+static int bd718x7_xvp_sanity_check(struct regulator_dev *rdev, int lim_uV,
+ int severity)
+{
+ /*
+ * BD71837/47/50 ... (ICs supported by this driver) do not provide
+ * warnings, only protection
+ */
+ if (severity != REGULATOR_SEVERITY_PROT) {
+ dev_err(&rdev->dev,
+ "Unsupported Under Voltage protection level\n");
+ return -EINVAL;
+ }
+
+ /*
+ * And protection limit is not changeable. It can only be enabled
+ * or disabled
+ */
+ if (lim_uV)
+ return -EINVAL;
+
+ return 0;
+}
+
+static int bd718x7_set_ldo_uvp(struct regulator_dev *rdev, int lim_uV,
+ int severity, bool enable)
+{
+ int ldo_offset = rdev->desc->id - BD718XX_LDO1;
+ int prot_bit, ret;
+
+ ret = bd718x7_xvp_sanity_check(rdev, lim_uV, severity);
+ if (ret)
+ return ret;
+
+ prot_bit = BD718XX_LDO1_VRMON80 << ldo_offset;
+
+ if (enable)
+ return regmap_clear_bits(rdev->regmap, BD718XX_REG_MVRFLTMASK2,
+ prot_bit);
+
+ return regmap_set_bits(rdev->regmap, BD718XX_REG_MVRFLTMASK2,
+ prot_bit);
+}
+
+static int bd718x7_get_buck_prot_reg(int id, int *reg)
+{
+
+ if (id > BD718XX_BUCK8) {
+ WARN_ON(id > BD718XX_BUCK8);
+ return -EINVAL;
+ }
+
+ if (id > BD718XX_BUCK4)
+ *reg = BD718XX_REG_MVRFLTMASK0;
+ else
+ *reg = BD718XX_REG_MVRFLTMASK1;
+
+ return 0;
+}
+
+static int bd718x7_get_buck_ovp_info(int id, int *reg, int *bit)
+{
+ int ret;
+
+ ret = bd718x7_get_buck_prot_reg(id, reg);
+ if (ret)
+ return ret;
+
+ *bit = BIT((id % 4) * 2 + 1);
+
+ return 0;
+}
+
+static int bd718x7_get_buck_uvp_info(int id, int *reg, int *bit)
+{
+ int ret;
+
+ ret = bd718x7_get_buck_prot_reg(id, reg);
+ if (ret)
+ return ret;
+
+ *bit = BIT((id % 4) * 2);
+
+ return 0;
+}
+
+static int bd718x7_set_buck_uvp(struct regulator_dev *rdev, int lim_uV,
+ int severity, bool enable)
+{
+ int bit, reg, ret;
+
+ ret = bd718x7_xvp_sanity_check(rdev, lim_uV, severity);
+ if (ret)
+ return ret;
+
+ ret = bd718x7_get_buck_uvp_info(rdev->desc->id, ®, &bit);
+ if (ret)
+ return ret;
+
+ if (enable)
+ return regmap_clear_bits(rdev->regmap, reg, bit);
+
+ return regmap_set_bits(rdev->regmap, reg, bit);
+
+}
+
+static int bd718x7_set_buck_ovp(struct regulator_dev *rdev, int lim_uV,
+ int severity,
+ bool enable)
+{
+ int bit, reg, ret;
+
+ ret = bd718x7_xvp_sanity_check(rdev, lim_uV, severity);
+ if (ret)
+ return ret;
+
+ ret = bd718x7_get_buck_ovp_info(rdev->desc->id, ®, &bit);
+ if (ret)
+ return ret;
+
+ if (enable)
+ return regmap_clear_bits(rdev->regmap, reg, bit);
+
+ return regmap_set_bits(rdev->regmap, reg, bit);
+}
+
+/*
+ * OPS common for BD71847 and BD71850
+ */
+BD718XX_OPS(bd718xx_pickable_range_ldo_ops,
+ regulator_list_voltage_pickable_linear_range, NULL,
+ bd718xx_set_voltage_sel_pickable_restricted,
+ regulator_get_voltage_sel_pickable_regmap, NULL, NULL,
+ bd718x7_set_ldo_uvp, NULL);
+
+/* BD71847 and BD71850 LDO 5 is by default OFF at RUN state */
+static const struct regulator_ops bd718xx_ldo5_ops_hwstate = {
+ .is_enabled = never_enabled_by_hwstate,
+ .list_voltage = regulator_list_voltage_pickable_linear_range,
+ .set_voltage_sel = bd718xx_set_voltage_sel_pickable_restricted,
+ .get_voltage_sel = regulator_get_voltage_sel_pickable_regmap,
+ .set_under_voltage_protection = bd718x7_set_ldo_uvp,
+};
+
+BD718XX_OPS(bd718xx_pickable_range_buck_ops,
+ regulator_list_voltage_pickable_linear_range, NULL,
+ regulator_set_voltage_sel_pickable_regmap,
+ regulator_get_voltage_sel_pickable_regmap,
+ regulator_set_voltage_time_sel, NULL, bd718x7_set_buck_uvp,
+ bd718x7_set_buck_ovp);
+
+BD718XX_OPS(bd718xx_ldo_regulator_ops, regulator_list_voltage_linear_range,
+ NULL, bd718xx_set_voltage_sel_restricted,
+ regulator_get_voltage_sel_regmap, NULL, NULL, bd718x7_set_ldo_uvp,
+ NULL);
+
+BD718XX_OPS(bd718xx_ldo_regulator_nolinear_ops, regulator_list_voltage_table,
+ NULL, bd718xx_set_voltage_sel_restricted,
+ regulator_get_voltage_sel_regmap, NULL, NULL, bd718x7_set_ldo_uvp,
+ NULL);
+
+BD718XX_OPS(bd718xx_buck_regulator_ops, regulator_list_voltage_linear_range,
+ NULL, regulator_set_voltage_sel_regmap,
+ regulator_get_voltage_sel_regmap, regulator_set_voltage_time_sel,
+ NULL, bd718x7_set_buck_uvp, bd718x7_set_buck_ovp);
+
+BD718XX_OPS(bd718xx_buck_regulator_nolinear_ops, regulator_list_voltage_table,
+ regulator_map_voltage_ascend, regulator_set_voltage_sel_regmap,
+ regulator_get_voltage_sel_regmap, regulator_set_voltage_time_sel,
+ NULL, bd718x7_set_buck_uvp, bd718x7_set_buck_ovp);
+
+/*
+ * OPS for BD71837
+ */
+BD718XX_OPS(bd71837_pickable_range_ldo_ops,
+ regulator_list_voltage_pickable_linear_range, NULL,
+ bd71837_set_voltage_sel_pickable_restricted,
+ regulator_get_voltage_sel_pickable_regmap, NULL, NULL,
+ bd718x7_set_ldo_uvp, NULL);
+
+BD718XX_OPS(bd71837_pickable_range_buck_ops,
+ regulator_list_voltage_pickable_linear_range, NULL,
+ bd71837_set_voltage_sel_pickable_restricted,
+ regulator_get_voltage_sel_pickable_regmap,
+ regulator_set_voltage_time_sel, NULL, bd718x7_set_buck_uvp,
+ bd718x7_set_buck_ovp);
+
+BD718XX_OPS(bd71837_ldo_regulator_ops, regulator_list_voltage_linear_range,
+ NULL, bd71837_set_voltage_sel_restricted,
+ regulator_get_voltage_sel_regmap, NULL, NULL, bd718x7_set_ldo_uvp,
+ NULL);
+
+BD718XX_OPS(bd71837_ldo_regulator_nolinear_ops, regulator_list_voltage_table,
+ NULL, bd71837_set_voltage_sel_restricted,
+ regulator_get_voltage_sel_regmap, NULL, NULL, bd718x7_set_ldo_uvp,
+ NULL);
+
+BD718XX_OPS(bd71837_buck_regulator_ops, regulator_list_voltage_linear_range,
+ NULL, bd71837_set_voltage_sel_restricted,
+ regulator_get_voltage_sel_regmap, regulator_set_voltage_time_sel,
+ NULL, bd718x7_set_buck_uvp, bd718x7_set_buck_ovp);
+
+BD718XX_OPS(bd71837_buck_regulator_nolinear_ops, regulator_list_voltage_table,
+ regulator_map_voltage_ascend, bd71837_set_voltage_sel_restricted,
+ regulator_get_voltage_sel_regmap, regulator_set_voltage_time_sel,
+ NULL, bd718x7_set_buck_uvp, bd718x7_set_buck_ovp);
+/*
+ * BD71837 bucks 3 and 4 support defining their enable/disable state also
+ * when buck enable state is under HW state machine control. In that case the
+ * bit [2] in CTRL register is used to indicate if regulator should be ON.
+ */
+static const struct regulator_ops bd71837_buck34_ops_hwctrl = {
+ .is_enabled = bd71837_get_buck34_enable_hwctrl,
+ .list_voltage = regulator_list_voltage_linear_range,
+ .set_voltage_sel = regulator_set_voltage_sel_regmap,
+ .get_voltage_sel = regulator_get_voltage_sel_regmap,
+ .set_voltage_time_sel = regulator_set_voltage_time_sel,
+ .set_ramp_delay = regulator_set_ramp_delay_regmap,
+ .set_under_voltage_protection = bd718x7_set_buck_uvp,
+ .set_over_voltage_protection = bd718x7_set_buck_ovp,
+};
+
+/*
+ * OPS for all of the ICs - BD718(37/47/50)
+ */
+BD718XX_OPS(bd718xx_dvs_buck_regulator_ops, regulator_list_voltage_linear_range,
+ NULL, regulator_set_voltage_sel_regmap,
+ regulator_get_voltage_sel_regmap, regulator_set_voltage_time_sel,
+ regulator_set_ramp_delay_regmap, bd718x7_set_buck_uvp,
+ bd718x7_set_buck_ovp);
+
+
+