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-rw-r--r--drivers/regulator/as3722-regulator.c845
1 files changed, 845 insertions, 0 deletions
diff --git a/drivers/regulator/as3722-regulator.c b/drivers/regulator/as3722-regulator.c
new file mode 100644
index 000000000..7bebf9ce6
--- /dev/null
+++ b/drivers/regulator/as3722-regulator.c
@@ -0,0 +1,845 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Voltage regulator support for AMS AS3722 PMIC
+ *
+ * Copyright (C) 2013 ams
+ *
+ * Author: Florian Lobmaier <florian.lobmaier@ams.com>
+ * Author: Laxman Dewangan <ldewangan@nvidia.com>
+ */
+
+#include <linux/err.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/mfd/as3722.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/regulator/of_regulator.h>
+#include <linux/slab.h>
+
+/* Regulator IDs */
+enum as3722_regulators_id {
+ AS3722_REGULATOR_ID_SD0,
+ AS3722_REGULATOR_ID_SD1,
+ AS3722_REGULATOR_ID_SD2,
+ AS3722_REGULATOR_ID_SD3,
+ AS3722_REGULATOR_ID_SD4,
+ AS3722_REGULATOR_ID_SD5,
+ AS3722_REGULATOR_ID_SD6,
+ AS3722_REGULATOR_ID_LDO0,
+ AS3722_REGULATOR_ID_LDO1,
+ AS3722_REGULATOR_ID_LDO2,
+ AS3722_REGULATOR_ID_LDO3,
+ AS3722_REGULATOR_ID_LDO4,
+ AS3722_REGULATOR_ID_LDO5,
+ AS3722_REGULATOR_ID_LDO6,
+ AS3722_REGULATOR_ID_LDO7,
+ AS3722_REGULATOR_ID_LDO9,
+ AS3722_REGULATOR_ID_LDO10,
+ AS3722_REGULATOR_ID_LDO11,
+ AS3722_REGULATOR_ID_MAX,
+};
+
+struct as3722_register_mapping {
+ u8 regulator_id;
+ const char *name;
+ const char *sname;
+ u8 vsel_reg;
+ u8 vsel_mask;
+ int n_voltages;
+ u32 enable_reg;
+ u8 enable_mask;
+ u32 control_reg;
+ u8 mode_mask;
+ u32 sleep_ctrl_reg;
+ u8 sleep_ctrl_mask;
+};
+
+struct as3722_regulator_config_data {
+ struct regulator_init_data *reg_init;
+ bool enable_tracking;
+ int ext_control;
+};
+
+struct as3722_regulators {
+ struct device *dev;
+ struct as3722 *as3722;
+ struct regulator_desc desc[AS3722_REGULATOR_ID_MAX];
+ struct as3722_regulator_config_data
+ reg_config_data[AS3722_REGULATOR_ID_MAX];
+};
+
+static const struct as3722_register_mapping as3722_reg_lookup[] = {
+ {
+ .regulator_id = AS3722_REGULATOR_ID_SD0,
+ .name = "as3722-sd0",
+ .vsel_reg = AS3722_SD0_VOLTAGE_REG,
+ .vsel_mask = AS3722_SD_VSEL_MASK,
+ .enable_reg = AS3722_SD_CONTROL_REG,
+ .enable_mask = AS3722_SDn_CTRL(0),
+ .sleep_ctrl_reg = AS3722_ENABLE_CTRL1_REG,
+ .sleep_ctrl_mask = AS3722_SD0_EXT_ENABLE_MASK,
+ .control_reg = AS3722_SD0_CONTROL_REG,
+ .mode_mask = AS3722_SD0_MODE_FAST,
+ },
+ {
+ .regulator_id = AS3722_REGULATOR_ID_SD1,
+ .name = "as3722-sd1",
+ .vsel_reg = AS3722_SD1_VOLTAGE_REG,
+ .vsel_mask = AS3722_SD_VSEL_MASK,
+ .enable_reg = AS3722_SD_CONTROL_REG,
+ .enable_mask = AS3722_SDn_CTRL(1),
+ .sleep_ctrl_reg = AS3722_ENABLE_CTRL1_REG,
+ .sleep_ctrl_mask = AS3722_SD1_EXT_ENABLE_MASK,
+ .control_reg = AS3722_SD1_CONTROL_REG,
+ .mode_mask = AS3722_SD1_MODE_FAST,
+ },
+ {
+ .regulator_id = AS3722_REGULATOR_ID_SD2,
+ .name = "as3722-sd2",
+ .sname = "vsup-sd2",
+ .vsel_reg = AS3722_SD2_VOLTAGE_REG,
+ .vsel_mask = AS3722_SD_VSEL_MASK,
+ .enable_reg = AS3722_SD_CONTROL_REG,
+ .enable_mask = AS3722_SDn_CTRL(2),
+ .sleep_ctrl_reg = AS3722_ENABLE_CTRL1_REG,
+ .sleep_ctrl_mask = AS3722_SD2_EXT_ENABLE_MASK,
+ .control_reg = AS3722_SD23_CONTROL_REG,
+ .mode_mask = AS3722_SD2_MODE_FAST,
+ .n_voltages = AS3722_SD2_VSEL_MAX + 1,
+ },
+ {
+ .regulator_id = AS3722_REGULATOR_ID_SD3,
+ .name = "as3722-sd3",
+ .sname = "vsup-sd3",
+ .vsel_reg = AS3722_SD3_VOLTAGE_REG,
+ .vsel_mask = AS3722_SD_VSEL_MASK,
+ .enable_reg = AS3722_SD_CONTROL_REG,
+ .enable_mask = AS3722_SDn_CTRL(3),
+ .sleep_ctrl_reg = AS3722_ENABLE_CTRL1_REG,
+ .sleep_ctrl_mask = AS3722_SD3_EXT_ENABLE_MASK,
+ .control_reg = AS3722_SD23_CONTROL_REG,
+ .mode_mask = AS3722_SD3_MODE_FAST,
+ .n_voltages = AS3722_SD2_VSEL_MAX + 1,
+ },
+ {
+ .regulator_id = AS3722_REGULATOR_ID_SD4,
+ .name = "as3722-sd4",
+ .sname = "vsup-sd4",
+ .vsel_reg = AS3722_SD4_VOLTAGE_REG,
+ .vsel_mask = AS3722_SD_VSEL_MASK,
+ .enable_reg = AS3722_SD_CONTROL_REG,
+ .enable_mask = AS3722_SDn_CTRL(4),
+ .sleep_ctrl_reg = AS3722_ENABLE_CTRL2_REG,
+ .sleep_ctrl_mask = AS3722_SD4_EXT_ENABLE_MASK,
+ .control_reg = AS3722_SD4_CONTROL_REG,
+ .mode_mask = AS3722_SD4_MODE_FAST,
+ .n_voltages = AS3722_SD2_VSEL_MAX + 1,
+ },
+ {
+ .regulator_id = AS3722_REGULATOR_ID_SD5,
+ .name = "as3722-sd5",
+ .sname = "vsup-sd5",
+ .vsel_reg = AS3722_SD5_VOLTAGE_REG,
+ .vsel_mask = AS3722_SD_VSEL_MASK,
+ .enable_reg = AS3722_SD_CONTROL_REG,
+ .enable_mask = AS3722_SDn_CTRL(5),
+ .sleep_ctrl_reg = AS3722_ENABLE_CTRL2_REG,
+ .sleep_ctrl_mask = AS3722_SD5_EXT_ENABLE_MASK,
+ .control_reg = AS3722_SD5_CONTROL_REG,
+ .mode_mask = AS3722_SD5_MODE_FAST,
+ .n_voltages = AS3722_SD2_VSEL_MAX + 1,
+ },
+ {
+ .regulator_id = AS3722_REGULATOR_ID_SD6,
+ .name = "as3722-sd6",
+ .vsel_reg = AS3722_SD6_VOLTAGE_REG,
+ .vsel_mask = AS3722_SD_VSEL_MASK,
+ .enable_reg = AS3722_SD_CONTROL_REG,
+ .enable_mask = AS3722_SDn_CTRL(6),
+ .sleep_ctrl_reg = AS3722_ENABLE_CTRL2_REG,
+ .sleep_ctrl_mask = AS3722_SD6_EXT_ENABLE_MASK,
+ .control_reg = AS3722_SD6_CONTROL_REG,
+ .mode_mask = AS3722_SD6_MODE_FAST,
+ },
+ {
+ .regulator_id = AS3722_REGULATOR_ID_LDO0,
+ .name = "as3722-ldo0",
+ .sname = "vin-ldo0",
+ .vsel_reg = AS3722_LDO0_VOLTAGE_REG,
+ .vsel_mask = AS3722_LDO0_VSEL_MASK,
+ .enable_reg = AS3722_LDOCONTROL0_REG,
+ .enable_mask = AS3722_LDO0_CTRL,
+ .sleep_ctrl_reg = AS3722_ENABLE_CTRL3_REG,
+ .sleep_ctrl_mask = AS3722_LDO0_EXT_ENABLE_MASK,
+ .n_voltages = AS3722_LDO0_NUM_VOLT,
+ },
+ {
+ .regulator_id = AS3722_REGULATOR_ID_LDO1,
+ .name = "as3722-ldo1",
+ .sname = "vin-ldo1-6",
+ .vsel_reg = AS3722_LDO1_VOLTAGE_REG,
+ .vsel_mask = AS3722_LDO_VSEL_MASK,
+ .enable_reg = AS3722_LDOCONTROL0_REG,
+ .enable_mask = AS3722_LDO1_CTRL,
+ .sleep_ctrl_reg = AS3722_ENABLE_CTRL3_REG,
+ .sleep_ctrl_mask = AS3722_LDO1_EXT_ENABLE_MASK,
+ .n_voltages = AS3722_LDO_NUM_VOLT,
+ },
+ {
+ .regulator_id = AS3722_REGULATOR_ID_LDO2,
+ .name = "as3722-ldo2",
+ .sname = "vin-ldo2-5-7",
+ .vsel_reg = AS3722_LDO2_VOLTAGE_REG,
+ .vsel_mask = AS3722_LDO_VSEL_MASK,
+ .enable_reg = AS3722_LDOCONTROL0_REG,
+ .enable_mask = AS3722_LDO2_CTRL,
+ .sleep_ctrl_reg = AS3722_ENABLE_CTRL3_REG,
+ .sleep_ctrl_mask = AS3722_LDO2_EXT_ENABLE_MASK,
+ .n_voltages = AS3722_LDO_NUM_VOLT,
+ },
+ {
+ .regulator_id = AS3722_REGULATOR_ID_LDO3,
+ .name = "as3722-ldo3",
+ .sname = "vin-ldo3-4",
+ .vsel_reg = AS3722_LDO3_VOLTAGE_REG,
+ .vsel_mask = AS3722_LDO3_VSEL_MASK,
+ .enable_reg = AS3722_LDOCONTROL0_REG,
+ .enable_mask = AS3722_LDO3_CTRL,
+ .sleep_ctrl_reg = AS3722_ENABLE_CTRL3_REG,
+ .sleep_ctrl_mask = AS3722_LDO3_EXT_ENABLE_MASK,
+ .n_voltages = AS3722_LDO3_NUM_VOLT,
+ },
+ {
+ .regulator_id = AS3722_REGULATOR_ID_LDO4,
+ .name = "as3722-ldo4",
+ .sname = "vin-ldo3-4",
+ .vsel_reg = AS3722_LDO4_VOLTAGE_REG,
+ .vsel_mask = AS3722_LDO_VSEL_MASK,
+ .enable_reg = AS3722_LDOCONTROL0_REG,
+ .enable_mask = AS3722_LDO4_CTRL,
+ .sleep_ctrl_reg = AS3722_ENABLE_CTRL4_REG,
+ .sleep_ctrl_mask = AS3722_LDO4_EXT_ENABLE_MASK,
+ .n_voltages = AS3722_LDO_NUM_VOLT,
+ },
+ {
+ .regulator_id = AS3722_REGULATOR_ID_LDO5,
+ .name = "as3722-ldo5",
+ .sname = "vin-ldo2-5-7",
+ .vsel_reg = AS3722_LDO5_VOLTAGE_REG,
+ .vsel_mask = AS3722_LDO_VSEL_MASK,
+ .enable_reg = AS3722_LDOCONTROL0_REG,
+ .enable_mask = AS3722_LDO5_CTRL,
+ .sleep_ctrl_reg = AS3722_ENABLE_CTRL4_REG,
+ .sleep_ctrl_mask = AS3722_LDO5_EXT_ENABLE_MASK,
+ .n_voltages = AS3722_LDO_NUM_VOLT,
+ },
+ {
+ .regulator_id = AS3722_REGULATOR_ID_LDO6,
+ .name = "as3722-ldo6",
+ .sname = "vin-ldo1-6",
+ .vsel_reg = AS3722_LDO6_VOLTAGE_REG,
+ .vsel_mask = AS3722_LDO_VSEL_MASK,
+ .enable_reg = AS3722_LDOCONTROL0_REG,
+ .enable_mask = AS3722_LDO6_CTRL,
+ .sleep_ctrl_reg = AS3722_ENABLE_CTRL4_REG,
+ .sleep_ctrl_mask = AS3722_LDO6_EXT_ENABLE_MASK,
+ .n_voltages = AS3722_LDO_NUM_VOLT,
+ },
+ {
+ .regulator_id = AS3722_REGULATOR_ID_LDO7,
+ .name = "as3722-ldo7",
+ .sname = "vin-ldo2-5-7",
+ .vsel_reg = AS3722_LDO7_VOLTAGE_REG,
+ .vsel_mask = AS3722_LDO_VSEL_MASK,
+ .enable_reg = AS3722_LDOCONTROL0_REG,
+ .enable_mask = AS3722_LDO7_CTRL,
+ .sleep_ctrl_reg = AS3722_ENABLE_CTRL4_REG,
+ .sleep_ctrl_mask = AS3722_LDO7_EXT_ENABLE_MASK,
+ .n_voltages = AS3722_LDO_NUM_VOLT,
+ },
+ {
+ .regulator_id = AS3722_REGULATOR_ID_LDO9,
+ .name = "as3722-ldo9",
+ .sname = "vin-ldo9-10",
+ .vsel_reg = AS3722_LDO9_VOLTAGE_REG,
+ .vsel_mask = AS3722_LDO_VSEL_MASK,
+ .enable_reg = AS3722_LDOCONTROL1_REG,
+ .enable_mask = AS3722_LDO9_CTRL,
+ .sleep_ctrl_reg = AS3722_ENABLE_CTRL5_REG,
+ .sleep_ctrl_mask = AS3722_LDO9_EXT_ENABLE_MASK,
+ .n_voltages = AS3722_LDO_NUM_VOLT,
+ },
+ {
+ .regulator_id = AS3722_REGULATOR_ID_LDO10,
+ .name = "as3722-ldo10",
+ .sname = "vin-ldo9-10",
+ .vsel_reg = AS3722_LDO10_VOLTAGE_REG,
+ .vsel_mask = AS3722_LDO_VSEL_MASK,
+ .enable_reg = AS3722_LDOCONTROL1_REG,
+ .enable_mask = AS3722_LDO10_CTRL,
+ .sleep_ctrl_reg = AS3722_ENABLE_CTRL5_REG,
+ .sleep_ctrl_mask = AS3722_LDO10_EXT_ENABLE_MASK,
+ .n_voltages = AS3722_LDO_NUM_VOLT,
+ },
+ {
+ .regulator_id = AS3722_REGULATOR_ID_LDO11,
+ .name = "as3722-ldo11",
+ .sname = "vin-ldo11",
+ .vsel_reg = AS3722_LDO11_VOLTAGE_REG,
+ .vsel_mask = AS3722_LDO_VSEL_MASK,
+ .enable_reg = AS3722_LDOCONTROL1_REG,
+ .enable_mask = AS3722_LDO11_CTRL,
+ .sleep_ctrl_reg = AS3722_ENABLE_CTRL5_REG,
+ .sleep_ctrl_mask = AS3722_LDO11_EXT_ENABLE_MASK,
+ .n_voltages = AS3722_LDO_NUM_VOLT,
+ },
+};
+
+static const unsigned int as3722_ldo_current[] = { 150000, 300000 };
+static const unsigned int as3722_sd016_current[] = {
+ 2500000, 3000000, 3500000
+};
+
+static const struct regulator_ops as3722_ldo0_ops = {
+ .is_enabled = regulator_is_enabled_regmap,
+ .enable = regulator_enable_regmap,
+ .disable = regulator_disable_regmap,
+ .list_voltage = regulator_list_voltage_linear,
+ .get_voltage_sel = regulator_get_voltage_sel_regmap,
+ .set_voltage_sel = regulator_set_voltage_sel_regmap,
+ .get_current_limit = regulator_get_current_limit_regmap,
+ .set_current_limit = regulator_set_current_limit_regmap,
+};
+
+static const struct regulator_ops as3722_ldo0_extcntrl_ops = {
+ .list_voltage = regulator_list_voltage_linear,
+ .get_voltage_sel = regulator_get_voltage_sel_regmap,
+ .set_voltage_sel = regulator_set_voltage_sel_regmap,
+ .get_current_limit = regulator_get_current_limit_regmap,
+ .set_current_limit = regulator_set_current_limit_regmap,
+};
+
+static int as3722_ldo3_set_tracking_mode(struct as3722_regulators *as3722_reg,
+ int id, u8 mode)
+{
+ struct as3722 *as3722 = as3722_reg->as3722;
+
+ switch (mode) {
+ case AS3722_LDO3_MODE_PMOS:
+ case AS3722_LDO3_MODE_PMOS_TRACKING:
+ case AS3722_LDO3_MODE_NMOS:
+ case AS3722_LDO3_MODE_SWITCH:
+ return as3722_update_bits(as3722,
+ as3722_reg_lookup[id].vsel_reg,
+ AS3722_LDO3_MODE_MASK, mode);
+
+ default:
+ return -EINVAL;
+ }
+}
+
+static int as3722_ldo3_get_current_limit(struct regulator_dev *rdev)
+{
+ return 150000;
+}
+
+static const struct regulator_ops as3722_ldo3_ops = {
+ .is_enabled = regulator_is_enabled_regmap,
+ .enable = regulator_enable_regmap,
+ .disable = regulator_disable_regmap,
+ .list_voltage = regulator_list_voltage_linear,
+ .get_voltage_sel = regulator_get_voltage_sel_regmap,
+ .set_voltage_sel = regulator_set_voltage_sel_regmap,
+ .get_current_limit = as3722_ldo3_get_current_limit,
+};
+
+static const struct regulator_ops as3722_ldo3_extcntrl_ops = {
+ .list_voltage = regulator_list_voltage_linear,
+ .get_voltage_sel = regulator_get_voltage_sel_regmap,
+ .set_voltage_sel = regulator_set_voltage_sel_regmap,
+ .get_current_limit = as3722_ldo3_get_current_limit,
+};
+
+static const struct regulator_ops as3722_ldo6_ops = {
+ .is_enabled = regulator_is_enabled_regmap,
+ .enable = regulator_enable_regmap,
+ .disable = regulator_disable_regmap,
+ .map_voltage = regulator_map_voltage_linear_range,
+ .set_voltage_sel = regulator_set_voltage_sel_regmap,
+ .get_voltage_sel = regulator_get_voltage_sel_regmap,
+ .list_voltage = regulator_list_voltage_linear_range,
+ .get_current_limit = regulator_get_current_limit_regmap,
+ .set_current_limit = regulator_set_current_limit_regmap,
+ .get_bypass = regulator_get_bypass_regmap,
+ .set_bypass = regulator_set_bypass_regmap,
+};
+
+static const struct regulator_ops as3722_ldo6_extcntrl_ops = {
+ .map_voltage = regulator_map_voltage_linear_range,
+ .set_voltage_sel = regulator_set_voltage_sel_regmap,
+ .get_voltage_sel = regulator_get_voltage_sel_regmap,
+ .list_voltage = regulator_list_voltage_linear_range,
+ .get_current_limit = regulator_get_current_limit_regmap,
+ .set_current_limit = regulator_set_current_limit_regmap,
+ .get_bypass = regulator_get_bypass_regmap,
+ .set_bypass = regulator_set_bypass_regmap,
+};
+
+static const struct linear_range as3722_ldo_ranges[] = {
+ REGULATOR_LINEAR_RANGE(0, 0x00, 0x00, 0),
+ REGULATOR_LINEAR_RANGE(825000, 0x01, 0x24, 25000),
+ REGULATOR_LINEAR_RANGE(1725000, 0x40, 0x7F, 25000),
+};
+
+static const struct regulator_ops as3722_ldo_ops = {
+ .is_enabled = regulator_is_enabled_regmap,
+ .enable = regulator_enable_regmap,
+ .disable = regulator_disable_regmap,
+ .map_voltage = regulator_map_voltage_linear_range,
+ .set_voltage_sel = regulator_set_voltage_sel_regmap,
+ .get_voltage_sel = regulator_get_voltage_sel_regmap,
+ .list_voltage = regulator_list_voltage_linear_range,
+ .get_current_limit = regulator_get_current_limit_regmap,
+ .set_current_limit = regulator_set_current_limit_regmap,
+};
+
+static const struct regulator_ops as3722_ldo_extcntrl_ops = {
+ .map_voltage = regulator_map_voltage_linear_range,
+ .set_voltage_sel = regulator_set_voltage_sel_regmap,
+ .get_voltage_sel = regulator_get_voltage_sel_regmap,
+ .list_voltage = regulator_list_voltage_linear_range,
+ .get_current_limit = regulator_get_current_limit_regmap,
+ .set_current_limit = regulator_set_current_limit_regmap,
+};
+
+static unsigned int as3722_sd_get_mode(struct regulator_dev *rdev)
+{
+ struct as3722_regulators *as3722_regs = rdev_get_drvdata(rdev);
+ struct as3722 *as3722 = as3722_regs->as3722;
+ int id = rdev_get_id(rdev);
+ u32 val;
+ int ret;
+
+ if (!as3722_reg_lookup[id].control_reg)
+ return -ENOTSUPP;
+
+ ret = as3722_read(as3722, as3722_reg_lookup[id].control_reg, &val);
+ if (ret < 0) {
+ dev_err(as3722_regs->dev, "Reg 0x%02x read failed: %d\n",
+ as3722_reg_lookup[id].control_reg, ret);
+ return ret;
+ }
+
+ if (val & as3722_reg_lookup[id].mode_mask)
+ return REGULATOR_MODE_FAST;
+ else
+ return REGULATOR_MODE_NORMAL;
+}
+
+static int as3722_sd_set_mode(struct regulator_dev *rdev,
+ unsigned int mode)
+{
+ struct as3722_regulators *as3722_regs = rdev_get_drvdata(rdev);
+ struct as3722 *as3722 = as3722_regs->as3722;
+ u8 id = rdev_get_id(rdev);
+ u8 val = 0;
+ int ret;
+
+ if (!as3722_reg_lookup[id].control_reg)
+ return -ERANGE;
+
+ switch (mode) {
+ case REGULATOR_MODE_FAST:
+ val = as3722_reg_lookup[id].mode_mask;
+ fallthrough;
+ case REGULATOR_MODE_NORMAL:
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ ret = as3722_update_bits(as3722, as3722_reg_lookup[id].control_reg,
+ as3722_reg_lookup[id].mode_mask, val);
+ if (ret < 0) {
+ dev_err(as3722_regs->dev, "Reg 0x%02x update failed: %d\n",
+ as3722_reg_lookup[id].control_reg, ret);
+ return ret;
+ }
+ return ret;
+}
+
+static bool as3722_sd0_is_low_voltage(struct as3722_regulators *as3722_regs)
+{
+ int err;
+ unsigned val;
+
+ err = as3722_read(as3722_regs->as3722, AS3722_FUSE7_REG, &val);
+ if (err < 0) {
+ dev_err(as3722_regs->dev, "Reg 0x%02x read failed: %d\n",
+ AS3722_FUSE7_REG, err);
+ return false;
+ }
+ if (val & AS3722_FUSE7_SD0_LOW_VOLTAGE)
+ return true;
+ return false;
+}
+
+static const struct linear_range as3722_sd2345_ranges[] = {
+ REGULATOR_LINEAR_RANGE(0, 0x00, 0x00, 0),
+ REGULATOR_LINEAR_RANGE(612500, 0x01, 0x40, 12500),
+ REGULATOR_LINEAR_RANGE(1425000, 0x41, 0x70, 25000),
+ REGULATOR_LINEAR_RANGE(2650000, 0x71, 0x7F, 50000),
+};
+
+static const struct regulator_ops as3722_sd016_ops = {
+ .is_enabled = regulator_is_enabled_regmap,
+ .enable = regulator_enable_regmap,
+ .disable = regulator_disable_regmap,
+ .list_voltage = regulator_list_voltage_linear,
+ .map_voltage = regulator_map_voltage_linear,
+ .get_voltage_sel = regulator_get_voltage_sel_regmap,
+ .set_voltage_sel = regulator_set_voltage_sel_regmap,
+ .get_current_limit = regulator_get_current_limit_regmap,
+ .set_current_limit = regulator_set_current_limit_regmap,
+ .get_mode = as3722_sd_get_mode,
+ .set_mode = as3722_sd_set_mode,
+};
+
+static const struct regulator_ops as3722_sd016_extcntrl_ops = {
+ .list_voltage = regulator_list_voltage_linear,
+ .map_voltage = regulator_map_voltage_linear,
+ .get_voltage_sel = regulator_get_voltage_sel_regmap,
+ .set_voltage_sel = regulator_set_voltage_sel_regmap,
+ .get_current_limit = regulator_get_current_limit_regmap,
+ .set_current_limit = regulator_set_current_limit_regmap,
+ .get_mode = as3722_sd_get_mode,
+ .set_mode = as3722_sd_set_mode,
+};
+
+static const struct regulator_ops as3722_sd2345_ops = {
+ .is_enabled = regulator_is_enabled_regmap,
+ .enable = regulator_enable_regmap,
+ .disable = regulator_disable_regmap,
+ .list_voltage = regulator_list_voltage_linear_range,
+ .map_voltage = regulator_map_voltage_linear_range,
+ .set_voltage_sel = regulator_set_voltage_sel_regmap,
+ .get_voltage_sel = regulator_get_voltage_sel_regmap,
+ .get_mode = as3722_sd_get_mode,
+ .set_mode = as3722_sd_set_mode,
+};
+
+static const struct regulator_ops as3722_sd2345_extcntrl_ops = {
+ .list_voltage = regulator_list_voltage_linear_range,
+ .map_voltage = regulator_map_voltage_linear_range,
+ .set_voltage_sel = regulator_set_voltage_sel_regmap,
+ .get_voltage_sel = regulator_get_voltage_sel_regmap,
+ .get_mode = as3722_sd_get_mode,
+ .set_mode = as3722_sd_set_mode,
+};
+
+static int as3722_extreg_init(struct as3722_regulators *as3722_regs, int id,
+ int ext_pwr_ctrl)
+{
+ int ret;
+ unsigned int val;
+
+ if ((ext_pwr_ctrl < AS3722_EXT_CONTROL_ENABLE1) ||
+ (ext_pwr_ctrl > AS3722_EXT_CONTROL_ENABLE3))
+ return -EINVAL;
+
+ val = ext_pwr_ctrl << (ffs(as3722_reg_lookup[id].sleep_ctrl_mask) - 1);
+ ret = as3722_update_bits(as3722_regs->as3722,
+ as3722_reg_lookup[id].sleep_ctrl_reg,
+ as3722_reg_lookup[id].sleep_ctrl_mask, val);
+ if (ret < 0)
+ dev_err(as3722_regs->dev, "Reg 0x%02x update failed: %d\n",
+ as3722_reg_lookup[id].sleep_ctrl_reg, ret);
+ return ret;
+}
+
+static struct of_regulator_match as3722_regulator_matches[] = {
+ { .name = "sd0", },
+ { .name = "sd1", },
+ { .name = "sd2", },
+ { .name = "sd3", },
+ { .name = "sd4", },
+ { .name = "sd5", },
+ { .name = "sd6", },
+ { .name = "ldo0", },
+ { .name = "ldo1", },
+ { .name = "ldo2", },
+ { .name = "ldo3", },
+ { .name = "ldo4", },
+ { .name = "ldo5", },
+ { .name = "ldo6", },
+ { .name = "ldo7", },
+ { .name = "ldo9", },
+ { .name = "ldo10", },
+ { .name = "ldo11", },
+};
+
+static int as3722_get_regulator_dt_data(struct platform_device *pdev,
+ struct as3722_regulators *as3722_regs)
+{
+ struct device_node *np;
+ struct as3722_regulator_config_data *reg_config;
+ u32 prop;
+ int id;
+ int ret;
+
+ np = of_get_child_by_name(pdev->dev.parent->of_node, "regulators");
+ if (!np) {
+ dev_err(&pdev->dev, "Device is not having regulators node\n");
+ return -ENODEV;
+ }
+ pdev->dev.of_node = np;
+
+ ret = of_regulator_match(&pdev->dev, np, as3722_regulator_matches,
+ ARRAY_SIZE(as3722_regulator_matches));
+ of_node_put(np);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "Parsing of regulator node failed: %d\n",
+ ret);
+ return ret;
+ }
+
+ for (id = 0; id < ARRAY_SIZE(as3722_regulator_matches); ++id) {
+ struct device_node *reg_node;
+
+ reg_config = &as3722_regs->reg_config_data[id];
+ reg_config->reg_init = as3722_regulator_matches[id].init_data;
+ reg_node = as3722_regulator_matches[id].of_node;
+
+ if (!reg_config->reg_init || !reg_node)
+ continue;
+
+ ret = of_property_read_u32(reg_node, "ams,ext-control", &prop);
+ if (!ret) {
+ if (prop < 3)
+ reg_config->ext_control = prop;
+ else
+ dev_warn(&pdev->dev,
+ "ext-control have invalid option: %u\n",
+ prop);
+ }
+ reg_config->enable_tracking =
+ of_property_read_bool(reg_node, "ams,enable-tracking");
+ }
+ return 0;
+}
+
+static int as3722_regulator_probe(struct platform_device *pdev)
+{
+ struct as3722 *as3722 = dev_get_drvdata(pdev->dev.parent);
+ struct as3722_regulators *as3722_regs;
+ struct as3722_regulator_config_data *reg_config;
+ struct regulator_dev *rdev;
+ struct regulator_config config = { };
+ const struct regulator_ops *ops;
+ int id;
+ int ret;
+
+ as3722_regs = devm_kzalloc(&pdev->dev, sizeof(*as3722_regs),
+ GFP_KERNEL);
+ if (!as3722_regs)
+ return -ENOMEM;
+
+ as3722_regs->dev = &pdev->dev;
+ as3722_regs->as3722 = as3722;
+ platform_set_drvdata(pdev, as3722_regs);
+
+ ret = as3722_get_regulator_dt_data(pdev, as3722_regs);
+ if (ret < 0)
+ return ret;
+
+ config.dev = &pdev->dev;
+ config.driver_data = as3722_regs;
+ config.regmap = as3722->regmap;
+
+ for (id = 0; id < AS3722_REGULATOR_ID_MAX; id++) {
+ struct regulator_desc *desc;
+
+ desc = &as3722_regs->desc[id];
+ reg_config = &as3722_regs->reg_config_data[id];
+
+ desc->name = as3722_reg_lookup[id].name;
+ desc->supply_name = as3722_reg_lookup[id].sname;
+ desc->id = as3722_reg_lookup[id].regulator_id;
+ desc->n_voltages = as3722_reg_lookup[id].n_voltages;
+ desc->type = REGULATOR_VOLTAGE;
+ desc->owner = THIS_MODULE;
+ desc->enable_reg = as3722_reg_lookup[id].enable_reg;
+ desc->enable_mask = as3722_reg_lookup[id].enable_mask;
+ desc->vsel_reg = as3722_reg_lookup[id].vsel_reg;
+ desc->vsel_mask = as3722_reg_lookup[id].vsel_mask;
+ switch (id) {
+ case AS3722_REGULATOR_ID_LDO0:
+ if (reg_config->ext_control)
+ ops = &as3722_ldo0_extcntrl_ops;
+ else
+ ops = &as3722_ldo0_ops;
+ desc->min_uV = 825000;
+ desc->uV_step = 25000;
+ desc->linear_min_sel = 1;
+ desc->enable_time = 500;
+ desc->curr_table = as3722_ldo_current;
+ desc->n_current_limits = ARRAY_SIZE(as3722_ldo_current);
+ desc->csel_reg = as3722_reg_lookup[id].vsel_reg;
+ desc->csel_mask = AS3722_LDO_ILIMIT_MASK;
+ break;
+ case AS3722_REGULATOR_ID_LDO3:
+ if (reg_config->ext_control)
+ ops = &as3722_ldo3_extcntrl_ops;
+ else
+ ops = &as3722_ldo3_ops;
+ desc->min_uV = 620000;
+ desc->uV_step = 20000;
+ desc->linear_min_sel = 1;
+ desc->enable_time = 500;
+ if (reg_config->enable_tracking) {
+ ret = as3722_ldo3_set_tracking_mode(as3722_regs,
+ id, AS3722_LDO3_MODE_PMOS_TRACKING);
+ if (ret < 0) {
+ dev_err(&pdev->dev,
+ "LDO3 tracking failed: %d\n",
+ ret);
+ return ret;
+ }
+ }
+ break;
+ case AS3722_REGULATOR_ID_LDO6:
+ if (reg_config->ext_control)
+ ops = &as3722_ldo6_extcntrl_ops;
+ else
+ ops = &as3722_ldo6_ops;
+ desc->enable_time = 500;
+ desc->bypass_reg = AS3722_LDO6_VOLTAGE_REG;
+ desc->bypass_mask = AS3722_LDO_VSEL_MASK;
+ desc->bypass_val_on = AS3722_LDO6_VSEL_BYPASS;
+ desc->bypass_val_off = AS3722_LDO6_VSEL_BYPASS;
+ desc->linear_ranges = as3722_ldo_ranges;
+ desc->n_linear_ranges = ARRAY_SIZE(as3722_ldo_ranges);
+ desc->curr_table = as3722_ldo_current;
+ desc->n_current_limits = ARRAY_SIZE(as3722_ldo_current);
+ desc->csel_reg = as3722_reg_lookup[id].vsel_reg;
+ desc->csel_mask = AS3722_LDO_ILIMIT_MASK;
+ break;
+ case AS3722_REGULATOR_ID_SD0:
+ case AS3722_REGULATOR_ID_SD1:
+ case AS3722_REGULATOR_ID_SD6:
+ if (reg_config->ext_control)
+ ops = &as3722_sd016_extcntrl_ops;
+ else
+ ops = &as3722_sd016_ops;
+ if (id == AS3722_REGULATOR_ID_SD0 &&
+ as3722_sd0_is_low_voltage(as3722_regs)) {
+ as3722_regs->desc[id].n_voltages =
+ AS3722_SD0_VSEL_LOW_VOL_MAX + 1;
+ as3722_regs->desc[id].min_uV = 410000;
+ } else {
+ as3722_regs->desc[id].n_voltages =
+ AS3722_SD0_VSEL_MAX + 1;
+ as3722_regs->desc[id].min_uV = 610000;
+ }
+ desc->uV_step = 10000;
+ desc->linear_min_sel = 1;
+ desc->enable_time = 600;
+ desc->curr_table = as3722_sd016_current;
+ desc->n_current_limits =
+ ARRAY_SIZE(as3722_sd016_current);
+ if (id == AS3722_REGULATOR_ID_SD0) {
+ desc->csel_reg = AS3722_OVCURRENT_REG;
+ desc->csel_mask =
+ AS3722_OVCURRENT_SD0_TRIP_MASK;
+ } else if (id == AS3722_REGULATOR_ID_SD1) {
+ desc->csel_reg = AS3722_OVCURRENT_REG;
+ desc->csel_mask =
+ AS3722_OVCURRENT_SD1_TRIP_MASK;
+ } else if (id == AS3722_REGULATOR_ID_SD6) {
+ desc->csel_reg = AS3722_OVCURRENT_DEB_REG;
+ desc->csel_mask =
+ AS3722_OVCURRENT_SD6_TRIP_MASK;
+ }
+ break;
+ case AS3722_REGULATOR_ID_SD2:
+ case AS3722_REGULATOR_ID_SD3:
+ case AS3722_REGULATOR_ID_SD4:
+ case AS3722_REGULATOR_ID_SD5:
+ if (reg_config->ext_control)
+ ops = &as3722_sd2345_extcntrl_ops;
+ else
+ ops = &as3722_sd2345_ops;
+ desc->linear_ranges = as3722_sd2345_ranges;
+ desc->n_linear_ranges =
+ ARRAY_SIZE(as3722_sd2345_ranges);
+ break;
+ default:
+ if (reg_config->ext_control)
+ ops = &as3722_ldo_extcntrl_ops;
+ else
+ ops = &as3722_ldo_ops;
+ desc->enable_time = 500;
+ desc->linear_ranges = as3722_ldo_ranges;
+ desc->n_linear_ranges = ARRAY_SIZE(as3722_ldo_ranges);
+ desc->curr_table = as3722_ldo_current;
+ desc->n_current_limits = ARRAY_SIZE(as3722_ldo_current);
+ desc->csel_reg = as3722_reg_lookup[id].vsel_reg;
+ desc->csel_mask = AS3722_LDO_ILIMIT_MASK;
+ break;
+ }
+ desc->ops = ops;
+ config.init_data = reg_config->reg_init;
+ config.of_node = as3722_regulator_matches[id].of_node;
+ rdev = devm_regulator_register(&pdev->dev, desc, &config);
+ if (IS_ERR(rdev)) {
+ ret = PTR_ERR(rdev);
+ dev_err(&pdev->dev, "regulator %d register failed %d\n",
+ id, ret);
+ return ret;
+ }
+
+ if (reg_config->ext_control) {
+ ret = regulator_enable_regmap(rdev);
+ if (ret < 0) {
+ dev_err(&pdev->dev,
+ "Regulator %d enable failed: %d\n",
+ id, ret);
+ return ret;
+ }
+ ret = as3722_extreg_init(as3722_regs, id,
+ reg_config->ext_control);
+ if (ret < 0) {
+ dev_err(&pdev->dev,
+ "AS3722 ext control failed: %d", ret);
+ return ret;
+ }
+ }
+ }
+ return 0;
+}
+
+static const struct of_device_id of_as3722_regulator_match[] = {
+ { .compatible = "ams,as3722-regulator", },
+ {},
+};
+MODULE_DEVICE_TABLE(of, of_as3722_regulator_match);
+
+static struct platform_driver as3722_regulator_driver = {
+ .driver = {
+ .name = "as3722-regulator",
+ .of_match_table = of_as3722_regulator_match,
+ },
+ .probe = as3722_regulator_probe,
+};
+
+module_platform_driver(as3722_regulator_driver);
+
+MODULE_ALIAS("platform:as3722-regulator");
+MODULE_DESCRIPTION("AS3722 regulator driver");
+MODULE_AUTHOR("Florian Lobmaier <florian.lobmaier@ams.com>");
+MODULE_AUTHOR("Laxman Dewangan <ldewangan@nvidia.com>");
+MODULE_LICENSE("GPL");
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-11 20:31:30 +0000