The TPS65218 chip is a power management IC for Portable Navigation Systems
and Tablet Computing devices. It contains the following components:
- Regulators.
- Over Temperature warning and Shut down.
This patch adds support for TPS65218 mfd device. At this time only
the regulator functionality is made available.
The series is boot tested on am43x-epos-evm board.
Changes in v2:
* Introduced register cache for interrupt mask register.
* regulator_map_voltage_linear_range instead of custom functions.
* Fixed couple of more minor comments.
Keerthy (4):
mfd: DT bindings for TPS65218 PMIC
MFD: TPS65218: Add driver for the TPS65218 PMIC
Regulators: TPS65218: Add Regulator driver for TPS65218 PMIC
ARM: dts: TPS65218: Add dts nodes of TPS65218 PMIC
Documentation/devicetree/bindings/mfd/tps65218.txt | 58 ++++
.../devicetree/bindings/regulator/tps65218.txt | 22 ++
arch/arm/boot/dts/am43x-epos-evm.dts | 40 +++
drivers/mfd/Kconfig | 15 +
drivers/mfd/Makefile | 1 +
drivers/mfd/tps65218.c | 281 ++++++++++++++++++
drivers/regulator/Kconfig | 9 +
drivers/regulator/Makefile | 1 +
drivers/regulator/tps65218-regulator.c | 304 ++++++++++++++++++++
include/linux/mfd/tps65218.h | 284 ++++++++++++++++++
10 files changed, 1015 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/tps65218.txt
create mode 100644 Documentation/devicetree/bindings/regulator/tps65218.txt
create mode 100644 drivers/mfd/tps65218.c
create mode 100644 drivers/regulator/tps65218-regulator.c
create mode 100644 include/linux/mfd/tps65218.h
--
1.7.9.5
Add DT bindings for TPS65218 PMIC.
Signed-off-by: Keerthy <[email protected]>
---
arch/arm/boot/dts/am43x-epos-evm.dts | 40 ++++++++++++++++++++++++++++++++++
1 file changed, 40 insertions(+)
diff --git a/arch/arm/boot/dts/am43x-epos-evm.dts b/arch/arm/boot/dts/am43x-epos-evm.dts
index fbf9c4c..fba45c2 100644
--- a/arch/arm/boot/dts/am43x-epos-evm.dts
+++ b/arch/arm/boot/dts/am43x-epos-evm.dts
@@ -167,6 +167,46 @@
x-size = <1024>;
y-size = <768>;
};
+ tps65218: tps65218@24 {
+ reg = <0x24>;
+ compatible = "ti,tps65218";
+ interrupts = <GIC_SPI 7 IRQ_TYPE_NONE>; /* NMIn */
+ interrupt-parent = <&gic>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+
+ dcdc1: regulator-dcdc1 {
+ compatible = "ti,tps65218-dcdc1";
+ /* VDD_CORE voltage limits min of OPP50 and max of OPP100 */
+ regulator-name = "vdd_core";
+ regulator-min-microvolt = <912000>;
+ regulator-max-microvolt = <1144000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ dcdc2: regulator-dcdc2 {
+ compatible = "ti,tps65218-dcdc2";
+ /* VDD_MPU voltage limits min of OPP50 and max of OPP_NITRO */
+ regulator-name = "vdd_mpu";
+ regulator-min-microvolt = <912000>;
+ regulator-max-microvolt = <1378000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ dcdc3: regulator-dcdc3 {
+ compatible = "ti,tps65218-dcdc3";
+ };
+
+ ldo1: regulator-ldo1 {
+ compatible = "ti,tps65218-ldo1";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+ };
};
&gpio0 {
--
1.7.9.5
This patch adds support for TPS65218 PMIC regulators.
The regulators set consists of 6 DCDCs and 1 LDO. The output
voltages are configurable and are meant to supply power to the
main processor and other components.
Signed-off-by: Keerthy <[email protected]>
---
drivers/regulator/Kconfig | 9 +
drivers/regulator/Makefile | 1 +
drivers/regulator/tps65218-regulator.c | 304 ++++++++++++++++++++++++++++++++
3 files changed, 314 insertions(+)
create mode 100644 drivers/regulator/tps65218-regulator.c
diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index 6a79328..b05da880 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -513,6 +513,15 @@ config REGULATOR_TPS65217
voltage regulators. It supports software based voltage control
for different voltage domains
+config REGULATOR_TPS65218
+ tristate "TI TPS65218 Power regulators"
+ depends on MFD_TPS65218
+ help
+ This driver supports TPS65218 voltage regulator chips. TPS65218
+ provides six step-down converters and one general-purpose LDO
+ voltage regulators. It supports software based voltage control
+ for different voltage domains
+
config REGULATOR_TPS6524X
tristate "TI TPS6524X Power regulators"
depends on SPI
diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile
index 979f9dd..ba801a5 100644
--- a/drivers/regulator/Makefile
+++ b/drivers/regulator/Makefile
@@ -67,6 +67,7 @@ obj-$(CONFIG_REGULATOR_TPS65023) += tps65023-regulator.o
obj-$(CONFIG_REGULATOR_TPS6507X) += tps6507x-regulator.o
obj-$(CONFIG_REGULATOR_TPS65090) += tps65090-regulator.o
obj-$(CONFIG_REGULATOR_TPS65217) += tps65217-regulator.o
+obj-$(CONFIG_REGULATOR_TPS65218) += tps65218-regulator.o
obj-$(CONFIG_REGULATOR_TPS6524X) += tps6524x-regulator.o
obj-$(CONFIG_REGULATOR_TPS6586X) += tps6586x-regulator.o
obj-$(CONFIG_REGULATOR_TPS65910) += tps65910-regulator.o
diff --git a/drivers/regulator/tps65218-regulator.c b/drivers/regulator/tps65218-regulator.c
new file mode 100644
index 0000000..39fb189
--- /dev/null
+++ b/drivers/regulator/tps65218-regulator.c
@@ -0,0 +1,304 @@
+/*
+ * tps65218-regulator.c
+ *
+ * Regulator driver for TPS65218 PMIC
+ *
+ * Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether expressed or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License version 2 for more details.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/of_device.h>
+#include <linux/regulator/of_regulator.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/mfd/tps65218.h>
+
+static unsigned int tps65218_ramp_delay = 4000;
+
+enum tps65218_regulators { DCDC1, DCDC2, DCDC3, DCDC4, DCDC5, DCDC6, LDO1 };
+
+#define TPS65218_REGULATOR(_name, _id, _ops, _n, _vr, _vm, _er, _em, _t, \
+ _lr, _nlr) \
+ { \
+ .name = _name, \
+ .id = _id, \
+ .ops = &_ops, \
+ .n_voltages = _n, \
+ .type = REGULATOR_VOLTAGE, \
+ .owner = THIS_MODULE, \
+ .vsel_reg = _vr, \
+ .vsel_mask = _vm, \
+ .enable_reg = _er, \
+ .enable_mask = _em, \
+ .volt_table = _t, \
+ .linear_ranges = _lr, \
+ .n_linear_ranges = _nlr, \
+ } \
+
+#define TPS65218_INFO(_id, _nm, _min, _max) \
+ { \
+ .id = _id, \
+ .name = _nm, \
+ .min_uV = _min, \
+ .max_uV = _max, \
+ }
+
+static const struct regulator_linear_range dcdc1_dcdc2_ranges[] = {
+ REGULATOR_LINEAR_RANGE(850000, 0x0, 0x32, 10000),
+ REGULATOR_LINEAR_RANGE(1375000, 0x33, 0x3f, 25000),
+};
+
+static const struct regulator_linear_range ldo1_dcdc3_ranges[] = {
+ REGULATOR_LINEAR_RANGE(900000, 0x0, 0x1a, 25000),
+ REGULATOR_LINEAR_RANGE(1600000, 0x1b, 0x3f, 50000),
+};
+
+static const struct regulator_linear_range dcdc4_ranges[] = {
+ REGULATOR_LINEAR_RANGE(1175000, 0x0, 0xf, 25000),
+ REGULATOR_LINEAR_RANGE(1550000, 0x10, 0x34, 50000),
+};
+
+static struct tps_info tps65218_pmic_regs[] = {
+ TPS65218_INFO(0, "DCDC1", 850000, 167500),
+ TPS65218_INFO(1, "DCDC2", 850000, 1675000),
+ TPS65218_INFO(2, "DCDC3", 900000, 3400000),
+ TPS65218_INFO(3, "DCDC4", 1175000, 3400000),
+ TPS65218_INFO(4, "DCDC5", 1000000, 1000000),
+ TPS65218_INFO(5, "DCDC6", 1800000, 1800000),
+ TPS65218_INFO(6, "LDO1", 900000, 3400000),
+};
+
+#define TPS65218_OF_MATCH(comp, label) \
+ { \
+ .compatible = comp, \
+ .data = &label, \
+ }
+
+static const struct of_device_id tps65218_of_match[] = {
+ TPS65218_OF_MATCH("ti,tps65218-dcdc1", tps65218_pmic_regs[DCDC1]),
+ TPS65218_OF_MATCH("ti,tps65218-dcdc2", tps65218_pmic_regs[DCDC2]),
+ TPS65218_OF_MATCH("ti,tps65218-dcdc3", tps65218_pmic_regs[DCDC3]),
+ TPS65218_OF_MATCH("ti,tps65218-dcdc4", tps65218_pmic_regs[DCDC4]),
+ TPS65218_OF_MATCH("ti,tps65218-dcdc5", tps65218_pmic_regs[DCDC5]),
+ TPS65218_OF_MATCH("ti,tps65218-dcdc6", tps65218_pmic_regs[DCDC6]),
+ TPS65218_OF_MATCH("ti,tps65218-ldo1", tps65218_pmic_regs[LDO1]),
+};
+MODULE_DEVICE_TABLE(of, tps65218_of_match);
+
+static int tps65218_pmic_set_voltage_sel(struct regulator_dev *dev,
+ unsigned selector)
+{
+ int ret;
+ struct tps65218 *tps = rdev_get_drvdata(dev);
+ unsigned int rid = rdev_get_id(dev);
+
+ /* Set the voltage based on vsel value and write protect level is 2 */
+ ret = tps65218_set_bits(tps, dev->desc->vsel_reg, dev->desc->vsel_mask,
+ selector, TPS65218_PROTECT_L1);
+
+ /* Set GO bit for DCDC1/2 to initiate voltage transistion */
+ switch (rid) {
+ case TPS65218_DCDC_1:
+ case TPS65218_DCDC_2:
+ ret = tps65218_set_bits(tps, TPS65218_REG_CONTRL_SLEW_RATE,
+ TPS65218_SLEW_RATE_GO,
+ TPS65218_SLEW_RATE_GO,
+ TPS65218_PROTECT_L1);
+ break;
+ }
+
+ return ret;
+}
+
+static int tps65218_pmic_enable(struct regulator_dev *dev)
+{
+ struct tps65218 *tps = rdev_get_drvdata(dev);
+ unsigned int rid = rdev_get_id(dev);
+
+ if (rid < TPS65218_DCDC_1 || rid > TPS65218_LDO_1)
+ return -EINVAL;
+
+ /* Enable the regulator and password protection is level 1 */
+ return tps65218_set_bits(tps, dev->desc->enable_reg,
+ dev->desc->enable_mask, dev->desc->enable_mask,
+ TPS65218_PROTECT_L1);
+}
+
+static int tps65218_pmic_disable(struct regulator_dev *dev)
+{
+ struct tps65218 *tps = rdev_get_drvdata(dev);
+ unsigned int rid = rdev_get_id(dev);
+
+ if (rid < TPS65218_DCDC_1 || rid > TPS65218_LDO_1)
+ return -EINVAL;
+
+ /* Disable the regulator and password protection is level 1 */
+ return tps65218_clear_bits(tps, dev->desc->enable_reg,
+ dev->desc->enable_mask, TPS65218_PROTECT_L1);
+}
+
+static int tps65218_set_voltage_time_sel(struct regulator_dev *rdev,
+ unsigned int old_selector, unsigned int new_selector)
+{
+ int old_uv, new_uv;
+
+ old_uv = regulator_list_voltage_linear_range(rdev, old_selector);
+ if (old_uv < 0)
+ return old_uv;
+
+ new_uv = regulator_list_voltage_linear_range(rdev, new_selector);
+ if (new_uv < 0)
+ return new_uv;
+
+ return DIV_ROUND_UP(abs(old_uv - new_uv), tps65218_ramp_delay);
+}
+
+/* Operations permitted on DCDC1, DCDC2 */
+static struct regulator_ops tps65218_dcdc12_ops = {
+ .is_enabled = regulator_is_enabled_regmap,
+ .enable = tps65218_pmic_enable,
+ .disable = tps65218_pmic_disable,
+ .get_voltage_sel = regulator_get_voltage_sel_regmap,
+ .set_voltage_sel = tps65218_pmic_set_voltage_sel,
+ .list_voltage = regulator_list_voltage_linear_range,
+ .map_voltage = regulator_map_voltage_linear_range,
+ .set_voltage_time_sel = tps65218_set_voltage_time_sel,
+};
+
+/* Operations permitted on DCDC3, DCDC4 and LDO1 */
+static struct regulator_ops tps65218_ldo1_dcdc34_ops = {
+ .is_enabled = regulator_is_enabled_regmap,
+ .enable = tps65218_pmic_enable,
+ .disable = tps65218_pmic_disable,
+ .get_voltage_sel = regulator_get_voltage_sel_regmap,
+ .set_voltage_sel = tps65218_pmic_set_voltage_sel,
+ .list_voltage = regulator_list_voltage_linear_range,
+ .map_voltage = regulator_map_voltage_linear_range,
+};
+
+/* Operations permitted on DCDC5, DCDC6 */
+static struct regulator_ops tps65218_dcdc56_pmic_ops = {
+ .is_enabled = regulator_is_enabled_regmap,
+ .enable = tps65218_pmic_enable,
+ .disable = tps65218_pmic_disable,
+};
+
+static const struct regulator_desc regulators[] = {
+ TPS65218_REGULATOR("DCDC1", TPS65218_DCDC_1, tps65218_dcdc12_ops, 64,
+ TPS65218_REG_CONTROL_DCDC1,
+ TPS65218_CONTROL_DCDC1_MASK,
+ TPS65218_REG_ENABLE1, TPS65218_ENABLE1_DC1_EN, NULL,
+ dcdc1_dcdc2_ranges, 2),
+ TPS65218_REGULATOR("DCDC2", TPS65218_DCDC_2, tps65218_dcdc12_ops, 64,
+ TPS65218_REG_CONTROL_DCDC2,
+ TPS65218_CONTROL_DCDC2_MASK,
+ TPS65218_REG_ENABLE1, TPS65218_ENABLE1_DC2_EN, NULL,
+ dcdc1_dcdc2_ranges, 2),
+ TPS65218_REGULATOR("DCDC3", TPS65218_DCDC_3, tps65218_ldo1_dcdc34_ops,
+ 64, TPS65218_REG_CONTROL_DCDC3,
+ TPS65218_CONTROL_DCDC3_MASK, TPS65218_REG_ENABLE1,
+ TPS65218_ENABLE1_DC3_EN, NULL,
+ ldo1_dcdc3_ranges, 2),
+ TPS65218_REGULATOR("DCDC4", TPS65218_DCDC_4, tps65218_ldo1_dcdc34_ops,
+ 53, TPS65218_REG_CONTROL_DCDC4,
+ TPS65218_CONTROL_DCDC4_MASK,
+ TPS65218_REG_ENABLE1, TPS65218_ENABLE1_DC4_EN, NULL,
+ dcdc4_ranges, 2),
+ TPS65218_REGULATOR("DCDC5", TPS65218_DCDC_5, tps65218_dcdc56_pmic_ops,
+ 1, -1, -1, TPS65218_REG_ENABLE1,
+ TPS65218_ENABLE1_DC5_EN, NULL, NULL, 0),
+ TPS65218_REGULATOR("DCDC6", TPS65218_DCDC_6, tps65218_dcdc56_pmic_ops,
+ 1, -1, -1, TPS65218_REG_ENABLE1,
+ TPS65218_ENABLE1_DC6_EN, NULL, NULL, 0),
+ TPS65218_REGULATOR("LDO1", TPS65218_LDO_1, tps65218_ldo1_dcdc34_ops, 64,
+ TPS65218_REG_CONTROL_DCDC4,
+ TPS65218_CONTROL_LDO1_MASK, TPS65218_REG_ENABLE2,
+ TPS65218_ENABLE2_LDO1_EN, NULL, ldo1_dcdc3_ranges,
+ 2),
+};
+
+static int tps65218_regulator_probe(struct platform_device *pdev)
+{
+ struct tps65218 *tps = dev_get_drvdata(pdev->dev.parent);
+ struct regulator_init_data *init_data;
+ const struct tps_info *template;
+ struct regulator_dev *rdev;
+ const struct of_device_id *match;
+ struct regulator_config config = { };
+ int id;
+
+ match = of_match_device(tps65218_of_match, &pdev->dev);
+ if (match) {
+ template = match->data;
+ id = template->id;
+ init_data = of_get_regulator_init_data(&pdev->dev,
+ pdev->dev.of_node);
+ } else {
+ return -ENODEV;
+ }
+
+ platform_set_drvdata(pdev, tps);
+
+ tps->info[id] = &tps65218_pmic_regs[id];
+ config.dev = &pdev->dev;
+ config.init_data = init_data;
+ config.driver_data = tps;
+ config.regmap = tps->regmap;
+
+ rdev = devm_regulator_register(&pdev->dev, ®ulators[id], &config);
+ if (IS_ERR(rdev)) {
+ dev_err(tps->dev, "failed to register %s regulator\n",
+ pdev->name);
+ return PTR_ERR(rdev);
+ }
+
+ /* Save regulator */
+ tps->rdev[id] = rdev;
+
+ return 0;
+}
+
+static int tps65218_regulator_remove(struct platform_device *pdev)
+{
+ struct tps65218 *tps = platform_get_drvdata(pdev);
+ const struct of_device_id *match;
+ const struct tps_info *template;
+
+ match = of_match_device(tps65218_of_match, &pdev->dev);
+ template = match->data;
+ regulator_unregister(tps->rdev[template->id]);
+ platform_set_drvdata(pdev, NULL);
+
+ return 0;
+}
+
+static struct platform_driver tps65218_regulator_driver = {
+ .driver = {
+ .name = "tps65218-pmic",
+ .owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(tps65218_of_match),
+ },
+ .probe = tps65218_regulator_probe,
+ .remove = tps65218_regulator_remove,
+};
+
+module_platform_driver(tps65218_regulator_driver);
+
+MODULE_AUTHOR("J Keerthy <[email protected]>");
+MODULE_DESCRIPTION("TPS65218 voltage regulator driver");
+MODULE_ALIAS("platform:tps65218-pmic");
+MODULE_LICENSE("GPL v2");
--
1.7.9.5
The TPS65218 chip is a power management IC for Portable Navigation Systems
and Tablet Computing devices. It contains the following components:
- Regulators.
- Over Temperature warning and Shut down.
This patch adds support for tps65218 mfd device. At this time only
the regulator functionality is made available.
Signed-off-by: Keerthy <[email protected]>
---
drivers/mfd/Kconfig | 15 +++
drivers/mfd/Makefile | 1 +
drivers/mfd/tps65218.c | 281 +++++++++++++++++++++++++++++++++++++++++
include/linux/mfd/tps65218.h | 284 ++++++++++++++++++++++++++++++++++++++++++
4 files changed, 581 insertions(+)
create mode 100644 drivers/mfd/tps65218.c
create mode 100644 include/linux/mfd/tps65218.h
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 49bb445..de55e41 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -853,6 +853,21 @@ config MFD_TPS65217
This driver can also be built as a module. If so, the module
will be called tps65217.
+config MFD_TPS65218
+ tristate "TI TPS65218 Power Management chips"
+ depends on I2C
+ select MFD_CORE
+ select REGMAP_I2C
+ help
+ If you say yes here you get support for the TPS65218 series of
+ Power Management chips.
+ These include voltage regulators, gpio and other features
+ that are often used in portable devices. Only regulator
+ component is currently supported.
+
+ This driver can also be built as a module. If so, the module
+ will be called tps65218.
+
config MFD_TPS6586X
bool "TI TPS6586x Power Management chips"
depends on I2C=y
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 5aea5ef..e1f7279 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -62,6 +62,7 @@ obj-$(CONFIG_TPS6105X) += tps6105x.o
obj-$(CONFIG_TPS65010) += tps65010.o
obj-$(CONFIG_TPS6507X) += tps6507x.o
obj-$(CONFIG_MFD_TPS65217) += tps65217.o
+obj-$(CONFIG_MFD_TPS65218) += tps65218.o
obj-$(CONFIG_MFD_TPS65910) += tps65910.o
tps65912-objs := tps65912-core.o tps65912-irq.o
obj-$(CONFIG_MFD_TPS65912) += tps65912.o
diff --git a/drivers/mfd/tps65218.c b/drivers/mfd/tps65218.c
new file mode 100644
index 0000000..02679ac
--- /dev/null
+++ b/drivers/mfd/tps65218.c
@@ -0,0 +1,281 @@
+/*
+ * Driver for TPS65218 Integrated power management chipsets
+ *
+ * Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether expressed or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License version 2 for more details.
+ */
+
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/init.h>
+#include <linux/i2c.h>
+#include <linux/slab.h>
+#include <linux/regmap.h>
+#include <linux/err.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/mutex.h>
+
+#include <linux/mfd/core.h>
+#include <linux/mfd/tps65218.h>
+
+#define TPS65218_PASSWORD_REGS_UNLOCK 0x7D
+
+/**
+ * tps65218_reg_read: Read a single tps65218 register.
+ *
+ * @tps: Device to read from.
+ * @reg: Register to read.
+ * @val: Contians the value
+ */
+int tps65218_reg_read(struct tps65218 *tps, unsigned int reg,
+ unsigned int *val)
+{
+ return regmap_read(tps->regmap, reg, val);
+}
+EXPORT_SYMBOL_GPL(tps65218_reg_read);
+
+/**
+ * tps65218_reg_write: Write a single tps65218 register.
+ *
+ * @tps65218: Device to write to.
+ * @reg: Register to write to.
+ * @val: Value to write.
+ * @level: Password protected level
+ */
+int tps65218_reg_write(struct tps65218 *tps, unsigned int reg,
+ unsigned int val, unsigned int level)
+{
+ int ret;
+ unsigned int xor_reg_val;
+
+ switch (level) {
+ case TPS65218_PROTECT_NONE:
+ return regmap_write(tps->regmap, reg, val);
+ case TPS65218_PROTECT_L1:
+ xor_reg_val = reg ^ TPS65218_PASSWORD_REGS_UNLOCK;
+ ret = regmap_write(tps->regmap, TPS65218_REG_PASSWORD,
+ xor_reg_val);
+ if (ret < 0)
+ return ret;
+
+ return regmap_write(tps->regmap, reg, val);
+ default:
+ return -EINVAL;
+ }
+}
+EXPORT_SYMBOL_GPL(tps65218_reg_write);
+
+/**
+ * tps65218_update_bits: Modify bits w.r.t mask, val and level.
+ *
+ * @tps65218: Device to write to.
+ * @reg: Register to read-write to.
+ * @mask: Mask.
+ * @val: Value to write.
+ * @level: Password protected level
+ */
+static int tps65218_update_bits(struct tps65218 *tps, unsigned int reg,
+ unsigned int mask, unsigned int val, unsigned int level)
+{
+ int ret;
+ unsigned int data;
+
+ ret = tps65218_reg_read(tps, reg, &data);
+ if (ret) {
+ dev_err(tps->dev, "Read from reg 0x%x failed\n", reg);
+ return ret;
+ }
+
+ data &= ~mask;
+ data |= val & mask;
+
+ mutex_lock(&tps->tps_lock);
+ ret = tps65218_reg_write(tps, reg, data, level);
+ if (ret)
+ dev_err(tps->dev, "Write for reg 0x%x failed\n", reg);
+ mutex_unlock(&tps->tps_lock);
+
+ return ret;
+}
+
+int tps65218_set_bits(struct tps65218 *tps, unsigned int reg,
+ unsigned int mask, unsigned int val, unsigned int level)
+{
+ return tps65218_update_bits(tps, reg, mask, val, level);
+}
+EXPORT_SYMBOL_GPL(tps65218_set_bits);
+
+int tps65218_clear_bits(struct tps65218 *tps, unsigned int reg,
+ unsigned int mask, unsigned int level)
+{
+ return tps65218_update_bits(tps, reg, mask, 0, level);
+}
+EXPORT_SYMBOL_GPL(tps65218_clear_bits);
+
+static struct regmap_config tps65218_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .cache_type = REGCACHE_RBTREE,
+};
+
+static const struct regmap_irq tps65218_irqs[] = {
+ /* INT1 IRQs */
+ [TPS65218_PRGC_IRQ] = {
+ .mask = TPS65218_INT1_PRGC,
+ },
+ [TPS65218_CC_AQC_IRQ] = {
+ .mask = TPS65218_INT1_CC_AQC,
+ },
+ [TPS65218_HOT_IRQ] = {
+ .mask = TPS65218_INT1_HOT,
+ },
+ [TPS65218_PB_IRQ] = {
+ .mask = TPS65218_INT1_PB,
+ },
+ [TPS65218_AC_IRQ] = {
+ .mask = TPS65218_INT1_AC,
+ },
+ [TPS65218_VPRG_IRQ] = {
+ .mask = TPS65218_INT1_VPRG,
+ },
+ [TPS65218_INVALID1_IRQ] = {
+ },
+ [TPS65218_INVALID2_IRQ] = {
+ },
+ /* INT2 IRQs*/
+ [TPS65218_LS1_I_IRQ] = {
+ .mask = TPS65218_INT2_LS1_I,
+ .reg_offset = 1,
+ },
+ [TPS65218_LS2_I_IRQ] = {
+ .mask = TPS65218_INT2_LS2_I,
+ .reg_offset = 1,
+ },
+ [TPS65218_LS3_I_IRQ] = {
+ .mask = TPS65218_INT2_LS3_I,
+ .reg_offset = 1,
+ },
+ [TPS65218_LS1_F_IRQ] = {
+ .mask = TPS65218_INT2_LS1_F,
+ .reg_offset = 1,
+ },
+ [TPS65218_LS2_F_IRQ] = {
+ .mask = TPS65218_INT2_LS2_F,
+ .reg_offset = 1,
+ },
+ [TPS65218_LS3_F_IRQ] = {
+ .mask = TPS65218_INT2_LS3_F,
+ .reg_offset = 1,
+ },
+ [TPS65218_INVALID3_IRQ] = {
+ },
+ [TPS65218_INVALID4_IRQ] = {
+ },
+};
+
+static struct regmap_irq_chip tps65218_irq_chip = {
+ .name = "tps65218",
+ .irqs = tps65218_irqs,
+ .num_irqs = ARRAY_SIZE(tps65218_irqs),
+
+ .num_regs = 2,
+ .mask_base = TPS65218_REG_INT_MASK1,
+};
+
+static const struct of_device_id of_tps65218_match_table[] = {
+ { .compatible = "ti,tps65218", },
+};
+
+static int tps65218_probe(struct i2c_client *client,
+ const struct i2c_device_id *ids)
+{
+ struct tps65218 *tps;
+ const struct of_device_id *match;
+ int ret;
+
+ match = of_match_device(of_tps65218_match_table, &client->dev);
+ if (!match) {
+ dev_err(&client->dev,
+ "Failed to find matching dt id\n");
+ return -EINVAL;
+ }
+
+ tps = devm_kzalloc(&client->dev, sizeof(*tps), GFP_KERNEL);
+ if (!tps)
+ return -ENOMEM;
+
+ i2c_set_clientdata(client, tps);
+ tps->dev = &client->dev;
+ tps->irq = client->irq;
+ tps->regmap = devm_regmap_init_i2c(client, &tps65218_regmap_config);
+ if (IS_ERR(tps->regmap)) {
+ ret = PTR_ERR(tps->regmap);
+ dev_err(tps->dev, "Failed to allocate register map: %d\n",
+ ret);
+ return ret;
+ }
+
+ mutex_init(&tps->tps_lock);
+
+ ret = regmap_add_irq_chip(tps->regmap, tps->irq,
+ IRQF_ONESHOT, 0, &tps65218_irq_chip,
+ &tps->irq_data);
+ if (ret < 0)
+ return ret;
+
+ ret = of_platform_populate(client->dev.of_node, NULL, NULL,
+ &client->dev);
+ if (ret < 0)
+ goto err_irq;
+
+ return 0;
+
+err_irq:
+ regmap_del_irq_chip(tps->irq, tps->irq_data);
+
+ return ret;
+}
+
+static int tps65218_remove(struct i2c_client *client)
+{
+ struct tps65218 *tps = i2c_get_clientdata(client);
+
+ regmap_del_irq_chip(tps->irq, tps->irq_data);
+
+ return 0;
+}
+
+static const struct i2c_device_id tps65218_id_table[] = {
+ { "tps65218", TPS65218 },
+};
+MODULE_DEVICE_TABLE(i2c, tps65218_id_table);
+
+static struct i2c_driver tps65218_driver = {
+ .driver = {
+ .name = "tps65218",
+ .owner = THIS_MODULE,
+ .of_match_table = of_tps65218_match_table,
+ },
+ .probe = tps65218_probe,
+ .remove = tps65218_remove,
+ .id_table = tps65218_id_table,
+};
+
+module_i2c_driver(tps65218_driver);
+
+MODULE_AUTHOR("J Keerthy <[email protected]>");
+MODULE_DESCRIPTION("TPS65218 chip family multi-function driver");
+MODULE_LICENSE("GPL v2");
diff --git a/include/linux/mfd/tps65218.h b/include/linux/mfd/tps65218.h
new file mode 100644
index 0000000..a250d06
--- /dev/null
+++ b/include/linux/mfd/tps65218.h
@@ -0,0 +1,284 @@
+/*
+ * linux/mfd/tps65218.h
+ *
+ * Functions to access TPS65219 power management chip.
+ *
+ * Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether expressed or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License version 2 for more details.
+ */
+
+#ifndef __LINUX_MFD_TPS65218_H
+#define __LINUX_MFD_TPS65218_H
+
+#include <linux/i2c.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/bitops.h>
+
+/* TPS chip id list */
+#define TPS65218 0xF0
+
+/* I2C ID for TPS65218 part */
+#define TPS65218_I2C_ID 0x24
+
+/* All register addresses */
+#define TPS65218_REG_CHIPID 0x00
+#define TPS65218_REG_INT1 0x01
+#define TPS65218_REG_INT2 0x02
+#define TPS65218_REG_INT_MASK1 0x03
+#define TPS65218_REG_INT_MASK2 0x04
+#define TPS65218_REG_STATUS 0x05
+#define TPS65218_REG_CONTROL 0x06
+#define TPS65218_REG_FLAG 0x07
+
+#define TPS65218_REG_PASSWORD 0x10
+#define TPS65218_REG_ENABLE1 0x11
+#define TPS65218_REG_ENABLE2 0x12
+#define TPS65218_REG_CONFIG1 0x13
+#define TPS65218_REG_CONFIG2 0x14
+#define TPS65218_REG_CONFIG3 0x15
+#define TPS65218_REG_CONTROL_DCDC1 0x16
+#define TPS65218_REG_CONTROL_DCDC2 0x17
+#define TPS65218_REG_CONTROL_DCDC3 0x18
+#define TPS65218_REG_CONTROL_DCDC4 0x19
+#define TPS65218_REG_CONTRL_SLEW_RATE 0x1A
+#define TPS65218_REG_CONTROL_LDO1 0x1B
+#define TPS65218_REG_SEQ1 0x20
+#define TPS65218_REG_SEQ2 0x21
+#define TPS65218_REG_SEQ3 0x22
+#define TPS65218_REG_SEQ4 0x23
+#define TPS65218_REG_SEQ5 0x24
+#define TPS65218_REG_SEQ6 0x25
+#define TPS65218_REG_SEQ7 0x26
+
+/* Register field definitions */
+#define TPS65218_CHIPID_CHIP_MASK 0xF8
+#define TPS65218_CHIPID_REV_MASK 0x07
+
+#define TPS65218_INT1_VPRG BIT(5)
+#define TPS65218_INT1_AC BIT(4)
+#define TPS65218_INT1_PB BIT(3)
+#define TPS65218_INT1_HOT BIT(2)
+#define TPS65218_INT1_CC_AQC BIT(1)
+#define TPS65218_INT1_PRGC BIT(0)
+
+#define TPS65218_INT2_LS3_F BIT(5)
+#define TPS65218_INT2_LS2_F BIT(4)
+#define TPS65218_INT2_LS1_F BIT(3)
+#define TPS65218_INT2_LS3_I BIT(2)
+#define TPS65218_INT2_LS2_I BIT(1)
+#define TPS65218_INT2_LS1_I BIT(0)
+
+#define TPS65218_INT_MASK1_VPRG BIT(5)
+#define TPS65218_INT_MASK1_AC BIT(4)
+#define TPS65218_INT_MASK1_PB BIT(3)
+#define TPS65218_INT_MASK1_HOT BIT(2)
+#define TPS65218_INT_MASK1_CC_AQC BIT(1)
+#define TPS65218_INT_MASK1_PRGC BIT(0)
+
+#define TPS65218_INT_MASK2_LS3_F BIT(5)
+#define TPS65218_INT_MASK2_LS2_F BIT(4)
+#define TPS65218_INT_MASK2_LS1_F BIT(3)
+#define TPS65218_INT_MASK2_LS3_I BIT(2)
+#define TPS65218_INT_MASK2_LS2_I BIT(1)
+#define TPS65218_INT_MASK2_LS1_I BIT(0)
+
+#define TPS65218_STATUS_FSEAL BIT(7)
+#define TPS65218_STATUS_EE BIT(6)
+#define TPS65218_STATUS_AC_STATE BIT(5)
+#define TPS65218_STATUS_PB_STATE BIT(4)
+#define TPS65218_STATUS_STATE_MASK 0xC
+#define TPS65218_STATUS_CC_STAT 0x3
+
+#define TPS65218_CONTROL_OFFNPFO BIT(1)
+#define TPS65218_CONTROL_CC_AQ BIT(0)
+
+#define TPS65218_FLAG_GPO3_FLG BIT(7)
+#define TPS65218_FLAG_GPO2_FLG BIT(6)
+#define TPS65218_FLAG_GPO1_FLG BIT(5)
+#define TPS65218_FLAG_LDO1_FLG BIT(4)
+#define TPS65218_FLAG_DC4_FLG BIT(3)
+#define TPS65218_FLAG_DC3_FLG BIT(2)
+#define TPS65218_FLAG_DC2_FLG BIT(1)
+#define TPS65218_FLAG_DC1_FLG BIT(0)
+
+#define TPS65218_ENABLE1_DC6_EN BIT(5)
+#define TPS65218_ENABLE1_DC5_EN BIT(4)
+#define TPS65218_ENABLE1_DC4_EN BIT(3)
+#define TPS65218_ENABLE1_DC3_EN BIT(2)
+#define TPS65218_ENABLE1_DC2_EN BIT(1)
+#define TPS65218_ENABLE1_DC1_EN BIT(0)
+
+#define TPS65218_ENABLE2_GPIO3 BIT(6)
+#define TPS65218_ENABLE2_GPIO2 BIT(5)
+#define TPS65218_ENABLE2_GPIO1 BIT(4)
+#define TPS65218_ENABLE2_LS3_EN BIT(3)
+#define TPS65218_ENABLE2_LS2_EN BIT(2)
+#define TPS65218_ENABLE2_LS1_EN BIT(1)
+#define TPS65218_ENABLE2_LDO1_EN BIT(0)
+
+
+#define TPS65218_CONFIG1_TRST BIT(7)
+#define TPS65218_CONFIG1_GPO2_BUF BIT(6)
+#define TPS65218_CONFIG1_IO1_SEL BIT(5)
+#define TPS65218_CONFIG1_PGDLY_MASK 0x18
+#define TPS65218_CONFIG1_STRICT BIT(2)
+#define TPS65218_CONFIG1_UVLO_MASK 0x3
+
+#define TPS65218_CONFIG2_DC12_RST BIT(7)
+#define TPS65218_CONFIG2_UVLOHYS BIT(6)
+#define TPS65218_CONFIG2_LS3ILIM_MASK 0xC
+#define TPS65218_CONFIG2_LS2ILIM_MASK 0x3
+
+#define TPS65218_CONFIG3_LS3NPFO BIT(5)
+#define TPS65218_CONFIG3_LS2NPFO BIT(4)
+#define TPS65218_CONFIG3_LS1NPFO BIT(3)
+#define TPS65218_CONFIG3_LS3DCHRG BIT(2)
+#define TPS65218_CONFIG3_LS2DCHRG BIT(1)
+#define TPS65218_CONFIG3_LS1DCHRG BIT(0)
+
+#define TPS65218_CONTROL_DCDC1_PFM BIT(7)
+#define TPS65218_CONTROL_DCDC1_MASK 0x7F
+
+#define TPS65218_CONTROL_DCDC2_PFM BIT(7)
+#define TPS65218_CONTROL_DCDC2_MASK 0x3F
+
+#define TPS65218_CONTROL_DCDC3_PFM BIT(7)
+#define TPS65218_CONTROL_DCDC3_MASK 0x3F
+
+#define TPS65218_CONTROL_DCDC4_PFM BIT(7)
+#define TPS65218_CONTROL_DCDC4_MASK 0x3F
+
+#define TPS65218_SLEW_RATE_GO BIT(7)
+#define TPS65218_SLEW_RATE_GODSBL BIT(6)
+#define TPS65218_SLEW_RATE_SLEW_MASK 0x7
+
+#define TPS65218_CONTROL_LDO1_MASK 0x3F
+
+#define TPS65218_SEQ1_DLY8 BIT(7)
+#define TPS65218_SEQ1_DLY7 BIT(6)
+#define TPS65218_SEQ1_DLY6 BIT(5)
+#define TPS65218_SEQ1_DLY5 BIT(4)
+#define TPS65218_SEQ1_DLY4 BIT(3)
+#define TPS65218_SEQ1_DLY3 BIT(2)
+#define TPS65218_SEQ1_DLY2 BIT(1)
+#define TPS65218_SEQ1_DLY1 BIT(0)
+
+#define TPS65218_SEQ2_DLYFCTR BIT(7)
+#define TPS65218_SEQ2_DLY9 BIT(0)
+
+#define TPS65218_SEQ3_DC2_SEQ_MASK 0xF0
+#define TPS65218_SEQ3_DC1_SEQ_MASK 0xF
+
+#define TPS65218_SEQ4_DC4_SEQ_MASK 0xF0
+#define TPS65218_SEQ4_DC3_SEQ_MASK 0xF
+
+#define TPS65218_SEQ5_DC6_SEQ_MASK 0xF0
+#define TPS65218_SEQ5_DC5_SEQ_MASK 0xF
+
+#define TPS65218_SEQ6_LS1_SEQ_MASK 0xF0
+#define TPS65218_SEQ6_LDO1_SEQ_MASK 0xF
+
+#define TPS65218_SEQ7_GPO3_SEQ_MASK 0xF0
+#define TPS65218_SEQ7_GPO1_SEQ_MASK 0xF
+#define TPS65218_PROTECT_NONE 0
+#define TPS65218_PROTECT_L1 1
+
+enum tps65218_regulator_id {
+ /* DCDC's */
+ TPS65218_DCDC_1,
+ TPS65218_DCDC_2,
+ TPS65218_DCDC_3,
+ TPS65218_DCDC_4,
+ TPS65218_DCDC_5,
+ TPS65218_DCDC_6,
+ /* LDOs */
+ TPS65218_LDO_1,
+};
+
+#define TPS65218_MAX_REG_ID TPS65218_LDO_1
+
+/* Number of step-down converters available */
+#define TPS65218_NUM_DCDC 6
+/* Number of LDO voltage regulators available */
+#define TPS65218_NUM_LDO 1
+/* Number of total regulators available */
+#define TPS65218_NUM_REGULATOR (TPS65218_NUM_DCDC + TPS65218_NUM_LDO)
+
+/* Define the TPS65218 IRQ numbers */
+enum tps65218_irqs {
+ /* INT1 registers */
+ TPS65218_PRGC_IRQ,
+ TPS65218_CC_AQC_IRQ,
+ TPS65218_HOT_IRQ,
+ TPS65218_PB_IRQ,
+ TPS65218_AC_IRQ,
+ TPS65218_VPRG_IRQ,
+ TPS65218_INVALID1_IRQ,
+ TPS65218_INVALID2_IRQ,
+ /* INT2 registers */
+ TPS65218_LS1_I_IRQ,
+ TPS65218_LS2_I_IRQ,
+ TPS65218_LS3_I_IRQ,
+ TPS65218_LS1_F_IRQ,
+ TPS65218_LS2_F_IRQ,
+ TPS65218_LS3_F_IRQ,
+ TPS65218_INVALID3_IRQ,
+ TPS65218_INVALID4_IRQ,
+};
+
+/**
+ * struct tps_info - packages regulator constraints
+ * @id: Id of the regulator
+ * @name: Voltage regulator name
+ * @min_uV: minimum micro volts
+ * @max_uV: minimum micro volts
+ *
+ * This data is used to check the regualtor voltage limits while setting.
+ */
+struct tps_info {
+ int id;
+ const char *name;
+ int min_uV;
+ int max_uV;
+};
+
+/**
+ * struct tps65218 - tps65218 sub-driver chip access routines
+ *
+ * Device data may be used to access the TPS65218 chip
+ */
+
+struct tps65218 {
+ struct device *dev;
+ unsigned int id;
+
+ struct mutex tps_lock; /* lock guarding the data structure */
+ /* IRQ Data */
+ int irq;
+ u32 irq_mask;
+ struct regmap_irq_chip_data *irq_data;
+ struct regulator_desc desc[TPS65218_NUM_REGULATOR];
+ struct regulator_dev *rdev[TPS65218_NUM_REGULATOR];
+ struct tps_info *info[TPS65218_NUM_REGULATOR];
+ struct regmap *regmap;
+};
+
+int tps65218_reg_read(struct tps65218 *tps, unsigned int reg,
+ unsigned int *val);
+int tps65218_reg_write(struct tps65218 *tps, unsigned int reg,
+ unsigned int val, unsigned int level);
+int tps65218_set_bits(struct tps65218 *tps, unsigned int reg,
+ unsigned int mask, unsigned int val, unsigned int level);
+int tps65218_clear_bits(struct tps65218 *tps, unsigned int reg,
+ unsigned int mask, unsigned int level);
+
+#endif /* __LINUX_MFD_TPS65218_H */
--
1.7.9.5
Add DT bindings for TPS65218 PMIC.
Signed-off-by: Keerthy <[email protected]>
---
Documentation/devicetree/bindings/mfd/tps65218.txt | 58 ++++++++++++++++++++
.../devicetree/bindings/regulator/tps65218.txt | 22 ++++++++
2 files changed, 80 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/tps65218.txt
create mode 100644 Documentation/devicetree/bindings/regulator/tps65218.txt
diff --git a/Documentation/devicetree/bindings/mfd/tps65218.txt b/Documentation/devicetree/bindings/mfd/tps65218.txt
new file mode 100644
index 0000000..5845df7
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/tps65218.txt
@@ -0,0 +1,58 @@
+The TPS65218 Integrated Power Management Chips.
+These chips are connected to an I2C bus.
+
+Required properties:
+- compatible : Must be "ti,tps65218";
+- interrupts : This I2C device has an IRQ line connected to the main SoC
+- interrupt-controller : Since the tps65218 supports several interrupts
+ internally, it is considered as an interrupt controller cascaded to the SoC.
+- #interrupt-cells = <2>;
+- interrupt-parent : The parent interrupt controller GIC.
+
+Optional nodes:
+- TPS65218 chip has sub modules. Mainly the DCDCs and regulators.
+
+Example:
+/*
+ * Integrated Power Management Chip
+ */
+tps65218: tps65218@24 {
+ reg = <0x24>;
+ compatible = "ti,tps65218";
+ interrupts = <GIC_SPI 7 IRQ_TYPE_NONE>; /* NMIn */
+ interrupt-parent = <&gic>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+
+ dcdc1: regulator-dcdc1 {
+ compatible = "ti,tps65218-dcdc1";
+ /* VDD_CORE voltage limits min of OPP50 and max of OPP100 */
+ regulator-name = "vdd_core";
+ regulator-min-microvolt = <912000>;
+ regulator-max-microvolt = <1144000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ dcdc2: regulator-dcdc2 {
+ compatible = "ti,tps65218-dcdc2";
+ /* VDD_MPU voltage limits min of OPP50 and max of OPP_NITRO */
+ regulator-name = "vdd_mpu";
+ regulator-min-microvolt = <912000>;
+ regulator-max-microvolt = <1378000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ dcdc3: regulator-dcdc3 {
+ compatible = "ti,tps65218-dcdc3";
+ };
+
+ ldo1: regulator-ldo1 {
+ compatible = "ti,tps65218-ldo1";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+};
diff --git a/Documentation/devicetree/bindings/regulator/tps65218.txt b/Documentation/devicetree/bindings/regulator/tps65218.txt
new file mode 100644
index 0000000..17d200a
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/tps65218.txt
@@ -0,0 +1,22 @@
+TPS65218 family of regulators
+
+Required properties:
+For tps65218 regulators/LDOs
+- compatible:
+ - "ti,tps65218-dcdc1" for DCDC1
+ - "ti,tps65218-dcdc2" for DCDC2
+ - "ti,tps65218-dcdc3" for DCDC3
+ - "ti,tps65218-dcdc4" for DCDC4
+ - "ti,tps65218-dcdc5" for DCDC5
+ - "ti,tps65218-dcdc6" for DCDC6
+ - "ti,tps65218-ldo1" for LDO1 LDO
+
+Optional properties:
+- Any optional property defined in bindings/regulator/regulator.txt
+
+Example:
+ xyz: regulator-dcdc1 {
+ compatible = "ti,tps65218-dcdc1";
+ regulator-min-microvolt = <1000000>;
+ regulator-max-microvolt = <3000000>;
+ };
--
1.7.9.5
> The TPS65218 chip is a power management IC for Portable Navigation Systems
> and Tablet Computing devices. It contains the following components:
>
> - Regulators.
> - Over Temperature warning and Shut down.
>
> This patch adds support for tps65218 mfd device. At this time only
> the regulator functionality is made available.
>
> Signed-off-by: Keerthy <[email protected]>
> ---
> drivers/mfd/Kconfig | 15 +++
> drivers/mfd/Makefile | 1 +
> drivers/mfd/tps65218.c | 281 +++++++++++++++++++++++++++++++++++++++++
How much different is the TPS65218 to all the other TPS drivers?
drivers/mfd/tps6105x.c
drivers/mfd/tps65010.c
drivers/mfd/tps6507x.c
drivers/mfd/tps65090.c
drivers/mfd/tps65217.c
drivers/mfd/tps6586x.c
drivers/mfd/tps65910.c
drivers/mfd/tps65911-comparator.c
drivers/mfd/tps65912-core.c
drivers/mfd/tps65912-i2c.c
drivers/mfd/tps65912-irq.c
drivers/mfd/tps65912-spi.c
drivers/mfd/tps80031.c
Perhaps some consolidating might be in order?
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
On Thursday 06 February 2014 08:07 PM, Lee Jones wrote:
>> The TPS65218 chip is a power management IC for Portable Navigation Systems
>> and Tablet Computing devices. It contains the following components:
>>
>> - Regulators.
>> - Over Temperature warning and Shut down.
>>
>> This patch adds support for tps65218 mfd device. At this time only
>> the regulator functionality is made available.
>>
>> Signed-off-by: Keerthy <[email protected]>
>> ---
>> drivers/mfd/Kconfig | 15 +++
>> drivers/mfd/Makefile | 1 +
>> drivers/mfd/tps65218.c | 281 +++++++++++++++++++++++++++++++++++++++++
> How much different is the TPS65218 to all the other TPS drivers?
>
> drivers/mfd/tps6105x.c
> drivers/mfd/tps65010.c
> drivers/mfd/tps6507x.c
> drivers/mfd/tps65090.c
> drivers/mfd/tps65217.c
> drivers/mfd/tps6586x.c
> drivers/mfd/tps65910.c
> drivers/mfd/tps65911-comparator.c
> drivers/mfd/tps65912-core.c
> drivers/mfd/tps65912-i2c.c
> drivers/mfd/tps65912-irq.c
> drivers/mfd/tps65912-spi.c
> drivers/mfd/tps80031.c
>
> Perhaps some consolidating might be in order?
Well the closest one is tps65217.c but then register space is different
and components are different. So a new driver.
>
On Thu, 06 Feb 2014, Keerthy wrote:
> The TPS65218 chip is a power management IC for Portable Navigation Systems
> and Tablet Computing devices. It contains the following components:
>
> - Regulators.
> - Over Temperature warning and Shut down.
>
> This patch adds support for tps65218 mfd device. At this time only
> the regulator functionality is made available.
>
> Signed-off-by: Keerthy <[email protected]>
> ---
> drivers/mfd/Kconfig | 15 +++
> drivers/mfd/Makefile | 1 +
> drivers/mfd/tps65218.c | 281 +++++++++++++++++++++++++++++++++++++++++
> include/linux/mfd/tps65218.h | 284 ++++++++++++++++++++++++++++++++++++++++++
> 4 files changed, 581 insertions(+)
> create mode 100644 drivers/mfd/tps65218.c
> create mode 100644 include/linux/mfd/tps65218.h
Applied, thanks.
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
On Friday 07 February 2014 04:42 PM, Lee Jones wrote:
> On Thu, 06 Feb 2014, Keerthy wrote:
>
>> The TPS65218 chip is a power management IC for Portable Navigation Systems
>> and Tablet Computing devices. It contains the following components:
>>
>> - Regulators.
>> - Over Temperature warning and Shut down.
>>
>> This patch adds support for tps65218 mfd device. At this time only
>> the regulator functionality is made available.
>>
>> Signed-off-by: Keerthy <[email protected]>
>> ---
>> drivers/mfd/Kconfig | 15 +++
>> drivers/mfd/Makefile | 1 +
>> drivers/mfd/tps65218.c | 281 +++++++++++++++++++++++++++++++++++++++++
>> include/linux/mfd/tps65218.h | 284 ++++++++++++++++++++++++++++++++++++++++++
>> 4 files changed, 581 insertions(+)
>> create mode 100644 drivers/mfd/tps65218.c
>> create mode 100644 include/linux/mfd/tps65218.h
> Applied, thanks.
>
Thanks Lee Jones!
Hi Mark,
On Thursday 06 February 2014 11:20 AM, Keerthy wrote:
> This patch adds support for TPS65218 PMIC regulators.
>
> The regulators set consists of 6 DCDCs and 1 LDO. The output
> voltages are configurable and are meant to supply power to the
> main processor and other components.
If there are no further comments on this could you
please pull this?
Regards,
Keerthy
> Signed-off-by: Keerthy <[email protected]>
> ---
> drivers/regulator/Kconfig | 9 +
> drivers/regulator/Makefile | 1 +
> drivers/regulator/tps65218-regulator.c | 304 ++++++++++++++++++++++++++++++++
> 3 files changed, 314 insertions(+)
> create mode 100644 drivers/regulator/tps65218-regulator.c
>
> diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
> index 6a79328..b05da880 100644
> --- a/drivers/regulator/Kconfig
> +++ b/drivers/regulator/Kconfig
> @@ -513,6 +513,15 @@ config REGULATOR_TPS65217
> voltage regulators. It supports software based voltage control
> for different voltage domains
>
> +config REGULATOR_TPS65218
> + tristate "TI TPS65218 Power regulators"
> + depends on MFD_TPS65218
> + help
> + This driver supports TPS65218 voltage regulator chips. TPS65218
> + provides six step-down converters and one general-purpose LDO
> + voltage regulators. It supports software based voltage control
> + for different voltage domains
> +
> config REGULATOR_TPS6524X
> tristate "TI TPS6524X Power regulators"
> depends on SPI
> diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile
> index 979f9dd..ba801a5 100644
> --- a/drivers/regulator/Makefile
> +++ b/drivers/regulator/Makefile
> @@ -67,6 +67,7 @@ obj-$(CONFIG_REGULATOR_TPS65023) += tps65023-regulator.o
> obj-$(CONFIG_REGULATOR_TPS6507X) += tps6507x-regulator.o
> obj-$(CONFIG_REGULATOR_TPS65090) += tps65090-regulator.o
> obj-$(CONFIG_REGULATOR_TPS65217) += tps65217-regulator.o
> +obj-$(CONFIG_REGULATOR_TPS65218) += tps65218-regulator.o
> obj-$(CONFIG_REGULATOR_TPS6524X) += tps6524x-regulator.o
> obj-$(CONFIG_REGULATOR_TPS6586X) += tps6586x-regulator.o
> obj-$(CONFIG_REGULATOR_TPS65910) += tps65910-regulator.o
> diff --git a/drivers/regulator/tps65218-regulator.c b/drivers/regulator/tps65218-regulator.c
> new file mode 100644
> index 0000000..39fb189
> --- /dev/null
> +++ b/drivers/regulator/tps65218-regulator.c
> @@ -0,0 +1,304 @@
> +/*
> + * tps65218-regulator.c
> + *
> + * Regulator driver for TPS65218 PMIC
> + *
> + * Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com/
> + *
> + * This program is free software; you can redistribute it and/or
> + * modify it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> + *
> + * This program is distributed "as is" WITHOUT ANY WARRANTY of any
> + * kind, whether expressed or implied; without even the implied warranty
> + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> + * GNU General Public License version 2 for more details.
> + */
> +
> +#include <linux/kernel.h>
> +#include <linux/module.h>
> +#include <linux/device.h>
> +#include <linux/init.h>
> +#include <linux/err.h>
> +#include <linux/platform_device.h>
> +#include <linux/of_device.h>
> +#include <linux/regulator/of_regulator.h>
> +#include <linux/regulator/driver.h>
> +#include <linux/regulator/machine.h>
> +#include <linux/mfd/tps65218.h>
> +
> +static unsigned int tps65218_ramp_delay = 4000;
> +
> +enum tps65218_regulators { DCDC1, DCDC2, DCDC3, DCDC4, DCDC5, DCDC6, LDO1 };
> +
> +#define TPS65218_REGULATOR(_name, _id, _ops, _n, _vr, _vm, _er, _em, _t, \
> + _lr, _nlr) \
> + { \
> + .name = _name, \
> + .id = _id, \
> + .ops = &_ops, \
> + .n_voltages = _n, \
> + .type = REGULATOR_VOLTAGE, \
> + .owner = THIS_MODULE, \
> + .vsel_reg = _vr, \
> + .vsel_mask = _vm, \
> + .enable_reg = _er, \
> + .enable_mask = _em, \
> + .volt_table = _t, \
> + .linear_ranges = _lr, \
> + .n_linear_ranges = _nlr, \
> + } \
> +
> +#define TPS65218_INFO(_id, _nm, _min, _max) \
> + { \
> + .id = _id, \
> + .name = _nm, \
> + .min_uV = _min, \
> + .max_uV = _max, \
> + }
> +
> +static const struct regulator_linear_range dcdc1_dcdc2_ranges[] = {
> + REGULATOR_LINEAR_RANGE(850000, 0x0, 0x32, 10000),
> + REGULATOR_LINEAR_RANGE(1375000, 0x33, 0x3f, 25000),
> +};
> +
> +static const struct regulator_linear_range ldo1_dcdc3_ranges[] = {
> + REGULATOR_LINEAR_RANGE(900000, 0x0, 0x1a, 25000),
> + REGULATOR_LINEAR_RANGE(1600000, 0x1b, 0x3f, 50000),
> +};
> +
> +static const struct regulator_linear_range dcdc4_ranges[] = {
> + REGULATOR_LINEAR_RANGE(1175000, 0x0, 0xf, 25000),
> + REGULATOR_LINEAR_RANGE(1550000, 0x10, 0x34, 50000),
> +};
> +
> +static struct tps_info tps65218_pmic_regs[] = {
> + TPS65218_INFO(0, "DCDC1", 850000, 167500),
> + TPS65218_INFO(1, "DCDC2", 850000, 1675000),
> + TPS65218_INFO(2, "DCDC3", 900000, 3400000),
> + TPS65218_INFO(3, "DCDC4", 1175000, 3400000),
> + TPS65218_INFO(4, "DCDC5", 1000000, 1000000),
> + TPS65218_INFO(5, "DCDC6", 1800000, 1800000),
> + TPS65218_INFO(6, "LDO1", 900000, 3400000),
> +};
> +
> +#define TPS65218_OF_MATCH(comp, label) \
> + { \
> + .compatible = comp, \
> + .data = &label, \
> + }
> +
> +static const struct of_device_id tps65218_of_match[] = {
> + TPS65218_OF_MATCH("ti,tps65218-dcdc1", tps65218_pmic_regs[DCDC1]),
> + TPS65218_OF_MATCH("ti,tps65218-dcdc2", tps65218_pmic_regs[DCDC2]),
> + TPS65218_OF_MATCH("ti,tps65218-dcdc3", tps65218_pmic_regs[DCDC3]),
> + TPS65218_OF_MATCH("ti,tps65218-dcdc4", tps65218_pmic_regs[DCDC4]),
> + TPS65218_OF_MATCH("ti,tps65218-dcdc5", tps65218_pmic_regs[DCDC5]),
> + TPS65218_OF_MATCH("ti,tps65218-dcdc6", tps65218_pmic_regs[DCDC6]),
> + TPS65218_OF_MATCH("ti,tps65218-ldo1", tps65218_pmic_regs[LDO1]),
> +};
> +MODULE_DEVICE_TABLE(of, tps65218_of_match);
> +
> +static int tps65218_pmic_set_voltage_sel(struct regulator_dev *dev,
> + unsigned selector)
> +{
> + int ret;
> + struct tps65218 *tps = rdev_get_drvdata(dev);
> + unsigned int rid = rdev_get_id(dev);
> +
> + /* Set the voltage based on vsel value and write protect level is 2 */
> + ret = tps65218_set_bits(tps, dev->desc->vsel_reg, dev->desc->vsel_mask,
> + selector, TPS65218_PROTECT_L1);
> +
> + /* Set GO bit for DCDC1/2 to initiate voltage transistion */
> + switch (rid) {
> + case TPS65218_DCDC_1:
> + case TPS65218_DCDC_2:
> + ret = tps65218_set_bits(tps, TPS65218_REG_CONTRL_SLEW_RATE,
> + TPS65218_SLEW_RATE_GO,
> + TPS65218_SLEW_RATE_GO,
> + TPS65218_PROTECT_L1);
> + break;
> + }
> +
> + return ret;
> +}
> +
> +static int tps65218_pmic_enable(struct regulator_dev *dev)
> +{
> + struct tps65218 *tps = rdev_get_drvdata(dev);
> + unsigned int rid = rdev_get_id(dev);
> +
> + if (rid < TPS65218_DCDC_1 || rid > TPS65218_LDO_1)
> + return -EINVAL;
> +
> + /* Enable the regulator and password protection is level 1 */
> + return tps65218_set_bits(tps, dev->desc->enable_reg,
> + dev->desc->enable_mask, dev->desc->enable_mask,
> + TPS65218_PROTECT_L1);
> +}
> +
> +static int tps65218_pmic_disable(struct regulator_dev *dev)
> +{
> + struct tps65218 *tps = rdev_get_drvdata(dev);
> + unsigned int rid = rdev_get_id(dev);
> +
> + if (rid < TPS65218_DCDC_1 || rid > TPS65218_LDO_1)
> + return -EINVAL;
> +
> + /* Disable the regulator and password protection is level 1 */
> + return tps65218_clear_bits(tps, dev->desc->enable_reg,
> + dev->desc->enable_mask, TPS65218_PROTECT_L1);
> +}
> +
> +static int tps65218_set_voltage_time_sel(struct regulator_dev *rdev,
> + unsigned int old_selector, unsigned int new_selector)
> +{
> + int old_uv, new_uv;
> +
> + old_uv = regulator_list_voltage_linear_range(rdev, old_selector);
> + if (old_uv < 0)
> + return old_uv;
> +
> + new_uv = regulator_list_voltage_linear_range(rdev, new_selector);
> + if (new_uv < 0)
> + return new_uv;
> +
> + return DIV_ROUND_UP(abs(old_uv - new_uv), tps65218_ramp_delay);
> +}
> +
> +/* Operations permitted on DCDC1, DCDC2 */
> +static struct regulator_ops tps65218_dcdc12_ops = {
> + .is_enabled = regulator_is_enabled_regmap,
> + .enable = tps65218_pmic_enable,
> + .disable = tps65218_pmic_disable,
> + .get_voltage_sel = regulator_get_voltage_sel_regmap,
> + .set_voltage_sel = tps65218_pmic_set_voltage_sel,
> + .list_voltage = regulator_list_voltage_linear_range,
> + .map_voltage = regulator_map_voltage_linear_range,
> + .set_voltage_time_sel = tps65218_set_voltage_time_sel,
> +};
> +
> +/* Operations permitted on DCDC3, DCDC4 and LDO1 */
> +static struct regulator_ops tps65218_ldo1_dcdc34_ops = {
> + .is_enabled = regulator_is_enabled_regmap,
> + .enable = tps65218_pmic_enable,
> + .disable = tps65218_pmic_disable,
> + .get_voltage_sel = regulator_get_voltage_sel_regmap,
> + .set_voltage_sel = tps65218_pmic_set_voltage_sel,
> + .list_voltage = regulator_list_voltage_linear_range,
> + .map_voltage = regulator_map_voltage_linear_range,
> +};
> +
> +/* Operations permitted on DCDC5, DCDC6 */
> +static struct regulator_ops tps65218_dcdc56_pmic_ops = {
> + .is_enabled = regulator_is_enabled_regmap,
> + .enable = tps65218_pmic_enable,
> + .disable = tps65218_pmic_disable,
> +};
> +
> +static const struct regulator_desc regulators[] = {
> + TPS65218_REGULATOR("DCDC1", TPS65218_DCDC_1, tps65218_dcdc12_ops, 64,
> + TPS65218_REG_CONTROL_DCDC1,
> + TPS65218_CONTROL_DCDC1_MASK,
> + TPS65218_REG_ENABLE1, TPS65218_ENABLE1_DC1_EN, NULL,
> + dcdc1_dcdc2_ranges, 2),
> + TPS65218_REGULATOR("DCDC2", TPS65218_DCDC_2, tps65218_dcdc12_ops, 64,
> + TPS65218_REG_CONTROL_DCDC2,
> + TPS65218_CONTROL_DCDC2_MASK,
> + TPS65218_REG_ENABLE1, TPS65218_ENABLE1_DC2_EN, NULL,
> + dcdc1_dcdc2_ranges, 2),
> + TPS65218_REGULATOR("DCDC3", TPS65218_DCDC_3, tps65218_ldo1_dcdc34_ops,
> + 64, TPS65218_REG_CONTROL_DCDC3,
> + TPS65218_CONTROL_DCDC3_MASK, TPS65218_REG_ENABLE1,
> + TPS65218_ENABLE1_DC3_EN, NULL,
> + ldo1_dcdc3_ranges, 2),
> + TPS65218_REGULATOR("DCDC4", TPS65218_DCDC_4, tps65218_ldo1_dcdc34_ops,
> + 53, TPS65218_REG_CONTROL_DCDC4,
> + TPS65218_CONTROL_DCDC4_MASK,
> + TPS65218_REG_ENABLE1, TPS65218_ENABLE1_DC4_EN, NULL,
> + dcdc4_ranges, 2),
> + TPS65218_REGULATOR("DCDC5", TPS65218_DCDC_5, tps65218_dcdc56_pmic_ops,
> + 1, -1, -1, TPS65218_REG_ENABLE1,
> + TPS65218_ENABLE1_DC5_EN, NULL, NULL, 0),
> + TPS65218_REGULATOR("DCDC6", TPS65218_DCDC_6, tps65218_dcdc56_pmic_ops,
> + 1, -1, -1, TPS65218_REG_ENABLE1,
> + TPS65218_ENABLE1_DC6_EN, NULL, NULL, 0),
> + TPS65218_REGULATOR("LDO1", TPS65218_LDO_1, tps65218_ldo1_dcdc34_ops, 64,
> + TPS65218_REG_CONTROL_DCDC4,
> + TPS65218_CONTROL_LDO1_MASK, TPS65218_REG_ENABLE2,
> + TPS65218_ENABLE2_LDO1_EN, NULL, ldo1_dcdc3_ranges,
> + 2),
> +};
> +
> +static int tps65218_regulator_probe(struct platform_device *pdev)
> +{
> + struct tps65218 *tps = dev_get_drvdata(pdev->dev.parent);
> + struct regulator_init_data *init_data;
> + const struct tps_info *template;
> + struct regulator_dev *rdev;
> + const struct of_device_id *match;
> + struct regulator_config config = { };
> + int id;
> +
> + match = of_match_device(tps65218_of_match, &pdev->dev);
> + if (match) {
> + template = match->data;
> + id = template->id;
> + init_data = of_get_regulator_init_data(&pdev->dev,
> + pdev->dev.of_node);
> + } else {
> + return -ENODEV;
> + }
> +
> + platform_set_drvdata(pdev, tps);
> +
> + tps->info[id] = &tps65218_pmic_regs[id];
> + config.dev = &pdev->dev;
> + config.init_data = init_data;
> + config.driver_data = tps;
> + config.regmap = tps->regmap;
> +
> + rdev = devm_regulator_register(&pdev->dev, ®ulators[id], &config);
> + if (IS_ERR(rdev)) {
> + dev_err(tps->dev, "failed to register %s regulator\n",
> + pdev->name);
> + return PTR_ERR(rdev);
> + }
> +
> + /* Save regulator */
> + tps->rdev[id] = rdev;
> +
> + return 0;
> +}
> +
> +static int tps65218_regulator_remove(struct platform_device *pdev)
> +{
> + struct tps65218 *tps = platform_get_drvdata(pdev);
> + const struct of_device_id *match;
> + const struct tps_info *template;
> +
> + match = of_match_device(tps65218_of_match, &pdev->dev);
> + template = match->data;
> + regulator_unregister(tps->rdev[template->id]);
> + platform_set_drvdata(pdev, NULL);
> +
> + return 0;
> +}
> +
> +static struct platform_driver tps65218_regulator_driver = {
> + .driver = {
> + .name = "tps65218-pmic",
> + .owner = THIS_MODULE,
> + .of_match_table = of_match_ptr(tps65218_of_match),
> + },
> + .probe = tps65218_regulator_probe,
> + .remove = tps65218_regulator_remove,
> +};
> +
> +module_platform_driver(tps65218_regulator_driver);
> +
> +MODULE_AUTHOR("J Keerthy <[email protected]>");
> +MODULE_DESCRIPTION("TPS65218 voltage regulator driver");
> +MODULE_ALIAS("platform:tps65218-pmic");
> +MODULE_LICENSE("GPL v2");
On Fri, Feb 07, 2014 at 07:28:29PM +0530, Keerthy wrote:
> On Thursday 06 February 2014 11:20 AM, Keerthy wrote:
> If there are no further comments on this could you
> please pull this?
You've sent this mail a day after sending the original patch, don't do
that.
On Thu, Feb 06, 2014 at 11:20:13AM +0530, Keerthy wrote:
> This patch adds support for TPS65218 PMIC regulators.
>
> The regulators set consists of 6 DCDCs and 1 LDO. The output
> voltages are configurable and are meant to supply power to the
> main processor and other components.
Applied, thanks. Please use subject lines consistent with the
subsystem.
On Saturday 15 February 2014 01:51 AM, Mark Brown wrote:
> On Thu, Feb 06, 2014 at 11:20:13AM +0530, Keerthy wrote:
>> This patch adds support for TPS65218 PMIC regulators.
>>
>> The regulators set consists of 6 DCDCs and 1 LDO. The output
>> voltages are configurable and are meant to supply power to the
>> main processor and other components.
> Applied, thanks. Please use subject lines consistent with the
> subsystem.
Sure. Thanks a lot Mark.