summaryrefslogtreecommitdiff
path: root/src/drivers/intel
diff options
context:
space:
mode:
Diffstat (limited to 'src/drivers/intel')
-rw-r--r--src/drivers/intel/dptf/chip.h27
-rw-r--r--src/drivers/intel/dptf/dptf.c19
2 files changed, 46 insertions, 0 deletions
diff --git a/src/drivers/intel/dptf/chip.h b/src/drivers/intel/dptf/chip.h
index 0d2c25cf61..28403a83bd 100644
--- a/src/drivers/intel/dptf/chip.h
+++ b/src/drivers/intel/dptf/chip.h
@@ -17,6 +17,33 @@ struct drivers_intel_dptf_config {
struct dptf_fan_perf fan_perf[DPTF_MAX_FAN_PERF_STATES];
struct dptf_power_limits power_limits;
} controls;
+
+ /* Note that all values in this struct are optional */
+ struct {
+ struct {
+ /* True means _FSL is percentages, False means _FSL is Control values */
+ bool fine_grained_control;
+ /*
+ * Recommended minimum step size in percentage points to adjust fan
+ * speed when utilizing fine-grained control (1-9)
+ */
+ uint8_t step_size;
+ /*
+ * True means the platform will issue a Notify (0x80) to the fan device
+ * if a a low fan speed is detected
+ */
+ bool low_speed_notify;
+ } fan;
+ struct {
+ /*
+ * The amount of hysteresis implemented in circuitry or in the platform
+ * EC's firmware implementation (using the GTSH object)
+ */
+ uint8_t hysteresis;
+ /* Name applied to TSR (using the _STR object) */
+ const char *desc;
+ } tsr[DPTF_MAX_TSR];
+ } options;
};
#endif /* _DRIVERS_INTEL_DPTF_CHIP_H_ */
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));
}