Add DM test coverage for the new reset_reset() and reset_reset_bulk() API functions. The tests exercise the assert + deassert fallback path since the sandbox reset driver does not implement the rst_reset op.
Signed-off-by: Michal Simek <[email protected]> --- Changes in v2: - Add reset_count field to track reset pulse operations - Implement sandbox_reset_reset() for rst_reset op - Add sandbox_reset_get_count() to query reset pulse count - Clear reset_count when reset is requested - Update tests to verify reset pulse actually happened arch/sandbox/include/asm/reset.h | 3 ++ drivers/reset/sandbox-reset-test.c | 14 +++++++ drivers/reset/sandbox-reset.c | 31 ++++++++++++++ test/dm/reset.c | 67 ++++++++++++++++++++++++++++++ 4 files changed, 115 insertions(+) diff --git a/arch/sandbox/include/asm/reset.h b/arch/sandbox/include/asm/reset.h index f0709b41c09f..2890e0dc09bd 100644 --- a/arch/sandbox/include/asm/reset.h +++ b/arch/sandbox/include/asm/reset.h @@ -10,6 +10,7 @@ struct udevice; int sandbox_reset_query(struct udevice *dev, unsigned long id); int sandbox_reset_is_requested(struct udevice *dev, unsigned long id); +int sandbox_reset_get_count(struct udevice *dev, unsigned long id); int sandbox_reset_test_get(struct udevice *dev); int sandbox_reset_test_get_devm(struct udevice *dev); @@ -19,6 +20,8 @@ int sandbox_reset_test_assert(struct udevice *dev); int sandbox_reset_test_assert_bulk(struct udevice *dev); int sandbox_reset_test_deassert(struct udevice *dev); int sandbox_reset_test_deassert_bulk(struct udevice *dev); +int sandbox_reset_test_reset(struct udevice *dev); +int sandbox_reset_test_reset_bulk(struct udevice *dev); int sandbox_reset_test_free(struct udevice *dev); int sandbox_reset_test_release_bulk(struct udevice *dev); diff --git a/drivers/reset/sandbox-reset-test.c b/drivers/reset/sandbox-reset-test.c index dfacb764bc77..64c205596c5e 100644 --- a/drivers/reset/sandbox-reset-test.c +++ b/drivers/reset/sandbox-reset-test.c @@ -96,6 +96,20 @@ int sandbox_reset_test_deassert_bulk(struct udevice *dev) return reset_deassert_bulk(sbrt->bulkp); } +int sandbox_reset_test_reset(struct udevice *dev) +{ + struct sandbox_reset_test *sbrt = dev_get_priv(dev); + + return reset_reset(sbrt->ctlp, 0); +} + +int sandbox_reset_test_reset_bulk(struct udevice *dev) +{ + struct sandbox_reset_test *sbrt = dev_get_priv(dev); + + return reset_reset_bulk(sbrt->bulkp, 0); +} + int sandbox_reset_test_free(struct udevice *dev) { struct sandbox_reset_test *sbrt = dev_get_priv(dev); diff --git a/drivers/reset/sandbox-reset.c b/drivers/reset/sandbox-reset.c index adf9eedcba6d..71fba5b15da0 100644 --- a/drivers/reset/sandbox-reset.c +++ b/drivers/reset/sandbox-reset.c @@ -9,12 +9,14 @@ #include <reset-uclass.h> #include <asm/io.h> #include <asm/reset.h> +#include <linux/delay.h> #define SANDBOX_RESET_SIGNALS 101 struct sandbox_reset_signal { bool asserted; bool requested; + int reset_count; }; struct sandbox_reset { @@ -31,6 +33,7 @@ static int sandbox_reset_request(struct reset_ctl *reset_ctl) return -EINVAL; sbr->signals[reset_ctl->id].requested = true; + sbr->signals[reset_ctl->id].reset_count = 0; return 0; } @@ -66,6 +69,21 @@ static int sandbox_reset_deassert(struct reset_ctl *reset_ctl) return 0; } +static int sandbox_reset_reset(struct reset_ctl *reset_ctl, ulong delay_us) +{ + struct sandbox_reset *sbr = dev_get_priv(reset_ctl->dev); + + debug("%s(reset_ctl=%p, delay_us=%lu)\n", __func__, reset_ctl, + delay_us); + + sbr->signals[reset_ctl->id].asserted = true; + udelay(delay_us); + sbr->signals[reset_ctl->id].asserted = false; + sbr->signals[reset_ctl->id].reset_count++; + + return 0; +} + static int sandbox_reset_bind(struct udevice *dev) { debug("%s(dev=%p)\n", __func__, dev); @@ -90,6 +108,7 @@ struct reset_ops sandbox_reset_reset_ops = { .rfree = sandbox_reset_free, .rst_assert = sandbox_reset_assert, .rst_deassert = sandbox_reset_deassert, + .rst_reset = sandbox_reset_reset, }; U_BOOT_DRIVER(sandbox_reset) = { @@ -125,3 +144,15 @@ int sandbox_reset_is_requested(struct udevice *dev, unsigned long id) return sbr->signals[id].requested; } + +int sandbox_reset_get_count(struct udevice *dev, unsigned long id) +{ + struct sandbox_reset *sbr = dev_get_priv(dev); + + debug("%s(dev=%p, id=%ld)\n", __func__, dev, id); + + if (id >= SANDBOX_RESET_SIGNALS) + return -EINVAL; + + return sbr->signals[id].reset_count; +} diff --git a/test/dm/reset.c b/test/dm/reset.c index dceb6a1dad38..043d7cb7e0fc 100644 --- a/test/dm/reset.c +++ b/test/dm/reset.c @@ -120,6 +120,73 @@ static int dm_test_reset_devm(struct unit_test_state *uts) } DM_TEST(dm_test_reset_devm, UTF_SCAN_FDT); +static int dm_test_reset_reset(struct unit_test_state *uts) +{ + struct udevice *dev_reset; + struct udevice *dev_test; + + ut_assertok(uclass_get_device_by_name(UCLASS_RESET, "reset-ctl", + &dev_reset)); + ut_asserteq(0, sandbox_reset_query(dev_reset, TEST_RESET_ID)); + + ut_assertok(uclass_get_device_by_name(UCLASS_MISC, "reset-ctl-test", + &dev_test)); + ut_assertok(sandbox_reset_test_get(dev_test)); + + /* Verify reset_count starts at 0 */ + ut_asserteq(0, sandbox_reset_get_count(dev_reset, TEST_RESET_ID)); + + ut_assertok(sandbox_reset_test_assert(dev_test)); + ut_asserteq(1, sandbox_reset_query(dev_reset, TEST_RESET_ID)); + + ut_assertok(sandbox_reset_test_reset(dev_test)); + + /* Verify reset was pulsed (count incremented) */ + ut_asserteq(1, sandbox_reset_get_count(dev_reset, TEST_RESET_ID)); + ut_asserteq(0, sandbox_reset_query(dev_reset, TEST_RESET_ID)); + + ut_assertok(sandbox_reset_test_free(dev_test)); + + return 0; +} +DM_TEST(dm_test_reset_reset, UTF_SCAN_FDT); + +static int dm_test_reset_reset_bulk(struct unit_test_state *uts) +{ + struct udevice *dev_reset; + struct udevice *dev_test; + + ut_assertok(uclass_get_device_by_name(UCLASS_RESET, "reset-ctl", + &dev_reset)); + ut_asserteq(0, sandbox_reset_query(dev_reset, TEST_RESET_ID)); + ut_asserteq(0, sandbox_reset_query(dev_reset, OTHER_RESET_ID)); + + ut_assertok(uclass_get_device_by_name(UCLASS_MISC, "reset-ctl-test", + &dev_test)); + ut_assertok(sandbox_reset_test_get_bulk(dev_test)); + + /* Verify reset_count starts at 0 */ + ut_asserteq(0, sandbox_reset_get_count(dev_reset, TEST_RESET_ID)); + ut_asserteq(0, sandbox_reset_get_count(dev_reset, OTHER_RESET_ID)); + + ut_assertok(sandbox_reset_test_assert_bulk(dev_test)); + ut_asserteq(1, sandbox_reset_query(dev_reset, TEST_RESET_ID)); + ut_asserteq(1, sandbox_reset_query(dev_reset, OTHER_RESET_ID)); + + ut_assertok(sandbox_reset_test_reset_bulk(dev_test)); + + /* Verify resets were pulsed (counts incremented) */ + ut_asserteq(1, sandbox_reset_get_count(dev_reset, TEST_RESET_ID)); + ut_asserteq(1, sandbox_reset_get_count(dev_reset, OTHER_RESET_ID)); + ut_asserteq(0, sandbox_reset_query(dev_reset, TEST_RESET_ID)); + ut_asserteq(0, sandbox_reset_query(dev_reset, OTHER_RESET_ID)); + + ut_assertok(sandbox_reset_test_release_bulk(dev_test)); + + return 0; +} +DM_TEST(dm_test_reset_reset_bulk, UTF_SCAN_FDT); + static int dm_test_reset_bulk(struct unit_test_state *uts) { struct udevice *dev_reset; -- 2.43.0
