From: Martin Fuzzey martin.fuzzey@flowbird.group
Add a driver for the regulators in the the DA9063 PMIC.
Robert Beckett: move regulator modes to header so board code can set modes. Correct mode mask used in ldo_set_mode.
Signed-off-by: Martin Fuzzey martin.fuzzey@flowbird.group Signed-off-by: Robert Beckett bob.beckett@collabora.com --- drivers/power/regulator/Kconfig | 10 + drivers/power/regulator/Makefile | 1 + drivers/power/regulator/da9063.c | 388 +++++++++++++++++++++++++++++++ include/power/da9063_pmic.h | 12 + 4 files changed, 411 insertions(+) create mode 100644 drivers/power/regulator/da9063.c
diff --git a/drivers/power/regulator/Kconfig b/drivers/power/regulator/Kconfig index 9aa00fad42..ab58e2eb56 100644 --- a/drivers/power/regulator/Kconfig +++ b/drivers/power/regulator/Kconfig @@ -60,6 +60,16 @@ config SPL_DM_REGULATOR_BD71837 This config enables implementation of driver-model regulator uclass features for regulators on ROHM BD71837 and BD71847 in SPL.
+config DM_REGULATOR_DA9063 + bool "Enable Driver Model for REGULATOR DA9063" + depends on DM_REGULATOR && DM_PMIC_DA9063 + help + This config enables implementation of driver-model regulator uclass + features for REGULATOR DA9063. + The driver implements get/set api for value, enable and mode for all + regulators. It also implements the get/set api for current for the + buck regulators. + config DM_REGULATOR_PFUZE100 bool "Enable Driver Model for REGULATOR PFUZE100" depends on DM_REGULATOR && DM_PMIC_PFUZE100 diff --git a/drivers/power/regulator/Makefile b/drivers/power/regulator/Makefile index 6a3d4bbee4..b05a71562c 100644 --- a/drivers/power/regulator/Makefile +++ b/drivers/power/regulator/Makefile @@ -7,6 +7,7 @@ obj-$(CONFIG_$(SPL_)DM_REGULATOR) += regulator-uclass.o obj-$(CONFIG_REGULATOR_ACT8846) += act8846.o obj-$(CONFIG_REGULATOR_AS3722) += as3722_regulator.o +obj-$(CONFIG_DM_REGULATOR_DA9063) += da9063.o obj-$(CONFIG_DM_REGULATOR_MAX77686) += max77686.o obj-$(CONFIG_$(SPL_)DM_PMIC_PFUZE100) += pfuze100.o obj-$(CONFIG_$(SPL_)DM_REGULATOR_BD71837) += bd71837.o diff --git a/drivers/power/regulator/da9063.c b/drivers/power/regulator/da9063.c new file mode 100644 index 0000000000..8990be113e --- /dev/null +++ b/drivers/power/regulator/da9063.c @@ -0,0 +1,388 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2018 Flowbird + * Martin Fuzzey martin.fuzzey@flowbird.group + */ + +#include <common.h> +#include <dm.h> +#include <power/da9063_pmic.h> +#include <power/pmic.h> +#include <power/regulator.h> + +#define DA9063_BUCK_EN 0x01 +#define DA9063_LDO_EN 0x01 +#define DA9063_VBUCK_MASK 0x7F +#define DA9063_BUCK_SL 0x80 +#define DA9063_LDO_SL 0x80 + +#define DA9063_VLDO1_MASK 0x3F +#define DA9063_VLDO2_MASK 0x3F +#define DA9063_VLDO3_MASK 0x7F +#define DA9063_VLDO4_MASK 0x7F +#define DA9063_VLDO5_MASK 0x3F +#define DA9063_VLDO6_MASK 0x3F +#define DA9063_VLDO7_MASK 0x3F +#define DA9063_VLDO8_MASK 0x3F +#define DA9063_VLDO9_MASK 0x3F +#define DA9063_VLDO10_MASK 0x3F +#define DA9063_VLDO11_MASK 0x3F + +#define DA9063_BUCK_MODE_MASK 0xC0 +#define DA9063_BUCK_MODE_MANUAL 0x00 +#define DA9063_BUCK_MODE_SLEEP 0x40 +#define DA9063_BUCK_MODE_SYNC 0x80 +#define DA9063_BUCK_MODE_AUTO 0xC0 + +#define DA9063_BIO_ILIM_MASK 0x0F +#define DA9063_BMEM_ILIM_MASK 0xF0 +#define DA9063_BPRO_ILIM_MASK 0x0F +#define DA9063_BPERI_ILIM_MASK 0xF0 +#define DA9063_BCORE1_ILIM_MASK 0x0F +#define DA9063_BCORE2_ILIM_MASK 0xF0 + +struct da9063_reg_info { + uint min_uV; + uint step_uV; + uint max_uV; + uint min_uA; + uint step_uA; + uint max_uA; + uint en_reg; + uint vsel_reg; + uint mode_reg; + uint ilim_reg; + u8 en_mask; + u8 vsel_mask; + u8 ilim_mask; + const char *dt_node_name; + const int *current_limits; +}; + +struct da9063_priv { + const struct da9063_reg_info *reg_info; +}; + +static struct dm_regulator_mode da9063_ldo_modes[] = { + { .id = DA9063_LDOMODE_SLEEP, + .register_value = DA9063_LDO_SL, .name = "SLEEP" }, + { .id = DA9063_LDOMODE_NORMAL, + .register_value = 0, .name = "NORMAL" }, +}; + +#define DA9063_LDO(regl_name, min_mV, step_mV, max_mV) \ + .min_uV = (min_mV) * 1000, \ + .step_uV = (step_mV) * 1000, \ + .max_uV = (max_mV) * 1000, \ + .en_reg = DA9063_REG_##regl_name##_CONT, \ + .en_mask = DA9063_LDO_EN, \ + .vsel_reg = DA9063_REG_V##regl_name##_A, \ + .vsel_mask = DA9063_V##regl_name##_MASK, \ + .mode_reg = DA9063_REG_V##regl_name##_A \ + +/* This array is directly indexed so must stay in numerical order */ +static const struct da9063_reg_info da9063_ldo_info[] = { + { DA9063_LDO(LDO1, 600, 20, 1860) }, + { DA9063_LDO(LDO2, 600, 20, 1860) }, + { DA9063_LDO(LDO3, 900, 20, 3440) }, + { DA9063_LDO(LDO4, 900, 20, 3440) }, + { DA9063_LDO(LDO5, 900, 50, 3600) }, + { DA9063_LDO(LDO6, 900, 50, 3600) }, + { DA9063_LDO(LDO7, 900, 50, 3600) }, + { DA9063_LDO(LDO8, 900, 50, 3600) }, + { DA9063_LDO(LDO9, 950, 50, 3600) }, + { DA9063_LDO(LDO10, 900, 50, 3600) }, + { DA9063_LDO(LDO11, 900, 50, 3600) }, +}; + +static struct dm_regulator_mode da9063_buck_modes[] = { + { .id = DA9063_BUCKMODE_SLEEP, + .register_value = DA9063_BUCK_MODE_SLEEP, .name = "SLEEP" }, + { .id = DA9063_BUCKMODE_SYNC, + .register_value = DA9063_BUCK_MODE_SYNC, .name = "SYNC" }, + { .id = DA9063_BUCKMODE_AUTO, + .register_value = DA9063_BUCK_MODE_AUTO, .name = "AUTO" }, +}; + +#define DA9063_BUCK(regl_name, dt_name, \ + min_mV, step_mV, max_mV, \ + min_mA, step_mA, max_mA, _ilim_reg) \ + .dt_node_name = dt_name, \ + .min_uV = (min_mV) * 1000, \ + .step_uV = (step_mV) * 1000, \ + .max_uV = (max_mV) * 1000, \ + .min_uA = (min_mA) * 1000, \ + .step_uA = (step_mA) * 1000, \ + .max_uA = (max_mA) * 1000, \ + .en_reg = DA9063_REG_##regl_name##_CONT, \ + .en_mask = DA9063_BUCK_EN, \ + .vsel_reg = DA9063_REG_V##regl_name##_A, \ + .vsel_mask = DA9063_VBUCK_MASK, \ + .mode_reg = DA9063_REG_##regl_name##_CFG, \ + .ilim_reg = DA9063_REG_BUCK_ILIM_##_ilim_reg, \ + .ilim_mask = DA9063_##regl_name##_ILIM_MASK + +static const struct da9063_reg_info da9063_buck_info[] = { + /* mV mA */ + { DA9063_BUCK(BCORE1, "bcore1", 300, 10, 1570, 500, 100, 2000, C) }, + { DA9063_BUCK(BCORE2, "bcore2", 300, 10, 1570, 500, 100, 2000, C) }, + { DA9063_BUCK(BPRO, "bpro", 530, 10, 1800, 500, 100, 2000, B) }, + { DA9063_BUCK(BMEM, "bmem", 800, 20, 3340, 1500, 100, 3000, A) }, + { DA9063_BUCK(BIO, "bio", 800, 20, 3340, 1500, 100, 3000, A) }, + { DA9063_BUCK(BPERI, "bperi", 800, 20, 3340, 1500, 100, 3000, B) }, +}; + +static int da9063_get_enable(struct udevice *dev) +{ + const struct da9063_priv *priv = dev->priv; + const struct da9063_reg_info *info = priv->reg_info; + int ret; + + ret = pmic_reg_read(dev->parent, info->en_reg); + if (ret < 0) + return ret; + + return ret & info->en_mask ? true : false; +} + +static int da9063_set_enable(struct udevice *dev, bool enable) +{ + const struct da9063_priv *priv = dev->priv; + const struct da9063_reg_info *info = priv->reg_info; + + return pmic_clrsetbits(dev->parent, info->en_reg, + info->en_mask, enable ? info->en_mask : 0); +} + +static int da9063_get_voltage(struct udevice *dev) +{ + const struct da9063_priv *priv = dev->priv; + const struct da9063_reg_info *info = priv->reg_info; + int ret; + + ret = pmic_reg_read(dev->parent, info->vsel_reg); + if (ret < 0) + return ret; + + return info->min_uV + (ret & info->vsel_mask) * info->step_uV; +} + +static int da9063_set_voltage(struct udevice *dev, int uV) +{ + const struct da9063_priv *priv = dev->priv; + const struct da9063_reg_info *info = priv->reg_info; + uint sel; + + if (uV < info->min_uV || uV > info->max_uV) + return -EINVAL; + + sel = (uV - info->min_uV) / info->step_uV; + + return pmic_clrsetbits(dev->parent, info->vsel_reg, + info->vsel_mask, sel); +} + +static const struct dm_regulator_mode + *da9063_find_mode_by_id(int id, + const struct dm_regulator_mode *modes, + uint mode_count) +{ + for (; mode_count; mode_count--) { + if (modes->id == id) + return modes; + modes++; + } + return NULL; +} + +static int ldo_get_mode(struct udevice *dev) +{ + const struct da9063_priv *priv = dev->priv; + const struct da9063_reg_info *info = priv->reg_info; + int val; + + val = pmic_reg_read(dev->parent, info->mode_reg); + if (val < 0) + return val; + + if (val & DA9063_LDO_SL) + return DA9063_LDOMODE_SLEEP; + else + return DA9063_LDOMODE_NORMAL; +} + +static int ldo_set_mode(struct udevice *dev, int mode_id) +{ + const struct da9063_priv *priv = dev->priv; + const struct da9063_reg_info *info = priv->reg_info; + const struct dm_regulator_mode *mode; + + mode = da9063_find_mode_by_id(mode_id, + da9063_ldo_modes, + ARRAY_SIZE(da9063_ldo_modes)); + if (!mode) + return -EINVAL; + + return pmic_clrsetbits(dev->parent, info->mode_reg, + DA9063_LDO_SL, mode->register_value); +} + +static int buck_get_mode(struct udevice *dev) +{ + const struct da9063_priv *priv = dev->priv; + const struct da9063_reg_info *info = priv->reg_info; + int i; + int val; + + val = pmic_reg_read(dev->parent, info->mode_reg); + if (val < 0) + return val; + + val &= DA9063_BUCK_MODE_MASK; + if (val == DA9063_BUCK_MODE_MANUAL) { + val = pmic_reg_read(dev->parent, info->vsel_reg); + if (val < 0) + return val; + + if (val & DA9063_BUCK_SL) + return DA9063_BUCKMODE_SLEEP; + else + return DA9063_BUCKMODE_SYNC; + } + + for (i = 0; i < ARRAY_SIZE(da9063_buck_modes); i++) { + if (da9063_buck_modes[i].register_value == val) + return da9063_buck_modes[i].id; + } + + return -EINVAL; +} + +static int buck_set_mode(struct udevice *dev, int mode_id) +{ + const struct da9063_priv *priv = dev->priv; + const struct da9063_reg_info *info = priv->reg_info; + const struct dm_regulator_mode *mode; + + mode = da9063_find_mode_by_id(mode_id, + da9063_buck_modes, + ARRAY_SIZE(da9063_buck_modes)); + if (!mode) + return -EINVAL; + + return pmic_clrsetbits(dev->parent, info->mode_reg, + DA9063_BUCK_MODE_MASK, mode->register_value); +} + +static int buck_get_current_limit(struct udevice *dev) +{ + const struct da9063_priv *priv = dev->priv; + const struct da9063_reg_info *info = priv->reg_info; + int val; + + val = pmic_reg_read(dev->parent, info->ilim_reg); + if (val < 0) + return val; + + val &= info->ilim_mask; + val >>= (ffs(info->ilim_mask) - 1); + + return info->min_uA + val * info->step_uA; +} + +static int buck_set_current_limit(struct udevice *dev, int uA) +{ + const struct da9063_priv *priv = dev->priv; + const struct da9063_reg_info *info = priv->reg_info; + int val; + + if (uA < info->min_uA || uA > info->max_uA) + return -EINVAL; + + val = (uA - info->min_uA) / info->step_uA; + val <<= (ffs(info->ilim_mask) - 1); + + return pmic_clrsetbits(dev->parent, info->ilim_reg, + info->ilim_mask, val); +} + +static int da9063_ldo_probe(struct udevice *dev) +{ + struct dm_regulator_uclass_platdata *uc_pdata; + struct da9063_priv *priv = dev->priv; + + /* LDOs are named numerically in DT so can directly index */ + if (dev->driver_data < 1 || + dev->driver_data > ARRAY_SIZE(da9063_ldo_info)) + return -EINVAL; + priv->reg_info = &da9063_ldo_info[dev->driver_data - 1]; + + uc_pdata = dev_get_uclass_platdata(dev); + uc_pdata->type = REGULATOR_TYPE_LDO; + uc_pdata->mode = da9063_ldo_modes; + uc_pdata->mode_count = ARRAY_SIZE(da9063_ldo_modes); + + return 0; +} + +static int da9063_buck_probe(struct udevice *dev) +{ + struct dm_regulator_uclass_platdata *uc_pdata; + struct da9063_priv *priv = dev->priv; + int i; + + /* Bucks have names rather than numbers so need to match with DT */ + for (i = 0; i < ARRAY_SIZE(da9063_buck_info); i++) { + const struct da9063_reg_info *info = &da9063_buck_info[i]; + + if (!strcmp(info->dt_node_name, dev->name)) { + priv->reg_info = info; + break; + } + } + if (!priv->reg_info) + return -ENODEV; + + uc_pdata = dev_get_uclass_platdata(dev); + uc_pdata->type = REGULATOR_TYPE_BUCK; + uc_pdata->mode = da9063_buck_modes; + uc_pdata->mode_count = ARRAY_SIZE(da9063_buck_modes); + + return 0; +} + +static const struct dm_regulator_ops da9063_ldo_ops = { + .get_value = da9063_get_voltage, + .set_value = da9063_set_voltage, + .get_enable = da9063_get_enable, + .set_enable = da9063_set_enable, + .get_mode = ldo_get_mode, + .set_mode = ldo_set_mode, +}; + +U_BOOT_DRIVER(da9063_ldo) = { + .name = DA9063_LDO_DRIVER, + .id = UCLASS_REGULATOR, + .ops = &da9063_ldo_ops, + .probe = da9063_ldo_probe, + .priv_auto_alloc_size = sizeof(struct da9063_priv), +}; + +static const struct dm_regulator_ops da9063_buck_ops = { + .get_value = da9063_get_voltage, + .set_value = da9063_set_voltage, + .get_enable = da9063_get_enable, + .set_enable = da9063_set_enable, + .get_mode = buck_get_mode, + .set_mode = buck_set_mode, + .get_current = buck_get_current_limit, + .set_current = buck_set_current_limit, +}; + +U_BOOT_DRIVER(da9063_buck) = { + .name = DA9063_BUCK_DRIVER, + .id = UCLASS_REGULATOR, + .ops = &da9063_buck_ops, + .probe = da9063_buck_probe, + .priv_auto_alloc_size = sizeof(struct da9063_priv), +}; diff --git a/include/power/da9063_pmic.h b/include/power/da9063_pmic.h index 9b0f76c04f..273a07ef41 100644 --- a/include/power/da9063_pmic.h +++ b/include/power/da9063_pmic.h @@ -305,4 +305,16 @@ #define DA9063_LDO_DRIVER "da9063_ldo" #define DA9063_BUCK_DRIVER "da9063_buck"
+/* Regulator modes */ +enum { + DA9063_LDOMODE_SLEEP, + DA9063_LDOMODE_NORMAL +}; + +enum { + DA9063_BUCKMODE_SLEEP, + DA9063_BUCKMODE_SYNC, + DA9063_BUCKMODE_AUTO, +}; + #endif