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phy: test: Implement sandbox PHY .set_mode and DM test

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Implement trivial extension to the sandbox PHY, which makes it pretend
to support selecting USB Host mode and nothing else. Any other mode is
rejected with -EINVAL. Any submode except for default submode 0 is
rejected with -EOPNOTSUPP . The implementation behaves in this trivial
way to permit easy unit testing using test which is also added in this
commit.

To run the test, use e.g. sandbox64_defconfig and run U-Boot as follows:
$ ./u-boot -Tc 'ut dm phy_setup'

Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
This commit is contained in:
Marek Vasut 2024-09-08 23:09:05 +02:00 • committed by Marek Vasut
parent a1f841a33c
commit e72e683e36
2 changed files with 20 additions and 0 deletions
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13
drivers/phy/sandbox-phy.c
View file

@ -72,6 +72,18 @@ static int sandbox_phy_exit(struct phy *phy)
return 0;
}
static int
sandbox_phy_set_mode(struct phy *phy, enum phy_mode mode, int submode)
{
if (submode)
return -EOPNOTSUPP;
if (mode != PHY_MODE_USB_HOST)
return -EINVAL;
return 0;
}
static int sandbox_phy_bind(struct udevice *dev)
{
if (dev_get_driver_data(dev) != DRIVER_DATA)
@ -96,6 +108,7 @@ static struct phy_ops sandbox_phy_ops = {
.power_off = sandbox_phy_power_off,
.init = sandbox_phy_init,
.exit = sandbox_phy_exit,
.set_mode = sandbox_phy_set_mode,
};
static const struct udevice_id sandbox_phy_ids[] = {

7
test/dm/phy.c
View file

@ -246,6 +246,13 @@ static int dm_test_phy_setup(struct unit_test_state *uts)
ut_assertok(generic_setup_phy(parent, &phy, 0, PHY_MODE_USB_HOST, 0));
ut_assertok(generic_shutdown_phy(&phy));
/* set_mode as USB Host passes, anything else is not supported */
ut_assertok(generic_setup_phy(parent, &phy, 0, PHY_MODE_USB_HOST, 0));
ut_assertok(generic_phy_set_mode(&phy, PHY_MODE_USB_HOST, 0));
ut_asserteq(-EOPNOTSUPP, generic_phy_set_mode(&phy, PHY_MODE_USB_HOST, 1));
ut_asserteq(-EINVAL, generic_phy_set_mode(&phy, PHY_MODE_USB_DEVICE, 0));
ut_assertok(generic_shutdown_phy(&phy));
/* power_off fail with -EIO */
ut_assertok(generic_setup_phy(parent, &phy, 1, PHY_MODE_USB_HOST, 0));
ut_asserteq(-EIO, generic_shutdown_phy(&phy));