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authorSascha Hauer <s.hauer@pengutronix.de>2019-11-07 14:26:42 +0100
committerSascha Hauer <s.hauer@pengutronix.de>2019-11-07 14:26:42 +0100
commitcd8a909bb3e7af6d905e4b554b10a3bf9718f5c5 (patch)
tree9cc4ccf3fcd9c54d6290f56deeeb32ecf4841641 /drivers/regulator
parent701a6ae36b6c818ff936952576d5e33ed710ddb5 (diff)
parent52cc061f50aa12adcef0a00c9a56eb7c60865a1c (diff)
downloadbarebox-cd8a909bb3e7af6d905e4b554b10a3bf9718f5c5.tar.gz
Merge branch 'for-next/stm32'
Diffstat (limited to 'drivers/regulator')
-rw-r--r--drivers/regulator/Kconfig9
-rw-r--r--drivers/regulator/Makefile4
-rw-r--r--drivers/regulator/helpers.c186
-rw-r--r--drivers/regulator/of_regulator.c229
-rw-r--r--drivers/regulator/stpmic1_regulator.c436
5 files changed, 863 insertions, 1 deletions
diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index c734ef5..28bd69a 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -21,6 +21,15 @@ config REGULATOR_PFUZE
depends on I2C
depends on ARCH_IMX6
+config REGULATOR_STPMIC1
+ tristate "STMicroelectronics STPMIC1 PMIC Regulators"
+ depends on MFD_STPMIC1
+ help
+ This driver supports STMicroelectronics STPMIC1 PMIC voltage
+ regulators and switches. The STPMIC1 regulators supply power to
+ an application processor as well as to external system
+ peripherals such as DDR, Flash memories and system devices.
+
config REGULATOR_ANATOP
tristate "Freescale i.MX on-chip ANATOP LDO regulators"
depends on MFD_SYSCON
diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile
index b2fc5b7..e27e155 100644
--- a/drivers/regulator/Makefile
+++ b/drivers/regulator/Makefile
@@ -1,5 +1,7 @@
obj-$(CONFIG_REGULATOR) += core.o helpers.o
+obj-$(CONFIG_OFDEVICE) += of_regulator.o
obj-$(CONFIG_REGULATOR_FIXED) += fixed.o
obj-$(CONFIG_REGULATOR_BCM283X) += bcm2835.o
obj-$(CONFIG_REGULATOR_PFUZE) += pfuze.o
-obj-$(CONFIG_REGULATOR_ANATOP) += anatop-regulator.o \ No newline at end of file
+obj-$(CONFIG_REGULATOR_STPMIC1) += stpmic1_regulator.o
+obj-$(CONFIG_REGULATOR_ANATOP) += anatop-regulator.o
diff --git a/drivers/regulator/helpers.c b/drivers/regulator/helpers.c
index f22d21b..c4877ce 100644
--- a/drivers/regulator/helpers.c
+++ b/drivers/regulator/helpers.c
@@ -184,3 +184,189 @@ int regulator_list_voltage_linear(struct regulator_dev *rdev,
return rdev->desc->min_uV + (rdev->desc->uV_step * selector);
}
EXPORT_SYMBOL_GPL(regulator_list_voltage_linear);
+
+/**
+ * regulator_desc_list_voltage_linear_range - List voltages for linear ranges
+ *
+ * @desc: Regulator desc for regulator which volatges are to be listed
+ * @selector: Selector to convert into a voltage
+ *
+ * Regulators with a series of simple linear mappings between voltages
+ * and selectors who have set linear_ranges in the regulator descriptor
+ * can use this function prior regulator registration to list voltages.
+ * This is useful when voltages need to be listed during device-tree
+ * parsing.
+ */
+int regulator_desc_list_voltage_linear_range(const struct regulator_desc *desc,
+ unsigned int selector)
+{
+ const struct regulator_linear_range *range;
+ int i;
+
+ if (!desc->n_linear_ranges) {
+ BUG_ON(!desc->n_linear_ranges);
+ return -EINVAL;
+ }
+
+ for (i = 0; i < desc->n_linear_ranges; i++) {
+ range = &desc->linear_ranges[i];
+
+ if (!(selector >= range->min_sel &&
+ selector <= range->max_sel))
+ continue;
+
+ selector -= range->min_sel;
+
+ return range->min_uV + (range->uV_step * selector);
+ }
+
+ return -EINVAL;
+}
+EXPORT_SYMBOL_GPL(regulator_desc_list_voltage_linear_range);
+
+/**
+ * regulator_list_voltage_linear_range - List voltages for linear ranges
+ *
+ * @rdev: Regulator device
+ * @selector: Selector to convert into a voltage
+ *
+ * Regulators with a series of simple linear mappings between voltages
+ * and selectors can set linear_ranges in the regulator descriptor and
+ * then use this function as their list_voltage() operation,
+ */
+int regulator_list_voltage_linear_range(struct regulator_dev *rdev,
+ unsigned int selector)
+{
+ return regulator_desc_list_voltage_linear_range(rdev->desc, selector);
+}
+EXPORT_SYMBOL_GPL(regulator_list_voltage_linear_range);
+
+/**
+ * regulator_map_voltage_linear_range - map_voltage() for multiple linear ranges
+ *
+ * @rdev: Regulator to operate on
+ * @min_uV: Lower bound for voltage
+ * @max_uV: Upper bound for voltage
+ *
+ * Drivers providing linear_ranges in their descriptor can use this as
+ * their map_voltage() callback.
+ */
+int regulator_map_voltage_linear_range(struct regulator_dev *rdev,
+ int min_uV, int max_uV)
+{
+ const struct regulator_linear_range *range;
+ int ret = -EINVAL;
+ int voltage, i;
+
+ if (!rdev->desc->n_linear_ranges) {
+ BUG_ON(!rdev->desc->n_linear_ranges);
+ return -EINVAL;
+ }
+
+ for (i = 0; i < rdev->desc->n_linear_ranges; i++) {
+ int linear_max_uV;
+
+ range = &rdev->desc->linear_ranges[i];
+ linear_max_uV = range->min_uV +
+ (range->max_sel - range->min_sel) * range->uV_step;
+
+ if (!(min_uV <= linear_max_uV && max_uV >= range->min_uV))
+ continue;
+
+ if (min_uV <= range->min_uV)
+ min_uV = range->min_uV;
+
+ /* range->uV_step == 0 means fixed voltage range */
+ if (range->uV_step == 0) {
+ ret = 0;
+ } else {
+ ret = DIV_ROUND_UP(min_uV - range->min_uV,
+ range->uV_step);
+ if (ret < 0)
+ return ret;
+ }
+
+ ret += range->min_sel;
+
+ /*
+ * Map back into a voltage to verify we're still in bounds.
+ * If we are not, then continue checking rest of the ranges.
+ */
+ voltage = rdev->desc->ops->list_voltage(rdev, ret);
+ if (voltage >= min_uV && voltage <= max_uV)
+ break;
+ }
+
+ if (i == rdev->desc->n_linear_ranges)
+ return -EINVAL;
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(regulator_map_voltage_linear_range);
+
+/**
+ * regulator_get_voltage_sel_regmap - standard get_voltage_sel for regmap users
+ *
+ * @rdev: regulator to operate on
+ *
+ * Regulators that use regmap for their register I/O can set the
+ * vsel_reg and vsel_mask fields in their descriptor and then use this
+ * as their get_voltage_vsel operation, saving some code.
+ */
+int regulator_get_voltage_sel_regmap(struct regulator_dev *rdev)
+{
+ unsigned int val;
+ int ret;
+
+ ret = regmap_read(rdev->regmap, rdev->desc->vsel_reg, &val);
+ if (ret != 0)
+ return ret;
+
+ val &= rdev->desc->vsel_mask;
+ val >>= ffs(rdev->desc->vsel_mask) - 1;
+
+ return val;
+}
+EXPORT_SYMBOL_GPL(regulator_get_voltage_sel_regmap);
+
+/**
+ * regulator_map_voltage_iterate - map_voltage() based on list_voltage()
+ *
+ * @rdev: Regulator to operate on
+ * @min_uV: Lower bound for voltage
+ * @max_uV: Upper bound for voltage
+ *
+ * Drivers implementing set_voltage_sel() and list_voltage() can use
+ * this as their map_voltage() operation. It will find a suitable
+ * voltage by calling list_voltage() until it gets something in bounds
+ * for the requested voltages.
+ */
+int regulator_map_voltage_iterate(struct regulator_dev *rdev,
+ int min_uV, int max_uV)
+{
+ int best_val = INT_MAX;
+ int selector = 0;
+ int i, ret;
+
+ /* Find the smallest voltage that falls within the specified
+ * range.
+ */
+ for (i = 0; i < rdev->desc->n_voltages; i++) {
+ ret = rdev->desc->ops->list_voltage(rdev, i);
+ if (ret < 0)
+ continue;
+
+ if (ret < best_val && ret >= min_uV && ret <= max_uV) {
+ best_val = ret;
+ selector = i;
+ }
+ }
+
+ if (best_val != INT_MAX)
+ return selector;
+ else
+ return -EINVAL;
+}
+EXPORT_SYMBOL_GPL(regulator_map_voltage_iterate);
+
+
diff --git a/drivers/regulator/of_regulator.c b/drivers/regulator/of_regulator.c
new file mode 100644
index 0000000..3e8caa8
--- /dev/null
+++ b/drivers/regulator/of_regulator.c
@@ -0,0 +1,229 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * OF helpers for regulator framework
+ *
+ * Copyright (C) 2011 Texas Instruments, Inc.
+ * Rajendra Nayak <rnayak@ti.com>
+ */
+
+#include <common.h>
+#include <of.h>
+#include <linux/regulator/of_regulator.h>
+#include <linux/regulator/machine.h>
+
+static int of_get_regulation_constraints(struct device_d *dev,
+ struct device_node *np,
+ struct regulator_init_data **init_data,
+ const struct regulator_desc *desc)
+{
+ struct regulation_constraints *constraints = &(*init_data)->constraints;
+ int ret;
+ u32 pval;
+
+ constraints->name = of_get_property(np, "regulator-name", NULL);
+
+ if (!of_property_read_u32(np, "regulator-min-microvolt", &pval))
+ constraints->min_uV = pval;
+
+ if (!of_property_read_u32(np, "regulator-max-microvolt", &pval))
+ constraints->max_uV = pval;
+
+ /* Voltage change possible? */
+ if (constraints->min_uV != constraints->max_uV)
+ constraints->valid_ops_mask |= REGULATOR_CHANGE_VOLTAGE;
+
+ /* Do we have a voltage range, if so try to apply it? */
+ if (constraints->min_uV && constraints->max_uV)
+ constraints->apply_uV = true;
+
+ if (!of_property_read_u32(np, "regulator-microvolt-offset", &pval))
+ constraints->uV_offset = pval;
+ if (!of_property_read_u32(np, "regulator-min-microamp", &pval))
+ constraints->min_uA = pval;
+ if (!of_property_read_u32(np, "regulator-max-microamp", &pval))
+ constraints->max_uA = pval;
+
+ if (!of_property_read_u32(np, "regulator-input-current-limit-microamp",
+ &pval))
+ constraints->ilim_uA = pval;
+
+ /* Current change possible? */
+ if (constraints->min_uA != constraints->max_uA)
+ constraints->valid_ops_mask |= REGULATOR_CHANGE_CURRENT;
+
+ constraints->boot_on = of_property_read_bool(np, "regulator-boot-on");
+ constraints->always_on = of_property_read_bool(np, "regulator-always-on");
+ if (!constraints->always_on) /* status change should be possible. */
+ constraints->valid_ops_mask |= REGULATOR_CHANGE_STATUS;
+
+ constraints->pull_down = of_property_read_bool(np, "regulator-pull-down");
+
+ if (of_property_read_bool(np, "regulator-allow-bypass"))
+ constraints->valid_ops_mask |= REGULATOR_CHANGE_BYPASS;
+
+ if (of_property_read_bool(np, "regulator-allow-set-load"))
+ constraints->valid_ops_mask |= REGULATOR_CHANGE_DRMS;
+
+ ret = of_property_read_u32(np, "regulator-ramp-delay", &pval);
+ if (!ret) {
+ if (pval)
+ constraints->ramp_delay = pval;
+ else
+ constraints->ramp_disable = true;
+ }
+
+ ret = of_property_read_u32(np, "regulator-settling-time-us", &pval);
+ if (!ret)
+ constraints->settling_time = pval;
+
+ ret = of_property_read_u32(np, "regulator-settling-time-up-us", &pval);
+ if (!ret)
+ constraints->settling_time_up = pval;
+ if (constraints->settling_time_up && constraints->settling_time) {
+ pr_warn("%pOFn: ambiguous configuration for settling time, ignoring 'regulator-settling-time-up-us'\n",
+ np);
+ constraints->settling_time_up = 0;
+ }
+
+ ret = of_property_read_u32(np, "regulator-settling-time-down-us",
+ &pval);
+ if (!ret)
+ constraints->settling_time_down = pval;
+ if (constraints->settling_time_down && constraints->settling_time) {
+ pr_warn("%pOFn: ambiguous configuration for settling time, ignoring 'regulator-settling-time-down-us'\n",
+ np);
+ constraints->settling_time_down = 0;
+ }
+
+ ret = of_property_read_u32(np, "regulator-enable-ramp-delay", &pval);
+ if (!ret)
+ constraints->enable_time = pval;
+
+ constraints->soft_start = of_property_read_bool(np,
+ "regulator-soft-start");
+ ret = of_property_read_u32(np, "regulator-active-discharge", &pval);
+ if (!ret) {
+ constraints->active_discharge =
+ (pval) ? REGULATOR_ACTIVE_DISCHARGE_ENABLE :
+ REGULATOR_ACTIVE_DISCHARGE_DISABLE;
+ }
+
+ if (!of_property_read_u32(np, "regulator-system-load", &pval))
+ constraints->system_load = pval;
+
+ if (!of_property_read_u32(np, "regulator-max-step-microvolt",
+ &pval))
+ constraints->max_uV_step = pval;
+
+ constraints->over_current_protection = of_property_read_bool(np,
+ "regulator-over-current-protection");
+
+ return 0;
+}
+
+/**
+ * of_get_regulator_init_data - extract regulator_init_data structure info
+ * @dev: device requesting for regulator_init_data
+ * @node: regulator device node
+ * @desc: regulator description
+ *
+ * Populates regulator_init_data structure by extracting data from device
+ * tree node, returns a pointer to the populated structure or NULL if memory
+ * alloc fails.
+ */
+struct regulator_init_data *of_get_regulator_init_data(struct device_d *dev,
+ struct device_node *node,
+ const struct regulator_desc *desc)
+{
+ struct regulator_init_data *init_data;
+
+ if (!node)
+ return NULL;
+
+ init_data = xzalloc(sizeof(*init_data));
+
+ if (of_get_regulation_constraints(dev, node, &init_data, desc))
+ return NULL;
+
+ return init_data;
+}
+EXPORT_SYMBOL_GPL(of_get_regulator_init_data);
+
+struct devm_of_regulator_matches {
+ struct of_regulator_match *matches;
+ unsigned int num_matches;
+};
+
+/**
+ * of_regulator_match - extract multiple regulator init data from device tree.
+ * @dev: device requesting the data
+ * @node: parent device node of the regulators
+ * @matches: match table for the regulators
+ * @num_matches: number of entries in match table
+ *
+ * This function uses a match table specified by the regulator driver to
+ * parse regulator init data from the device tree. @node is expected to
+ * contain a set of child nodes, each providing the init data for one
+ * regulator. The data parsed from a child node will be matched to a regulator
+ * based on either the deprecated property regulator-compatible if present,
+ * or otherwise the child node's name. Note that the match table is modified
+ * in place and an additional of_node reference is taken for each matched
+ * regulator.
+ *
+ * Returns the number of matches found or a negative error code on failure.
+ */
+int of_regulator_match(struct device_d *dev, struct device_node *node,
+ struct of_regulator_match *matches,
+ unsigned int num_matches)
+{
+ unsigned int count = 0;
+ unsigned int i;
+ const char *name;
+ struct device_node *child;
+ struct devm_of_regulator_matches *devm_matches;
+
+ if (!dev || !node)
+ return -EINVAL;
+
+ devm_matches = xzalloc(sizeof(struct devm_of_regulator_matches));
+
+ devm_matches->matches = matches;
+ devm_matches->num_matches = num_matches;
+
+ for (i = 0; i < num_matches; i++) {
+ struct of_regulator_match *match = &matches[i];
+ match->init_data = NULL;
+ match->of_node = NULL;
+ }
+
+ for_each_child_of_node(node, child) {
+ name = of_get_property(child,
+ "regulator-compatible", NULL);
+ if (!name)
+ name = child->name;
+
+ for (i = 0; i < num_matches; i++) {
+ struct of_regulator_match *match = &matches[i];
+ if (match->of_node)
+ continue;
+
+ if (strcmp(match->name, name))
+ continue;
+
+ match->init_data = of_get_regulator_init_data(dev, child,
+ match->desc);
+ if (!match->init_data) {
+ dev_err(dev,
+ "failed to parse DT for regulator %pOFn\n",
+ child);
+ return -EINVAL;
+ }
+ match->of_node = child;
+ count++;
+ break;
+ }
+ }
+
+ return count;
+}
+EXPORT_SYMBOL_GPL(of_regulator_match);
diff --git a/drivers/regulator/stpmic1_regulator.c b/drivers/regulator/stpmic1_regulator.c
new file mode 100644
index 0000000..aaaba09
--- /dev/null
+++ b/drivers/regulator/stpmic1_regulator.c
@@ -0,0 +1,436 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) STMicroelectronics 2018
+// Author: Pascal Paillet <p.paillet@st.com> for STMicroelectronics.
+
+#include <common.h>
+#include <init.h>
+#include <of_device.h>
+#include <regmap.h>
+#include <linux/regulator/of_regulator.h>
+#include <regulator.h>
+#include <linux/mfd/stpmic1.h>
+
+#include <dt-bindings/mfd/st,stpmic1.h>
+
+/**
+ * stpmic1 regulator description: this structure is used as driver data
+ * @desc: regulator framework description
+ * @mask_reset_reg: mask reset register address
+ * @mask_reset_mask: mask rank and mask reset register mask
+ * @icc_reg: icc register address
+ * @icc_mask: icc register mask
+ */
+struct stpmic1_regulator_cfg {
+ struct device_d *dev;
+ struct regulator_dev rdev;
+ struct regulator_desc desc;
+ u8 mask_reset_reg;
+ u8 mask_reset_mask;
+ u8 icc_reg;
+ u8 icc_mask;
+};
+
+enum {
+ STPMIC1_BUCK1 = 0,
+ STPMIC1_BUCK2 = 1,
+ STPMIC1_BUCK3 = 2,
+ STPMIC1_BUCK4 = 3,
+ STPMIC1_LDO1 = 4,
+ STPMIC1_LDO2 = 5,
+ STPMIC1_LDO3 = 6,
+ STPMIC1_LDO4 = 7,
+ STPMIC1_LDO5 = 8,
+ STPMIC1_LDO6 = 9,
+ STPMIC1_VREF_DDR = 10,
+ STPMIC1_BOOST = 11,
+ STPMIC1_VBUS_OTG = 12,
+ STPMIC1_SW_OUT = 13,
+};
+
+/* Enable time worst case is 5000mV/(2250uV/uS) */
+#define PMIC_ENABLE_TIME_US 2200
+
+static const struct regulator_linear_range buck1_ranges[] = {
+ REGULATOR_LINEAR_RANGE(725000, 0, 4, 0),
+ REGULATOR_LINEAR_RANGE(725000, 5, 36, 25000),
+ REGULATOR_LINEAR_RANGE(1500000, 37, 63, 0),
+};
+
+static const struct regulator_linear_range buck2_ranges[] = {
+ REGULATOR_LINEAR_RANGE(1000000, 0, 17, 0),
+ REGULATOR_LINEAR_RANGE(1050000, 18, 19, 0),
+ REGULATOR_LINEAR_RANGE(1100000, 20, 21, 0),
+ REGULATOR_LINEAR_RANGE(1150000, 22, 23, 0),
+ REGULATOR_LINEAR_RANGE(1200000, 24, 25, 0),
+ REGULATOR_LINEAR_RANGE(1250000, 26, 27, 0),
+ REGULATOR_LINEAR_RANGE(1300000, 28, 29, 0),
+ REGULATOR_LINEAR_RANGE(1350000, 30, 31, 0),
+ REGULATOR_LINEAR_RANGE(1400000, 32, 33, 0),
+ REGULATOR_LINEAR_RANGE(1450000, 34, 35, 0),
+ REGULATOR_LINEAR_RANGE(1500000, 36, 63, 0),
+};
+
+static const struct regulator_linear_range buck3_ranges[] = {
+ REGULATOR_LINEAR_RANGE(1000000, 0, 19, 0),
+ REGULATOR_LINEAR_RANGE(1100000, 20, 23, 0),
+ REGULATOR_LINEAR_RANGE(1200000, 24, 27, 0),
+ REGULATOR_LINEAR_RANGE(1300000, 28, 31, 0),
+ REGULATOR_LINEAR_RANGE(1400000, 32, 35, 0),
+ REGULATOR_LINEAR_RANGE(1500000, 36, 55, 100000),
+ REGULATOR_LINEAR_RANGE(3400000, 56, 63, 0),
+};
+
+static const struct regulator_linear_range buck4_ranges[] = {
+ REGULATOR_LINEAR_RANGE(600000, 0, 27, 25000),
+ REGULATOR_LINEAR_RANGE(1300000, 28, 29, 0),
+ REGULATOR_LINEAR_RANGE(1350000, 30, 31, 0),
+ REGULATOR_LINEAR_RANGE(1400000, 32, 33, 0),
+ REGULATOR_LINEAR_RANGE(1450000, 34, 35, 0),
+ REGULATOR_LINEAR_RANGE(1500000, 36, 60, 100000),
+ REGULATOR_LINEAR_RANGE(3900000, 61, 63, 0),
+};
+
+static const struct regulator_linear_range ldo1_ranges[] = {
+ REGULATOR_LINEAR_RANGE(1700000, 0, 7, 0),
+ REGULATOR_LINEAR_RANGE(1700000, 8, 24, 100000),
+ REGULATOR_LINEAR_RANGE(3300000, 25, 31, 0),
+};
+
+static const struct regulator_linear_range ldo2_ranges[] = {
+ REGULATOR_LINEAR_RANGE(1700000, 0, 7, 0),
+ REGULATOR_LINEAR_RANGE(1700000, 8, 24, 100000),
+ REGULATOR_LINEAR_RANGE(3300000, 25, 30, 0),
+};
+
+static const struct regulator_linear_range ldo3_ranges[] = {
+ REGULATOR_LINEAR_RANGE(1700000, 0, 7, 0),
+ REGULATOR_LINEAR_RANGE(1700000, 8, 24, 100000),
+ REGULATOR_LINEAR_RANGE(3300000, 25, 30, 0),
+ /* with index 31 LDO3 is in DDR mode */
+ REGULATOR_LINEAR_RANGE(500000, 31, 31, 0),
+};
+
+static const struct regulator_linear_range ldo5_ranges[] = {
+ REGULATOR_LINEAR_RANGE(1700000, 0, 7, 0),
+ REGULATOR_LINEAR_RANGE(1700000, 8, 30, 100000),
+ REGULATOR_LINEAR_RANGE(3900000, 31, 31, 0),
+};
+
+static const struct regulator_linear_range ldo6_ranges[] = {
+ REGULATOR_LINEAR_RANGE(900000, 0, 24, 100000),
+ REGULATOR_LINEAR_RANGE(3300000, 25, 31, 0),
+};
+
+static const struct regulator_ops stpmic1_ldo_ops = {
+ .list_voltage = regulator_list_voltage_linear_range,
+ .map_voltage = regulator_map_voltage_linear_range,
+ .is_enabled = regulator_is_enabled_regmap,
+ .enable = regulator_enable_regmap,
+ .disable = regulator_disable_regmap,
+ .set_voltage_sel = regulator_set_voltage_sel_regmap,
+};
+
+static const struct regulator_ops stpmic1_ldo3_ops = {
+ .list_voltage = regulator_list_voltage_linear_range,
+ .map_voltage = regulator_map_voltage_iterate,
+ .is_enabled = regulator_is_enabled_regmap,
+ .enable = regulator_enable_regmap,
+ .disable = regulator_disable_regmap,
+ .set_voltage_sel = regulator_set_voltage_sel_regmap,
+};
+
+static const struct regulator_ops stpmic1_ldo4_fixed_regul_ops = {
+ .is_enabled = regulator_is_enabled_regmap,
+ .enable = regulator_enable_regmap,
+ .disable = regulator_disable_regmap,
+};
+
+static const struct regulator_ops stpmic1_buck_ops = {
+ .list_voltage = regulator_list_voltage_linear_range,
+ .map_voltage = regulator_map_voltage_linear_range,
+ .is_enabled = regulator_is_enabled_regmap,
+ .enable = regulator_enable_regmap,
+ .disable = regulator_disable_regmap,
+ .set_voltage_sel = regulator_set_voltage_sel_regmap,
+};
+
+static const struct regulator_ops stpmic1_vref_ddr_ops = {
+ .is_enabled = regulator_is_enabled_regmap,
+ .enable = regulator_enable_regmap,
+ .disable = regulator_disable_regmap,
+};
+
+static const struct regulator_ops stpmic1_boost_regul_ops = {
+ .is_enabled = regulator_is_enabled_regmap,
+ .enable = regulator_enable_regmap,
+ .disable = regulator_disable_regmap,
+};
+
+static const struct regulator_ops stpmic1_switch_regul_ops = {
+ .is_enabled = regulator_is_enabled_regmap,
+ .enable = regulator_enable_regmap,
+ .disable = regulator_disable_regmap,
+};
+
+#define REG_LDO(ids, base) { \
+ .n_voltages = 32, \
+ .ops = &stpmic1_ldo_ops, \
+ .linear_ranges = base ## _ranges, \
+ .n_linear_ranges = ARRAY_SIZE(base ## _ranges), \
+ .vsel_reg = ids##_ACTIVE_CR, \
+ .vsel_mask = LDO_VOLTAGE_MASK, \
+ .enable_reg = ids##_ACTIVE_CR, \
+ .enable_mask = LDO_ENABLE_MASK, \
+ .enable_val = 1, \
+ .disable_val = 0, \
+}
+
+#define REG_LDO3(ids, base) { \
+ .n_voltages = 32, \
+ .ops = &stpmic1_ldo3_ops, \
+ .linear_ranges = ldo3_ranges, \
+ .n_linear_ranges = ARRAY_SIZE(ldo3_ranges), \
+ .vsel_reg = LDO3_ACTIVE_CR, \
+ .vsel_mask = LDO_VOLTAGE_MASK, \
+ .enable_reg = LDO3_ACTIVE_CR, \
+ .enable_mask = LDO_ENABLE_MASK, \
+ .enable_val = 1, \
+ .disable_val = 0, \
+}
+
+#define REG_LDO4(ids, base) { \
+ .n_voltages = 1, \
+ .ops = &stpmic1_ldo4_fixed_regul_ops, \
+ .min_uV = 3300000, \
+ .enable_reg = LDO4_ACTIVE_CR, \
+ .enable_mask = LDO_ENABLE_MASK, \
+ .enable_val = 1, \
+ .disable_val = 0, \
+}
+
+#define REG_BUCK(ids, base) { \
+ .ops = &stpmic1_buck_ops, \
+ .n_voltages = 64, \
+ .linear_ranges = base ## _ranges, \
+ .n_linear_ranges = ARRAY_SIZE(base ## _ranges), \
+ .vsel_reg = ids##_ACTIVE_CR, \
+ .vsel_mask = BUCK_VOLTAGE_MASK, \
+ .enable_reg = ids##_ACTIVE_CR, \
+ .enable_mask = BUCK_ENABLE_MASK, \
+ .enable_val = 1, \
+ .disable_val = 0, \
+}
+
+#define REG_VREF_DDR(ids, base) { \
+ .n_voltages = 1, \
+ .ops = &stpmic1_vref_ddr_ops, \
+ .min_uV = 500000, \
+ .enable_reg = VREF_DDR_ACTIVE_CR, \
+ .enable_mask = BUCK_ENABLE_MASK, \
+ .enable_val = 1, \
+ .disable_val = 0, \
+}
+
+#define REG_BOOST(ids, base) { \
+ .n_voltages = 1, \
+ .ops = &stpmic1_boost_regul_ops, \
+ .min_uV = 0, \
+ .enable_reg = BST_SW_CR, \
+ .enable_mask = BOOST_ENABLED, \
+ .enable_val = BOOST_ENABLED, \
+ .disable_val = 0, \
+}
+
+#define REG_VBUS_OTG(ids, base) { \
+ .n_voltages = 1, \
+ .ops = &stpmic1_switch_regul_ops, \
+ .min_uV = 0, \
+ .enable_reg = BST_SW_CR, \
+ .enable_mask = USBSW_OTG_SWITCH_ENABLED, \
+ .enable_val = USBSW_OTG_SWITCH_ENABLED, \
+ .disable_val = 0, \
+}
+
+#define REG_SW_OUT(ids, base) { \
+ .n_voltages = 1, \
+ .ops = &stpmic1_switch_regul_ops, \
+ .min_uV = 0, \
+ .enable_reg = BST_SW_CR, \
+ .enable_mask = SWIN_SWOUT_ENABLED, \
+ .enable_val = SWIN_SWOUT_ENABLED, \
+ .disable_val = 0, \
+}
+
+static struct stpmic1_regulator_cfg stpmic1_regulator_cfgs[] = {
+ [STPMIC1_BUCK1] = {
+ .desc = REG_BUCK(BUCK1, buck1),
+ .icc_reg = BUCKS_ICCTO_CR,
+ .icc_mask = BIT(0),
+ .mask_reset_reg = BUCKS_MASK_RESET_CR,
+ .mask_reset_mask = BIT(0),
+ },
+ [STPMIC1_BUCK2] = {
+ .desc = REG_BUCK(BUCK2, buck2),
+ .icc_reg = BUCKS_ICCTO_CR,
+ .icc_mask = BIT(1),
+ .mask_reset_reg = BUCKS_MASK_RESET_CR,
+ .mask_reset_mask = BIT(1),
+ },
+ [STPMIC1_BUCK3] = {
+ .desc = REG_BUCK(BUCK3, buck3),
+ .icc_reg = BUCKS_ICCTO_CR,
+ .icc_mask = BIT(2),
+ .mask_reset_reg = BUCKS_MASK_RESET_CR,
+ .mask_reset_mask = BIT(2),
+ },
+ [STPMIC1_BUCK4] = {
+ .desc = REG_BUCK(BUCK4, buck4),
+ .icc_reg = BUCKS_ICCTO_CR,
+ .icc_mask = BIT(3),
+ .mask_reset_reg = BUCKS_MASK_RESET_CR,
+ .mask_reset_mask = BIT(3),
+ },
+ [STPMIC1_LDO1] = {
+ .desc = REG_LDO(LDO1, ldo1),
+ .icc_reg = LDOS_ICCTO_CR,
+ .icc_mask = BIT(0),
+ .mask_reset_reg = LDOS_MASK_RESET_CR,
+ .mask_reset_mask = BIT(0),
+ },
+ [STPMIC1_LDO2] = {
+ .desc = REG_LDO(LDO2, ldo2),
+ .icc_reg = LDOS_ICCTO_CR,
+ .icc_mask = BIT(1),
+ .mask_reset_reg = LDOS_MASK_RESET_CR,
+ .mask_reset_mask = BIT(1),
+ },
+ [STPMIC1_LDO3] = {
+ .desc = REG_LDO3(LDO3, ldo3),
+ .icc_reg = LDOS_ICCTO_CR,
+ .icc_mask = BIT(2),
+ .mask_reset_reg = LDOS_MASK_RESET_CR,
+ .mask_reset_mask = BIT(2),
+ },
+ [STPMIC1_LDO4] = {
+ .desc = REG_LDO4(LDO4, ldo4),
+ .icc_reg = LDOS_ICCTO_CR,
+ .icc_mask = BIT(3),
+ .mask_reset_reg = LDOS_MASK_RESET_CR,
+ .mask_reset_mask = BIT(3),
+ },
+ [STPMIC1_LDO5] = {
+ .desc = REG_LDO(LDO5, ldo5),
+ .icc_reg = LDOS_ICCTO_CR,
+ .icc_mask = BIT(4),
+ .mask_reset_reg = LDOS_MASK_RESET_CR,
+ .mask_reset_mask = BIT(4),
+ },
+ [STPMIC1_LDO6] = {
+ .desc = REG_LDO(LDO6, ldo6),
+ .icc_reg = LDOS_ICCTO_CR,
+ .icc_mask = BIT(5),
+ .mask_reset_reg = LDOS_MASK_RESET_CR,
+ .mask_reset_mask = BIT(5),
+ },
+ [STPMIC1_VREF_DDR] = {
+ .desc = REG_VREF_DDR(VREF_DDR, vref_ddr),
+ .mask_reset_reg = LDOS_MASK_RESET_CR,
+ .mask_reset_mask = BIT(6),
+ },
+ [STPMIC1_BOOST] = {
+ .desc = REG_BOOST(BOOST, boost),
+ .icc_reg = BUCKS_ICCTO_CR,
+ .icc_mask = BIT(6),
+ },
+ [STPMIC1_VBUS_OTG] = {
+ .desc = REG_VBUS_OTG(VBUS_OTG, pwr_sw1),
+ .icc_reg = BUCKS_ICCTO_CR,
+ .icc_mask = BIT(4),
+ },
+ [STPMIC1_SW_OUT] = {
+ .desc = REG_SW_OUT(SW_OUT, pwr_sw2),
+ .icc_reg = BUCKS_ICCTO_CR,
+ .icc_mask = BIT(5),
+ },
+};
+
+#define MATCH(_name, _id) \
+ [STPMIC1_##_id] = { \
+ .name = #_name, \
+ .desc = &stpmic1_regulator_cfgs[STPMIC1_##_id].desc, \
+ }
+
+static struct of_regulator_match stpmic1_matches[] = {
+ MATCH(buck1, BUCK1),
+ MATCH(buck2, BUCK2),
+ MATCH(buck3, BUCK3),
+ MATCH(buck4, BUCK4),
+ MATCH(ldo1, LDO1),
+ MATCH(ldo2, LDO2),
+ MATCH(ldo3, LDO3),
+ MATCH(ldo4, LDO4),
+ MATCH(ldo5, LDO5),
+ MATCH(ldo6, LDO6),
+ MATCH(vref_ddr, VREF_DDR),
+ MATCH(boost, BOOST),
+ MATCH(pwr_sw1, VBUS_OTG),
+ MATCH(pwr_sw2, SW_OUT),
+};
+
+static int stpmic1_regulator_register(struct device_d *dev, int id,
+ struct of_regulator_match *match,
+ struct stpmic1_regulator_cfg *cfg)
+{
+ int ret;
+
+ cfg->dev = dev;
+ cfg->rdev.desc = &cfg->desc;
+ cfg->rdev.regmap = dev_get_regmap(dev->parent, NULL);
+ if (IS_ERR(cfg->rdev.regmap))
+ return PTR_ERR(cfg->rdev.regmap);
+
+ ret = of_regulator_register(&cfg->rdev, match->of_node);
+ if (ret) {
+ dev_err(dev, "failed to register %s regulator\n", match->name);
+ return ret;
+ }
+
+ dev_dbg(dev, "registered %s\n", match->name);
+
+ return 0;
+}
+
+static int stpmic1_regulator_probe(struct device_d *dev)
+{
+ int i, ret;
+
+ ret = of_regulator_match(dev, dev->device_node, stpmic1_matches,
+ ARRAY_SIZE(stpmic1_matches));
+ if (ret < 0) {
+ dev_err(dev, "Error in PMIC regulator device tree node");
+ return ret;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(stpmic1_regulator_cfgs); i++) {
+ ret = stpmic1_regulator_register(dev, i, &stpmic1_matches[i],
+ &stpmic1_regulator_cfgs[i]);
+ if (ret < 0)
+ return ret;
+ }
+
+ dev_dbg(dev, "probed\n");
+
+ return 0;
+}
+
+static __maybe_unused const struct of_device_id stpmic1_regulator_of_match[] = {
+ { .compatible = "st,stpmic1-regulators" },
+ { /* sentinel */ },
+};
+
+static struct driver_d stpmic1_regulator_driver = {
+ .name = "stpmic1-regulator",
+ .probe = stpmic1_regulator_probe,
+ .of_compatible = DRV_OF_COMPAT(stpmic1_regulator_of_match),
+};
+device_platform_driver(stpmic1_regulator_driver);