regulator: rk808: Add regulator driver for RK818
Add support for the rk818 regulator. The regulator module consists of 4 DCDCs, 9 LDOs, 1 switch and 1 BOOST converter which is used to power OTG and HDMI5V. The output voltages are configurable and are meant to supply power to the main processor and other components. Signed-off-by: Wadim Egorov <w.egorov@phytec.de> Acked-by: Mark Brown <broonie@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>hifive-unleashed-5.1
Wadim Egorov
Lee Jones
parent
2eedcbfc06
commit
1137529353
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@ -635,11 +635,11 @@ config REGULATOR_RC5T583
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outputs which can be controlled by i2c communication.
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config REGULATOR_RK808
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tristate "Rockchip RK808 Power regulators"
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tristate "Rockchip RK808/RK818 Power regulators"
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depends on MFD_RK808
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help
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Select this option to enable the power regulator of ROCKCHIP
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PMIC RK808.
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PMIC RK808 and RK818.
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This driver supports the control of different power rails of device
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through regulator interface. The device supports multiple DCDC/LDO
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outputs which can be controlled by i2c communication.
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@ -1,11 +1,15 @@
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/*
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* Regulator driver for Rockchip RK808
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* Regulator driver for Rockchip RK808/RK818
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*
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* Copyright (c) 2014, Fuzhou Rockchip Electronics Co., Ltd
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*
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* Author: Chris Zhong <zyw@rock-chips.com>
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* Author: Zhang Qing <zhangqing@rock-chips.com>
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*
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* Copyright (C) 2016 PHYTEC Messtechnik GmbH
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*
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* Author: Wadim Egorov <w.egorov@phytec.de>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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@ -32,6 +36,12 @@
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#define RK808_BUCK4_VSEL_MASK 0xf
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#define RK808_LDO_VSEL_MASK 0x1f
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#define RK818_BUCK_VSEL_MASK 0x3f
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#define RK818_BUCK4_VSEL_MASK 0x1f
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#define RK818_LDO_VSEL_MASK 0x1f
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#define RK818_LDO3_ON_VSEL_MASK 0xf
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#define RK818_BOOST_ON_VSEL_MASK 0xe0
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/* Ramp rate definitions for buck1 / buck2 only */
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#define RK808_RAMP_RATE_OFFSET 3
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#define RK808_RAMP_RATE_MASK (3 << RK808_RAMP_RATE_OFFSET)
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@ -454,6 +464,108 @@ static const struct regulator_desc rk808_reg[] = {
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RK808_DCDC_EN_REG, BIT(6)),
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};
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static const struct regulator_desc rk818_reg[] = {
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{
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.name = "DCDC_REG1",
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.supply_name = "vcc1",
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.of_match = of_match_ptr("DCDC_REG1"),
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.regulators_node = of_match_ptr("regulators"),
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.id = RK818_ID_DCDC1,
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.ops = &rk808_reg_ops,
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.type = REGULATOR_VOLTAGE,
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.min_uV = 712500,
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.uV_step = 12500,
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.n_voltages = 64,
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.vsel_reg = RK818_BUCK1_ON_VSEL_REG,
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.vsel_mask = RK818_BUCK_VSEL_MASK,
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.enable_reg = RK818_DCDC_EN_REG,
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.enable_mask = BIT(0),
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.owner = THIS_MODULE,
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}, {
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.name = "DCDC_REG2",
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.supply_name = "vcc2",
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.of_match = of_match_ptr("DCDC_REG2"),
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.regulators_node = of_match_ptr("regulators"),
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.id = RK818_ID_DCDC2,
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.ops = &rk808_reg_ops,
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.type = REGULATOR_VOLTAGE,
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.min_uV = 712500,
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.uV_step = 12500,
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.n_voltages = 64,
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.vsel_reg = RK818_BUCK2_ON_VSEL_REG,
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.vsel_mask = RK818_BUCK_VSEL_MASK,
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.enable_reg = RK818_DCDC_EN_REG,
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.enable_mask = BIT(1),
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.owner = THIS_MODULE,
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}, {
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.name = "DCDC_REG3",
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.supply_name = "vcc3",
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.of_match = of_match_ptr("DCDC_REG3"),
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.regulators_node = of_match_ptr("regulators"),
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.id = RK818_ID_DCDC3,
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.ops = &rk808_switch_ops,
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.type = REGULATOR_VOLTAGE,
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.n_voltages = 1,
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.enable_reg = RK818_DCDC_EN_REG,
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.enable_mask = BIT(2),
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.owner = THIS_MODULE,
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},
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RK8XX_DESC(RK818_ID_DCDC4, "DCDC_REG4", "vcc4", 1800, 3600, 100,
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RK818_BUCK4_ON_VSEL_REG, RK818_BUCK4_VSEL_MASK,
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RK818_DCDC_EN_REG, BIT(3), 0),
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RK8XX_DESC(RK818_ID_BOOST, "DCDC_BOOST", "boost", 4700, 5400, 100,
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RK818_BOOST_LDO9_ON_VSEL_REG, RK818_BOOST_ON_VSEL_MASK,
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RK818_DCDC_EN_REG, BIT(4), 0),
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RK8XX_DESC(RK818_ID_LDO1, "LDO_REG1", "vcc6", 1800, 3400, 100,
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RK818_LDO1_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG,
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BIT(0), 400),
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RK8XX_DESC(RK818_ID_LDO2, "LDO_REG2", "vcc6", 1800, 3400, 100,
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RK818_LDO1_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG,
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BIT(1), 400),
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{
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.name = "LDO_REG3",
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.supply_name = "vcc7",
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.of_match = of_match_ptr("LDO_REG3"),
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.regulators_node = of_match_ptr("regulators"),
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.id = RK818_ID_LDO3,
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.ops = &rk808_reg_ops_ranges,
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.type = REGULATOR_VOLTAGE,
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.n_voltages = 16,
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.linear_ranges = rk808_ldo3_voltage_ranges,
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.n_linear_ranges = ARRAY_SIZE(rk808_ldo3_voltage_ranges),
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.vsel_reg = RK818_LDO3_ON_VSEL_REG,
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.vsel_mask = RK818_LDO3_ON_VSEL_MASK,
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.enable_reg = RK818_LDO_EN_REG,
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.enable_mask = BIT(2),
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.enable_time = 400,
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.owner = THIS_MODULE,
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},
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RK8XX_DESC(RK818_ID_LDO4, "LDO_REG4", "vcc8", 1800, 3400, 100,
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RK818_LDO4_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG,
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BIT(3), 400),
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RK8XX_DESC(RK818_ID_LDO5, "LDO_REG5", "vcc7", 1800, 3400, 100,
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RK818_LDO5_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG,
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BIT(4), 400),
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RK8XX_DESC(RK818_ID_LDO6, "LDO_REG6", "vcc8", 800, 2500, 100,
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RK818_LDO6_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG,
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BIT(5), 400),
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RK8XX_DESC(RK818_ID_LDO7, "LDO_REG7", "vcc7", 800, 2500, 100,
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RK818_LDO7_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG,
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BIT(6), 400),
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RK8XX_DESC(RK818_ID_LDO8, "LDO_REG8", "vcc8", 1800, 3400, 100,
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RK818_LDO8_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG,
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BIT(7), 400),
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RK8XX_DESC(RK818_ID_LDO9, "LDO_REG9", "vcc9", 1800, 3400, 100,
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RK818_BOOST_LDO9_ON_VSEL_REG, RK818_LDO_VSEL_MASK,
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RK818_DCDC_EN_REG, BIT(5), 400),
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RK8XX_DESC_SWITCH(RK818_ID_SWITCH, "SWITCH_REG", "vcc9",
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RK818_DCDC_EN_REG, BIT(6)),
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RK8XX_DESC_SWITCH(RK818_ID_HDMI_SWITCH, "HDMI_SWITCH", "h_5v",
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RK818_H5V_EN_REG, BIT(0)),
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RK8XX_DESC_SWITCH(RK818_ID_OTG_SWITCH, "OTG_SWITCH", "usb",
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RK818_DCDC_EN_REG, BIT(7)),
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};
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static int rk808_regulator_dt_parse_pdata(struct device *dev,
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struct device *client_dev,
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struct regmap *map,
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@ -499,7 +611,8 @@ static int rk808_regulator_probe(struct platform_device *pdev)
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struct regulator_config config = {};
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struct regulator_dev *rk808_rdev;
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struct rk808_regulator_data *pdata;
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int ret, i;
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const struct regulator_desc *regulators;
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int ret, i, nregulators;
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pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
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if (!pdata)
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@ -512,14 +625,29 @@ static int rk808_regulator_probe(struct platform_device *pdev)
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platform_set_drvdata(pdev, pdata);
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switch (rk808->variant) {
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case RK808_ID:
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regulators = rk808_reg;
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nregulators = RK808_NUM_REGULATORS;
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break;
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case RK818_ID:
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regulators = rk818_reg;
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nregulators = RK818_NUM_REGULATORS;
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break;
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default:
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dev_err(&client->dev, "unsupported RK8XX ID %lu\n",
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rk808->variant);
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return -EINVAL;
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}
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config.dev = &client->dev;
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config.driver_data = pdata;
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config.regmap = rk808->regmap;
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/* Instantiate the regulators */
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for (i = 0; i < RK808_NUM_REGULATORS; i++) {
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for (i = 0; i < nregulators; i++) {
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rk808_rdev = devm_regulator_register(&pdev->dev,
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&rk808_reg[i], &config);
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®ulators[i], &config);
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if (IS_ERR(rk808_rdev)) {
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dev_err(&client->dev,
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"failed to register %d regulator\n", i);
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@ -540,8 +668,9 @@ static struct platform_driver rk808_regulator_driver = {
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module_platform_driver(rk808_regulator_driver);
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MODULE_DESCRIPTION("regulator driver for the rk808 series PMICs");
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MODULE_AUTHOR("Chris Zhong<zyw@rock-chips.com>");
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MODULE_AUTHOR("Zhang Qing<zhangqing@rock-chips.com>");
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MODULE_DESCRIPTION("regulator driver for the RK808/RK818 series PMICs");
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MODULE_AUTHOR("Chris Zhong <zyw@rock-chips.com>");
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MODULE_AUTHOR("Zhang Qing <zhangqing@rock-chips.com>");
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MODULE_AUTHOR("Wadim Egorov <w.egorov@phytec.de>");
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MODULE_LICENSE("GPL");
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MODULE_ALIAS("platform:rk808-regulator");
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