390 lines
10 KiB
C
390 lines
10 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2018 Flowbird
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* Martin Fuzzey <martin.fuzzey@flowbird.group>
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*/
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#include <common.h>
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#include <dm.h>
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#include <linux/bitops.h>
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#include <power/da9063_pmic.h>
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#include <power/pmic.h>
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#include <power/regulator.h>
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#define DA9063_BUCK_EN 0x01
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#define DA9063_LDO_EN 0x01
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#define DA9063_VBUCK_MASK 0x7F
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#define DA9063_BUCK_SL 0x80
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#define DA9063_LDO_SL 0x80
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#define DA9063_VLDO1_MASK 0x3F
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#define DA9063_VLDO2_MASK 0x3F
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#define DA9063_VLDO3_MASK 0x7F
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#define DA9063_VLDO4_MASK 0x7F
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#define DA9063_VLDO5_MASK 0x3F
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#define DA9063_VLDO6_MASK 0x3F
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#define DA9063_VLDO7_MASK 0x3F
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#define DA9063_VLDO8_MASK 0x3F
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#define DA9063_VLDO9_MASK 0x3F
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#define DA9063_VLDO10_MASK 0x3F
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#define DA9063_VLDO11_MASK 0x3F
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#define DA9063_BUCK_MODE_MASK 0xC0
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#define DA9063_BUCK_MODE_MANUAL 0x00
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#define DA9063_BUCK_MODE_SLEEP 0x40
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#define DA9063_BUCK_MODE_SYNC 0x80
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#define DA9063_BUCK_MODE_AUTO 0xC0
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#define DA9063_BIO_ILIM_MASK 0x0F
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#define DA9063_BMEM_ILIM_MASK 0xF0
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#define DA9063_BPRO_ILIM_MASK 0x0F
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#define DA9063_BPERI_ILIM_MASK 0xF0
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#define DA9063_BCORE1_ILIM_MASK 0x0F
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#define DA9063_BCORE2_ILIM_MASK 0xF0
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struct da9063_reg_info {
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uint min_uV;
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uint step_uV;
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uint max_uV;
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uint min_uA;
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uint step_uA;
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uint max_uA;
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uint en_reg;
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uint vsel_reg;
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uint mode_reg;
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uint ilim_reg;
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u8 en_mask;
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u8 vsel_mask;
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u8 ilim_mask;
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const char *dt_node_name;
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const int *current_limits;
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};
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struct da9063_priv {
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const struct da9063_reg_info *reg_info;
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};
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static struct dm_regulator_mode da9063_ldo_modes[] = {
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{ .id = DA9063_LDOMODE_SLEEP,
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.register_value = DA9063_LDO_SL, .name = "SLEEP" },
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{ .id = DA9063_LDOMODE_NORMAL,
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.register_value = 0, .name = "NORMAL" },
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};
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#define DA9063_LDO(regl_name, min_mV, step_mV, max_mV) \
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.min_uV = (min_mV) * 1000, \
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.step_uV = (step_mV) * 1000, \
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.max_uV = (max_mV) * 1000, \
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.en_reg = DA9063_REG_##regl_name##_CONT, \
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.en_mask = DA9063_LDO_EN, \
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.vsel_reg = DA9063_REG_V##regl_name##_A, \
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.vsel_mask = DA9063_V##regl_name##_MASK, \
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.mode_reg = DA9063_REG_V##regl_name##_A \
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/* This array is directly indexed so must stay in numerical order */
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static const struct da9063_reg_info da9063_ldo_info[] = {
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{ DA9063_LDO(LDO1, 600, 20, 1860) },
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{ DA9063_LDO(LDO2, 600, 20, 1860) },
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{ DA9063_LDO(LDO3, 900, 20, 3440) },
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{ DA9063_LDO(LDO4, 900, 20, 3440) },
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{ DA9063_LDO(LDO5, 900, 50, 3600) },
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{ DA9063_LDO(LDO6, 900, 50, 3600) },
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{ DA9063_LDO(LDO7, 900, 50, 3600) },
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{ DA9063_LDO(LDO8, 900, 50, 3600) },
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{ DA9063_LDO(LDO9, 950, 50, 3600) },
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{ DA9063_LDO(LDO10, 900, 50, 3600) },
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{ DA9063_LDO(LDO11, 900, 50, 3600) },
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};
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static struct dm_regulator_mode da9063_buck_modes[] = {
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{ .id = DA9063_BUCKMODE_SLEEP,
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.register_value = DA9063_BUCK_MODE_SLEEP, .name = "SLEEP" },
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{ .id = DA9063_BUCKMODE_SYNC,
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.register_value = DA9063_BUCK_MODE_SYNC, .name = "SYNC" },
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{ .id = DA9063_BUCKMODE_AUTO,
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.register_value = DA9063_BUCK_MODE_AUTO, .name = "AUTO" },
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};
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#define DA9063_BUCK(regl_name, dt_name, \
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min_mV, step_mV, max_mV, \
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min_mA, step_mA, max_mA, _ilim_reg) \
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.dt_node_name = dt_name, \
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.min_uV = (min_mV) * 1000, \
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.step_uV = (step_mV) * 1000, \
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.max_uV = (max_mV) * 1000, \
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.min_uA = (min_mA) * 1000, \
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.step_uA = (step_mA) * 1000, \
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.max_uA = (max_mA) * 1000, \
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.en_reg = DA9063_REG_##regl_name##_CONT, \
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.en_mask = DA9063_BUCK_EN, \
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.vsel_reg = DA9063_REG_V##regl_name##_A, \
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.vsel_mask = DA9063_VBUCK_MASK, \
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.mode_reg = DA9063_REG_##regl_name##_CFG, \
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.ilim_reg = DA9063_REG_BUCK_ILIM_##_ilim_reg, \
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.ilim_mask = DA9063_##regl_name##_ILIM_MASK
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static const struct da9063_reg_info da9063_buck_info[] = {
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/* mV mA */
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{ DA9063_BUCK(BCORE1, "bcore1", 300, 10, 1570, 500, 100, 2000, C) },
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{ DA9063_BUCK(BCORE2, "bcore2", 300, 10, 1570, 500, 100, 2000, C) },
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{ DA9063_BUCK(BPRO, "bpro", 530, 10, 1800, 500, 100, 2000, B) },
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{ DA9063_BUCK(BMEM, "bmem", 800, 20, 3340, 1500, 100, 3000, A) },
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{ DA9063_BUCK(BIO, "bio", 800, 20, 3340, 1500, 100, 3000, A) },
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{ DA9063_BUCK(BPERI, "bperi", 800, 20, 3340, 1500, 100, 3000, B) },
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};
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static int da9063_get_enable(struct udevice *dev)
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{
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const struct da9063_priv *priv = dev_get_priv(dev);
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const struct da9063_reg_info *info = priv->reg_info;
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int ret;
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ret = pmic_reg_read(dev->parent, info->en_reg);
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if (ret < 0)
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return ret;
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return ret & info->en_mask ? true : false;
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}
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static int da9063_set_enable(struct udevice *dev, bool enable)
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{
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const struct da9063_priv *priv = dev_get_priv(dev);
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const struct da9063_reg_info *info = priv->reg_info;
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return pmic_clrsetbits(dev->parent, info->en_reg,
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info->en_mask, enable ? info->en_mask : 0);
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}
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static int da9063_get_voltage(struct udevice *dev)
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{
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const struct da9063_priv *priv = dev_get_priv(dev);
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const struct da9063_reg_info *info = priv->reg_info;
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int ret;
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ret = pmic_reg_read(dev->parent, info->vsel_reg);
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if (ret < 0)
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return ret;
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return info->min_uV + (ret & info->vsel_mask) * info->step_uV;
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}
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static int da9063_set_voltage(struct udevice *dev, int uV)
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{
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const struct da9063_priv *priv = dev_get_priv(dev);
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const struct da9063_reg_info *info = priv->reg_info;
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uint sel;
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if (uV < info->min_uV || uV > info->max_uV)
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return -EINVAL;
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sel = (uV - info->min_uV) / info->step_uV;
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return pmic_clrsetbits(dev->parent, info->vsel_reg,
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info->vsel_mask, sel);
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}
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static const struct dm_regulator_mode
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*da9063_find_mode_by_id(int id,
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const struct dm_regulator_mode *modes,
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uint mode_count)
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{
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for (; mode_count; mode_count--) {
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if (modes->id == id)
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return modes;
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modes++;
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}
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return NULL;
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}
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static int ldo_get_mode(struct udevice *dev)
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{
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const struct da9063_priv *priv = dev_get_priv(dev);
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const struct da9063_reg_info *info = priv->reg_info;
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int val;
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val = pmic_reg_read(dev->parent, info->mode_reg);
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if (val < 0)
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return val;
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if (val & DA9063_LDO_SL)
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return DA9063_LDOMODE_SLEEP;
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else
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return DA9063_LDOMODE_NORMAL;
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}
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static int ldo_set_mode(struct udevice *dev, int mode_id)
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{
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const struct da9063_priv *priv = dev_get_priv(dev);
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const struct da9063_reg_info *info = priv->reg_info;
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const struct dm_regulator_mode *mode;
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mode = da9063_find_mode_by_id(mode_id,
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da9063_ldo_modes,
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ARRAY_SIZE(da9063_ldo_modes));
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if (!mode)
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return -EINVAL;
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return pmic_clrsetbits(dev->parent, info->mode_reg,
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DA9063_LDO_SL, mode->register_value);
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}
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static int buck_get_mode(struct udevice *dev)
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{
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const struct da9063_priv *priv = dev_get_priv(dev);
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const struct da9063_reg_info *info = priv->reg_info;
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int i;
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int val;
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val = pmic_reg_read(dev->parent, info->mode_reg);
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if (val < 0)
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return val;
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val &= DA9063_BUCK_MODE_MASK;
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if (val == DA9063_BUCK_MODE_MANUAL) {
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val = pmic_reg_read(dev->parent, info->vsel_reg);
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if (val < 0)
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return val;
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if (val & DA9063_BUCK_SL)
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return DA9063_BUCKMODE_SLEEP;
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else
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return DA9063_BUCKMODE_SYNC;
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}
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for (i = 0; i < ARRAY_SIZE(da9063_buck_modes); i++) {
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if (da9063_buck_modes[i].register_value == val)
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return da9063_buck_modes[i].id;
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}
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return -EINVAL;
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}
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static int buck_set_mode(struct udevice *dev, int mode_id)
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{
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const struct da9063_priv *priv = dev_get_priv(dev);
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const struct da9063_reg_info *info = priv->reg_info;
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const struct dm_regulator_mode *mode;
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mode = da9063_find_mode_by_id(mode_id,
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da9063_buck_modes,
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ARRAY_SIZE(da9063_buck_modes));
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if (!mode)
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return -EINVAL;
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return pmic_clrsetbits(dev->parent, info->mode_reg,
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DA9063_BUCK_MODE_MASK, mode->register_value);
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}
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static int buck_get_current_limit(struct udevice *dev)
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{
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const struct da9063_priv *priv = dev_get_priv(dev);
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const struct da9063_reg_info *info = priv->reg_info;
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int val;
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val = pmic_reg_read(dev->parent, info->ilim_reg);
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if (val < 0)
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return val;
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val &= info->ilim_mask;
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val >>= (ffs(info->ilim_mask) - 1);
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return info->min_uA + val * info->step_uA;
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}
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static int buck_set_current_limit(struct udevice *dev, int uA)
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{
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const struct da9063_priv *priv = dev_get_priv(dev);
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const struct da9063_reg_info *info = priv->reg_info;
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int val;
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if (uA < info->min_uA || uA > info->max_uA)
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return -EINVAL;
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val = (uA - info->min_uA) / info->step_uA;
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val <<= (ffs(info->ilim_mask) - 1);
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return pmic_clrsetbits(dev->parent, info->ilim_reg,
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info->ilim_mask, val);
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}
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static int da9063_ldo_probe(struct udevice *dev)
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{
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struct dm_regulator_uclass_plat *uc_pdata;
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struct da9063_priv *priv = dev_get_priv(dev);
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/* LDOs are named numerically in DT so can directly index */
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if (dev->driver_data < 1 ||
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dev->driver_data > ARRAY_SIZE(da9063_ldo_info))
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return -EINVAL;
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priv->reg_info = &da9063_ldo_info[dev->driver_data - 1];
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uc_pdata = dev_get_uclass_plat(dev);
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uc_pdata->type = REGULATOR_TYPE_LDO;
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uc_pdata->mode = da9063_ldo_modes;
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uc_pdata->mode_count = ARRAY_SIZE(da9063_ldo_modes);
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return 0;
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}
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static int da9063_buck_probe(struct udevice *dev)
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{
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struct dm_regulator_uclass_plat *uc_pdata;
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struct da9063_priv *priv = dev_get_priv(dev);
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int i;
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/* Bucks have names rather than numbers so need to match with DT */
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for (i = 0; i < ARRAY_SIZE(da9063_buck_info); i++) {
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const struct da9063_reg_info *info = &da9063_buck_info[i];
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if (!strcmp(info->dt_node_name, dev->name)) {
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priv->reg_info = info;
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break;
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}
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}
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if (!priv->reg_info)
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return -ENODEV;
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uc_pdata = dev_get_uclass_plat(dev);
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uc_pdata->type = REGULATOR_TYPE_BUCK;
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uc_pdata->mode = da9063_buck_modes;
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uc_pdata->mode_count = ARRAY_SIZE(da9063_buck_modes);
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return 0;
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}
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static const struct dm_regulator_ops da9063_ldo_ops = {
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.get_value = da9063_get_voltage,
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.set_value = da9063_set_voltage,
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.get_enable = da9063_get_enable,
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.set_enable = da9063_set_enable,
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.get_mode = ldo_get_mode,
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.set_mode = ldo_set_mode,
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};
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U_BOOT_DRIVER(da9063_ldo) = {
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.name = DA9063_LDO_DRIVER,
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.id = UCLASS_REGULATOR,
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.ops = &da9063_ldo_ops,
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.probe = da9063_ldo_probe,
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.priv_auto = sizeof(struct da9063_priv),
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};
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static const struct dm_regulator_ops da9063_buck_ops = {
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.get_value = da9063_get_voltage,
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.set_value = da9063_set_voltage,
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.get_enable = da9063_get_enable,
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.set_enable = da9063_set_enable,
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.get_mode = buck_get_mode,
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.set_mode = buck_set_mode,
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.get_current = buck_get_current_limit,
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.set_current = buck_set_current_limit,
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};
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U_BOOT_DRIVER(da9063_buck) = {
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.name = DA9063_BUCK_DRIVER,
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.id = UCLASS_REGULATOR,
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.ops = &da9063_buck_ops,
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.probe = da9063_buck_probe,
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.priv_auto = sizeof(struct da9063_priv),
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};
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