C++ (Cpp) dt_find_by_path Examples

Example #1

File: slca.c Project: 1312mukesh/skiboot

/*
 * SLCA structure contains System Attention Indicator location
 * code (FRU ID = SA). Add this information to device tree
 * (under '/ibm,opal/led').
 */
void slca_dt_add_sai_node(void)
{
	const struct slca_entry *s_entry;
	struct dt_node *led_node, *sai_node;

	s_entry = slca_get_sai_entry();
	if (!s_entry)
		return;

	/* Create /ibm,opal node, if its not created already */
	if (!opal_node)
		return;

	/* Crete LED parent node */
	led_node = dt_find_by_path(opal_node, DT_PROPERTY_LED_NODE);
	if (!led_node)
		return;

	if (s_entry->loc_code_len == 0 ||
	    s_entry->loc_code_len > LOC_CODE_SIZE)
		return;

	/* Create SAI node */
	sai_node = dt_new(led_node, s_entry->loc_code);
	assert(sai_node);

	dt_add_property_string(sai_node,
			       DT_PROPERTY_LED_TYPES, LED_TYPE_ATTENTION);
}

Example #2

File: fsp-codeupdate.c Project: gdhh/skiboot

/*
 * Get IPL side
 */
static void get_ipl_side(void)
{
	struct dt_node *iplp;
	const char *side = NULL;

	iplp = dt_find_by_path(dt_root, "ipl-params/ipl-params");
	if (iplp)
		side = dt_prop_get_def(iplp, "cec-ipl-side", NULL);
	printf("CUPD: IPL SIDE = %s\n", side);

	if (!side || !strcmp(side, "temp"))
		ipl_side = FW_IPL_SIDE_TEMP;
	else
		ipl_side = FW_IPL_SIDE_PERM;
}