[U-Boot] [PATCH v2 40/41] power: regulator: add driver for Dialog DA9063 PMIC
Robert Beckett
bob.beckett at collabora.com
Wed Oct 30 14:37:31 UTC 2019
On Wed, 2019-10-30 at 14:15 +0000, Schrempf Frieder wrote:
> Hi Robert,
>
> On 23.10.19 20:22, Robert Beckett wrote:
> > 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.
> >
> > Signed-off-by: Martin Fuzzey <martin.fuzzey at flowbird.group>
> > Signed-off-by: Robert Beckett <bob.beckett at 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
>
> Can you please change this to "obj-
> $(CONFIG_$(SPL_)DM_REGULATOR_DA9063)"
> and add an option CONFIG_SPL_DM_REGULATOR_DA9063 to Kconfig?
> This will allow us to enable the driver for SPL and U-Boot proper
> separately.
>
> Thanks,
> Frieder
>
Thanks for the review Frieder.
I was asked to split this series in to multiple smaller series, which I
have done.
The resend of this PMIC driver is currently queued for sending behind
the i2c addressing mode changes in a different series, so Ill make this
update in my queue and send it out once the prerequisites are accepted.
> > 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 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 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
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