diff options
| author | Tim Wawrzynczak <twawrzynczak@chromium.org> | 2020-07-27 13:51:04 -0600 |
|---|---|---|
| committer | Tim Wawrzynczak <twawrzynczak@chromium.org> | 2020-07-28 22:17:55 +0000 |
| commit | a9d3e652f79ba0b2036ebf8f09187adccaf5e4b3 (patch) | |
| tree | 3f15fbccc74459cfe22c3269970bf9a0c9bcc6a6 /src/acpi | |
| parent | 82ec61e9d7a39a11c9b8ed68eb90bd29905439bc (diff) | |
acpi: Fix dptf_write_fan_perf to include Revision field
When emitting a fan's _FPS (Fan Performance States) table, the revision
field was missing. According to ACPI spec 6.3, the current revision is
zero, so add that Package entry before the others.
BUG=b:149722146
TEST=verified first element of \_SB.DPTF.TFN1._FPS is 0
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: If16d4751f1d924807f5087d93b348e58d5265197
Reviewed-on: https://review.coreboot.org/c/coreboot/+/43978
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Sumeet R Pawnikar <sumeet.r.pawnikar@intel.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/acpi')
| -rw-r--r-- | src/acpi/acpigen_dptf.c | 4 |
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) { /* |