diff options
Diffstat (limited to 'drivers/acpi')
| -rw-r--r-- | drivers/acpi/acpi_processor.c | 4 | ||||
| -rw-r--r-- | drivers/acpi/bus.c | 42 | ||||
| -rw-r--r-- | drivers/acpi/sleep.c | 19 |
3 files changed, 63 insertions, 2 deletions
diff --git a/drivers/acpi/acpi_processor.c b/drivers/acpi/acpi_processor.c index 3de3b6b8f0f1..4467a8089ab8 100644 --- a/drivers/acpi/acpi_processor.c +++ b/drivers/acpi/acpi_processor.c @@ -165,7 +165,7 @@ static int acpi_processor_errata(void) #ifdef CONFIG_ACPI_HOTPLUG_CPU int __weak acpi_map_cpu(acpi_handle handle, - phys_cpuid_t physid, int *pcpu) + phys_cpuid_t physid, u32 acpi_id, int *pcpu) { return -ENODEV; } @@ -203,7 +203,7 @@ static int acpi_processor_hotadd_init(struct acpi_processor *pr) cpu_maps_update_begin(); cpu_hotplug_begin(); - ret = acpi_map_cpu(pr->handle, pr->phys_id, &pr->id); + ret = acpi_map_cpu(pr->handle, pr->phys_id, pr->acpi_id, &pr->id); if (ret) goto out; diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index 95855cb9d6fb..80cb5eb75b63 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -677,6 +677,48 @@ static bool acpi_of_match_device(struct acpi_device *adev, return false; } +static bool acpi_of_modalias(struct acpi_device *adev, + char *modalias, size_t len) +{ + const union acpi_object *of_compatible; + const union acpi_object *obj; + const char *str, *chr; + + of_compatible = adev->data.of_compatible; + if (!of_compatible) + return false; + + if (of_compatible->type == ACPI_TYPE_PACKAGE) + obj = of_compatible->package.elements; + else /* Must be ACPI_TYPE_STRING. */ + obj = of_compatible; + + str = obj->string.pointer; + chr = strchr(str, ','); + strlcpy(modalias, chr ? chr + 1 : str, len); + + return true; +} + +/** + * acpi_set_modalias - Set modalias using "compatible" property or supplied ID + * @adev: ACPI device object to match + * @default_id: ID string to use as default if no compatible string found + * @modalias: Pointer to buffer that modalias value will be copied into + * @len: Length of modalias buffer + * + * This is a counterpart of of_modalias_node() for struct acpi_device objects. + * If there is a compatible string for @adev, it will be copied to @modalias + * with the vendor prefix stripped; otherwise, @default_id will be used. + */ +void acpi_set_modalias(struct acpi_device *adev, const char *default_id, + char *modalias, size_t len) +{ + if (!acpi_of_modalias(adev, modalias, len)) + strlcpy(modalias, default_id, len); +} +EXPORT_SYMBOL_GPL(acpi_set_modalias); + static bool __acpi_match_device_cls(const struct acpi_device_id *id, struct acpi_hardware_id *hwid) { diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c index 54abb26b7366..a4327af676fe 100644 --- a/drivers/acpi/sleep.c +++ b/drivers/acpi/sleep.c @@ -130,6 +130,12 @@ void __init acpi_nvs_nosave_s3(void) nvs_nosave_s3 = true; } +static int __init init_nvs_save_s3(const struct dmi_system_id *d) +{ + nvs_nosave_s3 = false; + return 0; +} + /* * ACPI 1.0 wants us to execute _PTS before suspending devices, so we allow the * user to request that behavior by using the 'acpi_old_suspend_ordering' @@ -324,6 +330,19 @@ static struct dmi_system_id acpisleep_dmi_table[] __initdata = { DMI_MATCH(DMI_PRODUCT_NAME, "K54HR"), }, }, + /* + * https://bugzilla.kernel.org/show_bug.cgi?id=189431 + * Lenovo G50-45 is a platform later than 2012, but needs nvs memory + * saving during S3. + */ + { + .callback = init_nvs_save_s3, + .ident = "Lenovo G50-45", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_NAME, "80E3"), + }, + }, {}, }; |