diff options
| author | Tim Wawrzynczak <twawrzynczak@chromium.org> | 2020-05-29 14:58:16 -0600 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2020-07-07 17:23:34 +0000 |
| commit | e4d8ebcef783f89fb9645d26d339dfb33065530f (patch) | |
| tree | 64c3e2a82717910329216e4f5ed68430cea9c1d9 /src/drivers/intel/dptf/dptf.c | |
| parent | bb5c255907378a5c5798b5dab3616df1e63d3ee7 (diff) | |
dptf: Add support for Fan and TSR options
DPTF has several options on how to control the fan (fine-grained speed
control, minimum speed change in percentage points, and whether or not
the DPTF device should notify the Fan if it detects low speed).
Individual TSRs can also set GTSH, which is the amount of hysteresis
inherent in the measurement, either from circuitry (if analog), or in
firmware (if digital).
BUG=b:143539650
TEST=compiles
Change-Id: I42d789d877da28c163e394d7de5fb1ff339264eb
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41891
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Diffstat (limited to 'src/drivers/intel/dptf/dptf.c')
| -rw-r--r-- | src/drivers/intel/dptf/dptf.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/src/drivers/intel/dptf/dptf.c b/src/drivers/intel/dptf/dptf.c index 15a7d1297b..1fe9653eb7 100644 --- a/src/drivers/intel/dptf/dptf.c +++ b/src/drivers/intel/dptf/dptf.c @@ -62,6 +62,12 @@ static const char *dptf_acpi_name(const struct device *dev) static void dptf_fill_ssdt(const struct device *dev) { struct drivers_intel_dptf_config *config = config_of(dev); + enum dptf_participant p; + bool tsr_en[DPTF_MAX_TSR] = {false}; + int i; + + for (p = DPTF_TEMP_SENSOR_0, i = 0; p <= DPTF_TEMP_SENSOR_3; ++p, ++i) + tsr_en[i] = is_participant_used(config, p); dptf_write_active_policies(config->policies.active, DPTF_MAX_ACTIVE_POLICIES); @@ -77,6 +83,19 @@ static void dptf_fill_ssdt(const struct device *dev) dptf_write_fan_perf(config->controls.fan_perf, DPTF_MAX_FAN_PERF_STATES); dptf_write_power_limits(&config->controls.power_limits); + /* Fan options */ + dptf_write_fan_options(config->options.fan.fine_grained_control, + config->options.fan.step_size, + config->options.fan.low_speed_notify); + + /* TSR options */ + for (p = DPTF_TEMP_SENSOR_0, i = 0; p <= DPTF_TEMP_SENSOR_3; ++p, ++i) { + if (tsr_en[i]) { + dptf_write_tsr_hysteresis(config->options.tsr[i].hysteresis); + dptf_write_STR(config->options.tsr[i].desc); + } + } + printk(BIOS_INFO, "\\_SB.DPTF: %s at %s\n", dev->chip_ops->name, dev_path(dev)); } |