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>
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@ -17,6 +17,7 @@ enum {
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DEFAULT_TRIP_POINT = 0xFFFFFFFFull,
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DEFAULT_WEIGHT = 100,
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DPTF_MAX_ART_THRESHOLDS = 10,
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FPS_REVISION = 0,
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PPCC_REVISION = 2,
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RAPL_PL1_INDEX = 0,
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RAPL_PL2_INDEX = 1,
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@ -353,7 +354,8 @@ void dptf_write_fan_perf(const struct dptf_fan_perf *states, int max_count)
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/* _FPS - Fan Performance States */
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acpigen_write_name("_FPS");
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pkg_count = acpigen_write_package(0);
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pkg_count = acpigen_write_package(1); /* 1 for Revision */
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acpigen_write_integer(FPS_REVISION); /* revision */
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for (i = 0; i < max_count; ++i) {
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/*
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