c
index 30b1f511c2af..bcae0f03572b 100644
--- a/drivers/acpi/acpi_lpss.c
+++ b/drivers/acpi/acpi_lpss.c
@@ -712,14 +712,13 @@ static void __lpss_reg_write(u32 val, struct lpss_private_data *pdata,
static int lpss_reg_read(struct device *dev, unsigned int reg, u32 *val)
{
- struct acpi_device *adev;
+ struct acpi_device *adev = ACPI_COMPANION(dev);
struct lpss_private_data *pdata;
unsigned long flags;
int ret;
- ret = acpi_bus_get_device(ACPI_HANDLE(dev), &adev);
- if (WARN_ON(ret))
- return ret;
+ if (WARN_ON(!adev))
+ return -ENODEV;
spin_lock_irqsave(&dev->power.lock, flags);
if (pm_runtime_suspended(dev)) {
@@ -732,6 +731,7 @@ static int lpss_reg_read(struct device *dev, unsigned int reg, u32 *val)
goto out;
}
*val = __lpss_reg_read(pdata, reg);
+ ret = 0;
out:
spin_unlock_irqrestore(&dev->power.lock, flags);
@@ -750,7 +750,7 @@ static ssize_t lpss_ltr_show(struct device *dev, struct device_attribute *attr,
if (ret)
return ret;
- return snprintf(buf, PAGE_SIZE, "%08x\n", ltr_value);
+ return sysfs_emit(buf, "%08x\n", ltr_value);
}
static ssize_t lpss_ltr_mode_show(struct device *dev,
@@ -1266,7 +1266,8 @@ static int acpi_lpss_platform_notify(struct notifier_block *nb,
if (!id || !id->driver_data)
return 0;
- if (acpi_bus_get_device(ACPI_HANDLE(&pdev->dev), &adev))
+ adev = ACPI_COMPANION(&pdev->dev);
+ if (!adev)
return 0;
pdata = acpi_driver_data(adev);
diff --git a/drivers/acpi/acpi_pnp.c b/drivers/acpi/acpi_pnp.c
index 8f2dc176bb41..ffdcfcd4a10d 100644
--- a/drivers/acpi/acpi_pnp.c
+++ b/drivers/acpi/acpi_pnp.c
@@ -156,8 +156,6 @@ static const struct acpi_device_id acpi_pnp_device_ids[] = {
{"BRI0A49"}, /* Boca Complete Ofc Communicator 14.4 Data-FAX */
{"BRI1400"}, /* Boca Research 33,600 ACF Modem */
{"BRI3400"}, /* Boca 33.6 Kbps Internal FD34FSVD */
- {"BRI0A49"}, /* Boca 33.6 Kbps Internal FD34FSVD */
- {"BDP3336"}, /* Best Data Products Inc. Smart One 336F PnP Modem */
{"CPI4050"}, /* Computer Peripherals Inc. EuroViVa CommCenter-33.6 SP PnP */
{"CTL3001"}, /* Creative Labs Phone Blaster 28.8 DSVD PnP Voice */
{"CTL3011"}, /* Creative Labs Modem Blaster 28.8 DSVD PnP Voice */
diff --git a/drivers/acpi/acpica/acglobal.h b/drivers/acpi/acpica/acglobal.h
index d41b810e367c..4366d36ef119 100644
--- a/drivers/acpi/acpica/acglobal.h
+++ b/drivers/acpi/acpica/acglobal.h
@@ -226,6 +226,8 @@ extern struct acpi_bit_register_info
acpi_gbl_bit_register_info[ACPI_NUM_BITREG];
ACPI_GLOBAL(u8, acpi_gbl_sleep_type_a);
ACPI_GLOBAL(u8, acpi_gbl_sleep_type_b);
+ACPI_GLOBAL(u8, acpi_gbl_sleep_type_a_s0);
+ACPI_GLOBAL(u8, acpi_gbl_sleep_type_b_s0);
/*****************************************************************************
*
diff --git a/drivers/acpi/acpica/hwesleep.c b/drivers/acpi/acpica/hwesleep.c
index 803402aefaeb..808fdf54aeeb 100644
--- a/drivers/acpi/acpica/hwesleep.c
+++ b/drivers/acpi/acpica/hwesleep.c
@@ -147,17 +147,13 @@ acpi_status acpi_hw_extended_sleep(u8 sleep_state)
acpi_status acpi_hw_extended_wake_prep(u8 sleep_state)
{
- acpi_status status;
u8 sleep_type_value;
ACPI_FUNCTION_TRACE(hw_extended_wake_prep);
- status = acpi_get_sleep_type_data(ACPI_STATE_S0,
- &acpi_gbl_sleep_type_a,
- &acpi_gbl_sleep_type_b);
- if (ACPI_SUCCESS(status)) {
+ if (acpi_gbl_sleep_type_a_s0 != ACPI_SLEEP_TYPE_INVALID) {
sleep_type_value =
- ((acpi_gbl_sleep_type_a << ACPI_X_SLEEP_TYPE_POSITION) &
+ ((acpi_gbl_sleep_type_a_s0 << ACPI_X_SLEEP_TYPE_POSITION) &
ACPI_X_SLEEP_TYPE_MASK);
(void)acpi_write((u64)(sleep_type_value | ACPI_X_SLEEP_ENABLE),
diff --git a/drivers/acpi/acpica/hwsleep.c b/drivers/acpi/acpica/hwsleep.c
index 14baa13bf848..34a3825f25d3 100644
--- a/drivers/acpi/acpica/hwsleep.c
+++ b/drivers/acpi/acpica/hwsleep.c
@@ -179,7 +179,7 @@ acpi_status acpi_hw_legacy_sleep(u8 sleep_state)
acpi_status acpi_hw_legacy_wake_prep(u8 sleep_state)
{
- acpi_status status;
+ acpi_status status = AE_OK;
struct acpi_bit_register_info *sleep_type_reg_info;
struct acpi_bit_register_info *sleep_enable_reg_info;
u32 pm1a_control;
@@ -192,10 +192,7 @@ acpi_status acpi_hw_legacy_wake_prep(u8 sleep_state)
* This is unclear from the ACPI Spec, but it is required
* by some machines.
*/
- status = acpi_get_sleep_type_data(ACPI_STATE_S0,
- &acpi_gbl_sleep_type_a,
- &acpi_gbl_sleep_type_b);
- if (ACPI_SUCCESS(status)) {
+ if (acpi_gbl_sleep_type_a_s0 != ACPI_SLEEP_TYPE_INVALID) {
sleep_type_reg_info =
acpi_hw_get_bit_register_info(ACPI_BITREG_SLEEP_TYPE);
sleep_enable_reg_info =
@@ -216,9 +213,9 @@ acpi_status acpi_hw_legacy_wake_prep(u8 sleep_state)
/* Insert the SLP_TYP bits */
- pm1a_control |= (acpi_gbl_sleep_type_a <<
+ pm1a_control |= (acpi_gbl_sleep_type_a_s0 <<
sleep_type_reg_info->bit_position);
- pm1b_control |= (acpi_gbl_sleep_type_b <<
+ pm1b_control |= (acpi_gbl_sleep_type_b_s0 <<
sleep_type_reg_info->bit_position);
/* Write the control registers and ignore any errors */
diff --git a/drivers/acpi/acpica/hwxfsleep.c b/drivers/acpi/acpica/hwxfsleep.c
index 89b12afed564..e4cde23a2906 100644
--- a/drivers/acpi/acpica/hwxfsleep.c
+++ b/drivers/acpi/acpica/hwxfsleep.c
@@ -217,6 +217,13 @@ acpi_status acpi_enter_sleep_state_prep(u8 sleep_state)
return_ACPI_STATUS(status);
}
+ status = acpi_get_sleep_type_data(ACPI_STATE_S0,
+ &acpi_gbl_sleep_type_a_s0,
+ &acpi_gbl_sleep_type_b_s0);
+ if (ACPI_FAILURE(status)) {
+ acpi_gbl_sleep_type_a_s0 = ACPI_SLEEP_TYPE_INVALID;
+ }
+
/* Execute the _PTS method (Prepare To Sleep) */
arg_list.count = 1;
diff --git a/drivers/acpi/acpica/utosi.c b/drivers/acpi/acpica/utosi.c
index 7b8e8bf1e824..8afa1ccaf12e 100644
--- a/drivers/acpi/acpica/utosi.c
+++ b/drivers/acpi/acpica/utosi.c
@@ -73,6 +73,7 @@ static struct acpi_interface_info acpi_default_supported_interfaces[] = {
{"Windows 2018", NULL, 0, ACPI_OSI_WIN_10_RS4}, /* Windows 10 version 1803 - Added 11/2018 */
{"Windows 2018.2", NULL, 0, ACPI_OSI_WIN_10_RS5}, /* Windows 10 version 1809 - Added 11/2018 */
{"Windows 2019", NULL, 0, ACPI_OSI_WIN_10_19H1}, /* Windows 10 version 1903 - Added 08/2019 */
+ {"Windows 2020", NULL, 0, ACPI_OSI_WIN_10_20H1}, /* Windows 10 version 2004 - Added 08/2021 */
/* Feature Group Strings */
diff --git a/drivers/acpi/arm64/gtdt.c b/drivers/acpi/arm64/gtdt.c
index 0a0a982f9c28..c0e77c1c8e09 100644
--- a/drivers/acpi/arm64/gtdt.c
+++ b/drivers/acpi/arm64/gtdt.c
@@ -36,7 +36,7 @@ struct acpi_gtdt_descriptor {
static struct acpi_gtdt_descriptor acpi_gtdt_desc __initdata;
-static inline void *next_platform_timer(void *platform_timer)
+static inline __init void *next_platform_timer(void *platform_timer)
{
struct acpi_gtdt_header *gh = platform_timer;
diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c
index 7cf92158008f..c8e9b962e18c 100644
--- a/drivers/acpi/dock.c
+++ b/drivers/acpi/dock.c
@@ -492,7 +492,7 @@ static ssize_t docked_show(struct device *dev,
struct acpi_device *adev = NULL;
acpi_bus_get_device(dock_station->handle, &adev);
- return snprintf(buf, PAGE_SIZE, "%u\n", acpi_device_enumerated(adev));
+ return sysfs_emit(buf, "%u\n", acpi_device_enumerated(adev));
}
static DEVICE_ATTR_RO(docked);
@@ -504,7 +504,7 @@ static ssize_t flags_show(struct device *dev,
{
struct dock_station *dock_station = dev->platform_data;
- return snprintf(buf, PAGE_SIZE, "%d\n", dock_station->flags);
+ return sysfs_emit(buf, "%d\n", dock_station->flags);
}
static DEVICE_ATTR_RO(flags);
@@ -543,7 +543,7 @@ static ssize_t uid_show(struct device *dev,
if (ACPI_FAILURE(status))
return 0;
- return snprintf(buf, PAGE_SIZE, "%llx\n", lbuf);
+ return sysfs_emit(buf, "%llx\n", lbuf);
}
static DEVICE_ATTR_RO(uid);
@@ -562,7 +562,7 @@ static ssize_t type_show(struct device *dev,
else
type = "unknown";
- return snprintf(buf, PAGE_SIZE, "%s\n", type);
+ return sysfs_emit(buf, "%s\n", type);
}
static DEVICE_ATTR_RO(type);
diff --git a/drivers/acpi/glue.c b/drivers/acpi/glue.c
index 7a33a6d985f8..7cd0009e7ff3 100644
--- a/drivers/acpi/glue.c
+++ b/drivers/acpi/glue.c
@@ -17,6 +17,8 @@
#include <linux/rwsem.h>
#include <linux/acpi.h>
#include <linux/dma-mapping.h>
+#include <linux/pci.h>
+#include <linux/pci-acpi.h>
#include <linux/platform_device.h>
#include "internal.h"
@@ -111,13 +113,10 @@ struct acpi_device *acpi_find_child_device(struct acpi_device *parent,
return NULL;
list_for_each_entry(adev, &parent->children, node) {
- unsigned long long addr;
- acpi_status status;
+ acpi_bus_address addr = acpi_device_adr(adev);
int score;
- status = acpi_evaluate_integer(adev->handle, METHOD_NAME__ADR,
- NULL, &addr);
- if (ACPI_FAILURE(status) || addr != address)
+ if (!adev->pnp.type.bus_address || addr != address)
continue;
if (!ret) {
@@ -287,12 +286,13 @@ EXPORT_SYMBOL_GPL(acpi_unbind_one);
void acpi_device_notify(struct device *dev)
{
- struct acpi_bus_type *type = acpi_get_bus_type(dev);
struct acpi_device *adev;
int ret;
ret = acpi_bind_one(dev, NULL);
if (ret) {
+ struct acpi_bus_type *type = acpi_get_bus_type(dev);
+
if (!type)
goto err;
@@ -304,17 +304,26 @@ void acpi_device_notify(struct device *dev)
ret = acpi_bind_one(dev, adev);
if (ret)
goto err;
- }
- adev = ACPI_COMPANION(dev);
- if (dev_is_platform(dev))
- acpi_configure_pmsi_domain(dev);
+ if (type->setup) {
+ type->setup(dev);
+ goto done;
+ }
+ } else {
+ adev = ACPI_COMPANION(dev);
+
+ if (dev_is_pci(dev)) {
+ pci_acpi_setup(dev, adev);
+ goto done;
+ } else if (dev_is_platform(dev)) {
+ acpi_configure_pmsi_domain(dev);
+ }
+ }
- if (type && type->setup)
- type->setup(dev);
- else if (adev->handler && adev->handler->bind)
+ if (adev->handler && adev->handler->bind)
adev->handler->bind(dev);
+done:
acpi_handle_debug(ACPI_HANDLE(dev), "Bound to device %s\n",
dev_name(dev));
@@ -327,16 +336,39 @@ err:
void acpi_device_notify_remove(struct device *dev)
{
struct acpi_device *adev = ACPI_COMPANION(dev);
- struct acpi_bus_type *type;
if (!adev)
return;
- type = acpi_get_bus_type(dev);
- if (type && type->cleanup)
- type->cleanup(dev);
+ if (dev_is_pci(dev))
+ pci_acpi_cleanup(dev, adev);
else if (adev->handler && adev->handler->unbind)
adev->handler->unbind(dev);
acpi_unbind_one(dev);
}
+
+int acpi_dev_turn_off_if_unused(struct device *dev, void *not_used)
+{
+ struct acpi_device *adev = to_acpi_device(dev);
+
+ /*
+ * Skip device objects with device IDs, because they may be in use even
+ * if they are not companions of any physical device objects.
+ */
+ if (adev->pnp.type.hardware_id)
+ return 0;
+
+ mutex_lock(&adev->physical_node_lock);
+
+ /*
+ * Device objects without device IDs are not in use if they have no
+ * corresponding physical device objects.
+ */
+ if (list_empty(&adev->physical_node_list))
+ acpi_device_set_power(adev, ACPI_STATE_D3_COLD);
+
+ mutex_unlock(&adev->physical_node_lock);
+
+ return 0;
+}
diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index d91b560e8867..8fbdc172864b 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -117,6 +117,7 @@ bool acpi_device_is_battery(struct acpi_device *adev);
bool acpi_device_is_first_physical_node(struct acpi_device *adev,
const struct device *dev);
int acpi_bus_register_early_device(int type);
+int acpi_dev_turn_off_if_unused(struct device *dev, void *not_used);
/* --------------------------------------------------------------------------
Device Matching and Notification
diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c
index b9863e22b952..112256154880 100644
--- a/drivers/acpi/power.c
+++ b/drivers/acpi/power.c
@@ -52,7 +52,6 @@ struct acpi_power_resource {
u32 order;
unsigned int ref_count;
u8 state;
- bool wakeup_enabled;
struct mutex resource_lock;
struct list_head dependents;
};
@@ -615,20 +614,19 @@ int acpi_power_wakeup_list_init(struct list_head *list, int *system_level_p)
list_for_each_entry(entry, list, node) {
struct acpi_power_resource *resource = entry->resource;
- int result;
u8 state;
mutex_lock(&resource->resource_lock);
- result = acpi_power_get_state(resource, &state);
- if (result) {
- mutex_unlock(&resource->resource_lock);
- return result;
- }
- if (state == ACPI_POWER_RESOURCE_STATE_ON) {
- resource->ref_count++;
- resource->wakeup_enabled = true;
- }
+ /*
+ * Make sure that the power resource state and its reference
+ * counter value are consistent with each other.
+ */
+ if (!resource->ref_count &&
+ !acpi_power_get_state(resource, &state) &&
+ state == ACPI_POWER_RESOURCE_STATE_ON)
+ __acpi_power_off(resource);
+
if (system_level > resource->system_level)
system_level = resource->system_level;
@@ -711,7 +709,6 @@ int acpi_device_sleep_wake(struct acpi_device *dev,
*/
int acpi_enable_wakeup_device_power(struct acpi_device *dev, int sleep_state)
{
- struct acpi_power_resource_entry *entry;
int err = 0;
if (!dev || !dev->wakeup.flags.valid)
@@ -722,33 +719,22 @@ int acpi_enable_wakeup_device_power(struct acpi_device *dev, int sleep_state)
if (dev->wakeup.prepare_count++)
goto out;
- list_for_each_entry(entry, &dev->wakeup.resources, node) {
- struct acpi_power_resource *resource = entry->resource;
-
- mutex_lock(&resource->resource_lock);
-
- if (!resource->wakeup_enabled) {
- err = acpi_power_on_unlocked(resource);
- if (!err)
- resource->wakeup_enabled = true;
- }
-
- mutex_unlock(&resource->resource_lock);
-
- if (err) {
- dev_err(&dev->dev,
- "Cannot turn wakeup power resources on\n");
- dev->wakeup.flags.valid = 0;
- goto out;
- }
+ err = acpi_power_on_list(&dev->wakeup.resources);
+ if (err) {
+ dev_err(&dev->dev, "Cannot turn on wakeup power resources\n");
+ dev->wakeup.flags.valid = 0;
+ goto out;
}
+
/*
* Passing 3 as the third argument below means the device may be
* put into arbitrary power state afterward.
*/
err = acpi_device_sleep_wake(dev, 1, sleep_state, 3);
- if (err)
+ if (err) {
+ acpi_power_off_list(&dev->wakeup.resources);
dev->wakeup.prepare_count = 0;
+ }
out:
mutex_unlock(&acpi_device_lock);
@@ -771,39 +757,33 @@ int acpi_disable_wakeup_device_power(struct acpi_device *dev)
mutex_lock(&acpi_device_lock);
- if (--dev->wakeup.prepare_count > 0)
+ if (dev->wakeup.prepare_count > 1) {
+ dev->wakeup.prepare_count--;
goto out;
+ }
- /*
- * Executing the code below even if prepare_count is already zero when
- * the function is called may be useful, for example for initialisation.
- */
- if (dev->wakeup.prepare_count < 0)
- dev->wakeup.prepare_count = 0;
+ /* Do nothing if wakeup power has not been enabled for this device. */
+ if (!dev->wakeup.prepare_count)
+ goto out;
err = acpi_device_sleep_wake(dev, 0, 0, 0);
if (err)
goto out;
+ /*
+ * All of the power resources in the list need to be turned off even if
+ * there are errors.
+ */
list_for_each_entry(entry, &dev->wakeup.resources, node) {
- struct acpi_power_resource *resource = entry->resource;
-
- mutex_lock(&resource->resource_lock);
-
- if (resource->wakeup_enabled) {
- err = acpi_power_off_unlocked(resource);
- if (!err)
- resource->wakeup_enabled = false;
- }
-
- mutex_unlock(&resource->resource_lock);
+ int ret;
- if (err) {
- dev_err(&dev->dev,
- "Cannot turn wakeup power resources off\n");
- dev->wakeup.flags.valid = 0;
- break;
- }
+ ret = acpi_power_off(entry->resource);
+ if (ret && !err)
+ err = ret;
+ }
+ if (err) {
+ dev_err(&dev->dev, "Cannot turn off wakeup power resources\n");
+ dev->wakeup.flags.valid = 0;
}
out:
@@ -943,6 +923,7 @@ struct acpi_device *acpi_add_power_resource(acpi_handle handle)
union acpi_object acpi_object;
struct acpi_buffer buffer = { sizeof(acpi_object), &acpi_object };
acpi_status status;
+ u8 state_dummy;
int result;
acpi_bus_get_device(handle, &device);
@@ -971,6 +952,10 @@ struct acpi_device *acpi_add_power_resource(acpi_handle handle)
resource->order = acpi_object.power_resource.resource_order;
resource->state = ACPI_POWER_RESOURCE_STATE_UNKNOWN;
+ /* Get the initial state or just flip it on if that fails. */
+ if (acpi_power_get_state(resource, &state_dummy))
+ __acpi_power_on(resource);
+
pr_info("%s [%s]\n", acpi_device_name(device), acpi_device_bid(device));
device->flags.match_driver = true;
@@ -1035,13 +1020,8 @@ void acpi_turn_off_unused_power_resources(void)
list_for_each_entry_reverse(resource, &acpi_power_resource_list, list_node) {
mutex_lock(&resource->resource_lock);
- /*
- * Turn off power resources in an unknown state too, because the
- * platform firmware on some system expects the OS to turn off
- * power resources without any users unconditionally.
- */
if (!resource->ref_count &&
- resource->state != ACPI_POWER_RESOURCE_STATE_OFF) {
+ resource->state == ACPI_POWER_RESOURCE_STATE_ON) {
acpi_handle_debug(resource->device.handle, "Turning OFF\n");
__acpi_power_off(resource);
}
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index f37fba9e5ba0..76ef1bcc8848 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -789,7 +789,8 @@ static int acpi_processor_setup_cstates(struct acpi_processor *pr)
state->enter = acpi_idle_enter;
state->flags = 0;
- if (cx->type == ACPI_STATE_C1 || cx->type == ACPI_STATE_C2) {
+ if (cx->type == ACPI_STATE_C1 || cx->type == ACPI_STATE_C2 ||
+ cx->type == ACPI_STATE_C3) {
state->enter_dead = acpi_idle_play_dead;
drv->safe_state_index = count;
}
diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c
index ee78a210c606..3c25ce8c95ba 100644
--- a/drivers/acpi/resource.c
+++ b/drivers/acpi/resource.c
@@ -16,6 +16,7 @@
#include <linux/ioport.h>
#include <linux/slab.h>
#include <linux/irq.h>
+#include <linux/dmi.h>
#ifdef CONFIG_X86
#define valid_IRQ(i) (((i) != 0) && ((i) != 2))
@@ -380,9 +381,58 @@ unsigned int acpi_dev_get_irq_type(int triggering, int polarity)
}
EXPORT_SYMBOL_GPL(acpi_dev_get_irq_type);
+static const struct dmi_system_id medion_laptop[] = {
+ {
+ .ident = "MEDION P15651",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "MEDION"),
+ DMI_MATCH(DMI_BOARD_NAME, "M15T"),
+ },
+ },
+ {
+ .ident = "MEDION S17405",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "MEDION"),
+ DMI_MATCH(DMI_BOARD_NAME, "M17T"),
+ },
+ },
+ { }
+};
+
+struct irq_override_cmp {
+ const struct dmi_system_id *system;
+ unsigned char irq;
+ unsigned char triggering;
+ unsigned char polarity;
+ unsigned char shareable;
+};
+
+static const struct irq_override_cmp skip_override_table[] = {
+ { medion_laptop, 1, ACPI_LEVEL_SENSITIVE, ACPI_ACTIVE_LOW, 0 },
+};
+
+static bool acpi_dev_irq_override(u32 gsi, u8 triggering, u8 polarity,
+ u8 shareable)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(skip_override_table); i++) {
+ const struct irq_override_cmp *entry = &skip_override_table[i];
+
+ if (dmi_check_system(entry->system) &&
+ entry->irq == gsi &&
+ entry->triggering == triggering &&
+ entry->polarity == polarity &&
+ entry->shareable == shareable)
+ return false;
+ }
+
+ return true;
+}
+
static void acpi_dev_get_irqresource(struct resource *res, u32 gsi,
u8 triggering, u8 polarity, u8 shareable,
- bool legacy)
+ bool check_override)
{
int irq, p, t;
@@ -401,7 +451,9 @@ static void acpi_dev_get_irqresource(struct resource *res, u32 gsi,
* using extended IRQ descriptors we take the IRQ configuration
* from _CRS directly.
*/
- if (legacy && !acpi_get_override_irq(gsi, &t, &p)) {
+ if (check_override &&
+ acpi_dev_irq_override(gsi, triggering, polarity, shareable) &&
+ !acpi_get_override_irq(gsi, &t, &p)) {
u8 trig = t ? ACPI_LEVEL_SENSITIVE : ACPI_EDGE_SENSITIVE;
u8 pol = p ? ACPI_ACTIVE_LOW : ACPI_ACTIVE_HIGH;
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 5b54c80b9d32..770b82483d74 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -2559,6 +2559,12 @@ int __init acpi_scan_init(void)
}
}
+ /*
+ * Make sure that power management resources are not blocked by ACPI
+ * device objects with no users.
+ */
+ bus_for_each_dev(&acpi_bus_type, NULL, NULL, acpi_dev_turn_off_if_unused);
+
acpi_turn_off_unused_power_resources();
acpi_scan_initialized = true;
diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index 3023224515ab..eaa47753b758 100644
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -815,14 +815,18 @@ void __weak acpi_s2idle_setup(void)
static void acpi_sleep_suspend_setup(void)
{
+ bool suspend_ops_needed = false;
int i;
for (i = ACPI_STATE_S1; i < ACPI_STATE_S4; i++)
- if (acpi_sleep_state_supported(i))
+ if (acpi_sleep_state_supported(i)) {
sleep_states[i] = 1;
+ suspend_ops_needed = true;
+ }
- suspend_set_ops(old_suspend_ordering ?
- &acpi_suspend_ops_old : &acpi_suspend_ops);
+ if (suspend_ops_needed)
+ suspend_set_ops(old_suspend_ordering ?
+ &acpi_suspend_ops_old : &acpi_suspend_ops);
acpi_s2idle_setup();
}
diff --git a/drivers/acpi/tables.c b/drivers/acpi/tables.c
index f9383736fa0f..71419eb16e09 100644
--- a/drivers/acpi/tables.c
+++ b/drivers/acpi/tables.c
@@ -21,6 +21,7 @@
#include <linux/earlycpio.h>
#include <linux/initrd.h>
#include <linux/security.h>
+#include <linux/kmemleak.h>
#include "internal.h"
#ifdef CONFIG_ACPI_CUSTOM_DSDT
@@ -601,6 +602,8 @@ void __init acpi_table_upgrade(void)
*/
arch_reserve_mem_area(acpi_tables_addr, all_tables_size);
+ kmemleak_ignore_phys(acpi_tables_addr);
+
/*
* early_ioremap only can remap 256k one time. If we map all
* tables one time, we will hit the limit. Need to map chunks
diff --git a/drivers/acpi/x86/s2idle.c b/drivers/acpi/x86/s2idle.c
index bd92b549fd5a..1c48358b43ba 100644
--- a/drivers/acpi/x86/s2idle.c
+++ b/drivers/acpi/x86/s2idle.c
@@ -371,7 +371,7 @@ static int lps0_device_attach(struct acpi_device *adev,
return 0;
if (acpi_s2idle_vendor_amd()) {
- /* AMD0004, AMDI0005:
+ /* AMD0004, AMD0005, AMDI0005:
* - Should use rev_id 0x0
* - function mask > 0x3: Should use AMD method, but has off by one bug
* - function mask = 0x3: Should use Microsoft method
@@ -390,6 +390,7 @@ static int lps0_device_attach(struct acpi_device *adev,
ACPI_LPS0_DSM_UUID_MICROSOFT, 0,
&lps0_dsm_guid_microsoft);
if (lps0_dsm_func_mask > 0x3 && (!strcmp(hid, "AMD0004") ||
+ !strcmp(hid, "AMD0005") ||
!strcmp(hid, "AMDI0005"))) {
lps0_dsm_func_mask = (lps0_dsm_func_mask << 1) | 0x1;
acpi_handle_debug(adev->handle, "_DSM UUID %s: Adjusted function mask: 0x%x\n",
generated by cgit v1.2.3 (git 2.39.0) at 2025-03-06 11:11:22 +0300