From 50314e55a140a0bc898d5f34b591e4e4ecedc75f Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Fri, 25 Mar 2016 14:35:08 -0700 Subject: regulator: qcom_spmi: Add support for pm8994 Document the regulators available on pm8994 and add support for this PMIC to the SPMI PMIC regulator driver. Signed-off-by: Stephen Boyd Signed-off-by: Mark Brown --- .../bindings/regulator/qcom,spmi-regulator.txt | 37 ++++++++++++++++++++++ 1 file changed, 37 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/regulator/qcom,spmi-regulator.txt b/Documentation/devicetree/bindings/regulator/qcom,spmi-regulator.txt index d00bfd8624a5..46c6f3ed1a1c 100644 --- a/Documentation/devicetree/bindings/regulator/qcom,spmi-regulator.txt +++ b/Documentation/devicetree/bindings/regulator/qcom,spmi-regulator.txt @@ -7,6 +7,7 @@ Qualcomm SPMI Regulators "qcom,pm8841-regulators" "qcom,pm8916-regulators" "qcom,pm8941-regulators" + "qcom,pm8994-regulators" - interrupts: Usage: optional @@ -68,6 +69,37 @@ Qualcomm SPMI Regulators Definition: Reference to regulator supplying the input pin, as described in the data sheet. +- vdd_s1-supply: +- vdd_s2-supply: +- vdd_s3-supply: +- vdd_s4-supply: +- vdd_s5-supply: +- vdd_s6-supply: +- vdd_s7-supply: +- vdd_s8-supply: +- vdd_s9-supply: +- vdd_s10-supply: +- vdd_s11-supply: +- vdd_s12-supply: +- vdd_l1-supply: +- vdd_l2_l26_l28-supply: +- vdd_l3_l11-supply: +- vdd_l4_l27_l31-supply: +- vdd_l5_l7-supply: +- vdd_l6_l12_l32-supply: +- vdd_l8_l16_l30-supply: +- vdd_l9_l10_l18_l22-supply: +- vdd_l13_l19_l23_l24-supply: +- vdd_l14_l15-supply: +- vdd_l17_l29-supply: +- vdd_l20_l21-supply: +- vdd_l25-supply: +- vdd_lvs_1_2-supply: + Usage: optional (pm8994 only) + Value type: + Definition: Reference to regulator supplying the input pin, as + described in the data sheet. + The regulator node houses sub-nodes for each regulator within the device. Each sub-node is identified using the node's name, with valid values listed for each @@ -85,6 +117,11 @@ pm8941: l15, l16, l17, l18, l19, l20, l21, l22, l23, l24, lvs1, lvs2, lvs3, mvs1, mvs2 +pm8994: + s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, l1, l2, l3, l4, l5, + l6, l7, l8, l9, l10, l11, l12, l13, l14, l15, l16, l17, l18, l19, l20, + l21, l22, l23, l24, l25, l26, l27, l28, l29, l30, l31, l32, lvs1, lvs2 + The content of each sub-node is defined by the standard binding for regulators - see regulator.txt - with additional custom properties described below: -- cgit v1.2.3 From a221f95ef4257a48c4f8cba8e804431ab66a359d Mon Sep 17 00:00:00 2001 From: Ivaylo Dimitrov Date: Tue, 5 Apr 2016 08:59:34 +0300 Subject: regulator: twl: Provide of_map_mode for twl4030 of_map_mode is needed so to be possible to set initial regulators mode from the board DTS. Otherwise, for DT boot, regulators are left in their default state after reset/reboot. Document device specific modes as well. Signed-off-by: Ivaylo Dimitrov Signed-off-by: Mark Brown --- .../bindings/regulator/twl-regulator.txt | 6 ++++++ drivers/regulator/twl-regulator.c | 22 +++++++++++++++++++--- 2 files changed, 25 insertions(+), 3 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/regulator/twl-regulator.txt b/Documentation/devicetree/bindings/regulator/twl-regulator.txt index 75b0c1669504..74a91c4f8530 100644 --- a/Documentation/devicetree/bindings/regulator/twl-regulator.txt +++ b/Documentation/devicetree/bindings/regulator/twl-regulator.txt @@ -57,6 +57,12 @@ For twl4030 regulators/LDOs Optional properties: - Any optional property defined in bindings/regulator/regulator.txt +For twl4030 regulators/LDOs: + - regulator-initial-mode: + - 0x08 - Sleep mode, the nominal output voltage is maintained with low power + consumption with low load current capability. + - 0x0e - Active mode, the regulator can deliver its nominal output voltage + with full-load current capability. Example: diff --git a/drivers/regulator/twl-regulator.c b/drivers/regulator/twl-regulator.c index 7355616194ab..11c6a5c98c46 100644 --- a/drivers/regulator/twl-regulator.c +++ b/drivers/regulator/twl-regulator.c @@ -387,6 +387,18 @@ static int twl4030reg_set_mode(struct regulator_dev *rdev, unsigned mode) return twl4030_send_pb_msg(message); } +static inline unsigned int twl4030reg_map_mode(unsigned int mode) +{ + switch (mode) { + case RES_STATE_ACTIVE: + return REGULATOR_MODE_NORMAL; + case RES_STATE_SLEEP: + return REGULATOR_MODE_STANDBY; + default: + return -EINVAL; + } +} + static int twl6030reg_set_mode(struct regulator_dev *rdev, unsigned mode) { struct twlreg_info *info = rdev_get_drvdata(rdev); @@ -889,10 +901,11 @@ static struct regulator_ops twlsmps_ops = { #define TWL4030_FIXED_LDO(label, offset, mVolts, num, turnon_delay, \ remap_conf) \ TWL_FIXED_LDO(label, offset, mVolts, num, turnon_delay, \ - remap_conf, TWL4030, twl4030fixed_ops) + remap_conf, TWL4030, twl4030fixed_ops, \ + twl4030reg_map_mode) #define TWL6030_FIXED_LDO(label, offset, mVolts, turnon_delay) \ TWL_FIXED_LDO(label, offset, mVolts, 0x0, turnon_delay, \ - 0x0, TWL6030, twl6030fixed_ops) + 0x0, TWL6030, twl6030fixed_ops, 0x0) #define TWL4030_ADJUSTABLE_LDO(label, offset, num, turnon_delay, remap_conf) \ static const struct twlreg_info TWL4030_INFO_##label = { \ @@ -909,6 +922,7 @@ static const struct twlreg_info TWL4030_INFO_##label = { \ .type = REGULATOR_VOLTAGE, \ .owner = THIS_MODULE, \ .enable_time = turnon_delay, \ + .of_map_mode = twl4030reg_map_mode, \ }, \ } @@ -924,6 +938,7 @@ static const struct twlreg_info TWL4030_INFO_##label = { \ .type = REGULATOR_VOLTAGE, \ .owner = THIS_MODULE, \ .enable_time = turnon_delay, \ + .of_map_mode = twl4030reg_map_mode, \ }, \ } @@ -969,7 +984,7 @@ static const struct twlreg_info TWL6032_INFO_##label = { \ } #define TWL_FIXED_LDO(label, offset, mVolts, num, turnon_delay, remap_conf, \ - family, operations) \ + family, operations, map_mode) \ static const struct twlreg_info TWLFIXED_INFO_##label = { \ .base = offset, \ .id = num, \ @@ -984,6 +999,7 @@ static const struct twlreg_info TWLFIXED_INFO_##label = { \ .owner = THIS_MODULE, \ .min_uV = mVolts * 1000, \ .enable_time = turnon_delay, \ + .of_map_mode = map_mode, \ }, \ } -- cgit v1.2.3 From 19dd159ce8086293b70bd8e1aeebe06aff8d7df8 Mon Sep 17 00:00:00 2001 From: Laxman Dewangan Date: Wed, 13 Apr 2016 15:29:44 +0530 Subject: regulator: max8973: add DT binding details for junction warn temp The driver MAX8973 supports the driver for Maxim MAX77621. MAX77621 supports the junction temp warning at 120 degC and 140 degC which is configurable. It generates alert signal when junction temperature crosses these threshold. Add DT properties and its binding details to make this configuration from DT. Signed-off-by: Laxman Dewangan Signed-off-by: Mark Brown --- Documentation/devicetree/bindings/regulator/max8973-regulator.txt | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/regulator/max8973-regulator.txt b/Documentation/devicetree/bindings/regulator/max8973-regulator.txt index f80ea2fe27e6..c2c68fcc1b41 100644 --- a/Documentation/devicetree/bindings/regulator/max8973-regulator.txt +++ b/Documentation/devicetree/bindings/regulator/max8973-regulator.txt @@ -32,6 +32,13 @@ Optional properties: Enhanced transient response (ETR) will affect the configuration of CKADV. +-junction-warn-millicelsius: u32, junction warning temperature threshold + in millicelsius. If die temperature crosses this level then + device generates the warning interrupts. + +Please note that thermal functionality is only supported on MAX77621. The +supported threshold warning temperature for MAX77621 are 120 degC and 140 degC. + Example: max8973@1b { -- cgit v1.2.3 From 99cf3af5e2d5c74e016ae9517a4dced3f1dbcf6a Mon Sep 17 00:00:00 2001 From: James Ban Date: Fri, 15 Apr 2016 13:34:22 +0900 Subject: regulator: pv88080: new regulator driver This is the driver for the Powerventure PV88080 BUCKs regulator. It communicates via an I2C bus to the device. Signed-off-by: James Ban Signed-off-by: Mark Brown --- .../devicetree/bindings/regulator/pv88080.txt | 49 +++ drivers/regulator/Kconfig | 7 + drivers/regulator/Makefile | 1 + drivers/regulator/pv88080-regulator.c | 419 +++++++++++++++++++++ drivers/regulator/pv88080-regulator.h | 92 +++++ 5 files changed, 568 insertions(+) create mode 100644 Documentation/devicetree/bindings/regulator/pv88080.txt create mode 100644 drivers/regulator/pv88080-regulator.c create mode 100644 drivers/regulator/pv88080-regulator.h (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/regulator/pv88080.txt b/Documentation/devicetree/bindings/regulator/pv88080.txt new file mode 100644 index 000000000000..38a614210dcb --- /dev/null +++ b/Documentation/devicetree/bindings/regulator/pv88080.txt @@ -0,0 +1,49 @@ +* Powerventure Semiconductor PV88080 Voltage Regulator + +Required properties: +- compatible: "pvs,pv88080". +- reg: I2C slave address, usually 0x49. +- interrupts: the interrupt outputs of the controller +- regulators: A node that houses a sub-node for each regulator within the + device. Each sub-node is identified using the node's name, with valid + values listed below. The content of each sub-node is defined by the + standard binding for regulators; see regulator.txt. + BUCK1, BUCK2, and BUCK3. + +Optional properties: +- Any optional property defined in regulator.txt + +Example + + pmic: pv88080@49 { + compatible = "pvs,pv88080"; + reg = <0x49>; + interrupt-parent = <&gpio>; + interrupts = <24 24>; + + regulators { + BUCK1 { + regulator-name = "buck1"; + regulator-min-microvolt = < 600000>; + regulator-max-microvolt = <1393750>; + regulator-min-microamp = < 220000>; + regulator-max-microamp = <7040000>; + }; + + BUCK2 { + regulator-name = "buck2"; + regulator-min-microvolt = < 600000>; + regulator-max-microvolt = <1393750>; + regulator-min-microamp = <1496000>; + regulator-max-microamp = <4189000>; + }; + + BUCK3 { + regulator-name = "buck3"; + regulator-min-microvolt = <1400000>; + regulator-max-microvolt = <2193750>; + regulator-min-microamp = <1496000>; + regulator-max-microamp = <4189000>; + }; + }; + }; diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index c77dc08b1202..0b616e2192cc 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -548,6 +548,13 @@ config REGULATOR_PV88060 Say y here to support the voltage regulators and convertors PV88060 +config REGULATOR_PV88080 + tristate "Powerventure Semiconductor PV88080 regulator" + depends on I2C + select REGMAP_I2C + help + Say y here to support the buck convertors on PV88080 + config REGULATOR_PV88090 tristate "Powerventure Semiconductor PV88090 regulator" depends on I2C diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile index 61bfbb9d4a0c..2f6f9f862aea 100644 --- a/drivers/regulator/Makefile +++ b/drivers/regulator/Makefile @@ -71,6 +71,7 @@ obj-$(CONFIG_REGULATOR_QCOM_SPMI) += qcom_spmi-regulator.o obj-$(CONFIG_REGULATOR_PALMAS) += palmas-regulator.o obj-$(CONFIG_REGULATOR_PFUZE100) += pfuze100-regulator.o obj-$(CONFIG_REGULATOR_PV88060) += pv88060-regulator.o +obj-$(CONFIG_REGULATOR_PV88080) += pv88080-regulator.o obj-$(CONFIG_REGULATOR_PV88090) += pv88090-regulator.o obj-$(CONFIG_REGULATOR_PWM) += pwm-regulator.o obj-$(CONFIG_REGULATOR_TPS51632) += tps51632-regulator.o diff --git a/drivers/regulator/pv88080-regulator.c b/drivers/regulator/pv88080-regulator.c new file mode 100644 index 000000000000..d7107566c429 --- /dev/null +++ b/drivers/regulator/pv88080-regulator.c @@ -0,0 +1,419 @@ +/* + * pv88080-regulator.c - Regulator device driver for PV88080 + * Copyright (C) 2016 Powerventure Semiconductor Ltd. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "pv88080-regulator.h" + +#define PV88080_MAX_REGULATORS 3 + +/* PV88080 REGULATOR IDs */ +enum { + /* BUCKs */ + PV88080_ID_BUCK1, + PV88080_ID_BUCK2, + PV88080_ID_BUCK3, +}; + +struct pv88080_regulator { + struct regulator_desc desc; + /* Current limiting */ + unsigned int n_current_limits; + const int *current_limits; + unsigned int limit_mask; + unsigned int conf; + unsigned int conf2; + unsigned int conf5; +}; + +struct pv88080 { + struct device *dev; + struct regmap *regmap; + struct regulator_dev *rdev[PV88080_MAX_REGULATORS]; +}; + +struct pv88080_buck_voltage { + int min_uV; + int max_uV; + int uV_step; +}; + +static const struct regmap_config pv88080_regmap_config = { + .reg_bits = 8, + .val_bits = 8, +}; + +/* Current limits array (in uA) for BUCK1, BUCK2, BUCK3. + * Entry indexes corresponds to register values. + */ + +static const int pv88080_buck1_limits[] = { + 3230000, 5130000, 6960000, 8790000 +}; + +static const int pv88080_buck23_limits[] = { + 1496000, 2393000, 3291000, 4189000 +}; + +static const struct pv88080_buck_voltage pv88080_buck_vol[2] = { + { + .min_uV = 600000, + .max_uV = 1393750, + .uV_step = 6250, + }, + { + .min_uV = 1400000, + .max_uV = 2193750, + .uV_step = 6250, + }, +}; + +static unsigned int pv88080_buck_get_mode(struct regulator_dev *rdev) +{ + struct pv88080_regulator *info = rdev_get_drvdata(rdev); + unsigned int data; + int ret, mode = 0; + + ret = regmap_read(rdev->regmap, info->conf, &data); + if (ret < 0) + return ret; + + switch (data & PV88080_BUCK1_MODE_MASK) { + case PV88080_BUCK_MODE_SYNC: + mode = REGULATOR_MODE_FAST; + break; + case PV88080_BUCK_MODE_AUTO: + mode = REGULATOR_MODE_NORMAL; + break; + case PV88080_BUCK_MODE_SLEEP: + mode = REGULATOR_MODE_STANDBY; + break; + default: + return -EINVAL; + } + + return mode; +} + +static int pv88080_buck_set_mode(struct regulator_dev *rdev, + unsigned int mode) +{ + struct pv88080_regulator *info = rdev_get_drvdata(rdev); + int val = 0; + + switch (mode) { + case REGULATOR_MODE_FAST: + val = PV88080_BUCK_MODE_SYNC; + break; + case REGULATOR_MODE_NORMAL: + val = PV88080_BUCK_MODE_AUTO; + break; + case REGULATOR_MODE_STANDBY: + val = PV88080_BUCK_MODE_SLEEP; + break; + default: + return -EINVAL; + } + + return regmap_update_bits(rdev->regmap, info->conf, + PV88080_BUCK1_MODE_MASK, val); +} + +static int pv88080_set_current_limit(struct regulator_dev *rdev, int min, + int max) +{ + struct pv88080_regulator *info = rdev_get_drvdata(rdev); + int i; + + /* search for closest to maximum */ + for (i = info->n_current_limits; i >= 0; i--) { + if (min <= info->current_limits[i] + && max >= info->current_limits[i]) { + return regmap_update_bits(rdev->regmap, + info->conf, + info->limit_mask, + i << PV88080_BUCK1_ILIM_SHIFT); + } + } + + return -EINVAL; +} + +static int pv88080_get_current_limit(struct regulator_dev *rdev) +{ + struct pv88080_regulator *info = rdev_get_drvdata(rdev); + unsigned int data; + int ret; + + ret = regmap_read(rdev->regmap, info->conf, &data); + if (ret < 0) + return ret; + + data = (data & info->limit_mask) >> PV88080_BUCK1_ILIM_SHIFT; + return info->current_limits[data]; +} + +static struct regulator_ops pv88080_buck_ops = { + .get_mode = pv88080_buck_get_mode, + .set_mode = pv88080_buck_set_mode, + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .list_voltage = regulator_list_voltage_linear, + .set_current_limit = pv88080_set_current_limit, + .get_current_limit = pv88080_get_current_limit, +}; + +#define PV88080_BUCK(chip, regl_name, min, step, max, limits_array) \ +{\ + .desc = {\ + .id = chip##_ID_##regl_name,\ + .name = __stringify(chip##_##regl_name),\ + .of_match = of_match_ptr(#regl_name),\ + .regulators_node = of_match_ptr("regulators"),\ + .type = REGULATOR_VOLTAGE,\ + .owner = THIS_MODULE,\ + .ops = &pv88080_buck_ops,\ + .min_uV = min, \ + .uV_step = step, \ + .n_voltages = ((max) - (min))/(step) + 1, \ + .enable_reg = PV88080_REG_##regl_name##_CONF0, \ + .enable_mask = PV88080_##regl_name##_EN, \ + .vsel_reg = PV88080_REG_##regl_name##_CONF0, \ + .vsel_mask = PV88080_V##regl_name##_MASK, \ + },\ + .current_limits = limits_array, \ + .n_current_limits = ARRAY_SIZE(limits_array), \ + .limit_mask = PV88080_##regl_name##_ILIM_MASK, \ + .conf = PV88080_REG_##regl_name##_CONF1, \ + .conf2 = PV88080_REG_##regl_name##_CONF2, \ + .conf5 = PV88080_REG_##regl_name##_CONF5, \ +} + +static struct pv88080_regulator pv88080_regulator_info[] = { + PV88080_BUCK(PV88080, BUCK1, 600000, 6250, 1393750, + pv88080_buck1_limits), + PV88080_BUCK(PV88080, BUCK2, 600000, 6250, 1393750, + pv88080_buck23_limits), + PV88080_BUCK(PV88080, BUCK3, 600000, 6250, 1393750, + pv88080_buck23_limits), +}; + +static irqreturn_t pv88080_irq_handler(int irq, void *data) +{ + struct pv88080 *chip = data; + int i, reg_val, err, ret = IRQ_NONE; + + err = regmap_read(chip->regmap, PV88080_REG_EVENT_A, ®_val); + if (err < 0) + goto error_i2c; + + if (reg_val & PV88080_E_VDD_FLT) { + for (i = 0; i < PV88080_MAX_REGULATORS; i++) { + if (chip->rdev[i] != NULL) { + regulator_notifier_call_chain(chip->rdev[i], + REGULATOR_EVENT_UNDER_VOLTAGE, + NULL); + } + } + + err = regmap_write(chip->regmap, PV88080_REG_EVENT_A, + PV88080_E_VDD_FLT); + if (err < 0) + goto error_i2c; + + ret = IRQ_HANDLED; + } + + if (reg_val & PV88080_E_OVER_TEMP) { + for (i = 0; i < PV88080_MAX_REGULATORS; i++) { + if (chip->rdev[i] != NULL) { + regulator_notifier_call_chain(chip->rdev[i], + REGULATOR_EVENT_OVER_TEMP, + NULL); + } + } + + err = regmap_write(chip->regmap, PV88080_REG_EVENT_A, + PV88080_E_OVER_TEMP); + if (err < 0) + goto error_i2c; + + ret = IRQ_HANDLED; + } + + return ret; + +error_i2c: + dev_err(chip->dev, "I2C error : %d\n", err); + return IRQ_NONE; +} + +/* + * I2C driver interface functions + */ +static int pv88080_i2c_probe(struct i2c_client *i2c, + const struct i2c_device_id *id) +{ + struct regulator_init_data *init_data = dev_get_platdata(&i2c->dev); + struct pv88080 *chip; + struct regulator_config config = { }; + int i, error, ret; + unsigned int conf2, conf5; + + chip = devm_kzalloc(&i2c->dev, sizeof(struct pv88080), GFP_KERNEL); + if (!chip) + return -ENOMEM; + + chip->dev = &i2c->dev; + chip->regmap = devm_regmap_init_i2c(i2c, &pv88080_regmap_config); + if (IS_ERR(chip->regmap)) { + error = PTR_ERR(chip->regmap); + dev_err(chip->dev, "Failed to allocate register map: %d\n", + error); + return error; + } + + i2c_set_clientdata(i2c, chip); + + if (i2c->irq != 0) { + ret = regmap_write(chip->regmap, PV88080_REG_MASK_A, 0xFF); + if (ret < 0) { + dev_err(chip->dev, + "Failed to mask A reg: %d\n", ret); + return ret; + } + ret = regmap_write(chip->regmap, PV88080_REG_MASK_B, 0xFF); + if (ret < 0) { + dev_err(chip->dev, + "Failed to mask B reg: %d\n", ret); + return ret; + } + ret = regmap_write(chip->regmap, PV88080_REG_MASK_C, 0xFF); + if (ret < 0) { + dev_err(chip->dev, + "Failed to mask C reg: %d\n", ret); + return ret; + } + + ret = devm_request_threaded_irq(&i2c->dev, i2c->irq, NULL, + pv88080_irq_handler, + IRQF_TRIGGER_LOW|IRQF_ONESHOT, + "pv88080", chip); + if (ret != 0) { + dev_err(chip->dev, "Failed to request IRQ: %d\n", + i2c->irq); + return ret; + } + + ret = regmap_update_bits(chip->regmap, PV88080_REG_MASK_A, + PV88080_M_VDD_FLT | PV88080_M_OVER_TEMP, 0); + if (ret < 0) { + dev_err(chip->dev, + "Failed to update mask reg: %d\n", ret); + return ret; + } + + } else { + dev_warn(chip->dev, "No IRQ configured\n"); + } + + config.dev = chip->dev; + config.regmap = chip->regmap; + + for (i = 0; i < PV88080_MAX_REGULATORS; i++) { + if (init_data) + config.init_data = &init_data[i]; + + ret = regmap_read(chip->regmap, + pv88080_regulator_info[i].conf2, &conf2); + if (ret < 0) + return ret; + + conf2 = ((conf2 >> PV88080_BUCK_VDAC_RANGE_SHIFT) & + PV88080_BUCK_VDAC_RANGE_MASK); + + ret = regmap_read(chip->regmap, + pv88080_regulator_info[i].conf5, &conf5); + if (ret < 0) + return ret; + + conf5 = ((conf5 >> PV88080_BUCK_VRANGE_GAIN_SHIFT) & + PV88080_BUCK_VRANGE_GAIN_MASK); + + pv88080_regulator_info[i].desc.min_uV = + pv88080_buck_vol[conf2].min_uV * (conf5+1); + pv88080_regulator_info[i].desc.uV_step = + pv88080_buck_vol[conf2].uV_step * (conf5+1); + pv88080_regulator_info[i].desc.n_voltages = + ((pv88080_buck_vol[conf2].max_uV * (conf5+1)) + - (pv88080_regulator_info[i].desc.min_uV)) + /(pv88080_regulator_info[i].desc.uV_step) + 1; + + config.driver_data = (void *)&pv88080_regulator_info[i]; + chip->rdev[i] = devm_regulator_register(chip->dev, + &pv88080_regulator_info[i].desc, &config); + if (IS_ERR(chip->rdev[i])) { + dev_err(chip->dev, + "Failed to register PV88080 regulator\n"); + return PTR_ERR(chip->rdev[i]); + } + } + + return 0; +} + +static const struct i2c_device_id pv88080_i2c_id[] = { + {"pv88080", 0}, + {}, +}; +MODULE_DEVICE_TABLE(i2c, pv88080_i2c_id); + +#ifdef CONFIG_OF +static const struct of_device_id pv88080_dt_ids[] = { + { .compatible = "pvs,pv88080", .data = &pv88080_i2c_id[0] }, + {}, +}; +MODULE_DEVICE_TABLE(of, pv88080_dt_ids); +#endif + +static struct i2c_driver pv88080_regulator_driver = { + .driver = { + .name = "pv88080", + .of_match_table = of_match_ptr(pv88080_dt_ids), + }, + .probe = pv88080_i2c_probe, + .id_table = pv88080_i2c_id, +}; + +module_i2c_driver(pv88080_regulator_driver); + +MODULE_AUTHOR("James Ban "); +MODULE_DESCRIPTION("Regulator device driver for Powerventure PV88080"); +MODULE_LICENSE("GPL"); diff --git a/drivers/regulator/pv88080-regulator.h b/drivers/regulator/pv88080-regulator.h new file mode 100644 index 000000000000..5e9afde606f4 --- /dev/null +++ b/drivers/regulator/pv88080-regulator.h @@ -0,0 +1,92 @@ +/* + * pv88080-regulator.h - Regulator definitions for PV88080 + * Copyright (C) 2016 Powerventure Semiconductor Ltd. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef __PV88080_REGISTERS_H__ +#define __PV88080_REGISTERS_H__ + +/* System Control and Event Registers */ +#define PV88080_REG_EVENT_A 0x04 +#define PV88080_REG_MASK_A 0x09 +#define PV88080_REG_MASK_B 0x0a +#define PV88080_REG_MASK_C 0x0b + +/* Regulator Registers */ +#define PV88080_REG_BUCK1_CONF0 0x27 +#define PV88080_REG_BUCK1_CONF1 0x28 +#define PV88080_REG_BUCK1_CONF2 0x59 +#define PV88080_REG_BUCK1_CONF5 0x5c +#define PV88080_REG_BUCK2_CONF0 0x29 +#define PV88080_REG_BUCK2_CONF1 0x2a +#define PV88080_REG_BUCK2_CONF2 0x61 +#define PV88080_REG_BUCK2_CONF5 0x64 +#define PV88080_REG_BUCK3_CONF0 0x2b +#define PV88080_REG_BUCK3_CONF1 0x2c +#define PV88080_REG_BUCK3_CONF2 0x69 +#define PV88080_REG_BUCK3_CONF5 0x6c + +/* PV88080_REG_EVENT_A (addr=0x04) */ +#define PV88080_E_VDD_FLT 0x01 +#define PV88080_E_OVER_TEMP 0x02 + +/* PV88080_REG_MASK_A (addr=0x09) */ +#define PV88080_M_VDD_FLT 0x01 +#define PV88080_M_OVER_TEMP 0x02 + +/* PV88080_REG_BUCK1_CONF0 (addr=0x27) */ +#define PV88080_BUCK1_EN 0x80 +#define PV88080_VBUCK1_MASK 0x7F +/* PV88080_REG_BUCK2_CONF0 (addr=0x29) */ +#define PV88080_BUCK2_EN 0x80 +#define PV88080_VBUCK2_MASK 0x7F +/* PV88080_REG_BUCK3_CONF0 (addr=0x2b) */ +#define PV88080_BUCK3_EN 0x80 +#define PV88080_VBUCK3_MASK 0x7F + +/* PV88080_REG_BUCK1_CONF1 (addr=0x28) */ +#define PV88080_BUCK1_ILIM_SHIFT 2 +#define PV88080_BUCK1_ILIM_MASK 0x0C +#define PV88080_BUCK1_MODE_MASK 0x03 + +/* PV88080_REG_BUCK2_CONF1 (addr=0x2a) */ +#define PV88080_BUCK2_ILIM_SHIFT 2 +#define PV88080_BUCK2_ILIM_MASK 0x0C +#define PV88080_BUCK2_MODE_MASK 0x03 + +/* PV88080_REG_BUCK3_CONF1 (addr=0x2c) */ +#define PV88080_BUCK3_ILIM_SHIFT 2 +#define PV88080_BUCK3_ILIM_MASK 0x0C +#define PV88080_BUCK3_MODE_MASK 0x03 + +#define PV88080_BUCK_MODE_SLEEP 0x00 +#define PV88080_BUCK_MODE_AUTO 0x01 +#define PV88080_BUCK_MODE_SYNC 0x02 + +/* PV88080_REG_BUCK2_CONF2 (addr=0x61) */ +/* PV88080_REG_BUCK3_CONF2 (addr=0x69) */ +#define PV88080_BUCK_VDAC_RANGE_SHIFT 7 +#define PV88080_BUCK_VDAC_RANGE_MASK 0x01 + +#define PV88080_BUCK_VDAC_RANGE_1 0x00 +#define PV88080_BUCK_VDAC_RANGE_2 0x01 + +/* PV88080_REG_BUCK2_CONF5 (addr=0x64) */ +/* PV88080_REG_BUCK3_CONF5 (addr=0x6c) */ +#define PV88080_BUCK_VRANGE_GAIN_SHIFT 0 +#define PV88080_BUCK_VRANGE_GAIN_MASK 0x01 + +#define PV88080_BUCK_VRANGE_GAIN_1 0x00 +#define PV88080_BUCK_VRANGE_GAIN_2 0x01 + +#endif /* __PV88080_REGISTERS_H__ */ -- cgit v1.2.3 From 1a4d5a3e2caacd104e82ebd3c4964e681de1aa8a Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Wed, 20 Apr 2016 17:32:19 +0200 Subject: regulator: ti-abb: DT spelling s/#{address,size}-cell/#{address,size}-cells/ Signed-off-by: Geert Uytterhoeven Signed-off-by: Mark Brown --- .../devicetree/bindings/regulator/ti-abb-regulator.txt | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/regulator/ti-abb-regulator.txt b/Documentation/devicetree/bindings/regulator/ti-abb-regulator.txt index c58db75f959e..c3f6546ebac7 100644 --- a/Documentation/devicetree/bindings/regulator/ti-abb-regulator.txt +++ b/Documentation/devicetree/bindings/regulator/ti-abb-regulator.txt @@ -14,8 +14,8 @@ Required Properties: - "setup-address" - contains setup register address of ABB module (ti,abb-v3) - "int-address" - contains address of interrupt register for ABB module (also see Optional properties) -- #address-cell: should be 0 -- #size-cell: should be 0 +- #address-cells: should be 0 +- #size-cells: should be 0 - clocks: should point to the clock node used by ABB module - ti,settling-time: Settling time in uSecs from SoC documentation for ABB module to settle down(target time for SR2_WTCNT_VALUE). @@ -69,7 +69,7 @@ Example #1: Simplest configuration (no efuse data, hard coded ABB table): abb_x: regulator-abb-x { compatible = "ti,abb-v1"; regulator-name = "abb_x"; - #address-cell = <0>; + #address-cells = <0>; #size-cells = <0>; reg = <0x483072f0 0x8>, <0x48306818 0x4>; reg-names = "base-address", "int-address"; @@ -89,7 +89,7 @@ Example #2: Efuse bits contain ABB mode setting (no LDO override capability) abb_y: regulator-abb-y { compatible = "ti,abb-v2"; regulator-name = "abb_y"; - #address-cell = <0>; + #address-cells = <0>; #size-cells = <0>; reg = <0x4a307bd0 0x8>, <0x4a306014 0x4>, <0x4A002268 0x8>; reg-names = "base-address", "int-address", "efuse-address"; @@ -110,7 +110,7 @@ Example #3: Efuse bits contain ABB mode setting and LDO override capability abb_z: regulator-abb-z { compatible = "ti,abb-v2"; regulator-name = "abb_z"; - #address-cell = <0>; + #address-cells = <0>; #size-cells = <0>; reg = <0x4ae07ce4 0x8>, <0x4ae06010 0x4>, <0x4a002194 0x8>, <0x4ae0C314 0x4>; -- cgit v1.2.3 From e7fc278ceb5725070e4e3ecfc2f259ab2101c30e Mon Sep 17 00:00:00 2001 From: Laxman Dewangan Date: Fri, 22 Apr 2016 18:09:40 +0530 Subject: regulator: max77620: Add details of device specific ramp rate setting It is observed that the ramp rate measured on platform is not same as advertised ramp rate due to platform design variation. On this case, measured ramp rate is provided with property regulator-ramp-rate. For such cases, add DT property for device specific configurations. Signed-off-by: Laxman Dewangan Signed-off-by: Mark Brown --- .../bindings/regulator/regulator-max77620.txt | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/regulator/regulator-max77620.txt b/Documentation/devicetree/bindings/regulator/regulator-max77620.txt index b3c8ca672024..1c4bfe786736 100644 --- a/Documentation/devicetree/bindings/regulator/regulator-max77620.txt +++ b/Documentation/devicetree/bindings/regulator/regulator-max77620.txt @@ -94,6 +94,28 @@ Following are additional properties: This is applicable if suspend state FPS source is selected as FPS0, FPS1 or FPS2. +- maxim,ramp-rate-setting: integer, ramp rate(uV/us) setting to be + configured to the device. + The platform may have different ramp + rate than advertised ramp rate if it has + design variation from Maxim's + recommended. On this case, platform + specific ramp rate is used for ramp time + calculation and this property is used + for device register configurations. + The measured ramp rate of platform is + provided by the regulator-ramp-delay + as described in . + Maxim Max77620 supports following ramp + delay: + SD: 13.75mV/us, 27.5mV/us, 55mV/us + LDOs: 5mV/us, 100mV/us + +Note: If the measured ramp delay is same as advertised ramp delay then it is not +required to provide the ramp delay with property "maxim,ramp-rate-setting". The +ramp rate can be provided by the regulator-ramp-delay which will be used for +ramp time calculation for voltage change as well as for device configuration. Example: -------- -- cgit v1.2.3