[U-Boot, 2/3] power: regulator: add driver for Dialog DA9063 PMIC
Ian Ray
ian.ray at ge.com
Tue Jan 14 16:56:17 CET 2020
From: Martin Fuzzey <martin.fuzzey at 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.
Add an option CONFIG_SPL_DM_REGULATOR_DA9063.
Signed-off-by: Martin Fuzzey <martin.fuzzey at flowbird.group>
Signed-off-by: Robert Beckett <bob.beckett at collabora.com>
---
drivers/power/regulator/Kconfig | 20 ++
drivers/power/regulator/Makefile | 1 +
drivers/power/regulator/da9063.c | 388 +++++++++++++++++++++++++++++++++++++++
include/power/da9063_pmic.h | 12 ++
4 files changed, 421 insertions(+)
create mode 100644 drivers/power/regulator/da9063.c
diff --git a/drivers/power/regulator/Kconfig b/drivers/power/regulator/Kconfig
index 25fc787..d431102 100644
--- a/drivers/power/regulator/Kconfig
+++ b/drivers/power/regulator/Kconfig
@@ -60,6 +60,26 @@ 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 SPL_DM_REGULATOR_DA9063
+ bool "Enable Driver Model for REGULATOR DA9063 in SPL"
+ depends on DM_REGULATOR && DM_PMIC_DA9063 && SPL
+ 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 b611c90..9d58112 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-$(CONFIG_$(SPL_)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 0000000..8990be1
--- /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 at 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 9b0f76c..273a07e 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
--
2.10.1
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