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authorJean-Jacques Hiblot <jjhiblot@ti.com>2019-07-05 09:33:57 +0200
committerMarek Vasut <marex@denx.de>2019-07-05 14:19:41 +0200
commit07e33711fec4f1106f36805b5dc830da07c783c5 (patch)
treec7201a3711207f983079e3e43e1ca09935428359 /test/dm
parente445d46651de61fdfecf34cc2cd97d58ca6c5cf3 (diff)
dm: Add a No-op uclass
This uclass is intended for devices that do not need any features from the uclass, including binding children. This will typically be used by devices that are used to bind child devices but do not use dm_scan_fdt_dev() to do it. That is for example the case of several USB wrappers that have 2 child devices (1 for device and 1 for host) but bind only one at a any given time. Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com> Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'test/dm')
-rw-r--r--test/dm/Makefile1
-rw-r--r--test/dm/nop.c73
2 files changed, 74 insertions, 0 deletions
diff --git a/test/dm/Makefile b/test/dm/Makefile
index 49857c50929..aeb3aa0ca7c 100644
--- a/test/dm/Makefile
+++ b/test/dm/Makefile
@@ -3,6 +3,7 @@
# Copyright (c) 2013 Google, Inc
obj-$(CONFIG_UT_DM) += bus.o
+obj-$(CONFIG_UT_DM) += nop.o
obj-$(CONFIG_UT_DM) += test-driver.o
obj-$(CONFIG_UT_DM) += test-fdt.o
obj-$(CONFIG_UT_DM) += test-main.o
diff --git a/test/dm/nop.c b/test/dm/nop.c
new file mode 100644
index 00000000000..2df29f3d15b
--- /dev/null
+++ b/test/dm/nop.c
@@ -0,0 +1,73 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Test for the NOP uclass
+ *
+ * (C) Copyright 2019 - Texas Instruments Incorporated - http://www.ti.com/
+ * Jean-Jacques Hiblot <jjhiblot@ti.com>
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <dm/ofnode.h>
+#include <dm/lists.h>
+#include <dm/device.h>
+#include <dm/test.h>
+#include <misc.h>
+#include <test/ut.h>
+
+static int noptest_bind(struct udevice *parent)
+{
+ ofnode ofnode = dev_read_first_subnode(parent);
+
+ while (ofnode_valid(ofnode)) {
+ struct udevice *dev;
+ const char *bind_flag = ofnode_read_string(ofnode, "bind");
+
+ if (bind_flag && (strcmp(bind_flag, "True") == 0))
+ lists_bind_fdt(parent, ofnode, &dev, false);
+ ofnode = dev_read_next_subnode(ofnode);
+ }
+
+ return 0;
+}
+
+static const struct udevice_id noptest1_ids[] = {
+ {
+ .compatible = "sandbox,nop_sandbox1",
+ },
+ { }
+};
+
+U_BOOT_DRIVER(noptest_drv1) = {
+ .name = "noptest1_drv",
+ .of_match = noptest1_ids,
+ .id = UCLASS_NOP,
+ .bind = noptest_bind,
+};
+
+static const struct udevice_id noptest2_ids[] = {
+ {
+ .compatible = "sandbox,nop_sandbox2",
+ },
+ { }
+};
+
+U_BOOT_DRIVER(noptest_drv2) = {
+ .name = "noptest2_drv",
+ .of_match = noptest2_ids,
+ .id = UCLASS_NOP,
+};
+
+static int dm_test_nop(struct unit_test_state *uts)
+{
+ struct udevice *dev;
+
+ ut_assertok(uclass_get_device_by_name(UCLASS_NOP, "nop-test_0", &dev));
+ ut_assertok(uclass_get_device_by_name(UCLASS_NOP, "nop-test_1", &dev));
+ ut_asserteq(-ENODEV,
+ uclass_get_device_by_name(UCLASS_NOP, "nop-test_2", &dev));
+
+ return 0;
+}
+
+DM_TEST(dm_test_nop, DM_TESTF_FLAT_TREE | DM_TESTF_SCAN_FDT);