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Diffstat (limited to 'drivers/phy/phy-common-props-test.c')
| -rw-r--r-- | drivers/phy/phy-common-props-test.c | 422 |
1 files changed, 422 insertions, 0 deletions
diff --git a/drivers/phy/phy-common-props-test.c b/drivers/phy/phy-common-props-test.c new file mode 100644 index 000000000000..e937ec8a4126 --- /dev/null +++ b/drivers/phy/phy-common-props-test.c @@ -0,0 +1,422 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * phy-common-props-test.c -- Unit tests for PHY common properties API + * + * Copyright 2025-2026 NXP + */ +#include <kunit/test.h> +#include <linux/property.h> +#include <linux/phy/phy-common-props.h> +#include <dt-bindings/phy/phy.h> + +/* Test: rx-polarity property is missing */ +static void phy_test_rx_polarity_is_missing(struct kunit *test) +{ + static const struct property_entry entries[] = { + {} + }; + struct fwnode_handle *node; + unsigned int val; + int ret; + + node = fwnode_create_software_node(entries, NULL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, node); + + ret = phy_get_manual_rx_polarity(node, "sgmii", &val); + KUNIT_EXPECT_EQ(test, ret, 0); + KUNIT_EXPECT_EQ(test, val, PHY_POL_NORMAL); + + fwnode_remove_software_node(node); +} + +/* Test: rx-polarity has more values than rx-polarity-names */ +static void phy_test_rx_polarity_more_values_than_names(struct kunit *test) +{ + static const u32 rx_pol[] = { PHY_POL_NORMAL, PHY_POL_INVERT, PHY_POL_NORMAL }; + static const char * const rx_pol_names[] = { "sgmii", "2500base-x" }; + static const struct property_entry entries[] = { + PROPERTY_ENTRY_U32_ARRAY("rx-polarity", rx_pol), + PROPERTY_ENTRY_STRING_ARRAY("rx-polarity-names", rx_pol_names), + {} + }; + struct fwnode_handle *node; + unsigned int val; + int ret; + + node = fwnode_create_software_node(entries, NULL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, node); + + ret = phy_get_manual_rx_polarity(node, "sgmii", &val); + KUNIT_EXPECT_EQ(test, ret, -EINVAL); + + fwnode_remove_software_node(node); +} + +/* Test: rx-polarity has 1 value and rx-polarity-names does not exist */ +static void phy_test_rx_polarity_single_value_no_names(struct kunit *test) +{ + static const u32 rx_pol[] = { PHY_POL_INVERT }; + static const struct property_entry entries[] = { + PROPERTY_ENTRY_U32_ARRAY("rx-polarity", rx_pol), + {} + }; + struct fwnode_handle *node; + unsigned int val; + int ret; + + node = fwnode_create_software_node(entries, NULL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, node); + + ret = phy_get_manual_rx_polarity(node, "sgmii", &val); + KUNIT_EXPECT_EQ(test, ret, 0); + KUNIT_EXPECT_EQ(test, val, PHY_POL_INVERT); + + fwnode_remove_software_node(node); +} + +/* Test: rx-polarity-names has more values than rx-polarity */ +static void phy_test_rx_polarity_more_names_than_values(struct kunit *test) +{ + static const u32 rx_pol[] = { PHY_POL_NORMAL, PHY_POL_INVERT }; + static const char * const rx_pol_names[] = { "sgmii", "2500base-x", "1000base-x" }; + static const struct property_entry entries[] = { + PROPERTY_ENTRY_U32_ARRAY("rx-polarity", rx_pol), + PROPERTY_ENTRY_STRING_ARRAY("rx-polarity-names", rx_pol_names), + {} + }; + struct fwnode_handle *node; + unsigned int val; + int ret; + + node = fwnode_create_software_node(entries, NULL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, node); + + ret = phy_get_manual_rx_polarity(node, "sgmii", &val); + KUNIT_EXPECT_EQ(test, ret, -EINVAL); + + fwnode_remove_software_node(node); +} + +/* Test: rx-polarity and rx-polarity-names have same length, find the name */ +static void phy_test_rx_polarity_find_by_name(struct kunit *test) +{ + static const u32 rx_pol[] = { PHY_POL_NORMAL, PHY_POL_INVERT, PHY_POL_AUTO }; + static const char * const rx_pol_names[] = { "sgmii", "2500base-x", "usb-ss" }; + static const struct property_entry entries[] = { + PROPERTY_ENTRY_U32_ARRAY("rx-polarity", rx_pol), + PROPERTY_ENTRY_STRING_ARRAY("rx-polarity-names", rx_pol_names), + {} + }; + struct fwnode_handle *node; + unsigned int val; + int ret; + + node = fwnode_create_software_node(entries, NULL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, node); + + ret = phy_get_manual_rx_polarity(node, "sgmii", &val); + KUNIT_EXPECT_EQ(test, ret, 0); + KUNIT_EXPECT_EQ(test, val, PHY_POL_NORMAL); + + ret = phy_get_manual_rx_polarity(node, "2500base-x", &val); + KUNIT_EXPECT_EQ(test, ret, 0); + KUNIT_EXPECT_EQ(test, val, PHY_POL_INVERT); + + ret = phy_get_rx_polarity(node, "usb-ss", BIT(PHY_POL_AUTO), + PHY_POL_AUTO, &val); + KUNIT_EXPECT_EQ(test, ret, 0); + KUNIT_EXPECT_EQ(test, val, PHY_POL_AUTO); + + fwnode_remove_software_node(node); +} + +/* Test: same length, name not found, no "default" - error */ +static void phy_test_rx_polarity_name_not_found_no_default(struct kunit *test) +{ + static const u32 rx_pol[] = { PHY_POL_NORMAL, PHY_POL_INVERT }; + static const char * const rx_pol_names[] = { "2500base-x", "1000base-x" }; + static const struct property_entry entries[] = { + PROPERTY_ENTRY_U32_ARRAY("rx-polarity", rx_pol), + PROPERTY_ENTRY_STRING_ARRAY("rx-polarity-names", rx_pol_names), + {} + }; + struct fwnode_handle *node; + unsigned int val; + int ret; + + node = fwnode_create_software_node(entries, NULL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, node); + + ret = phy_get_manual_rx_polarity(node, "sgmii", &val); + KUNIT_EXPECT_EQ(test, ret, -EINVAL); + + fwnode_remove_software_node(node); +} + +/* Test: same length, name not found, but "default" exists */ +static void phy_test_rx_polarity_name_not_found_with_default(struct kunit *test) +{ + static const u32 rx_pol[] = { PHY_POL_NORMAL, PHY_POL_INVERT }; + static const char * const rx_pol_names[] = { "2500base-x", "default" }; + static const struct property_entry entries[] = { + PROPERTY_ENTRY_U32_ARRAY("rx-polarity", rx_pol), + PROPERTY_ENTRY_STRING_ARRAY("rx-polarity-names", rx_pol_names), + {} + }; + struct fwnode_handle *node; + unsigned int val; + int ret; + + node = fwnode_create_software_node(entries, NULL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, node); + + ret = phy_get_manual_rx_polarity(node, "sgmii", &val); + KUNIT_EXPECT_EQ(test, ret, 0); + KUNIT_EXPECT_EQ(test, val, PHY_POL_INVERT); + + fwnode_remove_software_node(node); +} + +/* Test: polarity found but value is unsupported */ +static void phy_test_rx_polarity_unsupported_value(struct kunit *test) +{ + static const u32 rx_pol[] = { PHY_POL_AUTO }; + static const char * const rx_pol_names[] = { "sgmii" }; + static const struct property_entry entries[] = { + PROPERTY_ENTRY_U32_ARRAY("rx-polarity", rx_pol), + PROPERTY_ENTRY_STRING_ARRAY("rx-polarity-names", rx_pol_names), + {} + }; + struct fwnode_handle *node; + unsigned int val; + int ret; + + node = fwnode_create_software_node(entries, NULL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, node); + + ret = phy_get_manual_rx_polarity(node, "sgmii", &val); + KUNIT_EXPECT_EQ(test, ret, -EOPNOTSUPP); + + fwnode_remove_software_node(node); +} + +/* Test: tx-polarity property is missing */ +static void phy_test_tx_polarity_is_missing(struct kunit *test) +{ + static const struct property_entry entries[] = { + {} + }; + struct fwnode_handle *node; + unsigned int val; + int ret; + + node = fwnode_create_software_node(entries, NULL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, node); + + ret = phy_get_manual_tx_polarity(node, "sgmii", &val); + KUNIT_EXPECT_EQ(test, ret, 0); + KUNIT_EXPECT_EQ(test, val, PHY_POL_NORMAL); + + fwnode_remove_software_node(node); +} + +/* Test: tx-polarity has more values than tx-polarity-names */ +static void phy_test_tx_polarity_more_values_than_names(struct kunit *test) +{ + static const u32 tx_pol[] = { PHY_POL_NORMAL, PHY_POL_INVERT, PHY_POL_NORMAL }; + static const char * const tx_pol_names[] = { "sgmii", "2500base-x" }; + static const struct property_entry entries[] = { + PROPERTY_ENTRY_U32_ARRAY("tx-polarity", tx_pol), + PROPERTY_ENTRY_STRING_ARRAY("tx-polarity-names", tx_pol_names), + {} + }; + struct fwnode_handle *node; + unsigned int val; + int ret; + + node = fwnode_create_software_node(entries, NULL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, node); + + ret = phy_get_manual_tx_polarity(node, "sgmii", &val); + KUNIT_EXPECT_EQ(test, ret, -EINVAL); + + fwnode_remove_software_node(node); +} + +/* Test: tx-polarity has 1 value and tx-polarity-names does not exist */ +static void phy_test_tx_polarity_single_value_no_names(struct kunit *test) +{ + static const u32 tx_pol[] = { PHY_POL_INVERT }; + static const struct property_entry entries[] = { + PROPERTY_ENTRY_U32_ARRAY("tx-polarity", tx_pol), + {} + }; + struct fwnode_handle *node; + unsigned int val; + int ret; + + node = fwnode_create_software_node(entries, NULL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, node); + + ret = phy_get_manual_tx_polarity(node, "sgmii", &val); + KUNIT_EXPECT_EQ(test, ret, 0); + KUNIT_EXPECT_EQ(test, val, PHY_POL_INVERT); + + fwnode_remove_software_node(node); +} + +/* Test: tx-polarity-names has more values than tx-polarity */ +static void phy_test_tx_polarity_more_names_than_values(struct kunit *test) +{ + static const u32 tx_pol[] = { PHY_POL_NORMAL, PHY_POL_INVERT }; + static const char * const tx_pol_names[] = { "sgmii", "2500base-x", "1000base-x" }; + static const struct property_entry entries[] = { + PROPERTY_ENTRY_U32_ARRAY("tx-polarity", tx_pol), + PROPERTY_ENTRY_STRING_ARRAY("tx-polarity-names", tx_pol_names), + {} + }; + struct fwnode_handle *node; + unsigned int val; + int ret; + + node = fwnode_create_software_node(entries, NULL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, node); + + ret = phy_get_manual_tx_polarity(node, "sgmii", &val); + KUNIT_EXPECT_EQ(test, ret, -EINVAL); + + fwnode_remove_software_node(node); +} + +/* Test: tx-polarity and tx-polarity-names have same length, find the name */ +static void phy_test_tx_polarity_find_by_name(struct kunit *test) +{ + static const u32 tx_pol[] = { PHY_POL_NORMAL, PHY_POL_INVERT, PHY_POL_NORMAL }; + static const char * const tx_pol_names[] = { "sgmii", "2500base-x", "1000base-x" }; + static const struct property_entry entries[] = { + PROPERTY_ENTRY_U32_ARRAY("tx-polarity", tx_pol), + PROPERTY_ENTRY_STRING_ARRAY("tx-polarity-names", tx_pol_names), + {} + }; + struct fwnode_handle *node; + unsigned int val; + int ret; + + node = fwnode_create_software_node(entries, NULL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, node); + + ret = phy_get_manual_tx_polarity(node, "sgmii", &val); + KUNIT_EXPECT_EQ(test, ret, 0); + KUNIT_EXPECT_EQ(test, val, PHY_POL_NORMAL); + + ret = phy_get_manual_tx_polarity(node, "2500base-x", &val); + KUNIT_EXPECT_EQ(test, ret, 0); + KUNIT_EXPECT_EQ(test, val, PHY_POL_INVERT); + + ret = phy_get_manual_tx_polarity(node, "1000base-x", &val); + KUNIT_EXPECT_EQ(test, ret, 0); + KUNIT_EXPECT_EQ(test, val, PHY_POL_NORMAL); + + fwnode_remove_software_node(node); +} + +/* Test: same length, name not found, no "default" - error */ +static void phy_test_tx_polarity_name_not_found_no_default(struct kunit *test) +{ + static const u32 tx_pol[] = { PHY_POL_NORMAL, PHY_POL_INVERT }; + static const char * const tx_pol_names[] = { "2500base-x", "1000base-x" }; + static const struct property_entry entries[] = { + PROPERTY_ENTRY_U32_ARRAY("tx-polarity", tx_pol), + PROPERTY_ENTRY_STRING_ARRAY("tx-polarity-names", tx_pol_names), + {} + }; + struct fwnode_handle *node; + unsigned int val; + int ret; + + node = fwnode_create_software_node(entries, NULL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, node); + + ret = phy_get_manual_tx_polarity(node, "sgmii", &val); + KUNIT_EXPECT_EQ(test, ret, -EINVAL); + + fwnode_remove_software_node(node); +} + +/* Test: same length, name not found, but "default" exists */ +static void phy_test_tx_polarity_name_not_found_with_default(struct kunit *test) +{ + static const u32 tx_pol[] = { PHY_POL_NORMAL, PHY_POL_INVERT }; + static const char * const tx_pol_names[] = { "2500base-x", "default" }; + static const struct property_entry entries[] = { + PROPERTY_ENTRY_U32_ARRAY("tx-polarity", tx_pol), + PROPERTY_ENTRY_STRING_ARRAY("tx-polarity-names", tx_pol_names), + {} + }; + struct fwnode_handle *node; + unsigned int val; + int ret; + + node = fwnode_create_software_node(entries, NULL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, node); + + ret = phy_get_manual_tx_polarity(node, "sgmii", &val); + KUNIT_EXPECT_EQ(test, ret, 0); + KUNIT_EXPECT_EQ(test, val, PHY_POL_INVERT); + + fwnode_remove_software_node(node); +} + +/* Test: polarity found but value is unsupported (AUTO for TX) */ +static void phy_test_tx_polarity_unsupported_value(struct kunit *test) +{ + static const u32 tx_pol[] = { PHY_POL_AUTO }; + static const char * const tx_pol_names[] = { "sgmii" }; + static const struct property_entry entries[] = { + PROPERTY_ENTRY_U32_ARRAY("tx-polarity", tx_pol), + PROPERTY_ENTRY_STRING_ARRAY("tx-polarity-names", tx_pol_names), + {} + }; + struct fwnode_handle *node; + unsigned int val; + int ret; + + node = fwnode_create_software_node(entries, NULL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, node); + + ret = phy_get_manual_tx_polarity(node, "sgmii", &val); + KUNIT_EXPECT_EQ(test, ret, -EOPNOTSUPP); + + fwnode_remove_software_node(node); +} + +static struct kunit_case phy_common_props_test_cases[] = { + KUNIT_CASE(phy_test_rx_polarity_is_missing), + KUNIT_CASE(phy_test_rx_polarity_more_values_than_names), + KUNIT_CASE(phy_test_rx_polarity_single_value_no_names), + KUNIT_CASE(phy_test_rx_polarity_more_names_than_values), + KUNIT_CASE(phy_test_rx_polarity_find_by_name), + KUNIT_CASE(phy_test_rx_polarity_name_not_found_no_default), + KUNIT_CASE(phy_test_rx_polarity_name_not_found_with_default), + KUNIT_CASE(phy_test_rx_polarity_unsupported_value), + KUNIT_CASE(phy_test_tx_polarity_is_missing), + KUNIT_CASE(phy_test_tx_polarity_more_values_than_names), + KUNIT_CASE(phy_test_tx_polarity_single_value_no_names), + KUNIT_CASE(phy_test_tx_polarity_more_names_than_values), + KUNIT_CASE(phy_test_tx_polarity_find_by_name), + KUNIT_CASE(phy_test_tx_polarity_name_not_found_no_default), + KUNIT_CASE(phy_test_tx_polarity_name_not_found_with_default), + KUNIT_CASE(phy_test_tx_polarity_unsupported_value), + {} +}; + +static struct kunit_suite phy_common_props_test_suite = { + .name = "phy-common-props", + .test_cases = phy_common_props_test_cases, +}; + +kunit_test_suite(phy_common_props_test_suite); + +MODULE_DESCRIPTION("Test module for PHY common properties API"); +MODULE_AUTHOR("Vladimir Oltean <vladimir.oltean@nxp.com>"); +MODULE_LICENSE("GPL"); |