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regulator: pca9450: Correct default t_off_deb for PCA9451A/PCA9452

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The PMIC PCA9451A and PCA9452 have a default power-off debounce time of
2ms according to their datasheet, while PCA9450A and PCA9450BC use 120us.

Add default_t_off_deb field to struct pca9450 to support per-variant
default configuration when the device tree property is not specified.

Datasheet reference links:
- PCA9451A Rev.2.1: https://www.nxp.com/docs/en/data-sheet/PCA9451A.pdf
- PCA9452 Rev.1.0: https://www.nxp.com/docs/en/data-sheet/PCA9452.pdf

Signed-off-by: Joy Zou <joy.zou@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Link: https://patch.msgid.link/20260618-b4-regulator-opt-v1-1-c43b1f62aaf6@oss.nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Joy Zou 2026-06-18 10:03:05 +08:00 committed by Mark Brown
parent fd964ee0ac
commit fbef4191b4
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GPG Key ID: 24D68B725D5487D0
1 changed files with 6 additions and 1 deletions
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7
drivers/regulator/pca9450-regulator.c
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@ -44,6 +44,7 @@ struct pca9450 {
unsigned int rcnt;
int irq;
bool sd_vsel_fixed_low;
int default_t_off_deb;
};
static const struct regmap_range pca9450_status_range = {
@ -1209,7 +1210,7 @@ static int pca9450_of_init(struct pca9450 *pca9450)
ret = of_property_read_u32(i2c->dev.of_node, "nxp,pmic-on-req-off-debounce-us", &val);
if (ret == -EINVAL)
t_off_deb = T_OFF_DEB_120US;
t_off_deb = pca9450->default_t_off_deb;
else if (ret)
return ret;
else {
@ -1304,21 +1305,25 @@ static int pca9450_i2c_probe(struct i2c_client *i2c)
case PCA9450_TYPE_PCA9450A:
regulator_desc = pca9450a_regulators;
pca9450->rcnt = ARRAY_SIZE(pca9450a_regulators);
pca9450->default_t_off_deb = T_OFF_DEB_120US;
type_name = "pca9450a";
break;
case PCA9450_TYPE_PCA9450BC:
regulator_desc = pca9450bc_regulators;
pca9450->rcnt = ARRAY_SIZE(pca9450bc_regulators);
pca9450->default_t_off_deb = T_OFF_DEB_120US;
type_name = "pca9450bc";
break;
case PCA9450_TYPE_PCA9451A:
regulator_desc = pca9451a_regulators;
pca9450->rcnt = ARRAY_SIZE(pca9451a_regulators);
pca9450->default_t_off_deb = T_OFF_DEB_2MS;
type_name = "pca9451a";
break;
case PCA9450_TYPE_PCA9452:
regulator_desc = pca9451a_regulators;
pca9450->rcnt = ARRAY_SIZE(pca9451a_regulators);
pca9450->default_t_off_deb = T_OFF_DEB_2MS;
type_name = "pca9452";
break;
default: