Lines Matching +full:i2c +full:- +full:lt +full:- +full:enable
1 // SPDX-License-Identifier: GPL-2.0
9 #include <linux/i2c.h>
55 .max_register = PCA9450_MAX_REGISTER - 1,
72 .enable = regulator_enable_regmap,
83 .enable = regulator_enable_regmap,
93 .enable = regulator_enable_regmap,
160 if (ret == -EINVAL) in buck_set_dvs()
165 for (i = 0; i < desc->n_voltages; i++) { in buck_set_dvs()
170 i <<= ffs(desc->vsel_mask) - 1; in buck_set_dvs()
180 /* Enable DVS control through PMIC_STBY_REQ for this BUCK */ in buck_set_dvs()
181 ret = regmap_update_bits(regmap, regulator->desc.enable_reg, in buck_set_dvs()
193 const struct pc9450_dvs_config *dvs = &data->dvs; in pca9450_set_dvs_levels()
201 prop = "nxp,dvs-run-voltage"; in pca9450_set_dvs_levels()
202 reg = dvs->run_reg; in pca9450_set_dvs_levels()
203 mask = dvs->run_mask; in pca9450_set_dvs_levels()
206 prop = "nxp,dvs-standby-voltage"; in pca9450_set_dvs_levels()
207 reg = dvs->standby_reg; in pca9450_set_dvs_levels()
208 mask = dvs->standby_mask; in pca9450_set_dvs_levels()
211 return -EINVAL; in pca9450_set_dvs_levels()
214 ret = buck_set_dvs(desc, np, cfg->regmap, prop, reg, mask); in pca9450_set_dvs_levels()
668 struct regmap *regmap = pca9450->regmap; in pca9450_irq_handler()
674 dev_err(pca9450->dev, in pca9450_irq_handler()
680 dev_warn(pca9450->dev, "PWRON interrupt.\n"); in pca9450_irq_handler()
683 dev_warn(pca9450->dev, "WDOGB interrupt.\n"); in pca9450_irq_handler()
686 dev_warn(pca9450->dev, "VRFLT1 interrupt.\n"); in pca9450_irq_handler()
689 dev_warn(pca9450->dev, "VRFLT2 interrupt.\n"); in pca9450_irq_handler()
692 dev_warn(pca9450->dev, "LOWVSYS interrupt.\n"); in pca9450_irq_handler()
695 dev_warn(pca9450->dev, "IRQ_THERM_105 interrupt.\n"); in pca9450_irq_handler()
698 dev_warn(pca9450->dev, "IRQ_THERM_125 interrupt.\n"); in pca9450_irq_handler()
703 static int pca9450_i2c_probe(struct i2c_client *i2c) in pca9450_i2c_probe() argument
706 of_device_get_match_data(&i2c->dev); in pca9450_i2c_probe()
714 if (!i2c->irq) { in pca9450_i2c_probe()
715 dev_err(&i2c->dev, "No IRQ configured?\n"); in pca9450_i2c_probe()
716 return -EINVAL; in pca9450_i2c_probe()
719 pca9450 = devm_kzalloc(&i2c->dev, sizeof(struct pca9450), GFP_KERNEL); in pca9450_i2c_probe()
721 return -ENOMEM; in pca9450_i2c_probe()
726 pca9450->rcnt = ARRAY_SIZE(pca9450a_regulators); in pca9450_i2c_probe()
730 pca9450->rcnt = ARRAY_SIZE(pca9450bc_regulators); in pca9450_i2c_probe()
733 dev_err(&i2c->dev, "Unknown device type"); in pca9450_i2c_probe()
734 return -EINVAL; in pca9450_i2c_probe()
737 pca9450->irq = i2c->irq; in pca9450_i2c_probe()
738 pca9450->type = type; in pca9450_i2c_probe()
739 pca9450->dev = &i2c->dev; in pca9450_i2c_probe()
741 dev_set_drvdata(&i2c->dev, pca9450); in pca9450_i2c_probe()
743 pca9450->regmap = devm_regmap_init_i2c(i2c, in pca9450_i2c_probe()
745 if (IS_ERR(pca9450->regmap)) { in pca9450_i2c_probe()
746 dev_err(&i2c->dev, "regmap initialization failed\n"); in pca9450_i2c_probe()
747 return PTR_ERR(pca9450->regmap); in pca9450_i2c_probe()
750 ret = regmap_read(pca9450->regmap, PCA9450_REG_DEV_ID, &device_id); in pca9450_i2c_probe()
752 dev_err(&i2c->dev, "Read device id error\n"); in pca9450_i2c_probe()
759 dev_err(&i2c->dev, "Device id(%x) mismatched\n", in pca9450_i2c_probe()
761 return -EINVAL; in pca9450_i2c_probe()
764 for (i = 0; i < pca9450->rcnt; i++) { in pca9450_i2c_probe()
770 desc = &r->desc; in pca9450_i2c_probe()
772 config.regmap = pca9450->regmap; in pca9450_i2c_probe()
773 config.dev = pca9450->dev; in pca9450_i2c_probe()
775 rdev = devm_regulator_register(pca9450->dev, desc, &config); in pca9450_i2c_probe()
778 dev_err(pca9450->dev, in pca9450_i2c_probe()
780 desc->name, ret); in pca9450_i2c_probe()
785 ret = devm_request_threaded_irq(pca9450->dev, pca9450->irq, NULL, in pca9450_i2c_probe()
788 "pca9450-irq", pca9450); in pca9450_i2c_probe()
790 dev_err(pca9450->dev, "Failed to request IRQ: %d\n", in pca9450_i2c_probe()
791 pca9450->irq); in pca9450_i2c_probe()
795 ret = regmap_update_bits(pca9450->regmap, PCA9450_REG_INT1_MSK, in pca9450_i2c_probe()
800 dev_err(&i2c->dev, "Unmask irq error\n"); in pca9450_i2c_probe()
805 ret = regmap_clear_bits(pca9450->regmap, PCA9450_REG_BUCK123_DVS, in pca9450_i2c_probe()
808 dev_err(&i2c->dev, "Failed to clear PRESET_EN bit: %d\n", ret); in pca9450_i2c_probe()
812 if (of_property_read_bool(i2c->dev.of_node, "nxp,wdog_b-warm-reset")) in pca9450_i2c_probe()
818 ret = regmap_update_bits(pca9450->regmap, PCA9450_REG_RESET_CTRL, in pca9450_i2c_probe()
821 dev_err(&i2c->dev, "Failed to set WDOG_B reset behavior\n"); in pca9450_i2c_probe()
825 if (of_property_read_bool(i2c->dev.of_node, "nxp,i2c-lt-enable")) { in pca9450_i2c_probe()
826 /* Enable I2C Level Translator */ in pca9450_i2c_probe()
827 ret = regmap_update_bits(pca9450->regmap, PCA9450_REG_CONFIG2, in pca9450_i2c_probe()
830 dev_err(&i2c->dev, in pca9450_i2c_probe()
831 "Failed to enable I2C level translator\n"); in pca9450_i2c_probe()
841 pca9450->sd_vsel_gpio = gpiod_get_optional(pca9450->dev, "sd-vsel", GPIOD_OUT_HIGH); in pca9450_i2c_probe()
843 if (IS_ERR(pca9450->sd_vsel_gpio)) { in pca9450_i2c_probe()
844 dev_err(&i2c->dev, "Failed to get SD_VSEL GPIO\n"); in pca9450_i2c_probe()
845 return PTR_ERR(pca9450->sd_vsel_gpio); in pca9450_i2c_probe()
848 dev_info(&i2c->dev, "%s probed.\n", in pca9450_i2c_probe()
873 .name = "nxp-pca9450",