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| author | Kornel Dulęba <korneld@google.com> | 2023-04-14 13:23:57 +0000 |
|---|---|---|
| committer | Chromeos LUCI <chromeos-scoped@luci-project-accounts.iam.gserviceaccount.com> | 2023-04-21 18:00:45 +0000 |
| commit | 0852c76440bade57d203bc0f985de56a548c530c (patch) | |
| tree | 243d19c8425fdb59b73a3c6d21ade1cdf9816850 | |
| parent | 17b095b064576c66e8556e6bb194ab8e8d23f412 (diff) | |
| download | chrome-ec-0852c76440bade57d203bc0f985de56a548c530c.tar.gz | |
whiterun: Adjust CPU fan thermal parameters
The difference between temp_fan_off and temp_fan_max was set to 6°C.
Consequently, a one-degree difference in CPU temperature would cause
a significant change in fan RPM. This results in noticeable noise
variations when the CPU is subjected to a specific load.
To alleviate this issue, decrease the temp_fan_off by 4°C, which,
in turn, reduces the steepness of the temperature-to-RPM relationship.
BUG=b:276577324
BRANCH=none
TEST=Run webGL aquarium with various number of fish
Change-Id: I72ec924e61a68e61a9c7f9721b7df15d18aaa2ee
Signed-off-by: Kornel Dulęba <korneld@google.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/4427797
Reviewed-by: Diana Z <dzigterman@chromium.org>
Reviewed-by: Tim Van Patten <timvp@google.com>
Reviewed-by: Radoslaw Biernacki <biernacki@google.com>
| -rw-r--r-- | zephyr/program/skyrim/winterhold/src/thermal.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/zephyr/program/skyrim/winterhold/src/thermal.c b/zephyr/program/skyrim/winterhold/src/thermal.c index 8292751f50..00e162e45a 100644 --- a/zephyr/program/skyrim/winterhold/src/thermal.c +++ b/zephyr/program/skyrim/winterhold/src/thermal.c @@ -140,7 +140,7 @@ __maybe_unused static const struct ec_thermal_config fan_soc_laptop = */ #define FAN_CPU_DESKTOP_LID_OPEN \ { \ - .temp_fan_off = C_TO_K(76), .temp_fan_max = C_TO_K(82), \ + .temp_fan_off = C_TO_K(72), .temp_fan_max = C_TO_K(82), \ } __maybe_unused static const struct ec_thermal_config fan_cpu_desktop_lid_open = FAN_CPU_DESKTOP_LID_OPEN; @@ -150,7 +150,7 @@ __maybe_unused static const struct ec_thermal_config fan_cpu_desktop_lid_open = */ #define FAN_CPU_DESKTOP_LID_CLOSE \ { \ - .temp_fan_off = C_TO_K(76), .temp_fan_max = C_TO_K(82), \ + .temp_fan_off = C_TO_K(72), .temp_fan_max = C_TO_K(82), \ } __maybe_unused static const struct ec_thermal_config fan_cpu_desktop_lid_close = FAN_CPU_DESKTOP_LID_CLOSE; @@ -160,7 +160,7 @@ __maybe_unused static const struct ec_thermal_config fan_cpu_desktop_lid_close = */ #define FAN_CPU_LAPTOP \ { \ - .temp_fan_off = C_TO_K(72), .temp_fan_max = C_TO_K(78), \ + .temp_fan_off = C_TO_K(68), .temp_fan_max = C_TO_K(78), \ } __maybe_unused static const struct ec_thermal_config fan_cpu_laptop = FAN_CPU_LAPTOP; |