[PATCH v3 04/13] test: dm: test-fdt: Add checks for uclass_get_device_by_endpoint()

[Miquel Raynal]

This is a new DM core helper. There is now a graph endpoint
representation in the sandbox test DTS, so we can just use it to verify
the helper proper behavior.

Suggested-by: Simon Glass <sjg at chromium.org>
Reviewed-by: Simon Glass <sjg at chromium.org>
Signed-off-by: Miquel Raynal <miquel.raynal at bootlin.com>
---
 configs/sandbox64_defconfig        |  1 +
 configs/sandbox_flattree_defconfig |  1 +
 test/dm/test-fdt.c                 | 20 +++++++++++++++++++-
 3 files changed, 21 insertions(+), 1 deletion(-)

diff --git a/configs/sandbox64_defconfig b/configs/sandbox64_defconfig
index 7960b2ef42e7ceee2a3646888ae159cdde9b59e0..359c12b88c904c995ca63bf3c17324c8eb02257a 100644
--- a/configs/sandbox64_defconfig
+++ b/configs/sandbox64_defconfig
@@ -256,6 +256,7 @@ CONFIG_CONSOLE_TRUETYPE=y
 CONFIG_CONSOLE_TRUETYPE_CANTORAONE=y
 CONFIG_I2C_EDID=y
 CONFIG_VIDEO_SANDBOX_SDL=y
+CONFIG_VIDEO_DSI_HOST_SANDBOX=y
 CONFIG_OSD=y
 CONFIG_SANDBOX_OSD=y
 CONFIG_BMP_16BPP=y
diff --git a/configs/sandbox_flattree_defconfig b/configs/sandbox_flattree_defconfig
index 563093dd8a426f98cdcfa342655bebb82dbefe86..f08dfef9056c4a2c86650f43298b3f506fae8d4c 100644
--- a/configs/sandbox_flattree_defconfig
+++ b/configs/sandbox_flattree_defconfig
@@ -220,6 +220,7 @@ CONFIG_CONSOLE_TRUETYPE=y
 CONFIG_CONSOLE_TRUETYPE_CANTORAONE=y
 CONFIG_I2C_EDID=y
 CONFIG_VIDEO_SANDBOX_SDL=y
+CONFIG_VIDEO_DSI_HOST_SANDBOX=y
 CONFIG_OSD=y
 CONFIG_SANDBOX_OSD=y
 CONFIG_BMP_16BPP=y
diff --git a/test/dm/test-fdt.c b/test/dm/test-fdt.c
index af8cd617108ac2421f7275948be000a7cbaebda0..e3c8c07066a00d55b2319e8f028b8ce9906efe28 100644
--- a/test/dm/test-fdt.c
+++ b/test/dm/test-fdt.c
@@ -792,7 +792,7 @@ DM_TEST(dm_test_fdt_disable_enable_by_path, UTF_SCAN_PDATA | UTF_SCAN_FDT);
 /* Test a few uclass phandle functions */
 static int dm_test_fdt_phandle(struct unit_test_state *uts)
 {
-	struct udevice *back, *dev, *dev2;
+	struct udevice *back, *dispc, *panel, *dev, *dev2;
 
 	ut_assertok(uclass_find_first_device(UCLASS_PANEL_BACKLIGHT, &back));
 	ut_assertnonnull(back);
@@ -807,6 +807,24 @@ static int dm_test_fdt_phandle(struct unit_test_state *uts)
 						 "power-supply", &dev2));
 	ut_asserteq_ptr(dev, dev2);
 
+	/* Test uclass_get_device_by_endpoint() */
+	ut_assertok(uclass_find_device_by_name(UCLASS_DSI_HOST, "dsi_host", &dispc));
+	ut_assertnonnull(dispc);
+	ut_asserteq(0, device_active(dispc));
+	ut_assertok(uclass_find_device_by_name(UCLASS_PANEL, "panel", &panel));
+	ut_assertnonnull(panel);
+	ut_asserteq(0, device_active(panel));
+
+	ut_asserteq(-ENODEV, uclass_get_device_by_endpoint(UCLASS_PANEL_BACKLIGHT, dispc, 1, &dev));
+	ut_asserteq(-EINVAL, uclass_get_device_by_endpoint(UCLASS_PANEL, dispc, 0, &dev));
+	ut_assertok(uclass_get_device_by_endpoint(UCLASS_PANEL, dispc, 1, &dev));
+	ut_asserteq_ptr(panel, dev);
+
+	ut_asserteq(-ENODEV, uclass_get_device_by_endpoint(UCLASS_PANEL_BACKLIGHT, panel, 0, &dev2));
+	ut_asserteq(-EINVAL, uclass_get_device_by_endpoint(UCLASS_DSI_HOST, panel, 1, &dev2));
+	ut_assertok(uclass_get_device_by_endpoint(UCLASS_DSI_HOST, panel, 0, &dev2));
+	ut_asserteq_ptr(dispc, dev2);
+
 	return 0;
 }
 DM_TEST(dm_test_fdt_phandle, UTF_SCAN_PDATA | UTF_SCAN_FDT);

-- 
2.47.0