Commit 6b1271de authored by Pantelis Antoniou's avatar Pantelis Antoniou Committed by Grant Likely
Browse files

of/unittest: Overlays with sub-devices tests 



Introduce selftests for overlays using sub-devices present
in children nodes.

Signed-off-by: default avatarPantelis Antoniou <pantelis.antoniou@konsulko.com>
Signed-off-by: default avatarGrant Likely <grant.likely@linaro.org>
parent 15204ab1

drivers/of/unittest-data/tests-overlay.dtsi

+55 −0
Original line number Diff line number Diff line
@@ -176,5 +176,60 @@ 
			};

		};



		overlay10 {

			fragment@0 {

				target-path = "/testcase-data/overlay-node/test-bus";

				__overlay__ {



					/* suppress DTC warning */

					#address-cells = <1>;

					#size-cells = <0>;



					test-selftest10 {

						compatible = "selftest";

						status = "okay";

						reg = <10>;



						#address-cells = <1>;

						#size-cells = <0>;



						test-selftest101 {

							compatible = "selftest";

							status = "okay";

							reg = <1>;

						};



					};

				};

			};

		};



		overlay11 {

			fragment@0 {

				target-path = "/testcase-data/overlay-node/test-bus";

				__overlay__ {



					/* suppress DTC warning */

					#address-cells = <1>;

					#size-cells = <0>;



					test-selftest11 {

						compatible = "selftest";

						status = "okay";

						reg = <11>;



						#address-cells = <1>;

						#size-cells = <0>;



						test-selftest111 {

							compatible = "selftest";

							status = "okay";

							reg = <1>;

						};



					};

				};

			};

		};

	};

};

drivers/of/unittest.c

+39 −0
Original line number Diff line number Diff line
@@ -978,6 +978,9 @@ static int selftest_probe(struct platform_device *pdev) 
	}



	dev_dbg(dev, "%s for node @%s\n", __func__, np->full_name);



	of_platform_populate(np, NULL, NULL, &pdev->dev);



	return 0;

}
@@ -1385,6 +1388,39 @@ static void of_selftest_overlay_8(void) 
	selftest(1, "overlay test %d passed\n", 8);

}



/* test insertion of a bus with parent devices */

static void of_selftest_overlay_10(void)

{

	int ret;

	char *child_path;



	/* device should disable */

	ret = of_selftest_apply_overlay_check(10, 10, 0, 1);

	if (selftest(ret == 0, "overlay test %d failed; overlay application\n", 10))

		return;



	child_path = kasprintf(GFP_KERNEL, "%s/test-selftest101",

			selftest_path(10));

	if (selftest(child_path, "overlay test %d failed; kasprintf\n", 10))

		return;



	ret = of_path_platform_device_exists(child_path);

	kfree(child_path);

	if (selftest(ret, "overlay test %d failed; no child device\n", 10))

		return;

}



/* test insertion of a bus with parent devices (and revert) */

static void of_selftest_overlay_11(void)

{

	int ret;



	/* device should disable */

	ret = of_selftest_apply_revert_overlay_check(11, 11, 0, 1);

	if (selftest(ret == 0, "overlay test %d failed; overlay application\n", 11))

		return;

}



static void __init of_selftest_overlay(void)

{

	struct device_node *bus_np = NULL;
@@ -1433,6 +1469,9 @@ static void __init of_selftest_overlay(void) 
	of_selftest_overlay_6();

	of_selftest_overlay_8();



	of_selftest_overlay_10();

	of_selftest_overlay_11();



out:

	of_node_put(bus_np);

}