1 files changed, 8 insertions, 2 deletions

diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c
index ba0e74ad74bb..77bf4aa217a8 100644
--- a/drivers/char/hpet.c
+++ b/drivers/char/hpet.c
@@ -73,7 +73,7 @@ static struct clocksource clocksource_hpet = {
         .name           = "hpet",
         .rating         = 250,
         .read           = read_hpet,
-        .mask           = 0xffffffffffffffff,
+        .mask           = CLOCKSOURCE_MASK(64),
         .mult           = 0, /*to be caluclated*/
         .shift          = 10,
         .flags          = CLOCK_SOURCE_IS_CONTINUOUS,
@@ -1007,9 +1007,15 @@ static int hpet_acpi_remove(struct acpi_device *device, int type)
         return -EINVAL;
 }
 
+static const struct acpi_device_id hpet_device_ids[] = {
+        {"PNP0103", 0},
+        {"", 0},
+};
+MODULE_DEVICE_TABLE(acpi, hpet_device_ids);
+
 static struct acpi_driver hpet_acpi_driver = {
         .name = "hpet",
-        .ids = "PNP0103",
+        .ids = hpet_device_ids,
         .ops = {
                 .add = hpet_acpi_add,
                 .remove = hpet_acpi_remove,