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-rw-r--r--drivers/regulator/twl6030-regulator.c785
1 files changed, 785 insertions, 0 deletions
diff --git a/drivers/regulator/twl6030-regulator.c b/drivers/regulator/twl6030-regulator.c
new file mode 100644
index 000000000..f38567509
--- /dev/null
+++ b/drivers/regulator/twl6030-regulator.c
@@ -0,0 +1,785 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Split TWL6030 logic from twl-regulator.c:
+ * Copyright (C) 2008 David Brownell
+ *
+ * Copyright (C) 2016 Nicolae Rosia <nicolae.rosia@gmail.com>
+ */
+
+#include <linux/module.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/regulator/of_regulator.h>
+#include <linux/mfd/twl.h>
+#include <linux/delay.h>
+
+struct twlreg_info {
+ /* start of regulator's PM_RECEIVER control register bank */
+ u8 base;
+
+ /* twl resource ID, for resource control state machine */
+ u8 id;
+
+ u8 flags;
+
+ /* used by regulator core */
+ struct regulator_desc desc;
+
+ /* chip specific features */
+ unsigned long features;
+
+ /* data passed from board for external get/set voltage */
+ void *data;
+};
+
+
+/* LDO control registers ... offset is from the base of its register bank.
+ * The first three registers of all power resource banks help hardware to
+ * manage the various resource groups.
+ */
+/* Common offset in TWL4030/6030 */
+#define VREG_GRP 0
+/* TWL6030 register offsets */
+#define VREG_TRANS 1
+#define VREG_STATE 2
+#define VREG_VOLTAGE 3
+#define VREG_VOLTAGE_SMPS 4
+/* TWL6030 Misc register offsets */
+#define VREG_BC_ALL 1
+#define VREG_BC_REF 2
+#define VREG_BC_PROC 3
+#define VREG_BC_CLK_RST 4
+
+/* TWL6030 LDO register values for VREG_VOLTAGE */
+#define TWL6030_VREG_VOLTAGE_WR_S BIT(7)
+
+/* TWL6030 LDO register values for CFG_STATE */
+#define TWL6030_CFG_STATE_OFF 0x00
+#define TWL6030_CFG_STATE_ON 0x01
+#define TWL6030_CFG_STATE_OFF2 0x02
+#define TWL6030_CFG_STATE_SLEEP 0x03
+#define TWL6030_CFG_STATE_GRP_SHIFT 5
+#define TWL6030_CFG_STATE_APP_SHIFT 2
+#define TWL6030_CFG_STATE_MASK 0x03
+#define TWL6030_CFG_STATE_APP_MASK (0x03 << TWL6030_CFG_STATE_APP_SHIFT)
+#define TWL6030_CFG_STATE_APP(v) (((v) & TWL6030_CFG_STATE_APP_MASK) >>\
+ TWL6030_CFG_STATE_APP_SHIFT)
+
+/* Flags for SMPS Voltage reading and LDO reading*/
+#define SMPS_OFFSET_EN BIT(0)
+#define SMPS_EXTENDED_EN BIT(1)
+#define TWL_6030_WARM_RESET BIT(3)
+
+/* twl6032 SMPS EPROM values */
+#define TWL6030_SMPS_OFFSET 0xB0
+#define TWL6030_SMPS_MULT 0xB3
+#define SMPS_MULTOFFSET_SMPS4 BIT(0)
+#define SMPS_MULTOFFSET_VIO BIT(1)
+#define SMPS_MULTOFFSET_SMPS3 BIT(6)
+
+static inline int
+twlreg_read(struct twlreg_info *info, unsigned slave_subgp, unsigned offset)
+{
+ u8 value;
+ int status;
+
+ status = twl_i2c_read_u8(slave_subgp,
+ &value, info->base + offset);
+ return (status < 0) ? status : value;
+}
+
+static inline int
+twlreg_write(struct twlreg_info *info, unsigned slave_subgp, unsigned offset,
+ u8 value)
+{
+ return twl_i2c_write_u8(slave_subgp,
+ value, info->base + offset);
+}
+
+/* generic power resource operations, which work on all regulators */
+static int twlreg_grp(struct regulator_dev *rdev)
+{
+ return twlreg_read(rdev_get_drvdata(rdev), TWL_MODULE_PM_RECEIVER,
+ VREG_GRP);
+}
+
+/*
+ * Enable/disable regulators by joining/leaving the P1 (processor) group.
+ * We assume nobody else is updating the DEV_GRP registers.
+ */
+/* definition for 6030 family */
+#define P3_GRP_6030 BIT(2) /* secondary processor, modem, etc */
+#define P2_GRP_6030 BIT(1) /* "peripherals" */
+#define P1_GRP_6030 BIT(0) /* CPU/Linux */
+
+static int twl6030reg_is_enabled(struct regulator_dev *rdev)
+{
+ struct twlreg_info *info = rdev_get_drvdata(rdev);
+ int grp = 0, val;
+
+ if (!(twl_class_is_6030() && (info->features & TWL6032_SUBCLASS))) {
+ grp = twlreg_grp(rdev);
+ if (grp < 0)
+ return grp;
+ grp &= P1_GRP_6030;
+ val = twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_STATE);
+ val = TWL6030_CFG_STATE_APP(val);
+ } else {
+ val = twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_STATE);
+ val &= TWL6030_CFG_STATE_MASK;
+ grp = 1;
+ }
+
+ return grp && (val == TWL6030_CFG_STATE_ON);
+}
+
+#define PB_I2C_BUSY BIT(0)
+#define PB_I2C_BWEN BIT(1)
+
+
+static int twl6030reg_enable(struct regulator_dev *rdev)
+{
+ struct twlreg_info *info = rdev_get_drvdata(rdev);
+ int grp = 0;
+ int ret;
+
+ if (!(twl_class_is_6030() && (info->features & TWL6032_SUBCLASS)))
+ grp = twlreg_grp(rdev);
+ if (grp < 0)
+ return grp;
+
+ ret = twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_STATE,
+ grp << TWL6030_CFG_STATE_GRP_SHIFT |
+ TWL6030_CFG_STATE_ON);
+ return ret;
+}
+
+static int twl6030reg_disable(struct regulator_dev *rdev)
+{
+ struct twlreg_info *info = rdev_get_drvdata(rdev);
+ int grp = 0;
+ int ret;
+
+ if (!(twl_class_is_6030() && (info->features & TWL6032_SUBCLASS)))
+ grp = P1_GRP_6030 | P2_GRP_6030 | P3_GRP_6030;
+
+ /* For 6030, set the off state for all grps enabled */
+ ret = twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_STATE,
+ (grp) << TWL6030_CFG_STATE_GRP_SHIFT |
+ TWL6030_CFG_STATE_OFF);
+
+ return ret;
+}
+
+static int twl6030reg_get_status(struct regulator_dev *rdev)
+{
+ struct twlreg_info *info = rdev_get_drvdata(rdev);
+ int val;
+
+ val = twlreg_grp(rdev);
+ if (val < 0)
+ return val;
+
+ val = twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_STATE);
+
+ if (info->features & TWL6032_SUBCLASS)
+ val &= TWL6030_CFG_STATE_MASK;
+ else
+ val = TWL6030_CFG_STATE_APP(val);
+
+ switch (val) {
+ case TWL6030_CFG_STATE_ON:
+ return REGULATOR_STATUS_NORMAL;
+
+ case TWL6030_CFG_STATE_SLEEP:
+ return REGULATOR_STATUS_STANDBY;
+
+ case TWL6030_CFG_STATE_OFF:
+ case TWL6030_CFG_STATE_OFF2:
+ default:
+ break;
+ }
+
+ return REGULATOR_STATUS_OFF;
+}
+
+static int twl6030reg_set_mode(struct regulator_dev *rdev, unsigned mode)
+{
+ struct twlreg_info *info = rdev_get_drvdata(rdev);
+ int grp = 0;
+ int val;
+
+ if (!(twl_class_is_6030() && (info->features & TWL6032_SUBCLASS)))
+ grp = twlreg_grp(rdev);
+
+ if (grp < 0)
+ return grp;
+
+ /* Compose the state register settings */
+ val = grp << TWL6030_CFG_STATE_GRP_SHIFT;
+ /* We can only set the mode through state machine commands... */
+ switch (mode) {
+ case REGULATOR_MODE_NORMAL:
+ val |= TWL6030_CFG_STATE_ON;
+ break;
+ case REGULATOR_MODE_STANDBY:
+ val |= TWL6030_CFG_STATE_SLEEP;
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_STATE, val);
+}
+
+static int twl6030coresmps_set_voltage(struct regulator_dev *rdev, int min_uV,
+ int max_uV, unsigned *selector)
+{
+ return -ENODEV;
+}
+
+static int twl6030coresmps_get_voltage(struct regulator_dev *rdev)
+{
+ return -ENODEV;
+}
+
+static const struct regulator_ops twl6030coresmps_ops = {
+ .set_voltage = twl6030coresmps_set_voltage,
+ .get_voltage = twl6030coresmps_get_voltage,
+};
+
+static int
+twl6030ldo_set_voltage_sel(struct regulator_dev *rdev, unsigned selector)
+{
+ struct twlreg_info *info = rdev_get_drvdata(rdev);
+
+ if (info->flags & TWL_6030_WARM_RESET)
+ selector |= TWL6030_VREG_VOLTAGE_WR_S;
+
+ return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE,
+ selector);
+}
+
+static int twl6030ldo_get_voltage_sel(struct regulator_dev *rdev)
+{
+ struct twlreg_info *info = rdev_get_drvdata(rdev);
+ int vsel = twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE);
+
+ if (info->flags & TWL_6030_WARM_RESET)
+ vsel &= ~TWL6030_VREG_VOLTAGE_WR_S;
+
+ return vsel;
+}
+
+static const struct regulator_ops twl6030ldo_ops = {
+ .list_voltage = regulator_list_voltage_linear_range,
+
+ .set_voltage_sel = twl6030ldo_set_voltage_sel,
+ .get_voltage_sel = twl6030ldo_get_voltage_sel,
+
+ .enable = twl6030reg_enable,
+ .disable = twl6030reg_disable,
+ .is_enabled = twl6030reg_is_enabled,
+
+ .set_mode = twl6030reg_set_mode,
+
+ .get_status = twl6030reg_get_status,
+};
+
+static const struct regulator_ops twl6030fixed_ops = {
+ .list_voltage = regulator_list_voltage_linear,
+
+ .enable = twl6030reg_enable,
+ .disable = twl6030reg_disable,
+ .is_enabled = twl6030reg_is_enabled,
+
+ .set_mode = twl6030reg_set_mode,
+
+ .get_status = twl6030reg_get_status,
+};
+
+/*
+ * SMPS status and control
+ */
+
+static int twl6030smps_list_voltage(struct regulator_dev *rdev, unsigned index)
+{
+ struct twlreg_info *info = rdev_get_drvdata(rdev);
+
+ int voltage = 0;
+
+ switch (info->flags) {
+ case SMPS_OFFSET_EN:
+ voltage = 100000;
+ fallthrough;
+ case 0:
+ switch (index) {
+ case 0:
+ voltage = 0;
+ break;
+ case 58:
+ voltage = 1350 * 1000;
+ break;
+ case 59:
+ voltage = 1500 * 1000;
+ break;
+ case 60:
+ voltage = 1800 * 1000;
+ break;
+ case 61:
+ voltage = 1900 * 1000;
+ break;
+ case 62:
+ voltage = 2100 * 1000;
+ break;
+ default:
+ voltage += (600000 + (12500 * (index - 1)));
+ }
+ break;
+ case SMPS_EXTENDED_EN:
+ switch (index) {
+ case 0:
+ voltage = 0;
+ break;
+ case 58:
+ voltage = 2084 * 1000;
+ break;
+ case 59:
+ voltage = 2315 * 1000;
+ break;
+ case 60:
+ voltage = 2778 * 1000;
+ break;
+ case 61:
+ voltage = 2932 * 1000;
+ break;
+ case 62:
+ voltage = 3241 * 1000;
+ break;
+ default:
+ voltage = (1852000 + (38600 * (index - 1)));
+ }
+ break;
+ case SMPS_OFFSET_EN | SMPS_EXTENDED_EN:
+ switch (index) {
+ case 0:
+ voltage = 0;
+ break;
+ case 58:
+ voltage = 4167 * 1000;
+ break;
+ case 59:
+ voltage = 2315 * 1000;
+ break;
+ case 60:
+ voltage = 2778 * 1000;
+ break;
+ case 61:
+ voltage = 2932 * 1000;
+ break;
+ case 62:
+ voltage = 3241 * 1000;
+ break;
+ default:
+ voltage = (2161000 + (38600 * (index - 1)));
+ }
+ break;
+ }
+
+ return voltage;
+}
+
+static int twl6030smps_map_voltage(struct regulator_dev *rdev, int min_uV,
+ int max_uV)
+{
+ struct twlreg_info *info = rdev_get_drvdata(rdev);
+ int vsel = 0;
+
+ switch (info->flags) {
+ case 0:
+ if (min_uV == 0)
+ vsel = 0;
+ else if ((min_uV >= 600000) && (min_uV <= 1300000)) {
+ vsel = DIV_ROUND_UP(min_uV - 600000, 12500);
+ vsel++;
+ }
+ /* Values 1..57 for vsel are linear and can be calculated
+ * values 58..62 are non linear.
+ */
+ else if ((min_uV > 1900000) && (min_uV <= 2100000))
+ vsel = 62;
+ else if ((min_uV > 1800000) && (min_uV <= 1900000))
+ vsel = 61;
+ else if ((min_uV > 1500000) && (min_uV <= 1800000))
+ vsel = 60;
+ else if ((min_uV > 1350000) && (min_uV <= 1500000))
+ vsel = 59;
+ else if ((min_uV > 1300000) && (min_uV <= 1350000))
+ vsel = 58;
+ else
+ return -EINVAL;
+ break;
+ case SMPS_OFFSET_EN:
+ if (min_uV == 0)
+ vsel = 0;
+ else if ((min_uV >= 700000) && (min_uV <= 1420000)) {
+ vsel = DIV_ROUND_UP(min_uV - 700000, 12500);
+ vsel++;
+ }
+ /* Values 1..57 for vsel are linear and can be calculated
+ * values 58..62 are non linear.
+ */
+ else if ((min_uV > 1900000) && (min_uV <= 2100000))
+ vsel = 62;
+ else if ((min_uV > 1800000) && (min_uV <= 1900000))
+ vsel = 61;
+ else if ((min_uV > 1500000) && (min_uV <= 1800000))
+ vsel = 60;
+ else if ((min_uV > 1350000) && (min_uV <= 1500000))
+ vsel = 59;
+ else
+ return -EINVAL;
+ break;
+ case SMPS_EXTENDED_EN:
+ if (min_uV == 0) {
+ vsel = 0;
+ } else if ((min_uV >= 1852000) && (max_uV <= 4013600)) {
+ vsel = DIV_ROUND_UP(min_uV - 1852000, 38600);
+ vsel++;
+ }
+ break;
+ case SMPS_OFFSET_EN|SMPS_EXTENDED_EN:
+ if (min_uV == 0) {
+ vsel = 0;
+ } else if ((min_uV >= 2161000) && (min_uV <= 4321000)) {
+ vsel = DIV_ROUND_UP(min_uV - 2161000, 38600);
+ vsel++;
+ }
+ break;
+ }
+
+ return vsel;
+}
+
+static int twl6030smps_set_voltage_sel(struct regulator_dev *rdev,
+ unsigned int selector)
+{
+ struct twlreg_info *info = rdev_get_drvdata(rdev);
+
+ return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE_SMPS,
+ selector);
+}
+
+static int twl6030smps_get_voltage_sel(struct regulator_dev *rdev)
+{
+ struct twlreg_info *info = rdev_get_drvdata(rdev);
+
+ return twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE_SMPS);
+}
+
+static const struct regulator_ops twlsmps_ops = {
+ .list_voltage = twl6030smps_list_voltage,
+ .map_voltage = twl6030smps_map_voltage,
+
+ .set_voltage_sel = twl6030smps_set_voltage_sel,
+ .get_voltage_sel = twl6030smps_get_voltage_sel,
+
+ .enable = twl6030reg_enable,
+ .disable = twl6030reg_disable,
+ .is_enabled = twl6030reg_is_enabled,
+
+ .set_mode = twl6030reg_set_mode,
+
+ .get_status = twl6030reg_get_status,
+};
+
+/*----------------------------------------------------------------------*/
+static const struct linear_range twl6030ldo_linear_range[] = {
+ REGULATOR_LINEAR_RANGE(0, 0, 0, 0),
+ REGULATOR_LINEAR_RANGE(1000000, 1, 24, 100000),
+ REGULATOR_LINEAR_RANGE(2750000, 31, 31, 0),
+};
+
+#define TWL6030_ADJUSTABLE_SMPS(label) \
+static const struct twlreg_info TWL6030_INFO_##label = { \
+ .desc = { \
+ .name = #label, \
+ .id = TWL6030_REG_##label, \
+ .ops = &twl6030coresmps_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .owner = THIS_MODULE, \
+ }, \
+ }
+
+#define TWL6030_ADJUSTABLE_LDO(label, offset) \
+static const struct twlreg_info TWL6030_INFO_##label = { \
+ .base = offset, \
+ .desc = { \
+ .name = #label, \
+ .id = TWL6030_REG_##label, \
+ .n_voltages = 32, \
+ .linear_ranges = twl6030ldo_linear_range, \
+ .n_linear_ranges = ARRAY_SIZE(twl6030ldo_linear_range), \
+ .ops = &twl6030ldo_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .owner = THIS_MODULE, \
+ }, \
+ }
+
+#define TWL6032_ADJUSTABLE_LDO(label, offset) \
+static const struct twlreg_info TWL6032_INFO_##label = { \
+ .base = offset, \
+ .features = TWL6032_SUBCLASS, \
+ .desc = { \
+ .name = #label, \
+ .id = TWL6032_REG_##label, \
+ .n_voltages = 32, \
+ .linear_ranges = twl6030ldo_linear_range, \
+ .n_linear_ranges = ARRAY_SIZE(twl6030ldo_linear_range), \
+ .ops = &twl6030ldo_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .owner = THIS_MODULE, \
+ }, \
+ }
+
+#define TWL6030_FIXED_LDO(label, offset, mVolts, turnon_delay) \
+static const struct twlreg_info TWLFIXED_INFO_##label = { \
+ .base = offset, \
+ .id = 0, \
+ .desc = { \
+ .name = #label, \
+ .id = TWL6030##_REG_##label, \
+ .n_voltages = 1, \
+ .ops = &twl6030fixed_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .owner = THIS_MODULE, \
+ .min_uV = mVolts * 1000, \
+ .enable_time = turnon_delay, \
+ .of_map_mode = NULL, \
+ }, \
+ }
+
+#define TWL6032_ADJUSTABLE_SMPS(label, offset) \
+static const struct twlreg_info TWLSMPS_INFO_##label = { \
+ .base = offset, \
+ .features = TWL6032_SUBCLASS, \
+ .desc = { \
+ .name = #label, \
+ .id = TWL6032_REG_##label, \
+ .n_voltages = 63, \
+ .ops = &twlsmps_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .owner = THIS_MODULE, \
+ }, \
+ }
+
+/* VUSBCP is managed *only* by the USB subchip */
+/* 6030 REG with base as PMC Slave Misc : 0x0030 */
+/* Turnon-delay and remap configuration values for 6030 are not
+ verified since the specification is not public */
+TWL6030_ADJUSTABLE_SMPS(VDD1);
+TWL6030_ADJUSTABLE_SMPS(VDD2);
+TWL6030_ADJUSTABLE_SMPS(VDD3);
+TWL6030_ADJUSTABLE_LDO(VAUX1_6030, 0x54);
+TWL6030_ADJUSTABLE_LDO(VAUX2_6030, 0x58);
+TWL6030_ADJUSTABLE_LDO(VAUX3_6030, 0x5c);
+TWL6030_ADJUSTABLE_LDO(VMMC, 0x68);
+TWL6030_ADJUSTABLE_LDO(VPP, 0x6c);
+TWL6030_ADJUSTABLE_LDO(VUSIM, 0x74);
+/* 6025 are renamed compared to 6030 versions */
+TWL6032_ADJUSTABLE_LDO(LDO2, 0x54);
+TWL6032_ADJUSTABLE_LDO(LDO4, 0x58);
+TWL6032_ADJUSTABLE_LDO(LDO3, 0x5c);
+TWL6032_ADJUSTABLE_LDO(LDO5, 0x68);
+TWL6032_ADJUSTABLE_LDO(LDO1, 0x6c);
+TWL6032_ADJUSTABLE_LDO(LDO7, 0x74);
+TWL6032_ADJUSTABLE_LDO(LDO6, 0x60);
+TWL6032_ADJUSTABLE_LDO(LDOLN, 0x64);
+TWL6032_ADJUSTABLE_LDO(LDOUSB, 0x70);
+TWL6030_FIXED_LDO(VANA, 0x50, 2100, 0);
+TWL6030_FIXED_LDO(VCXIO, 0x60, 1800, 0);
+TWL6030_FIXED_LDO(VDAC, 0x64, 1800, 0);
+TWL6030_FIXED_LDO(VUSB, 0x70, 3300, 0);
+TWL6030_FIXED_LDO(V1V8, 0x16, 1800, 0);
+TWL6030_FIXED_LDO(V2V1, 0x1c, 2100, 0);
+TWL6032_ADJUSTABLE_SMPS(SMPS3, 0x34);
+TWL6032_ADJUSTABLE_SMPS(SMPS4, 0x10);
+TWL6032_ADJUSTABLE_SMPS(VIO, 0x16);
+
+static u8 twl_get_smps_offset(void)
+{
+ u8 value;
+
+ twl_i2c_read_u8(TWL_MODULE_PM_RECEIVER, &value,
+ TWL6030_SMPS_OFFSET);
+ return value;
+}
+
+static u8 twl_get_smps_mult(void)
+{
+ u8 value;
+
+ twl_i2c_read_u8(TWL_MODULE_PM_RECEIVER, &value,
+ TWL6030_SMPS_MULT);
+ return value;
+}
+
+#define TWL_OF_MATCH(comp, family, label) \
+ { \
+ .compatible = comp, \
+ .data = &family##_INFO_##label, \
+ }
+
+#define TWL6030_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWL6030, label)
+#define TWL6032_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWL6032, label)
+#define TWLFIXED_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWLFIXED, label)
+#define TWLSMPS_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWLSMPS, label)
+
+static const struct of_device_id twl_of_match[] = {
+ TWL6030_OF_MATCH("ti,twl6030-vdd1", VDD1),
+ TWL6030_OF_MATCH("ti,twl6030-vdd2", VDD2),
+ TWL6030_OF_MATCH("ti,twl6030-vdd3", VDD3),
+ TWL6030_OF_MATCH("ti,twl6030-vaux1", VAUX1_6030),
+ TWL6030_OF_MATCH("ti,twl6030-vaux2", VAUX2_6030),
+ TWL6030_OF_MATCH("ti,twl6030-vaux3", VAUX3_6030),
+ TWL6030_OF_MATCH("ti,twl6030-vmmc", VMMC),
+ TWL6030_OF_MATCH("ti,twl6030-vpp", VPP),
+ TWL6030_OF_MATCH("ti,twl6030-vusim", VUSIM),
+ TWL6032_OF_MATCH("ti,twl6032-ldo2", LDO2),
+ TWL6032_OF_MATCH("ti,twl6032-ldo4", LDO4),
+ TWL6032_OF_MATCH("ti,twl6032-ldo3", LDO3),
+ TWL6032_OF_MATCH("ti,twl6032-ldo5", LDO5),
+ TWL6032_OF_MATCH("ti,twl6032-ldo1", LDO1),
+ TWL6032_OF_MATCH("ti,twl6032-ldo7", LDO7),
+ TWL6032_OF_MATCH("ti,twl6032-ldo6", LDO6),
+ TWL6032_OF_MATCH("ti,twl6032-ldoln", LDOLN),
+ TWL6032_OF_MATCH("ti,twl6032-ldousb", LDOUSB),
+ TWLFIXED_OF_MATCH("ti,twl6030-vana", VANA),
+ TWLFIXED_OF_MATCH("ti,twl6030-vcxio", VCXIO),
+ TWLFIXED_OF_MATCH("ti,twl6030-vdac", VDAC),
+ TWLFIXED_OF_MATCH("ti,twl6030-vusb", VUSB),
+ TWLFIXED_OF_MATCH("ti,twl6030-v1v8", V1V8),
+ TWLFIXED_OF_MATCH("ti,twl6030-v2v1", V2V1),
+ TWLSMPS_OF_MATCH("ti,twl6032-smps3", SMPS3),
+ TWLSMPS_OF_MATCH("ti,twl6032-smps4", SMPS4),
+ TWLSMPS_OF_MATCH("ti,twl6032-vio", VIO),
+ {},
+};
+MODULE_DEVICE_TABLE(of, twl_of_match);
+
+static int twlreg_probe(struct platform_device *pdev)
+{
+ int id;
+ struct twlreg_info *info;
+ const struct twlreg_info *template;
+ struct regulator_init_data *initdata;
+ struct regulation_constraints *c;
+ struct regulator_dev *rdev;
+ struct regulator_config config = { };
+ struct device_node *np = pdev->dev.of_node;
+
+ template = of_device_get_match_data(&pdev->dev);
+ if (!template)
+ return -ENODEV;
+
+ id = template->desc.id;
+ initdata = of_get_regulator_init_data(&pdev->dev, np, &template->desc);
+ if (!initdata)
+ return -EINVAL;
+
+ info = devm_kmemdup(&pdev->dev, template, sizeof(*info), GFP_KERNEL);
+ if (!info)
+ return -ENOMEM;
+
+ /* Constrain board-specific capabilities according to what
+ * this driver and the chip itself can actually do.
+ */
+ c = &initdata->constraints;
+ c->valid_modes_mask &= REGULATOR_MODE_NORMAL | REGULATOR_MODE_STANDBY;
+ c->valid_ops_mask &= REGULATOR_CHANGE_VOLTAGE
+ | REGULATOR_CHANGE_MODE
+ | REGULATOR_CHANGE_STATUS;
+
+ switch (id) {
+ case TWL6032_REG_SMPS3:
+ if (twl_get_smps_mult() & SMPS_MULTOFFSET_SMPS3)
+ info->flags |= SMPS_EXTENDED_EN;
+ if (twl_get_smps_offset() & SMPS_MULTOFFSET_SMPS3)
+ info->flags |= SMPS_OFFSET_EN;
+ break;
+ case TWL6032_REG_SMPS4:
+ if (twl_get_smps_mult() & SMPS_MULTOFFSET_SMPS4)
+ info->flags |= SMPS_EXTENDED_EN;
+ if (twl_get_smps_offset() & SMPS_MULTOFFSET_SMPS4)
+ info->flags |= SMPS_OFFSET_EN;
+ break;
+ case TWL6032_REG_VIO:
+ if (twl_get_smps_mult() & SMPS_MULTOFFSET_VIO)
+ info->flags |= SMPS_EXTENDED_EN;
+ if (twl_get_smps_offset() & SMPS_MULTOFFSET_VIO)
+ info->flags |= SMPS_OFFSET_EN;
+ break;
+ }
+
+ if (of_get_property(np, "ti,retain-on-reset", NULL))
+ info->flags |= TWL_6030_WARM_RESET;
+
+ config.dev = &pdev->dev;
+ config.init_data = initdata;
+ config.driver_data = info;
+ config.of_node = np;
+
+ rdev = devm_regulator_register(&pdev->dev, &info->desc, &config);
+ if (IS_ERR(rdev)) {
+ dev_err(&pdev->dev, "can't register %s, %ld\n",
+ info->desc.name, PTR_ERR(rdev));
+ return PTR_ERR(rdev);
+ }
+ platform_set_drvdata(pdev, rdev);
+
+ /* NOTE: many regulators support short-circuit IRQs (presentable
+ * as REGULATOR_OVER_CURRENT notifications?) configured via:
+ * - SC_CONFIG
+ * - SC_DETECT1 (vintana2, vmmc1/2, vaux1/2/3/4)
+ * - SC_DETECT2 (vusb, vdac, vio, vdd1/2, vpll2)
+ * - IT_CONFIG
+ */
+
+ return 0;
+}
+
+MODULE_ALIAS("platform:twl6030_reg");
+
+static struct platform_driver twlreg_driver = {
+ .probe = twlreg_probe,
+ /* NOTE: short name, to work around driver model truncation of
+ * "twl_regulator.12" (and friends) to "twl_regulator.1".
+ */
+ .driver = {
+ .name = "twl6030_reg",
+ .of_match_table = of_match_ptr(twl_of_match),
+ },
+};
+
+static int __init twlreg_init(void)
+{
+ return platform_driver_register(&twlreg_driver);
+}
+subsys_initcall(twlreg_init);
+
+static void __exit twlreg_exit(void)
+{
+ platform_driver_unregister(&twlreg_driver);
+}
+module_exit(twlreg_exit)
+
+MODULE_DESCRIPTION("TWL6030 regulator driver");
+MODULE_LICENSE("GPL");
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-07 01:51:41 +0000