@@ -51,6 +51,17 @@
#define AXP20X_PWR_OUT_DCDC2_MASK BIT_MASK(4)
#define AXP20X_PWR_OUT_LDO3_MASK BIT_MASK(6)
+#define AXP20X_DCDC2_LDO3_V_RAMP_DCDC2_RATE_MASK BIT_MASK(0)
+#define AXP20X_DCDC2_LDO3_V_RAMP_DCDC2_RATE(x) \
+ ((x) << 0)
+#define AXP20X_DCDC2_LDO3_V_RAMP_LDO3_RATE_MASK BIT_MASK(1)
+#define AXP20X_DCDC2_LDO3_V_RAMP_LDO3_RATE(x) \
+ ((x) << 1)
+#define AXP20X_DCDC2_LDO3_V_RAMP_DCDC2_EN_MASK BIT_MASK(2)
+#define AXP20X_DCDC2_LDO3_V_RAMP_DCDC2_EN BIT(2)
+#define AXP20X_DCDC2_LDO3_V_RAMP_LDO3_EN_MASK BIT_MASK(3)
+#define AXP20X_DCDC2_LDO3_V_RAMP_LDO3_EN BIT(3)
+
#define AXP20X_LDO4_V_OUT_1250mV_START 0x0
#define AXP20X_LDO4_V_OUT_1250mV_STEPS 0
#define AXP20X_LDO4_V_OUT_1250mV_END \
@@ -346,6 +357,79 @@
.ops = &axp20x_ops_range, \
}
+static const int axp209_dcdc2_ldo3_slew_rates[] = {
+ 1600,
+ 800,
+};
+
+static int axp20x_set_ramp_delay(struct regulator_dev *rdev, int ramp)
+{
+ struct axp20x_dev *axp20x = rdev_get_drvdata(rdev);
+ const struct regulator_desc *desc = rdev->desc;
+ u8 reg, mask, enable, cfg = 0xff;
+ const int *slew_rates;
+ int rate_count = 0;
+
+ if (!rdev)
+ return -EINVAL;
+
+ switch (axp20x->variant) {
+ case AXP209_ID:
+ if (desc->id == AXP20X_DCDC2) {
+ rate_count = ARRAY_SIZE(axp209_dcdc2_ldo3_slew_rates);
+ reg = AXP20X_DCDC2_LDO3_V_RAMP;
+ mask = AXP20X_DCDC2_LDO3_V_RAMP_DCDC2_RATE_MASK |
+ AXP20X_DCDC2_LDO3_V_RAMP_DCDC2_EN_MASK;
+ enable = (ramp > 0) ?
+ AXP20X_DCDC2_LDO3_V_RAMP_DCDC2_EN :
+ !AXP20X_DCDC2_LDO3_V_RAMP_DCDC2_EN;
+ break;
+ }
+
+ if (desc->id == AXP20X_LDO3) {
+ slew_rates = axp209_dcdc2_ldo3_slew_rates;
+ rate_count = ARRAY_SIZE(axp209_dcdc2_ldo3_slew_rates);
+ reg = AXP20X_DCDC2_LDO3_V_RAMP;
+ mask = AXP20X_DCDC2_LDO3_V_RAMP_LDO3_RATE_MASK |
+ AXP20X_DCDC2_LDO3_V_RAMP_LDO3_EN_MASK;
+ enable = (ramp > 0) ?
+ AXP20X_DCDC2_LDO3_V_RAMP_LDO3_EN :
+ !AXP20X_DCDC2_LDO3_V_RAMP_LDO3_EN;
+ break;
+ }
+
+ if (rate_count > 0)
+ break;
+
+ /* fall through */
+ default:
+ /* Not supported for this regulator */
+ return -ENOTSUPP;
+ }
+
+ if (ramp == 0) {
+ cfg = enable;
+ } else {
+ int i;
+
+ for (i = 0; i < rate_count; i++) {
+ if (ramp <= slew_rates[i])
+ cfg = AXP20X_DCDC2_LDO3_V_RAMP_LDO3_RATE(i);
+ else
+ break;
+ }
+
+ if (cfg == 0xff) {
+ dev_err(axp20x->dev, "unsupported ramp value %d", ramp);
+ return -EINVAL;
+ }
+
+ cfg |= enable;
+ }
+
+ return regmap_update_bits(axp20x->regmap, reg, mask, cfg);
+}
+
static const struct regulator_ops axp20x_ops_fixed = {
.list_voltage = regulator_list_voltage_linear,
};
@@ -366,6 +450,7 @@ static const struct regulator_ops axp20x_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
+ .set_ramp_delay = axp20x_set_ramp_delay,
};
static const struct regulator_ops axp20x_ops_sw = {