[U-Boot] [PATCH v3 11/17] dm: regulator: add max77686 regulator driver
Przemyslaw Marczak
p.marczak at samsung.com
Tue Mar 24 21:30:45 CET 2015
This commit adds support to max77686 regulator driver
based on a uclass regulator driver-model api, which
provides implementation of all uclass regulator api
function calls.
New file: drivers/power/regulator/max77686.c
New config: CONFIG_DM_REGULATOR_MAX77686
Signed-off-by: Przemyslaw Marczak <p.marczak at samsung.com>
---
Changes V2:
- change debug() to error()
- code cleanup
- fix data types
- ldo/buck state implementation
- adjust to new uclass api
Changes V3:
- regulator/max77686.c:
-- adjust to api changes
-- add separeted drivers for buck and ldo
-- bind regulators by its compatibles
- Kconfig: add regulator max77686 entry
---
Makefile | 1 +
drivers/power/Kconfig | 8 +
drivers/power/Makefile | 1 -
drivers/power/regulator/Makefile | 8 +
drivers/power/regulator/max77686.c | 876 +++++++++++++++++++++++++++++++++++++
include/power/max77686_pmic.h | 24 +-
6 files changed, 914 insertions(+), 4 deletions(-)
create mode 100644 drivers/power/regulator/Makefile
create mode 100644 drivers/power/regulator/max77686.c
diff --git a/Makefile b/Makefile
index 1b3ebe7..9ecf3bb 100644
--- a/Makefile
+++ b/Makefile
@@ -632,6 +632,7 @@ libs-y += drivers/power/ \
drivers/power/fuel_gauge/ \
drivers/power/mfd/ \
drivers/power/pmic/ \
+ drivers/power/regulator/ \
drivers/power/battery/
libs-y += drivers/spi/
libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/
diff --git a/drivers/power/Kconfig b/drivers/power/Kconfig
index c4d4c72..97abbf0 100644
--- a/drivers/power/Kconfig
+++ b/drivers/power/Kconfig
@@ -112,6 +112,14 @@ config DM_REGULATOR
Say y here to enable support for the axp221 / axp223 pmic found on most
sun6i (A31) / sun8i (A23) boards.
+config DM_REGULATOR_MAX77686
+ bool "Enable Driver Model for REGULATOR MAX77686"
+ depends on DM_REGULATOR && DM_PMIC_MAX77686
+ ---help---
+ This config enables implementation of driver-model regulator uclass
+ features for REGULATOR MAX77686. The driver implements get/set api for:
+ value, enable and mode.
+
config AXP221_DCDC1_VOLT
int "axp221 dcdc1 voltage"
depends on AXP221_POWER
diff --git a/drivers/power/Makefile b/drivers/power/Makefile
index a6b7012..f206bdd 100644
--- a/drivers/power/Makefile
+++ b/drivers/power/Makefile
@@ -15,7 +15,6 @@ obj-$(CONFIG_TPS6586X_POWER) += tps6586x.o
obj-$(CONFIG_TWL4030_POWER) += twl4030.o
obj-$(CONFIG_TWL6030_POWER) += twl6030.o
obj-$(CONFIG_PALMAS_POWER) += palmas.o
-
obj-$(CONFIG_POWER) += power_core.o
obj-$(CONFIG_DIALOG_POWER) += power_dialog.o
obj-$(CONFIG_POWER_FSL) += power_fsl.o
diff --git a/drivers/power/regulator/Makefile b/drivers/power/regulator/Makefile
new file mode 100644
index 0000000..9d282e3
--- /dev/null
+++ b/drivers/power/regulator/Makefile
@@ -0,0 +1,8 @@
+#
+# Copyright (C) 2014 Samsung Electronics
+# Przemyslaw Marczak <p.marczak at samsung.com>
+#
+# SPDX-License-Identifier: GPL-2.0+
+#
+
+obj-$(CONFIG_DM_REGULATOR_MAX77686) += max77686.o
diff --git a/drivers/power/regulator/max77686.c b/drivers/power/regulator/max77686.c
new file mode 100644
index 0000000..496c70a
--- /dev/null
+++ b/drivers/power/regulator/max77686.c
@@ -0,0 +1,876 @@
+/*
+ * Copyright (C) 2012-2015 Samsung Electronics
+ *
+ * Rajeshwari Shinde <rajeshwari.s at samsung.com>
+ * Przemyslaw Marczak <p.marczak at samsung.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <fdtdec.h>
+#include <i2c.h>
+#include <dm.h>
+#include <power/pmic.h>
+#include <power/regulator.h>
+#include <power/max77686_pmic.h>
+#include <errno.h>
+#include <dm.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define MODE(_id, _val, _name) { \
+ .id = _id, \
+ .register_value = _val, \
+ .name = _name, \
+}
+
+/* LDO: 1,3,4,5,9,17,18,19,20,21,22,23,24,26,26,27 */
+static struct dm_regulator_mode max77686_ldo_mode_standby1[] = {
+ MODE(OPMODE_OFF, MAX77686_LDO_MODE_OFF, "OFF"),
+ MODE(OPMODE_LPM, MAX77686_LDO_MODE_LPM, "LPM"),
+ MODE(OPMODE_STANDBY_LPM, MAX77686_LDO_MODE_STANDBY_LPM, "ON/LPM"),
+ MODE(OPMODE_ON, MAX77686_LDO_MODE_ON, "ON"),
+};
+
+/* LDO: 2,6,7,8,10,11,12,14,15,16 */
+static struct dm_regulator_mode max77686_ldo_mode_standby2[] = {
+ MODE(OPMODE_OFF, MAX77686_LDO_MODE_OFF, "OFF"),
+ MODE(OPMODE_STANDBY, MAX77686_LDO_MODE_STANDBY, "ON/OFF"),
+ MODE(OPMODE_STANDBY_LPM, MAX77686_LDO_MODE_STANDBY_LPM, "ON/LPM"),
+ MODE(OPMODE_ON, MAX77686_LDO_MODE_ON, "ON"),
+};
+
+/* Buck: 1 */
+static struct dm_regulator_mode max77686_buck_mode_standby[] = {
+ MODE(OPMODE_OFF, MAX77686_BUCK_MODE_OFF, "OFF"),
+ MODE(OPMODE_STANDBY, MAX77686_BUCK_MODE_STANDBY, "ON/OFF"),
+ MODE(OPMODE_ON, MAX77686_BUCK_MODE_ON, "ON"),
+};
+
+/* Buck: 2,3,4 */
+static struct dm_regulator_mode max77686_buck_mode_lpm[] = {
+ MODE(OPMODE_OFF, MAX77686_BUCK_MODE_OFF, "OFF"),
+ MODE(OPMODE_STANDBY, MAX77686_BUCK_MODE_STANDBY, "ON/OFF"),
+ MODE(OPMODE_LPM, MAX77686_BUCK_MODE_LPM, "LPM"),
+ MODE(OPMODE_ON, MAX77686_BUCK_MODE_ON, "ON"),
+};
+
+/* Buck: 5,6,7,8,9 */
+static struct dm_regulator_mode max77686_buck_mode_onoff[] = {
+ MODE(OPMODE_OFF, MAX77686_BUCK_MODE_OFF, "OFF"),
+ MODE(OPMODE_ON, MAX77686_BUCK_MODE_ON, "ON"),
+};
+
+static const char max77686_buck_addr[] = {
+ 0xff, 0x10, 0x12, 0x1c, 0x26, 0x30, 0x32, 0x34, 0x36, 0x38
+};
+
+static int max77686_buck_volt2hex(int buck, int uV)
+{
+ unsigned int hex = 0;
+ unsigned int hex_max = 0;
+
+ switch (buck) {
+ case 2:
+ case 3:
+ case 4:
+ /* hex = (uV - 600000) / 12500; */
+ hex = (uV - MAX77686_BUCK_UV_LMIN) / MAX77686_BUCK_UV_LSTEP;
+ hex_max = MAX77686_BUCK234_VOLT_MAX_HEX;
+ /**
+ * This uses voltage scaller - temporary not implemented
+ * so return just 0
+ */
+ return 0;
+ default:
+ /* hex = (uV - 750000) / 50000; */
+ hex = (uV - MAX77686_BUCK_UV_HMIN) / MAX77686_BUCK_UV_HSTEP;
+ hex_max = MAX77686_BUCK_VOLT_MAX_HEX;
+ break;
+ }
+
+ if (hex >= 0 && hex <= hex_max)
+ return hex;
+
+ error("Value: %d uV is wrong for BUCK%d", uV, buck);
+ return -EINVAL;
+}
+
+static int max77686_buck_hex2volt(int buck, int hex)
+{
+ unsigned uV = 0;
+ unsigned int hex_max = 0;
+
+ if (hex < 0)
+ goto bad_hex;
+
+ switch (buck) {
+ case 2:
+ case 3:
+ case 4:
+ hex_max = MAX77686_BUCK234_VOLT_MAX_HEX;
+ if (hex > hex_max)
+ goto bad_hex;
+
+ /* uV = hex * 12500 + 600000; */
+ uV = hex * MAX77686_BUCK_UV_LSTEP + MAX77686_BUCK_UV_LMIN;
+ break;
+ default:
+ hex_max = MAX77686_BUCK_VOLT_MAX_HEX;
+ if (hex > hex_max)
+ goto bad_hex;
+
+ /* uV = hex * 50000 + 750000; */
+ uV = hex * MAX77686_BUCK_UV_HSTEP + MAX77686_BUCK_UV_HMIN;
+ break;
+ }
+
+ return uV;
+
+bad_hex:
+ error("Value: %#x is wrong for BUCK%d", hex, buck);
+ return -EINVAL;
+}
+
+static int max77686_ldo_volt2hex(int ldo, int uV)
+{
+ unsigned int hex = 0;
+
+ switch (ldo) {
+ case 1:
+ case 2:
+ case 6:
+ case 7:
+ case 8:
+ case 15:
+ hex = (uV - MAX77686_LDO_UV_MIN) / MAX77686_LDO_UV_LSTEP;
+ /* hex = (uV - 800000) / 25000; */
+ break;
+ default:
+ hex = (uV - MAX77686_LDO_UV_MIN) / MAX77686_LDO_UV_HSTEP;
+ /* hex = (uV - 800000) / 50000; */
+ }
+
+ if (hex >= 0 && hex <= MAX77686_LDO_VOLT_MAX_HEX)
+ return hex;
+
+ error("Value: %d uV is wrong for LDO%d", uV, ldo);
+ return -EINVAL;
+}
+
+static int max77686_ldo_hex2volt(int ldo, int hex)
+{
+ unsigned int uV = 0;
+
+ if (hex > MAX77686_LDO_VOLT_MAX_HEX)
+ goto bad_hex;
+
+ switch (ldo) {
+ case 1:
+ case 2:
+ case 6:
+ case 7:
+ case 8:
+ case 15:
+ /* uV = hex * 25000 + 800000; */
+ uV = hex * MAX77686_LDO_UV_LSTEP + MAX77686_LDO_UV_MIN;
+ break;
+ default:
+ /* uV = hex * 50000 + 800000; */
+ uV = hex * MAX77686_LDO_UV_HSTEP + MAX77686_LDO_UV_MIN;
+ }
+
+ return uV;
+
+bad_hex:
+ error("Value: %#x is wrong for ldo%d", hex, ldo);
+ return -EINVAL;
+}
+
+static int max77686_ldo_hex2mode(int ldo, int hex)
+{
+ if (hex > MAX77686_LDO_MODE_MASK)
+ return -EINVAL;
+
+ switch (hex) {
+ case MAX77686_LDO_MODE_OFF:
+ return OPMODE_OFF;
+ case MAX77686_LDO_MODE_LPM: /* == MAX77686_LDO_MODE_STANDBY: */
+ /* The same mode values but different meaning for each ldo */
+ switch (ldo) {
+ case 2:
+ case 6:
+ case 7:
+ case 8:
+ case 10:
+ case 11:
+ case 12:
+ case 14:
+ case 15:
+ case 16:
+ return OPMODE_STANDBY;
+ default:
+ return OPMODE_LPM;
+ }
+ case MAX77686_LDO_MODE_STANDBY_LPM:
+ return OPMODE_STANDBY_LPM;
+ case MAX77686_LDO_MODE_ON:
+ return OPMODE_ON;
+ default:
+ return -EINVAL;
+ }
+}
+
+static int max77686_buck_hex2mode(int buck, int hex)
+{
+ if (hex > MAX77686_BUCK_MODE_MASK)
+ return -EINVAL;
+
+ switch (hex) {
+ case MAX77686_BUCK_MODE_OFF:
+ return OPMODE_OFF;
+ case MAX77686_BUCK_MODE_ON:
+ return OPMODE_ON;
+ case MAX77686_BUCK_MODE_STANDBY:
+ switch (buck) {
+ case 1:
+ case 2:
+ case 3:
+ case 4:
+ return OPMODE_STANDBY;
+ default:
+ return -EINVAL;
+ }
+ case MAX77686_BUCK_MODE_LPM:
+ switch (buck) {
+ case 2:
+ case 3:
+ case 4:
+ return OPMODE_LPM;
+ default:
+ return -EINVAL;
+ }
+ default:
+ return -EINVAL;
+ }
+}
+
+static int max77686_buck_modes(int buck, struct dm_regulator_mode **modesp)
+{
+ int ret = -EINVAL;
+
+ if (buck < 1 || buck > MAX77686_BUCK_NUM)
+ return ret;
+
+ switch (buck) {
+ case 1:
+ *modesp = max77686_buck_mode_standby;
+ ret = ARRAY_SIZE(max77686_buck_mode_standby);
+ case 2:
+ case 3:
+ case 4:
+ *modesp = max77686_buck_mode_lpm;
+ ret = ARRAY_SIZE(max77686_buck_mode_lpm);
+ default:
+ *modesp = max77686_buck_mode_onoff;
+ ret = ARRAY_SIZE(max77686_buck_mode_onoff);
+ }
+
+ return ret;
+}
+
+static int max77686_ldo_modes(int ldo, struct dm_regulator_mode **modesp)
+{
+ int ret = -EINVAL;
+
+ if (ldo < 1 || ldo > MAX77686_LDO_NUM)
+ return ret;
+
+ switch (ldo) {
+ case 2:
+ case 6:
+ case 7:
+ case 8:
+ case 10:
+ case 11:
+ case 12:
+ case 14:
+ case 15:
+ case 16:
+ *modesp = max77686_ldo_mode_standby2;
+ ret = ARRAY_SIZE(max77686_ldo_mode_standby2);
+ default:
+ *modesp = max77686_ldo_mode_standby1;
+ ret = ARRAY_SIZE(max77686_ldo_mode_standby1);
+ }
+
+ return ret;
+}
+
+static int dev2num(struct udevice *dev)
+{
+ return dev->of_id->data;
+}
+
+static int max77686_ldo_val(struct udevice *dev, int op, int *uV)
+{
+ unsigned int ret, hex, adr;
+ unsigned char val;
+ int ldo;
+
+ if (op == PMIC_OP_GET)
+ *uV = 0;
+
+ ldo = dev2num(dev);
+ if (ldo < 1 || ldo > MAX77686_LDO_NUM) {
+ error("Wrong ldo number: %d", ldo);
+ return -EINVAL;
+ }
+
+ adr = MAX77686_REG_PMIC_LDO1CTRL1 + ldo - 1;
+
+ ret = pmic_read(dev->parent, adr, &val, 1);
+ if (ret)
+ return ret;
+
+ if (op == PMIC_OP_GET) {
+ val &= MAX77686_LDO_VOLT_MASK;
+ ret = max77686_ldo_hex2volt(ldo, val);
+ if (ret < 0)
+ return ret;
+ *uV = ret;
+ return 0;
+ }
+
+ hex = max77686_ldo_volt2hex(ldo, *uV);
+ if (hex < 0)
+ return -EINVAL;
+
+ val &= ~MAX77686_LDO_VOLT_MASK;
+ val |= hex;
+ ret = pmic_write(dev->parent, adr, &val, 1);
+
+ return ret;
+}
+
+static int max77686_buck_val(struct udevice *dev, int op, int *uV)
+{
+ unsigned int hex, ret, mask, adr;
+ unsigned char val;
+ int buck;
+
+ buck = dev2num(dev);
+ if (buck < 1 || buck > MAX77686_BUCK_NUM) {
+ error("Wrong buck number: %d", buck);
+ return -EINVAL;
+ }
+
+ if (op == PMIC_OP_GET)
+ *uV = 0;
+
+ /* &buck_out = ctrl + 1 */
+ adr = max77686_buck_addr[buck] + 1;
+
+ /* mask */
+ switch (buck) {
+ case 2:
+ case 3:
+ case 4:
+ /* Those uses voltage scallers - will support in the future */
+ mask = MAX77686_BUCK234_VOLT_MASK;
+ return -EPERM;
+ default:
+ mask = MAX77686_BUCK_VOLT_MASK;
+ }
+
+ ret = pmic_read(dev->parent, adr, &val, 1);
+ if (ret)
+ return ret;
+
+ if (op == PMIC_OP_GET) {
+ val &= mask;
+ ret = max77686_buck_hex2volt(buck, val);
+ if (ret < 0)
+ return ret;
+ *uV = ret;
+ return 0;
+ }
+
+ hex = max77686_buck_volt2hex(buck, *uV);
+ if (hex < 0)
+ return -EINVAL;
+
+ val &= ~mask;
+ val |= hex;
+ ret = pmic_write(dev->parent, adr, &val, 1);
+
+ return ret;
+}
+
+static int max77686_ldo_mode(struct udevice *dev, int op, int *opmode)
+{
+ unsigned int ret, adr, mode;
+ unsigned char val;
+ int ldo;
+
+ if (op == PMIC_OP_GET)
+ *opmode = -EINVAL;
+
+ ldo = dev2num(dev);
+ if (ldo < 1 || ldo > MAX77686_LDO_NUM) {
+ error("Wrong ldo number: %d", ldo);
+ return -EINVAL;
+ }
+
+ adr = MAX77686_REG_PMIC_LDO1CTRL1 + ldo - 1;
+
+ ret = pmic_read(dev->parent, adr, &val, 1);
+ if (ret)
+ return ret;
+
+ if (op == PMIC_OP_GET) {
+ val &= MAX77686_LDO_MODE_MASK;
+ ret = max77686_ldo_hex2mode(ldo, val);
+ if (ret < 0)
+ return ret;
+ *opmode = ret;
+ return 0;
+ }
+
+ /* mode */
+ switch (*opmode) {
+ case OPMODE_OFF:
+ mode = MAX77686_LDO_MODE_OFF;
+ break;
+ case OPMODE_LPM:
+ switch (ldo) {
+ case 2:
+ case 6:
+ case 7:
+ case 8:
+ case 10:
+ case 11:
+ case 12:
+ case 14:
+ case 15:
+ case 16:
+ return -EINVAL;
+ default:
+ mode = MAX77686_LDO_MODE_LPM;
+ }
+ break;
+ case OPMODE_STANDBY:
+ switch (ldo) {
+ case 2:
+ case 6:
+ case 7:
+ case 8:
+ case 10:
+ case 11:
+ case 12:
+ case 14:
+ case 15:
+ case 16:
+ mode = MAX77686_LDO_MODE_STANDBY;
+ break;
+ default:
+ return -EINVAL;
+ }
+ break;
+ case OPMODE_STANDBY_LPM:
+ mode = MAX77686_LDO_MODE_STANDBY_LPM;
+ break;
+ case OPMODE_ON:
+ mode = MAX77686_LDO_MODE_ON;
+ break;
+ default:
+ mode = 0xff;
+ }
+
+ if (mode == 0xff) {
+ error("Wrong mode: %d for ldo%d", *opmode, ldo);
+ return -EINVAL;
+ }
+
+ val &= ~MAX77686_LDO_MODE_MASK;
+ val |= mode;
+ ret = pmic_write(dev->parent, adr, &val, 1);
+
+ return ret;
+}
+
+static int max77686_ldo_enable(struct udevice *dev, int op, bool *enable)
+{
+ int ret, on_off;
+
+ if (op == PMIC_OP_GET) {
+ ret = max77686_ldo_mode(dev, op, &on_off);
+ if (ret)
+ return ret;
+
+ switch (on_off) {
+ case OPMODE_OFF:
+ *enable = 0;
+ break;
+ case OPMODE_ON:
+ *enable = 1;
+ break;
+ default:
+ return -EINVAL;
+ }
+ } else if (op == PMIC_OP_SET) {
+ switch (*enable) {
+ case 0:
+ on_off = OPMODE_OFF;
+ break;
+ case 1:
+ on_off = OPMODE_ON;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ ret = max77686_ldo_mode(dev, op, &on_off);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
+static int max77686_buck_mode(struct udevice *dev, int op, int *opmode)
+{
+ unsigned int ret, mask, adr, mode, mode_shift;
+ unsigned char val;
+ int buck;
+
+ buck = dev2num(dev);
+ if (buck < 1 || buck > MAX77686_BUCK_NUM) {
+ error("Wrong buck number: %d", buck);
+ return -EINVAL;
+ }
+
+ adr = max77686_buck_addr[buck];
+
+ /* mask */
+ switch (buck) {
+ case 2:
+ case 3:
+ case 4:
+ mode_shift = MAX77686_BUCK_MODE_SHIFT_2;
+ break;
+ default:
+ mode_shift = MAX77686_BUCK_MODE_SHIFT_1;
+ }
+
+ mask = MAX77686_BUCK_MODE_MASK << mode_shift;
+
+ ret = pmic_read(dev->parent, adr, &val, 1);
+ if (ret)
+ return ret;
+
+ if (op == PMIC_OP_GET) {
+ val &= mask;
+ val >>= mode_shift;
+ ret = max77686_buck_hex2mode(buck, val);
+ if (ret < 0)
+ return ret;
+ *opmode = ret;
+ return 0;
+ }
+
+ /* mode */
+ switch (*opmode) {
+ case OPMODE_OFF:
+ mode = MAX77686_BUCK_MODE_OFF;
+ break;
+ case OPMODE_STANDBY:
+ switch (buck) {
+ case 1:
+ case 2:
+ case 3:
+ case 4:
+ mode = MAX77686_BUCK_MODE_STANDBY << mode_shift;
+ break;
+ default:
+ mode = 0xff;
+ }
+ break;
+ case OPMODE_LPM:
+ switch (buck) {
+ case 2:
+ case 3:
+ case 4:
+ mode = MAX77686_BUCK_MODE_LPM << mode_shift;
+ break;
+ default:
+ mode = 0xff;
+ }
+ break;
+ case OPMODE_ON:
+ mode = MAX77686_BUCK_MODE_ON << mode_shift;
+ break;
+ default:
+ mode = 0xff;
+ }
+
+ if (mode == 0xff) {
+ error("Wrong mode: %d for buck: %d\n", *opmode, buck);
+ return -EINVAL;
+ }
+
+ val &= ~mask;
+ val |= mode;
+ ret = pmic_write(dev->parent, adr, &val, 1);
+
+ return ret;
+}
+
+static int max77686_buck_enable(struct udevice *dev, int op, bool *enable)
+{
+ int ret, on_off;
+
+ if (op == PMIC_OP_GET) {
+ ret = max77686_buck_mode(dev, op, &on_off);
+ if (ret)
+ return ret;
+
+ switch (on_off) {
+ case OPMODE_OFF:
+ *enable = false;
+ break;
+ case OPMODE_ON:
+ *enable = true;
+ break;
+ default:
+ return -EINVAL;
+ }
+ } else if (op == PMIC_OP_SET) {
+ switch (*enable) {
+ case 0:
+ on_off = OPMODE_OFF;
+ break;
+ case 1:
+ on_off = OPMODE_ON;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ ret = max77686_buck_mode(dev, op, &on_off);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
+static int max77686_ldo_ofdata_to_platdata(struct udevice *dev)
+{
+ struct dm_regulator_info *info = dev->uclass_priv;
+ int ret;
+
+ ret = regulator_ofdata_to_platdata(dev);
+ if (ret)
+ return ret;
+
+ info->type = REGULATOR_TYPE_LDO;
+ info->mode_count = max77686_ldo_modes(dev2num(dev), &info->mode);
+
+ return 0;
+}
+
+static int ldo_get_value(struct udevice *dev)
+{
+ int uV;
+ int ret;
+
+ ret = max77686_ldo_val(dev, PMIC_OP_GET, &uV);
+ if (ret)
+ return ret;
+
+ return uV;
+}
+
+static int ldo_set_value(struct udevice *dev, int uV)
+{
+ return max77686_ldo_val(dev, PMIC_OP_SET, &uV);
+}
+
+static bool ldo_get_enable(struct udevice *dev)
+{
+ bool enable = false;
+ int ret;
+
+ ret = max77686_ldo_enable(dev, PMIC_OP_GET, &enable);
+ if (ret)
+ return ret;
+
+ return enable;
+}
+
+static int ldo_set_enable(struct udevice *dev, bool enable)
+{
+ return max77686_ldo_enable(dev, PMIC_OP_SET, &enable);
+}
+
+static int ldo_get_mode(struct udevice *dev)
+{
+ int mode;
+ int ret;
+
+ ret = max77686_ldo_mode(dev, PMIC_OP_GET, &mode);
+ if (ret)
+ return ret;
+
+ return mode;
+}
+
+static int ldo_set_mode(struct udevice *dev, int mode)
+{
+ return max77686_ldo_mode(dev, PMIC_OP_SET, &mode);
+}
+
+static int max77686_buck_ofdata_to_platdata(struct udevice *dev)
+{
+ struct dm_regulator_info *info = dev->uclass_priv;
+ int ret;
+
+ ret = regulator_ofdata_to_platdata(dev);
+ if (ret)
+ return ret;
+
+ info->type = REGULATOR_TYPE_BUCK;
+ info->mode_count = max77686_buck_modes(dev2num(dev), &info->mode);
+
+ return 0;
+}
+
+static int buck_get_value(struct udevice *dev)
+{
+ int uV;
+ int ret;
+
+ ret = max77686_buck_val(dev, PMIC_OP_GET, &uV);
+ if (ret)
+ return ret;
+
+ return uV;
+}
+
+static int buck_set_value(struct udevice *dev, int uV)
+{
+ return max77686_buck_val(dev, PMIC_OP_SET, &uV);
+}
+
+static bool buck_get_enable(struct udevice *dev)
+{
+ bool enable = false;
+ int ret;
+
+ ret = max77686_buck_enable(dev, PMIC_OP_GET, &enable);
+ if (ret)
+ return ret;
+
+ return enable;
+}
+
+static int buck_set_enable(struct udevice *dev, bool enable)
+{
+ return max77686_buck_enable(dev, PMIC_OP_SET, &enable);
+}
+
+static int buck_get_mode(struct udevice *dev)
+{
+ int mode;
+ int ret;
+
+ ret = max77686_buck_mode(dev, PMIC_OP_GET, &mode);
+ if (ret)
+ return ret;
+
+ return mode;
+}
+
+static int buck_set_mode(struct udevice *dev, int mode)
+{
+ return max77686_buck_mode(dev, PMIC_OP_SET, &mode);
+}
+
+static const struct dm_regulator_ops max77686_ldo_ops = {
+ .get_value = ldo_get_value,
+ .set_value = ldo_set_value,
+ .get_enable = ldo_get_enable,
+ .set_enable = ldo_set_enable,
+ .get_mode = ldo_get_mode,
+ .set_mode = ldo_set_mode,
+};
+
+static const struct udevice_id max77686_ldo_ids[] = {
+ { .compatible = "LDO1", .data = 1 },
+ { .compatible = "LDO2", .data = 2 },
+ { .compatible = "LDO3", .data = 3 },
+ { .compatible = "LDO4", .data = 4 },
+ { .compatible = "LDO5", .data = 5 },
+ { .compatible = "LDO6", .data = 6 },
+ { .compatible = "LDO7", .data = 7 },
+ { .compatible = "LDO8", .data = 8 },
+ { .compatible = "LDO9", .data = 9 },
+ { .compatible = "LDO10", .data = 10 },
+ { .compatible = "LDO11", .data = 11 },
+ { .compatible = "LDO12", .data = 12 },
+ { .compatible = "LDO13", .data = 13 },
+ { .compatible = "LDO14", .data = 14 },
+ { .compatible = "LDO15", .data = 15 },
+ { .compatible = "LDO16", .data = 16 },
+ { .compatible = "LDO17", .data = 17 },
+ { .compatible = "LDO18", .data = 18 },
+ { .compatible = "LDO19", .data = 19 },
+ { .compatible = "LDO20", .data = 20 },
+ { .compatible = "LDO21", .data = 21 },
+ { .compatible = "LDO22", .data = 22 },
+ { .compatible = "LDO23", .data = 23 },
+ { .compatible = "LDO24", .data = 24 },
+ { .compatible = "LDO25", .data = 25 },
+ { .compatible = "LDO26", .data = 26 },
+ { },
+};
+
+U_BOOT_DRIVER(max77686_ldo) = {
+ .name = "max77686 ldo",
+ .id = UCLASS_REGULATOR,
+ .ops = &max77686_ldo_ops,
+ .of_match = max77686_ldo_ids,
+ .ofdata_to_platdata = max77686_ldo_ofdata_to_platdata,
+};
+
+static const struct dm_regulator_ops max77686_buck_ops = {
+ .get_value = buck_get_value,
+ .set_value = buck_set_value,
+ .get_enable = buck_get_enable,
+ .set_enable = buck_set_enable,
+ .get_mode = buck_get_mode,
+ .set_mode = buck_set_mode,
+};
+
+static const struct udevice_id max77686_buck_ids[] = {
+ { .compatible = "BUCK1", .data = 1 },
+ { .compatible = "BUCK2", .data = 2 },
+ { .compatible = "BUCK3", .data = 3 },
+ { .compatible = "BUCK4", .data = 4 },
+ { .compatible = "BUCK5", .data = 5 },
+ { .compatible = "BUCK6", .data = 6 },
+ { .compatible = "BUCK7", .data = 7 },
+ { .compatible = "BUCK8", .data = 8 },
+ { .compatible = "BUCK9", .data = 9 },
+ { },
+};
+
+U_BOOT_DRIVER(max77686_buck) = {
+ .name = "max77686 buck",
+ .id = UCLASS_REGULATOR,
+ .ops = &max77686_buck_ops,
+ .of_match = max77686_buck_ids,
+ .ofdata_to_platdata = max77686_buck_ofdata_to_platdata,
+};
diff --git a/include/power/max77686_pmic.h b/include/power/max77686_pmic.h
index fe26d13..81c27d8 100644
--- a/include/power/max77686_pmic.h
+++ b/include/power/max77686_pmic.h
@@ -126,7 +126,10 @@ enum {
};
/* I2C device address for pmic max77686 */
-#define MAX77686_I2C_ADDR (0x12 >> 1)
+#define MAX77686_I2C_ADDR (0x12 >> 1)
+#define MAX77686_LDO_NUM 26
+#define MAX77686_BUCK_NUM 9
+#define MAX77686_DESC_NUM (MAX77686_LDO_NUM + MAX77686_BUCK_NUM)
enum {
REG_DISABLE = 0,
@@ -143,23 +146,29 @@ enum {
enum {
OPMODE_OFF = 0,
- OPMODE_STANDBY,
OPMODE_LPM,
+ OPMODE_STANDBY,
+ OPMODE_STANDBY_LPM,
OPMODE_ON,
};
+#ifdef CONFIG_POWER
int max77686_set_ldo_voltage(struct pmic *p, int ldo, ulong uV);
int max77686_set_ldo_mode(struct pmic *p, int ldo, char opmode);
int max77686_set_buck_voltage(struct pmic *p, int buck, ulong uV);
int max77686_set_buck_mode(struct pmic *p, int buck, char opmode);
+#endif
#define MAX77686_LDO_VOLT_MAX_HEX 0x3f
#define MAX77686_LDO_VOLT_MASK 0x3f
#define MAX77686_LDO_MODE_MASK 0xc0
#define MAX77686_LDO_MODE_OFF (0x00 << 0x06)
+#define MAX77686_LDO_MODE_LPM (0x01 << 0x06)
#define MAX77686_LDO_MODE_STANDBY (0x01 << 0x06)
-#define MAX77686_LDO_MODE_LPM (0x02 << 0x06)
+#define MAX77686_LDO_MODE_STANDBY_LPM (0x02 << 0x06)
#define MAX77686_LDO_MODE_ON (0x03 << 0x06)
+#define MAX77686_BUCK234_VOLT_MAX_HEX 0xff
+#define MAX77686_BUCK234_VOLT_MASK 0xff
#define MAX77686_BUCK_VOLT_MAX_HEX 0x3f
#define MAX77686_BUCK_VOLT_MASK 0x3f
#define MAX77686_BUCK_MODE_MASK 0x03
@@ -170,6 +179,15 @@ int max77686_set_buck_mode(struct pmic *p, int buck, char opmode);
#define MAX77686_BUCK_MODE_LPM 0x02
#define MAX77686_BUCK_MODE_ON 0x03
+/* For regulator hex<->volt conversion */
+#define MAX77686_LDO_UV_MIN 800000 /* Minimum LDO uV value */
+#define MAX77686_LDO_UV_LSTEP 25000 /* uV lower value step */
+#define MAX77686_LDO_UV_HSTEP 50000 /* uV higher value step */
+#define MAX77686_BUCK_UV_LMIN 600000 /* Lower minimun BUCK value */
+#define MAX77686_BUCK_UV_HMIN 750000 /* Higher minimun BUCK value */
+#define MAX77686_BUCK_UV_LSTEP 12500 /* uV lower value step */
+#define MAX77686_BUCK_UV_HSTEP 50000 /* uV higher value step */
+
/* Buck1 1 volt value */
#define MAX77686_BUCK1OUT_1V 0x5
/* Buck1 1.05 volt value */
--
1.9.1
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