samples: nrf9160: lwm2m_client: Align with upstream float changes

Align with upstream changes regarding float handling (see upstream
Zephyr commit b6f69a6 for reference).

Signed-off-by: Robert Lubos <[email protected]>

Author: rlubos

samples/nrf9160/lwm2m_client/README.rst

@@ -108,11 +108,6 @@ The following LwM2M objects are implemented in this sample:
       - Yes
 
 
-.. note::
-
-   The level resource on the Buzzer object does not work properly.
-   This is due to an error in Zephyr’s float handling, which will be fixed soon.
-
 .. _dtls_support:
 
 DTLS Support

samples/nrf9160/lwm2m_client/src/ipso/ipso_colour_sensor.c

@@ -51,7 +51,7 @@ static struct lwm2m_engine_obj_field fields[] = {
 	OBJ_FIELD_DATA(APPLICATION_TYPE_RID, RW_OPT, STRING),
 #ifdef CONFIG_LWM2M_IPSO_APP_COLOUR_SENSOR_VERSION_1_1
 	OBJ_FIELD_DATA(TIMESTAMP_RID, R_OPT, TIME),
-	OBJ_FIELD_DATA(FRACTIONAL_TIMESTAMP_RID, R_OPT, FLOAT32),
+	OBJ_FIELD_DATA(FRACTIONAL_TIMESTAMP_RID, R_OPT, FLOAT),
 	OBJ_FIELD_DATA(MEASUREMENT_QUALITY_INDICATOR_RID, R_OPT, U8),
 	OBJ_FIELD_DATA(MEASUREMENT_QUALITY_LEVEL_RID, R_OPT, U8)
 #endif

samples/nrf9160/lwm2m_client/src/lwm2m/lwm2m_buzzer.c

@@ -62,7 +62,7 @@ static int buzzer_intensity_cb(uint16_t obj_inst_id, uint16_t res_id, uint16_t r
 int lwm2m_init_buzzer(void)
 {
 	int ret;
-	float64_value_t start_intensity = { .val1 = INTENSITY_START_VAL, .val2 = 0 };
+	float32_value_t start_intensity = { .val1 = INTENSITY_START_VAL, .val2 = 0 };
 
 	ret = ui_buzzer_init();
 	if (ret) {
@@ -86,7 +86,7 @@ int lwm2m_init_buzzer(void)
 						  buzzer_intensity_cb);
 	lwm2m_engine_set_res_data(LWM2M_PATH(IPSO_OBJECT_BUZZER_ID, 0, APPLICATION_TYPE_RID),
 				  BUZZER_APP_TYPE, sizeof(BUZZER_APP_TYPE), LWM2M_RES_DATA_FLAG_RO);
-	lwm2m_engine_set_float64(LWM2M_PATH(IPSO_OBJECT_BUZZER_ID, 0, LEVEL_RID), &start_intensity);
+	lwm2m_engine_set_float32(LWM2M_PATH(IPSO_OBJECT_BUZZER_ID, 0, LEVEL_RID), &start_intensity);
 
 	if (IS_ENABLED(CONFIG_LWM2M_IPSO_APP_BUZZER_VERSION_1_1)) {
 		lwm2m_engine_set_res_data(LWM2M_PATH(IPSO_OBJECT_BUZZER_ID, 0, TIMESTAMP_RID),