summaryrefslogtreecommitdiffstats
path: root/drivers/regulator
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/regulator')
-rw-r--r--drivers/regulator/88pg86x.c114
-rw-r--r--drivers/regulator/Kconfig9
-rw-r--r--drivers/regulator/Makefile1
-rw-r--r--drivers/regulator/core.c3
-rw-r--r--drivers/regulator/of_regulator.c1
-rw-r--r--drivers/regulator/qcom_smd-regulator.c123
-rw-r--r--drivers/regulator/stm32-vrefbuf.c2
7 files changed, 249 insertions, 4 deletions
diff --git a/drivers/regulator/88pg86x.c b/drivers/regulator/88pg86x.c
new file mode 100644
index 000000000000..d5ef55c81185
--- /dev/null
+++ b/drivers/regulator/88pg86x.c
@@ -0,0 +1,114 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <linux/of.h>
+#include <linux/regulator/driver.h>
+#include <linux/regmap.h>
+
+static const struct regulator_ops pg86x_ops = {
+ .set_voltage_sel = regulator_set_voltage_sel_regmap,
+ .get_voltage_sel = regulator_get_voltage_sel_regmap,
+ .list_voltage = regulator_list_voltage_linear_range,
+};
+
+static const struct regulator_linear_range pg86x_buck1_ranges[] = {
+ REGULATOR_LINEAR_RANGE( 0, 0, 10, 0),
+ REGULATOR_LINEAR_RANGE(1000000, 11, 34, 25000),
+ REGULATOR_LINEAR_RANGE(1600000, 35, 47, 50000),
+};
+
+static const struct regulator_linear_range pg86x_buck2_ranges[] = {
+ REGULATOR_LINEAR_RANGE( 0, 0, 15, 0),
+ REGULATOR_LINEAR_RANGE(1000000, 16, 39, 25000),
+ REGULATOR_LINEAR_RANGE(1600000, 40, 52, 50000),
+};
+
+static const struct regulator_desc pg86x_regulators[] = {
+ {
+ .id = 0,
+ .type = REGULATOR_VOLTAGE,
+ .name = "buck1",
+ .of_match = of_match_ptr("buck1"),
+ .n_voltages = 11 + 24 + 13,
+ .linear_ranges = pg86x_buck1_ranges,
+ .n_linear_ranges = 3,
+ .vsel_reg = 0x24,
+ .vsel_mask = 0xff,
+ .ops = &pg86x_ops,
+ .owner = THIS_MODULE
+ },
+ {
+ .id = 1,
+ .type = REGULATOR_VOLTAGE,
+ .name = "buck2",
+ .of_match = of_match_ptr("buck2"),
+ .n_voltages = 16 + 24 + 13,
+ .linear_ranges = pg86x_buck2_ranges,
+ .n_linear_ranges = 3,
+ .vsel_reg = 0x13,
+ .vsel_mask = 0xff,
+ .ops = &pg86x_ops,
+ .owner = THIS_MODULE
+ },
+};
+
+static const struct regmap_config pg86x_regmap = {
+ .reg_bits = 8,
+ .val_bits = 8,
+};
+
+static int pg86x_i2c_probe(struct i2c_client *i2c)
+{
+ int id, ret;
+ struct regulator_config config = {.dev = &i2c->dev};
+ struct regmap *regmap = devm_regmap_init_i2c(i2c, &pg86x_regmap);
+
+ if (IS_ERR(regmap)) {
+ ret = PTR_ERR(regmap);
+ dev_err(&i2c->dev, "regmap init failed: %d\n", ret);
+ return ret;
+ }
+
+ for (id = 0; id < ARRAY_SIZE(pg86x_regulators); id++) {
+ struct regulator_dev *rdev;
+ rdev = devm_regulator_register(&i2c->dev,
+ &pg86x_regulators[id],
+ &config);
+ if (IS_ERR(rdev)) {
+ ret = PTR_ERR(rdev);
+ dev_err(&i2c->dev, "failed to register %s: %d\n",
+ pg86x_regulators[id].name, ret);
+ return ret;
+ }
+ }
+ return 0;
+}
+
+static const struct of_device_id pg86x_dt_ids [] = {
+ { .compatible = "marvell,88pg867" },
+ { .compatible = "marvell,88pg868" },
+ { }
+};
+MODULE_DEVICE_TABLE(of, pg86x_dt_ids);
+
+static const struct i2c_device_id pg86x_i2c_id[] = {
+ { "88pg867", },
+ { "88pg868", },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, pg86x_i2c_id);
+
+static struct i2c_driver pg86x_regulator_driver = {
+ .driver = {
+ .name = "88pg86x",
+ .of_match_table = of_match_ptr(pg86x_dt_ids),
+ },
+ .probe_new = pg86x_i2c_probe,
+ .id_table = pg86x_i2c_id,
+};
+
+module_i2c_driver(pg86x_regulator_driver);
+
+MODULE_DESCRIPTION("Marvell 88PG86X voltage regulator");
+MODULE_AUTHOR("Alexander Monakov <amonakov@gmail.com>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index b27417ca188a..097f61784a7d 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -54,6 +54,15 @@ config REGULATOR_USERSPACE_CONSUMER
If unsure, say no.
+config REGULATOR_88PG86X
+ tristate "Marvell 88PG86X voltage regulators"
+ depends on I2C
+ select REGMAP_I2C
+ help
+ This driver supports Marvell 88PG867 and 88PG868 voltage regulators.
+ They provide two I2C-controlled DC/DC step-down converters with
+ sleep mode and separate enable pins.
+
config REGULATOR_88PM800
tristate "Marvell 88PM800 Power regulators"
depends on MFD_88PM800
diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile
index 19fea09ba10a..590674fbecd7 100644
--- a/drivers/regulator/Makefile
+++ b/drivers/regulator/Makefile
@@ -10,6 +10,7 @@ obj-$(CONFIG_REGULATOR_FIXED_VOLTAGE) += fixed.o
obj-$(CONFIG_REGULATOR_VIRTUAL_CONSUMER) += virtual.o
obj-$(CONFIG_REGULATOR_USERSPACE_CONSUMER) += userspace-consumer.o
+obj-$(CONFIG_REGULATOR_88PG86X) += 88pg86x.o
obj-$(CONFIG_REGULATOR_88PM800) += 88pm800.o
obj-$(CONFIG_REGULATOR_88PM8607) += 88pm8607.o
obj-$(CONFIG_REGULATOR_CPCAP) += cpcap-regulator.o
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 4549b93b0ff9..d4803460a557 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -4308,6 +4308,7 @@ static int regulator_suspend_late(struct device *dev)
return class_for_each_device(&regulator_class, NULL, &state,
_regulator_suspend_late);
}
+
static int _regulator_resume_early(struct device *dev, void *data)
{
int ret = 0;
@@ -4317,7 +4318,7 @@ static int _regulator_resume_early(struct device *dev, void *data)
rstate = regulator_get_suspend_state(rdev, *state);
if (rstate == NULL)
- return -EINVAL;
+ return 0;
mutex_lock(&rdev->mutex);
diff --git a/drivers/regulator/of_regulator.c b/drivers/regulator/of_regulator.c
index 092ed6efb3ec..f47264fa1940 100644
--- a/drivers/regulator/of_regulator.c
+++ b/drivers/regulator/of_regulator.c
@@ -321,6 +321,7 @@ int of_regulator_match(struct device *dev, struct device_node *node,
dev_err(dev,
"failed to parse DT for regulator %s\n",
child->name);
+ of_node_put(child);
return -EINVAL;
}
match->of_node = of_node_get(child);
diff --git a/drivers/regulator/qcom_smd-regulator.c b/drivers/regulator/qcom_smd-regulator.c
index 940fe1b78411..fe2fb36803e0 100644
--- a/drivers/regulator/qcom_smd-regulator.c
+++ b/drivers/regulator/qcom_smd-regulator.c
@@ -17,8 +17,6 @@
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
-#include <linux/regulator/machine.h>
-#include <linux/regulator/of_regulator.h>
#include <linux/soc/qcom/smd-rpm.h>
struct qcom_rpm_reg {
@@ -165,6 +163,15 @@ static const struct regulator_ops rpm_switch_ops = {
.is_enabled = rpm_reg_is_enabled,
};
+static const struct regulator_ops rpm_bob_ops = {
+ .enable = rpm_reg_enable,
+ .disable = rpm_reg_disable,
+ .is_enabled = rpm_reg_is_enabled,
+
+ .get_voltage = rpm_reg_get_voltage,
+ .set_voltage = rpm_reg_set_voltage,
+};
+
static const struct regulator_desc pma8084_hfsmps = {
.linear_ranges = (struct regulator_linear_range[]) {
REGULATOR_LINEAR_RANGE(375000, 0, 95, 12500),
@@ -355,6 +362,64 @@ static const struct regulator_desc pm8994_lnldo = {
.ops = &rpm_smps_ldo_ops_fixed,
};
+static const struct regulator_desc pm8998_ftsmps = {
+ .linear_ranges = (struct regulator_linear_range[]) {
+ REGULATOR_LINEAR_RANGE(320000, 0, 258, 4000),
+ },
+ .n_linear_ranges = 1,
+ .n_voltages = 259,
+ .ops = &rpm_smps_ldo_ops,
+};
+
+static const struct regulator_desc pm8998_hfsmps = {
+ .linear_ranges = (struct regulator_linear_range[]) {
+ REGULATOR_LINEAR_RANGE(320000, 0, 215, 8000),
+ },
+ .n_linear_ranges = 1,
+ .n_voltages = 216,
+ .ops = &rpm_smps_ldo_ops,
+};
+
+static const struct regulator_desc pm8998_nldo = {
+ .linear_ranges = (struct regulator_linear_range[]) {
+ REGULATOR_LINEAR_RANGE(312000, 0, 127, 8000),
+ },
+ .n_linear_ranges = 1,
+ .n_voltages = 128,
+ .ops = &rpm_smps_ldo_ops,
+};
+
+static const struct regulator_desc pm8998_pldo = {
+ .linear_ranges = (struct regulator_linear_range[]) {
+ REGULATOR_LINEAR_RANGE(1664000, 0, 255, 8000),
+ },
+ .n_linear_ranges = 1,
+ .n_voltages = 256,
+ .ops = &rpm_smps_ldo_ops,
+};
+
+static const struct regulator_desc pm8998_pldo_lv = {
+ .linear_ranges = (struct regulator_linear_range[]) {
+ REGULATOR_LINEAR_RANGE(1256000, 0, 127, 8000),
+ },
+ .n_linear_ranges = 1,
+ .n_voltages = 128,
+ .ops = &rpm_smps_ldo_ops,
+};
+
+static const struct regulator_desc pm8998_switch = {
+ .ops = &rpm_switch_ops,
+};
+
+static const struct regulator_desc pmi8998_bob = {
+ .linear_ranges = (struct regulator_linear_range[]) {
+ REGULATOR_LINEAR_RANGE(1824000, 0, 83, 32000),
+ },
+ .n_linear_ranges = 1,
+ .n_voltages = 84,
+ .ops = &rpm_bob_ops,
+};
+
struct rpm_regulator_data {
const char *name;
u32 type;
@@ -544,12 +609,66 @@ static const struct rpm_regulator_data rpm_pm8994_regulators[] = {
{}
};
+static const struct rpm_regulator_data rpm_pm8998_regulators[] = {
+ { "s1", QCOM_SMD_RPM_SMPA, 1, &pm8998_ftsmps, "vdd_s1" },
+ { "s2", QCOM_SMD_RPM_SMPA, 2, &pm8998_ftsmps, "vdd_s2" },
+ { "s3", QCOM_SMD_RPM_SMPA, 3, &pm8998_hfsmps, "vdd_s3" },
+ { "s4", QCOM_SMD_RPM_SMPA, 4, &pm8998_hfsmps, "vdd_s4" },
+ { "s5", QCOM_SMD_RPM_SMPA, 5, &pm8998_hfsmps, "vdd_s5" },
+ { "s6", QCOM_SMD_RPM_SMPA, 6, &pm8998_ftsmps, "vdd_s6" },
+ { "s7", QCOM_SMD_RPM_SMPA, 7, &pm8998_ftsmps, "vdd_s7" },
+ { "s8", QCOM_SMD_RPM_SMPA, 8, &pm8998_ftsmps, "vdd_s8" },
+ { "s9", QCOM_SMD_RPM_SMPA, 9, &pm8998_ftsmps, "vdd_s9" },
+ { "s10", QCOM_SMD_RPM_SMPA, 10, &pm8998_ftsmps, "vdd_s10" },
+ { "s11", QCOM_SMD_RPM_SMPA, 11, &pm8998_ftsmps, "vdd_s11" },
+ { "s12", QCOM_SMD_RPM_SMPA, 12, &pm8998_ftsmps, "vdd_s12" },
+ { "s13", QCOM_SMD_RPM_SMPA, 13, &pm8998_ftsmps, "vdd_s13" },
+ { "l1", QCOM_SMD_RPM_LDOA, 1, &pm8998_nldo, "vdd_l1_l27" },
+ { "l2", QCOM_SMD_RPM_LDOA, 2, &pm8998_nldo, "vdd_l2_l8_l17" },
+ { "l3", QCOM_SMD_RPM_LDOA, 3, &pm8998_nldo, "vdd_l3_l11" },
+ { "l4", QCOM_SMD_RPM_LDOA, 4, &pm8998_nldo, "vdd_l4_l5" },
+ { "l5", QCOM_SMD_RPM_LDOA, 5, &pm8998_nldo, "vdd_l4_l5" },
+ { "l6", QCOM_SMD_RPM_LDOA, 6, &pm8998_pldo, "vdd_l6" },
+ { "l7", QCOM_SMD_RPM_LDOA, 7, &pm8998_pldo_lv, "vdd_l7_l12_l14_l15" },
+ { "l8", QCOM_SMD_RPM_LDOA, 8, &pm8998_nldo, "vdd_l2_l8_l17" },
+ { "l9", QCOM_SMD_RPM_LDOA, 9, &pm8998_pldo, "vdd_l9" },
+ { "l10", QCOM_SMD_RPM_LDOA, 10, &pm8998_pldo, "vdd_l10_l23_l25" },
+ { "l11", QCOM_SMD_RPM_LDOA, 11, &pm8998_nldo, "vdd_l3_l11" },
+ { "l12", QCOM_SMD_RPM_LDOA, 12, &pm8998_pldo_lv, "vdd_l7_l12_l14_l15" },
+ { "l13", QCOM_SMD_RPM_LDOA, 13, &pm8998_pldo, "vdd_l13_l19_l21" },
+ { "l14", QCOM_SMD_RPM_LDOA, 14, &pm8998_pldo_lv, "vdd_l7_l12_l14_l15" },
+ { "l15", QCOM_SMD_RPM_LDOA, 15, &pm8998_pldo_lv, "vdd_l7_l12_l14_l15" },
+ { "l16", QCOM_SMD_RPM_LDOA, 16, &pm8998_pldo, "vdd_l16_l28" },
+ { "l17", QCOM_SMD_RPM_LDOA, 17, &pm8998_nldo, "vdd_l2_l8_l17" },
+ { "l18", QCOM_SMD_RPM_LDOA, 18, &pm8998_pldo, "vdd_l18_l22" },
+ { "l19", QCOM_SMD_RPM_LDOA, 19, &pm8998_pldo, "vdd_l13_l19_l21" },
+ { "l20", QCOM_SMD_RPM_LDOA, 20, &pm8998_pldo, "vdd_l20_l24" },
+ { "l21", QCOM_SMD_RPM_LDOA, 21, &pm8998_pldo, "vdd_l13_l19_l21" },
+ { "l22", QCOM_SMD_RPM_LDOA, 22, &pm8998_pldo, "vdd_l18_l22" },
+ { "l23", QCOM_SMD_RPM_LDOA, 23, &pm8998_pldo, "vdd_l10_l23_l25" },
+ { "l24", QCOM_SMD_RPM_LDOA, 24, &pm8998_pldo, "vdd_l20_l24" },
+ { "l25", QCOM_SMD_RPM_LDOA, 25, &pm8998_pldo, "vdd_l10_l23_l25" },
+ { "l26", QCOM_SMD_RPM_LDOA, 26, &pm8998_nldo, "vdd_l26" },
+ { "l27", QCOM_SMD_RPM_LDOA, 27, &pm8998_nldo, "vdd_l1_l27" },
+ { "l28", QCOM_SMD_RPM_LDOA, 28, &pm8998_pldo, "vdd_l16_l28" },
+ { "lvs1", QCOM_SMD_RPM_VSA, 1, &pm8998_switch, "vdd_lvs1_lvs2" },
+ { "lvs2", QCOM_SMD_RPM_VSA, 2, &pm8998_switch, "vdd_lvs1_lvs2" },
+ {}
+};
+
+static const struct rpm_regulator_data rpm_pmi8998_regulators[] = {
+ { "bob", QCOM_SMD_RPM_BOBB, 1, &pmi8998_bob, "vdd_bob" },
+ {}
+};
+
static const struct of_device_id rpm_of_match[] = {
{ .compatible = "qcom,rpm-pm8841-regulators", .data = &rpm_pm8841_regulators },
{ .compatible = "qcom,rpm-pm8916-regulators", .data = &rpm_pm8916_regulators },
{ .compatible = "qcom,rpm-pm8941-regulators", .data = &rpm_pm8941_regulators },
{ .compatible = "qcom,rpm-pm8994-regulators", .data = &rpm_pm8994_regulators },
+ { .compatible = "qcom,rpm-pm8998-regulators", .data = &rpm_pm8998_regulators },
{ .compatible = "qcom,rpm-pma8084-regulators", .data = &rpm_pma8084_regulators },
+ { .compatible = "qcom,rpm-pmi8998-regulators", .data = &rpm_pmi8998_regulators },
{}
};
MODULE_DEVICE_TABLE(of, rpm_of_match);
diff --git a/drivers/regulator/stm32-vrefbuf.c b/drivers/regulator/stm32-vrefbuf.c
index 72c8b3e1022b..e0a9c445ed67 100644
--- a/drivers/regulator/stm32-vrefbuf.c
+++ b/drivers/regulator/stm32-vrefbuf.c
@@ -51,7 +51,7 @@ static int stm32_vrefbuf_enable(struct regulator_dev *rdev)
* arbitrary timeout.
*/
ret = readl_poll_timeout(priv->base + STM32_VREFBUF_CSR, val,
- !(val & STM32_VRR), 650, 10000);
+ val & STM32_VRR, 650, 10000);
if (ret) {
dev_err(&rdev->dev, "stm32 vrefbuf timed out!\n");
val = readl_relaxed(priv->base + STM32_VREFBUF_CSR);
OpenPOWER on IntegriCloud