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authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2018-03-16 13:51:01 +0100
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2018-03-20 10:36:04 +0100
commit95c513ec84f7ff35cd9d8c7ce4a99f770bd82c3b (patch)
tree8bc974278c3d0d7118a49ca1253f29b1912e53a4 /drivers/acpi/Makefile
parentc698ca5278934c0ae32297a8725ced2e27585d7f (diff)
ACPI: Add Time and Alarm Device (TAD) driver
Introduce a driver for the ACPI Time and Alarm Device (TAD) based on Section 9.18 of ACPI 6.2. This driver only supports the system wakeup capabilities of the TAD which are mandatory. Support for the RTC capabilities of the TAD will be added to it in the future. This driver is entirely sysfs-based. It provides attributes (under the TAD platform device) to allow user space to manage the AC and DC wakeup timers of the TAD: set and read their values, set and check their expire timer wake policies, check and clear their status and check the capabilities of the TAD reported by AML. The DC timer attributes are only present if the TAD supports a separate DC alarm timer. The wakeup events handling and power management of the TAD is expected to be taken care of by the ACPI PM domain attached to its platform device. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Tested-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Diffstat (limited to 'drivers/acpi/Makefile')
-rw-r--r--drivers/acpi/Makefile1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile
index 41954a601989..48e202752754 100644
--- a/drivers/acpi/Makefile
+++ b/drivers/acpi/Makefile
@@ -70,6 +70,7 @@ obj-$(CONFIG_ACPI_AC) += ac.o
obj-$(CONFIG_ACPI_BUTTON) += button.o
obj-$(CONFIG_ACPI_FAN) += fan.o
obj-$(CONFIG_ACPI_VIDEO) += video.o
+obj-$(CONFIG_ACPI_TAD) += acpi_tad.o
obj-$(CONFIG_ACPI_PCI_SLOT) += pci_slot.o
obj-$(CONFIG_ACPI_PROCESSOR) += processor.o
obj-$(CONFIG_ACPI) += container.o