test: dm: add ofnode_graph tests

Test suit for of_graph parsing helpers.

Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>

diff --git a/arch/sandbox/dts/test.dts b/arch/sandbox/dts/test.dts
index b8f3012..8029195 100644 (file)
--- a/arch/sandbox/dts/test.dts
+++ b/arch/sandbox/dts/test.dts
@@ -2048,6 +2048,61 @@
                        sandbox,err-step-size = <512>;
                };
        };
+
+       graph1 {
+               ports {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+
+                       port@0 {
+                               #address-cells = <1>;
+                               #size-cells = <0>;
+
+                               reg = <0>;
+
+                               endpoint@0 {
+                                       reg = <0>;
+                               };
+
+                               endpoint@1 {
+                                       reg = <1>;
+                               };
+                       };
+
+                       port@1 {
+                               reg = <1>;
+
+                               endpoint {
+                                       test-property-0;
+                               };
+                       };
+
+                       port@2 {
+                               #address-cells = <1>;
+                               #size-cells = <0>;
+
+                               reg = <2>;
+
+                               graph2_link: endpoint@0 {
+                                       reg = <0>;
+                                       test-property-1;
+                                       remote-endpoint = <&graph1_link>;
+                               };
+
+                               endpoint@1 {
+                                       reg = <1>;
+                               };
+                       };
+               };
+       };
+
+       graph2 {
+               port {
+                       graph1_link: endpoint {
+                               remote-endpoint = <&graph2_link>;
+                       };
+               };
+       };
 };
 
 #include "sandbox_pmic.dtsi"

diff --git a/test/dm/ofnode.c b/test/dm/ofnode.c
index cc8b444..0f60c2a 100644 (file)
--- a/test/dm/ofnode.c
+++ b/test/dm/ofnode.c
@@ -23,6 +23,7 @@
 #include <dm/device-internal.h>
 #include <dm/lists.h>
 #include <dm/of_extra.h>
+#include <dm/ofnode_graph.h>
 #include <dm/root.h>
 #include <dm/test.h>
 #include <dm/uclass-internal.h>
@@ -1651,3 +1652,56 @@ static int dm_test_bool(struct unit_test_state *uts)
        return 0;
 }
 DM_TEST(dm_test_bool, UTF_SCAN_FDT);
+
+/* test all helpers found in drivers/core/ofnode_graph.c */
+static int dm_test_ofnode_graph(struct unit_test_state *uts)
+{
+       /* 3 ports with 5 endpoints (2-1-2) */
+       ofnode graph1 = ofnode_path("/graph1");
+       /* 1 port with 1 endpoint */
+       ofnode graph2 = ofnode_path("/graph2");
+       ofnode node;
+       u32 id;
+
+       ut_asserteq(ofnode_graph_get_endpoint_count(graph1), 5);
+       ut_asserteq(ofnode_graph_get_endpoint_count(graph2), 1);
+
+       ut_asserteq(ofnode_graph_get_port_count(graph1), 3);
+       ut_asserteq(ofnode_graph_get_port_count(graph2), 1);
+
+       /* Request port with reg 2 */
+       node = ofnode_graph_get_port_by_id(graph1, 2);
+       ofnode_read_u32(node, "reg", &id);
+       ut_asserteq(id, 2);
+
+       /* Reqest parent from prev requested endpoint */
+       node = ofnode_graph_get_port_parent(node);
+       ut_asserteq_str(ofnode_get_name(node), "graph1");
+
+       /* Request endpoint under port 1 */
+       node = ofnode_graph_get_endpoint_by_regs(graph1, 1, -1);
+       ut_assert(ofnode_has_property(node, "test-property-0"));
+
+       /* Reqest remote endpoint from graph2 in graph1 */
+       node = ofnode_graph_get_endpoint_by_regs(graph2, -1, -1);
+       node = ofnode_graph_get_remote_endpoint(node);
+       ut_assert(ofnode_has_property(node, "test-property-1"));
+
+       /* Reqest remote parent from graph2 linked endpoint */
+       node = ofnode_graph_get_endpoint_by_regs(graph2, -1, -1);
+       node = ofnode_graph_get_remote_port_parent(node);
+       ut_asserteq_str(ofnode_get_name(node), "graph1");
+
+       /* Reqest remote port from graph2 linked endpoint */
+       node = ofnode_graph_get_endpoint_by_regs(graph2, -1, -1);
+       node = ofnode_graph_get_remote_port(node);
+       ofnode_read_u32(node, "reg", &id);
+       ut_asserteq(id, 2);
+
+       /* Reqest remote parent from graph2 linked endpoint */
+       node = ofnode_graph_get_remote_node(graph2, -1, -1);
+       ut_asserteq_str(ofnode_get_name(node), "graph1");
+
+       return 0;
+}
+DM_TEST(dm_test_ofnode_graph, UTF_SCAN_FDT);