[PATCH v4 7/7] power: regulator: tps65911: add regulator support
Svyatoslav Ryhel
clamor95 at gmail.com
Mon Jul 24 12:22:44 CEST 2023
The driver provides regulator set/get voltage enable/disable
functions for TI TPS5911 PMIC.
Signed-off-by: Svyatoslav Ryhel <clamor95 at gmail.com>
Reviewed-by: Simon Glass <sjg at chromium.org>
---
drivers/power/regulator/Kconfig | 11 +
drivers/power/regulator/Makefile | 1 +
drivers/power/regulator/tps65911_regulator.c | 397 +++++++++++++++++++
3 files changed, 409 insertions(+)
create mode 100644 drivers/power/regulator/tps65911_regulator.c
diff --git a/drivers/power/regulator/Kconfig b/drivers/power/regulator/Kconfig
index 6454c54855..102ec7bc5f 100644
--- a/drivers/power/regulator/Kconfig
+++ b/drivers/power/regulator/Kconfig
@@ -346,6 +346,17 @@ config DM_REGULATOR_TPS65910
regulator types of the TPS65910 (BUCK, BOOST and LDO). It implements
the get/set api for value and enable.
+config DM_REGULATOR_TPS65911
+ bool "Enable driver for TPS65911 PMIC regulators"
+ depends on DM_PMIC_TPS65910
+ ---help---
+ This config enables implementation of driver-model regulator
+ uclass features for the TPS65911 PMIC. The driver supports Step-Down
+ DC-DC Converters for Processor Cores (VDD1 and VDD2), Step-Down DC-DC
+ Converter for I/O Power (VIO), Controller for External FETs (VDDCtrl)
+ and LDO Voltage Regulators found in TPS65911 PMIC and implements
+ get/set api for value and enable.
+
config DM_REGULATOR_TPS62360
bool "Enable driver for TPS6236x Power Regulator"
depends on DM_REGULATOR
diff --git a/drivers/power/regulator/Makefile b/drivers/power/regulator/Makefile
index 3ef55dc534..f79932d833 100644
--- a/drivers/power/regulator/Makefile
+++ b/drivers/power/regulator/Makefile
@@ -32,6 +32,7 @@ obj-$(CONFIG_$(SPL_)DM_REGULATOR_LP873X) += lp873x_regulator.o
obj-$(CONFIG_$(SPL_)DM_REGULATOR_LP87565) += lp87565_regulator.o
obj-$(CONFIG_$(SPL_)DM_REGULATOR_STM32_VREFBUF) += stm32-vrefbuf.o
obj-$(CONFIG_DM_REGULATOR_TPS65910) += tps65910_regulator.o
+obj-$(CONFIG_$(SPL_)DM_REGULATOR_TPS65911) += tps65911_regulator.o
obj-$(CONFIG_DM_REGULATOR_TPS62360) += tps62360_regulator.o
obj-$(CONFIG_$(SPL_)DM_REGULATOR_TPS80031) += tps80031_regulator.o
obj-$(CONFIG_$(SPL_)DM_REGULATOR_STPMIC1) += stpmic1.o
diff --git a/drivers/power/regulator/tps65911_regulator.c b/drivers/power/regulator/tps65911_regulator.c
new file mode 100644
index 0000000000..ba80ed7c54
--- /dev/null
+++ b/drivers/power/regulator/tps65911_regulator.c
@@ -0,0 +1,397 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright(C) 2023 Svyatoslav Ryhel <clamor95 at gmail.com>
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <log.h>
+#include <power/pmic.h>
+#include <power/regulator.h>
+#include <power/tps65910_pmic.h>
+
+/* fist row is control registers, second is voltage registers */
+static const char tps65911_vdd_reg[][TPS65911_VDD_NUM] = {
+ { TPS65911_REG_VDD1, TPS65911_REG_VDD2,
+ TPS65911_REG_VDDCTRL, TPS65911_REG_VIO },
+ { TPS65911_REG_VDD1_OP, TPS65911_REG_VDD2_OP,
+ TPS65911_REG_VDDCTRL_OP, 0x00 },
+};
+
+static const char tps65911_ldo_reg[TPS65911_LDO_NUM] = {
+ TPS65911_REG_LDO1, TPS65911_REG_LDO2, TPS65911_REG_LDO3,
+ TPS65911_REG_LDO4, TPS65911_REG_LDO5, TPS65911_REG_LDO6,
+ TPS65911_REG_LDO7, TPS65911_REG_LDO8
+};
+
+static int tps65911_regulator_enable(struct udevice *dev, int op, bool *enable)
+{
+ struct dm_regulator_uclass_plat *uc_pdata =
+ dev_get_uclass_plat(dev);
+ u32 adr = uc_pdata->ctrl_reg;
+ int val, ret;
+
+ val = pmic_reg_read(dev->parent, adr);
+ if (val < 0)
+ return val;
+
+ if (op == PMIC_OP_GET) {
+ if (val & TPS65910_SUPPLY_STATE_ON)
+ *enable = true;
+ else
+ *enable = false;
+
+ return 0;
+ } else if (op == PMIC_OP_SET) {
+ val &= ~TPS65910_SUPPLY_STATE_MASK;
+
+ if (*enable)
+ val |= TPS65910_SUPPLY_STATE_ON;
+
+ ret = pmic_reg_write(dev->parent, adr, val);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
+static int tps65911_get_enable(struct udevice *dev)
+{
+ bool enable = false;
+ int ret;
+
+ ret = tps65911_regulator_enable(dev, PMIC_OP_GET, &enable);
+ if (ret)
+ return ret;
+
+ return enable;
+}
+
+static int tps65911_set_enable(struct udevice *dev, bool enable)
+{
+ return tps65911_regulator_enable(dev, PMIC_OP_SET, &enable);
+}
+
+/**
+ * tps65911_vdd_volt2hex() - convert voltage in uV into
+ * applicable to register hex value
+ *
+ * @uV: voltage in uV
+ *
+ * Return: voltage in hex on success, -ve on failure
+ */
+static int tps65911_vdd_volt2hex(int uV)
+{
+ if (uV > TPS65911_VDD_VOLT_MAX)
+ return -EINVAL;
+
+ if (uV < TPS65911_VDD_VOLT_MIN)
+ uV = TPS65911_VDD_VOLT_MIN;
+
+ return (uV - TPS65911_VDD_VOLT_BASE) / 12500;
+}
+
+/**
+ * tps65911_vdd_hex2volt() - convert register hex value into
+ * actual voltage in uV
+ *
+ * @hex: hex value of register
+ *
+ * Return: voltage in uV on success, -ve on failure
+ */
+static int tps65911_vdd_hex2volt(int hex)
+{
+ if (hex > TPS65910_VDD_SEL_MAX)
+ return -EINVAL;
+
+ if (hex < TPS65910_VDD_SEL_MIN)
+ hex = TPS65910_VDD_SEL_MIN;
+
+ return TPS65911_VDD_VOLT_BASE + hex * 12500;
+}
+
+static int tps65911_vio_range[4] = {
+ 1500000, 1800000, 2500000, 3300000
+};
+
+static int tps65911_vio_val(struct udevice *dev, int op, int *uV)
+{
+ struct dm_regulator_uclass_plat *uc_pdata =
+ dev_get_uclass_plat(dev);
+ u32 adr = uc_pdata->volt_reg;
+ int i, val;
+
+ val = pmic_reg_read(dev->parent, adr);
+ if (val < 0)
+ return val;
+
+ if (op == PMIC_OP_GET) {
+ *uV = 0;
+
+ val &= TPS65910_SEL_MASK;
+
+ *uV = tps65911_vio_range[val >> 2];
+
+ return 0;
+ }
+
+ val &= ~TPS65910_SEL_MASK;
+
+ for (i = 0; i < ARRAY_SIZE(tps65911_vio_range); i++)
+ if (*uV <= tps65911_vio_range[i])
+ break;
+
+ return pmic_reg_write(dev->parent, adr, val | i << 2);
+}
+
+static int tps65911_vdd_val(struct udevice *dev, int op, int *uV)
+{
+ struct dm_regulator_uclass_plat *uc_pdata =
+ dev_get_uclass_plat(dev);
+ u32 adr = uc_pdata->volt_reg;
+ int val, ret;
+
+ /* in case vdd is vio */
+ if (!adr)
+ return tps65911_vio_val(dev, op, uV);
+
+ val = pmic_reg_read(dev->parent, adr);
+ if (val < 0)
+ return val;
+
+ if (op == PMIC_OP_GET) {
+ *uV = 0;
+
+ ret = tps65911_vdd_hex2volt(val);
+ if (ret < 0)
+ return ret;
+
+ *uV = ret;
+ return 0;
+ }
+
+ val = tps65911_vdd_volt2hex(*uV);
+ if (val < 0)
+ return val;
+
+ return pmic_reg_write(dev->parent, adr, val);
+}
+
+static int tps65911_vdd_probe(struct udevice *dev)
+{
+ struct dm_regulator_uclass_plat *uc_pdata =
+ dev_get_uclass_plat(dev);
+
+ uc_pdata->type = REGULATOR_TYPE_BUCK;
+
+ /* check for vddctrl and vddio cases */
+ if (!strcmp("vddctrl", dev->name)) {
+ uc_pdata->ctrl_reg = tps65911_vdd_reg[0][2];
+ uc_pdata->volt_reg = tps65911_vdd_reg[1][2];
+ return 0;
+ }
+
+ if (!strcmp("vddio", dev->name)) {
+ uc_pdata->ctrl_reg = tps65911_vdd_reg[0][3];
+ uc_pdata->volt_reg = tps65911_vdd_reg[1][3];
+ return 0;
+ }
+
+ if (dev->driver_data > 0) {
+ u8 idx = dev->driver_data - 1;
+
+ uc_pdata->ctrl_reg = tps65911_vdd_reg[0][idx];
+ uc_pdata->volt_reg = tps65911_vdd_reg[1][idx];
+ }
+
+ return 0;
+}
+
+static int vdd_get_value(struct udevice *dev)
+{
+ int uV;
+ int ret;
+
+ ret = tps65911_vdd_val(dev, PMIC_OP_GET, &uV);
+ if (ret)
+ return ret;
+
+ return uV;
+}
+
+static int vdd_set_value(struct udevice *dev, int uV)
+{
+ return tps65911_vdd_val(dev, PMIC_OP_SET, &uV);
+}
+
+static const struct dm_regulator_ops tps65911_vdd_ops = {
+ .get_value = vdd_get_value,
+ .set_value = vdd_set_value,
+ .get_enable = tps65911_get_enable,
+ .set_enable = tps65911_set_enable,
+};
+
+U_BOOT_DRIVER(tps65911_vdd) = {
+ .name = TPS65911_VDD_DRIVER,
+ .id = UCLASS_REGULATOR,
+ .ops = &tps65911_vdd_ops,
+ .probe = tps65911_vdd_probe,
+};
+
+/**
+ * tps65911_ldo_volt2hex() - convert voltage in uV into
+ * applicable to register hex value
+ *
+ * @idx: regulator index
+ * @uV: voltage in uV
+ *
+ * Return: voltage in hex on success, -ve on failure
+ */
+static int tps65911_ldo_volt2hex(int idx, int uV)
+{
+ int step;
+
+ if (uV > TPS65911_LDO_VOLT_MAX)
+ return -EINVAL;
+
+ if (uV < TPS65911_LDO_VOLT_BASE)
+ uV = TPS65911_LDO_VOLT_BASE;
+
+ switch (idx) {
+ case 1:
+ case 2:
+ case 4:
+ step = TPS65911_LDO124_VOLT_STEP;
+ break;
+ case 3:
+ case 5:
+ case 6:
+ case 7:
+ case 8:
+ step = TPS65911_LDO358_VOLT_STEP;
+ break;
+ default:
+ return -EINVAL;
+ };
+
+ return ((uV - TPS65911_LDO_VOLT_BASE) / step) << 2;
+}
+
+/**
+ * tps65911_ldo_hex2volt() - convert register hex value into
+ * actual voltage in uV
+ *
+ * @idx: regulator index
+ * @hex: hex value of register
+ *
+ * Return: voltage in uV on success, -ve on failure
+ */
+static int tps65911_ldo_hex2volt(int idx, int hex)
+{
+ int step;
+
+ switch (idx) {
+ case 1:
+ case 2:
+ case 4:
+ if (hex > TPS65911_LDO124_VOLT_MAX_HEX)
+ return -EINVAL;
+
+ step = TPS65911_LDO124_VOLT_STEP;
+ break;
+ case 3:
+ case 5:
+ case 6:
+ case 7:
+ case 8:
+ if (hex > TPS65911_LDO358_VOLT_MAX_HEX)
+ return -EINVAL;
+
+ if (hex < TPS65911_LDO358_VOLT_MIN_HEX)
+ hex = TPS65911_LDO358_VOLT_MIN_HEX;
+
+ step = TPS65911_LDO358_VOLT_STEP;
+ break;
+ default:
+ return -EINVAL;
+ };
+
+ return TPS65911_LDO_VOLT_BASE + hex * step;
+}
+
+static int tps65911_ldo_val(struct udevice *dev, int op, int *uV)
+{
+ struct dm_regulator_uclass_plat *uc_pdata =
+ dev_get_uclass_plat(dev);
+ u32 adr = uc_pdata->ctrl_reg;
+ int idx = dev->driver_data;
+ int val, hex, ret;
+
+ val = pmic_reg_read(dev->parent, adr);
+ if (val < 0)
+ return val;
+
+ if (op == PMIC_OP_GET) {
+ *uV = 0;
+ val &= TPS65911_LDO_SEL_MASK;
+
+ ret = tps65911_ldo_hex2volt(idx, val >> 2);
+ if (ret < 0)
+ return ret;
+
+ *uV = ret;
+ return 0;
+ }
+
+ hex = tps65911_ldo_volt2hex(idx, *uV);
+ if (hex < 0)
+ return hex;
+
+ val &= ~TPS65911_LDO_SEL_MASK;
+
+ return pmic_reg_write(dev->parent, adr, val | hex);
+}
+
+static int tps65911_ldo_probe(struct udevice *dev)
+{
+ struct dm_regulator_uclass_plat *uc_pdata =
+ dev_get_uclass_plat(dev);
+ u8 idx = dev->driver_data - 1;
+
+ uc_pdata->type = REGULATOR_TYPE_LDO;
+ uc_pdata->ctrl_reg = tps65911_ldo_reg[idx];
+
+ return 0;
+}
+
+static int ldo_get_value(struct udevice *dev)
+{
+ int uV;
+ int ret;
+
+ ret = tps65911_ldo_val(dev, PMIC_OP_GET, &uV);
+ if (ret)
+ return ret;
+
+ return uV;
+}
+
+static int ldo_set_value(struct udevice *dev, int uV)
+{
+ return tps65911_ldo_val(dev, PMIC_OP_SET, &uV);
+}
+
+static const struct dm_regulator_ops tps65911_ldo_ops = {
+ .get_value = ldo_get_value,
+ .set_value = ldo_set_value,
+ .get_enable = tps65911_get_enable,
+ .set_enable = tps65911_set_enable,
+};
+
+U_BOOT_DRIVER(tps65911_ldo) = {
+ .name = TPS65911_LDO_DRIVER,
+ .id = UCLASS_REGULATOR,
+ .ops = &tps65911_ldo_ops,
+ .probe = tps65911_ldo_probe,
+};
--
2.39.2
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