Add some tests which check the behaviour of uclass_first_device() and uclass_next_device() when probing of a device fails.
Signed-off-by: Simon Glass sjg@chromium.org ---
Changes in v2: None
arch/sandbox/dts/test.dts | 19 +++++++++++++ include/dm/uclass-id.h | 1 + test/dm/test-fdt.c | 72 +++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 92 insertions(+)
diff --git a/arch/sandbox/dts/test.dts b/arch/sandbox/dts/test.dts index fff175d1b7..e5cdbab965 100644 --- a/arch/sandbox/dts/test.dts +++ b/arch/sandbox/dts/test.dts @@ -418,6 +418,25 @@ }; }; }; + + probing { + compatible = "simple-bus"; + test1 { + compatible = "denx,u-boot-probe-test"; + }; + + test2 { + compatible = "denx,u-boot-probe-test"; + }; + + test3 { + compatible = "denx,u-boot-probe-test"; + }; + + test4 { + compatible = "denx,u-boot-probe-test"; + }; + }; };
#include "sandbox_pmic.dtsi" diff --git a/include/dm/uclass-id.h b/include/dm/uclass-id.h index 1b635e4110..316304744e 100644 --- a/include/dm/uclass-id.h +++ b/include/dm/uclass-id.h @@ -18,6 +18,7 @@ enum uclass_id { UCLASS_TEST, UCLASS_TEST_FDT, UCLASS_TEST_BUS, + UCLASS_TEST_PROBE, UCLASS_SPI_EMUL, /* sandbox SPI device emulator */ UCLASS_I2C_EMUL, /* sandbox I2C device emulator */ UCLASS_PCI_EMUL, /* sandbox PCI device emulator */ diff --git a/test/dm/test-fdt.c b/test/dm/test-fdt.c index 3048a7b890..1770b86fed 100644 --- a/test/dm/test-fdt.c +++ b/test/dm/test-fdt.c @@ -12,6 +12,7 @@ #include <asm/io.h> #include <dm/test.h> #include <dm/root.h> +#include <dm/device-internal.h> #include <dm/uclass-internal.h> #include <dm/util.h> #include <test/ut.h> @@ -99,6 +100,36 @@ UCLASS_DRIVER(testfdt) = { .flags = DM_UC_FLAG_SEQ_ALIAS, };
+struct dm_testprobe_pdata { + int probe_err; +}; + +static int testprobe_drv_probe(struct udevice *dev) +{ + struct dm_testprobe_pdata *pdata = dev_get_platdata(dev); + + return pdata->probe_err; +} + +static const struct udevice_id testprobe_ids[] = { + { .compatible = "denx,u-boot-probe-test" }, + { } +}; + +U_BOOT_DRIVER(testprobe_drv) = { + .name = "testprobe_drv", + .of_match = testprobe_ids, + .id = UCLASS_TEST_PROBE, + .probe = testprobe_drv_probe, + .platdata_auto_alloc_size = sizeof(struct dm_testprobe_pdata), +}; + +UCLASS_DRIVER(testprobe) = { + .name = "testprobe", + .id = UCLASS_TEST_PROBE, + .flags = DM_UC_FLAG_SEQ_ALIAS, +}; + int dm_check_devices(struct unit_test_state *uts, int num_devices) { struct udevice *dev; @@ -266,3 +297,44 @@ static int dm_test_fdt_offset(struct unit_test_state *uts) return 0; } DM_TEST(dm_test_fdt_offset, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT); + +/** + * Test various error conditions with uclass_first_device() and + * uclass_next_device() + */ +static int dm_test_first_next_device(struct unit_test_state *uts) +{ + struct dm_testprobe_pdata *pdata; + struct udevice *dev, *parent = NULL; + int count; + int ret; + + /* There should be 4 devices */ + for (ret = uclass_first_device(UCLASS_TEST_PROBE, &dev), count = 0; + dev; + ret = uclass_next_device(&dev)) { + count++; + parent = dev_get_parent(dev); + } + ut_assertok(ret); + ut_asserteq(4, count); + + /* Remove them and try again, with an error on the second one */ + ut_assertok(uclass_get_device(UCLASS_TEST_PROBE, 1, &dev)); + pdata = dev_get_platdata(dev); + pdata->probe_err = -ENOMEM; + device_remove(parent, DM_REMOVE_NORMAL); + ut_assertok(uclass_first_device(UCLASS_TEST_PROBE, &dev)); + ut_asserteq(-ENOMEM, uclass_next_device(&dev)); + ut_asserteq_ptr(dev, NULL); + + /* Now an error on the first one */ + ut_assertok(uclass_get_device(UCLASS_TEST_PROBE, 0, &dev)); + pdata = dev_get_platdata(dev); + pdata->probe_err = -ENOENT; + device_remove(parent, DM_REMOVE_NORMAL); + ut_asserteq(-ENOENT, uclass_first_device(UCLASS_TEST_PROBE, &dev)); + + return 0; +} +DM_TEST(dm_test_first_next_device, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);