diff options
| -rw-r--r-- | core/sensor.c | 2 | ||||
| -rw-r--r-- | hw/dts.c | 36 | ||||
| -rw-r--r-- | include/dts.h | 1 |
3 files changed, 39 insertions, 0 deletions
diff --git a/core/sensor.c b/core/sensor.c index 75238e0..7331fec 100644 --- a/core/sensor.c +++ b/core/sensor.c @@ -40,6 +40,8 @@ void sensor_init(void) { sensor_node = dt_new(opal_node, "sensors"); + dts_sensor_create_nodes(sensor_node); + /* Register OPAL interface */ opal_register(OPAL_SENSOR_READ, opal_sensor_read, 3); } @@ -19,6 +19,7 @@ #include <sensor.h> #include <dts.h> #include <skiboot.h> +#include <opal-api.h> /* Per core Digital Thermal Sensors */ #define EX_THERM_DTS_RESULT0 0x10050000 @@ -163,3 +164,38 @@ int64_t dts_sensor_read(uint32_t sensor_hndl, uint32_t *sensor_data) return 0; } + +bool dts_sensor_create_nodes(struct dt_node *sensors) +{ + uint8_t sensor_class = SENSOR_DTS_CORE_TEMP|SENSOR_DTS; + + struct proc_chip *chip; + char name[64]; + + /* build the device tree nodes : + * + * sensors/core-temp@pir + * + * The core is identified by its PIR, is stored in the resource + * number of the sensor handler. + */ + for_each_chip(chip) { + struct cpu_thread *c; + + for_each_available_core_in_chip(c, chip->id) { + struct dt_node *node; + uint32_t handler; + + snprintf(name, sizeof(name), "core-temp@%x", c->pir); + + handler = sensor_make_handler(sensor_class, + c->pir, SENSOR_DTS_ATTR_TEMP_MAX); + node = dt_new(sensors, name); + dt_add_property_string(node, "compatible", + "ibm,opal-sensor"); + dt_add_property_cells(node, "sensor-data", handler); + } + } + + return true; +} diff --git a/include/dts.h b/include/dts.h index ed083a9..b37919f 100644 --- a/include/dts.h +++ b/include/dts.h @@ -20,5 +20,6 @@ #include <stdint.h> extern int64_t dts_sensor_read(uint32_t sensor_hndl, uint32_t *sensor_data); +extern bool dts_sensor_create_nodes(struct dt_node *sensors); #endif /* __DTS_H */ |