module_param(ec_storm_threshold, uint, 0644);
MODULE_PARM_DESC(ec_storm_threshold, "Maxim false GPE numbers not considered as GPE storm");
-static bool ec_freeze_events __read_mostly = true;
+static bool ec_freeze_events __read_mostly = false;
module_param(ec_freeze_events, bool, 0644);
MODULE_PARM_DESC(ec_freeze_events, "Disabling event handling during suspend/resume");
}
#ifdef CONFIG_PM_SLEEP
-static int acpi_ec_suspend_noirq(struct device *dev)
-{
- struct acpi_ec *ec =
- acpi_driver_data(to_acpi_device(dev));
-
- acpi_ec_enter_noirq(ec);
- return 0;
-}
-
-static int acpi_ec_resume_noirq(struct device *dev)
-{
- struct acpi_ec *ec =
- acpi_driver_data(to_acpi_device(dev));
-
- acpi_ec_leave_noirq(ec);
- return 0;
-}
-
static int acpi_ec_suspend(struct device *dev)
{
struct acpi_ec *ec =
#endif
static const struct dev_pm_ops acpi_ec_pm = {
- SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(acpi_ec_suspend_noirq, acpi_ec_resume_noirq)
SET_SYSTEM_SLEEP_PM_OPS(acpi_ec_suspend, acpi_ec_resume)
};
*/
#include <linux/acpi.h>
+#include <linux/dmi.h>
#include <asm/cpu_device_id.h>
#include <asm/intel-family.h>
#include "../internal.h"
* Some ACPI devices are hidden (status == 0x0) in recent BIOS-es because
* some recent Windows drivers bind to one device but poke at multiple
* devices at the same time, so the others get hidden.
+ *
+ * Some BIOS-es (temporarily) hide specific APCI devices to work around Windows
+ * driver bugs. We use DMI matching to match known cases of this.
+ *
* We work around this by always reporting ACPI_STA_DEFAULT for these
* devices. Note this MUST only be done for devices where this is safe.
*
struct always_present_id {
struct acpi_device_id hid[2];
struct x86_cpu_id cpu_ids[2];
+ struct dmi_system_id dmi_ids[2]; /* Optional */
const char *uid;
};
#define ICPU(model) { X86_VENDOR_INTEL, 6, model, X86_FEATURE_ANY, }
-#define ENTRY(hid, uid, cpu_models) { \
+#define ENTRY(hid, uid, cpu_models, dmi...) { \
{ { hid, }, {} }, \
{ cpu_models, {} }, \
+ { { .matches = dmi }, {} }, \
uid, \
}
* Bay / Cherry Trail PWM directly poked by GPU driver in win10,
* but Linux uses a separate PWM driver, harmless if not used.
*/
- ENTRY("80860F09", "1", ICPU(INTEL_FAM6_ATOM_SILVERMONT1)),
- ENTRY("80862288", "1", ICPU(INTEL_FAM6_ATOM_AIRMONT)),
+ ENTRY("80860F09", "1", ICPU(INTEL_FAM6_ATOM_SILVERMONT1), {}),
+ ENTRY("80862288", "1", ICPU(INTEL_FAM6_ATOM_AIRMONT), {}),
/*
* The INT0002 device is necessary to clear wakeup interrupt sources
* on Cherry Trail devices, without it we get nobody cared IRQ msgs.
*/
- ENTRY("INT0002", "1", ICPU(INTEL_FAM6_ATOM_AIRMONT)),
+ ENTRY("INT0002", "1", ICPU(INTEL_FAM6_ATOM_AIRMONT), {}),
+ /*
+ * On the Dell Venue 11 Pro 7130 the DSDT hides the touchscreen ACPI
+ * device until a certain time after _SB.PCI0.GFX0.LCD.LCD1._ON gets
+ * called has passed *and* _STA has been called at least 3 times since.
+ */
+ ENTRY("SYNA7500", "1", ICPU(INTEL_FAM6_HASWELL_ULT), {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Venue 11 Pro 7130"),
+ }),
+ /*
+ * The GPD win BIOS dated 20170320 has disabled the accelerometer, the
+ * drivers sometimes cause crashes under Windows and this is how the
+ * manufacturer has solved this :| Note that the the DMI data is less
+ * generic then it seems, a board_vendor of "AMI Corporation" is quite
+ * rare and a board_name of "Default String" also is rare.
+ */
+ ENTRY("KIOX000A", "1", ICPU(INTEL_FAM6_ATOM_AIRMONT), {
+ DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
+ DMI_MATCH(DMI_BOARD_NAME, "Default string"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Default string"),
+ DMI_MATCH(DMI_BIOS_DATE, "03/20/2017")
+ }),
};
bool acpi_device_always_present(struct acpi_device *adev)
if (!x86_match_cpu(always_present_ids[i].cpu_ids))
continue;
+ if (always_present_ids[i].dmi_ids[0].matches[0].slot &&
+ !dmi_check_system(always_present_ids[i].dmi_ids))
+ continue;
+
if (old_status != ACPI_STA_DEFAULT) /* Log only once */
dev_info(&adev->dev,
"Device [%s] is in always present list\n",