diff options
| author | Marek Vasut <[email protected]> | 2024-09-27 01:14:12 +0200 |
|---|---|---|
| committer | Tom Rini <[email protected]> | 2024-09-30 19:19:07 -0600 |
| commit | 51c4679d2f848e91b4a0cf867a426ffe5bb094b2 (patch) | |
| tree | add5b1076dd7b98b5923eee39d0f4c1385cc3ebc /drivers | |
| parent | 3a0b829efc35227b1079a444f00e0729502197ad (diff) | |
power: regulator: Trigger probe of regulators which are always-on or boot-on
In case a regulator DT node contains regulator-always-on or regulator-boot-on
property, make sure the regulator gets correctly configured by U-Boot on start
up. Unconditionally probe such regulator drivers. This is a preparatory patch
for introduction of .regulator_post_probe() which would trigger the regulator
configuration.
Parsing of regulator-always-on and regulator-boot-on DT property has been
moved to regulator_post_bind() as the information is required early, the
rest of the DT parsing has been kept in regulator_pre_probe() to avoid
slowing down the boot process.
Signed-off-by: Marek Vasut <[email protected]>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/power/regulator/regulator-uclass.c | 22 |
1 files changed, 15 insertions, 7 deletions
diff --git a/drivers/power/regulator/regulator-uclass.c b/drivers/power/regulator/regulator-uclass.c index 00922900292..1a970004540 100644 --- a/drivers/power/regulator/regulator-uclass.c +++ b/drivers/power/regulator/regulator-uclass.c @@ -439,6 +439,8 @@ static int regulator_post_bind(struct udevice *dev) const char *property = "regulator-name"; uc_pdata = dev_get_uclass_plat(dev); + uc_pdata->always_on = dev_read_bool(dev, "regulator-always-on"); + uc_pdata->boot_on = dev_read_bool(dev, "regulator-boot-on"); /* Regulator's mandatory constraint */ uc_pdata->name = dev_read_string(dev, property); @@ -450,13 +452,21 @@ static int regulator_post_bind(struct udevice *dev) return -EINVAL; } - if (regulator_name_is_unique(dev, uc_pdata->name)) - return 0; + if (!regulator_name_is_unique(dev, uc_pdata->name)) { + debug("'%s' of dev: '%s', has nonunique value: '%s\n", + property, dev->name, uc_pdata->name); + return -EINVAL; + } - debug("'%s' of dev: '%s', has nonunique value: '%s\n", - property, dev->name, uc_pdata->name); + /* + * In case the regulator has regulator-always-on or + * regulator-boot-on DT property, trigger probe() to + * configure its default state during startup. + */ + if (uc_pdata->always_on || uc_pdata->boot_on) + dev_or_flags(dev, DM_FLAG_PROBE_AFTER_BIND); - return -EINVAL; + return 0; } static int regulator_pre_probe(struct udevice *dev) @@ -479,8 +489,6 @@ static int regulator_pre_probe(struct udevice *dev) -ENODATA); uc_pdata->max_uA = dev_read_u32_default(dev, "regulator-max-microamp", -ENODATA); - uc_pdata->always_on = dev_read_bool(dev, "regulator-always-on"); - uc_pdata->boot_on = dev_read_bool(dev, "regulator-boot-on"); uc_pdata->ramp_delay = dev_read_u32_default(dev, "regulator-ramp-delay", 0); uc_pdata->force_off = dev_read_bool(dev, "regulator-force-boot-off"); |