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path: root/drivers/acpi/sleep.c
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Diffstat (limited to 'drivers/acpi/sleep.c')
-rw-r--r--drivers/acpi/sleep.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index 808484d11209..f9cba0e648c5 100644
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -84,11 +84,16 @@ static int acpi_sleep_prepare(u32 acpi_state)
return 0;
}
+static u8 max_sleep_state = -1;
+
bool acpi_sleep_state_supported(u8 sleep_state)
{
acpi_status status;
u8 type_a, type_b;
+ if (sleep_state > max_sleep_state)
+ return false;
+
status = acpi_get_sleep_type_data(sleep_state, &type_a, &type_b);
return ACPI_SUCCESS(status) && (!acpi_gbl_reduced_hardware
|| (acpi_gbl_FADT.sleep_control.address
@@ -165,6 +170,13 @@ static int __init init_nvs_nosave(const struct dmi_system_id *d)
return 0;
}
+static int __init init_nosleep(const struct dmi_system_id *d)
+{
+ pr_info("Disabling ACPI suspend\n");
+ max_sleep_state = 0;
+ return 0;
+}
+
bool acpi_sleep_default_s3;
static int __init init_default_s3(const struct dmi_system_id *d)
@@ -397,6 +409,14 @@ static const struct dmi_system_id acpisleep_dmi_table[] __initconst = {
DMI_MATCH(DMI_PRODUCT_NAME, "ASUS EXPERTBOOK B1400CEAE"),
},
},
+ {
+ .callback = init_nosleep,
+ .ident = "samus",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "GOOGLE"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Samus"),
+ },
+ },
{},
};