struct of_range range;
struct of_range_parser parser;
struct resource res;
- int ret, i = 0;
+ int ret, count, i = 0;
np = of_find_node_by_path("/testcase-data/address-tests");
if (!np) {
"of_range_to_resource wrong resource start address on node %pOF res=%pR\n",
np, &res);
+ count = of_range_count(&parser);
+ unittest(count == 2,
+ "of_range_count wrong size on node %pOF count=%d\n",
+ np, count);
+
/*
* Get the "ranges" from the device tree
*/
for (; of_pci_range_parser_one(parser, range);)
#define for_each_of_range for_each_of_pci_range
+/*
+ * of_range_count - Get the number of "ranges" or "dma-ranges" entries
+ * @parser: Parser state initialized by of_range_parser_init()
+ *
+ * Returns the number of entries or 0 if none.
+ *
+ * Note that calling this within or after the for_each_of_range() iterator will
+ * be inaccurate giving the number of entries remaining.
+ */
+static inline int of_range_count(const struct of_range_parser *parser)
+{
+ if (!parser || !parser->node || !parser->range || parser->range == parser->end)
+ return 0;
+ return (parser->end - parser->range) / (parser->na + parser->pna + parser->ns);
+}
+
/* Translate a DMA address from device space to CPU space */
extern u64 of_translate_dma_address(struct device_node *dev,
const __be32 *in_addr);