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-rw-r--r--src/acpi/acpigen_dptf.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/acpi/acpigen_dptf.c b/src/acpi/acpigen_dptf.c
index 0c44b8f8ba..b3cc37a256 100644
--- a/src/acpi/acpigen_dptf.c
+++ b/src/acpi/acpigen_dptf.c
@@ -17,6 +17,7 @@ enum {
DEFAULT_TRIP_POINT = 0xFFFFFFFFull,
DEFAULT_WEIGHT = 100,
DPTF_MAX_ART_THRESHOLDS = 10,
+ FPS_REVISION = 0,
PPCC_REVISION = 2,
RAPL_PL1_INDEX = 0,
RAPL_PL2_INDEX = 1,
@@ -353,7 +354,8 @@ void dptf_write_fan_perf(const struct dptf_fan_perf *states, int max_count)
/* _FPS - Fan Performance States */
acpigen_write_name("_FPS");
- pkg_count = acpigen_write_package(0);
+ pkg_count = acpigen_write_package(1); /* 1 for Revision */
+ acpigen_write_integer(FPS_REVISION); /* revision */
for (i = 0; i < max_count; ++i) {
/*