--- /dev/null
+/*
+ * Copyright (C) 2012-2015 Samsung Electronics
+ *
+ * Rajeshwari Shinde <rajeshwari.s@samsung.com>
+ * Przemyslaw Marczak <p.marczak@samsung.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <fdtdec.h>
+#include <errno.h>
+#include <dm.h>
+#include <i2c.h>
+#include <power/pmic.h>
+#include <power/regulator.h>
+#include <power/max77686_pmic.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;
+ /**
+ * Those use voltage scaller - temporary not implemented
+ * so return just 0
+ */
+ return -ENOSYS;
+ 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);
+ break;
+ case 2:
+ case 3:
+ case 4:
+ *modesp = max77686_buck_mode_lpm;
+ ret = ARRAY_SIZE(max77686_buck_mode_lpm);
+ break;
+ 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,
+ struct udevice *dev)
+{
+ 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);
+ break;
+ default:
+ *modesp = max77686_ldo_mode_standby1;
+ ret = ARRAY_SIZE(max77686_ldo_mode_standby1);
+ }
+
+ return ret;
+}
+
+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 = dev->driver_data;
+ 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 hex;
+
+ 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 = dev->driver_data;
+ 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 use voltage scallers - will support in the future */
+ mask = MAX77686_BUCK234_VOLT_MASK;
+ return -ENOSYS;
+ 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 hex;
+
+ 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 = dev->driver_data;
+ 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 = dev->driver_data;
+ 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_probe(struct udevice *dev)
+{
+ struct dm_regulator_uclass_platdata *uc_pdata;
+
+ uc_pdata = dev_get_uclass_platdata(dev);
+
+ uc_pdata->type = REGULATOR_TYPE_LDO;
+ uc_pdata->mode_count = max77686_ldo_modes(dev->driver_data,
+ &uc_pdata->mode, dev);
+
+ 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_probe(struct udevice *dev)
+{
+ struct dm_regulator_uclass_platdata *uc_pdata;
+
+ uc_pdata = dev_get_uclass_platdata(dev);
+
+ uc_pdata->type = REGULATOR_TYPE_BUCK;
+ uc_pdata->mode_count = max77686_buck_modes(dev->driver_data,
+ &uc_pdata->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,
+};
+
+U_BOOT_DRIVER(max77686_ldo) = {
+ .name = MAX77686_LDO_DRIVER,
+ .id = UCLASS_REGULATOR,
+ .ops = &max77686_ldo_ops,
+ .probe = max77686_ldo_probe,
+};
+
+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,
+};
+
+U_BOOT_DRIVER(max77686_buck) = {
+ .name = MAX77686_BUCK_DRIVER,
+ .id = UCLASS_REGULATOR,
+ .ops = &max77686_buck_ops,
+ .probe = max77686_buck_probe,
+};
* @dev - regulator device
* Sets:
* @uV - set the output value [micro Volts]
- * Returns: output value [uV] on success or negative errno if fail.
+ * @return output value [uV] on success or negative errno if fail.
*/
int (*get_value)(struct udevice *dev);
int (*set_value)(struct udevice *dev, int uV);
* @dev - regulator device
* Sets:
* @uA - set the output current [micro Amps]
- * Returns: output value [uA] on success or negative errno if fail.
+ * @return output value [uA] on success or negative errno if fail.
*/
int (*get_current)(struct udevice *dev);
int (*set_current)(struct udevice *dev, int uA);
* @dev - regulator device
* Sets:
* @enable - set true - enable or false - disable
- * Returns: true/false for get; or 0 / -errno for set.
+ * @return true/false for get; or 0 / -errno for set.
*/
bool (*get_enable)(struct udevice *dev);
int (*set_enable)(struct udevice *dev, bool enable);
/**
- * The 'get/set_mode()' function calls should operate on a driver
+ * The 'get/set_mode()' function calls should operate on a driver-
* specific mode definitions, which should be found in:
* field 'mode' of struct mode_desc.
*
* @dev - regulator device
* Sets
* @mode_id - set output mode id (struct dm_regulator_mode->id)
- * Returns: id/0 for get/set on success or negative errno if fail.
+ * @return id/0 for get/set on success or negative errno if fail.
* Note:
* The field 'id' of struct type 'dm_regulator_mode', should be always
* positive number, since the negative is reserved for the error.
*
* @dev - pointer to the regulator device
* @modep - pointer to the returned mode info array
- * Returns - count of modep entries on success or negative errno if fail.
+ * @return - count of modep entries on success or negative errno if fail.
*/
int regulator_mode(struct udevice *dev, struct dm_regulator_mode **modep);
* regulator_get_value: get microvoltage voltage value of a given regulator
*
* @dev - pointer to the regulator device
- * Returns - positive output value [uV] on success or negative errno if fail.
+ * @return - positive output value [uV] on success or negative errno if fail.
*/
int regulator_get_value(struct udevice *dev);
*
* @dev - pointer to the regulator device
* @uV - the output value to set [micro Volts]
- * Returns - 0 on success or -errno val if fails
+ * @return - 0 on success or -errno val if fails
*/
int regulator_set_value(struct udevice *dev, int uV);
* regulator_get_current: get microampere value of a given regulator
*
* @dev - pointer to the regulator device
- * Returns - positive output current [uA] on success or negative errno if fail.
+ * @return - positive output current [uA] on success or negative errno if fail.
*/
int regulator_get_current(struct udevice *dev);
*
* @dev - pointer to the regulator device
* @uA - set the output current [micro Amps]
- * Returns - 0 on success or -errno val if fails
+ * @return - 0 on success or -errno val if fails
*/
int regulator_set_current(struct udevice *dev, int uA);
* regulator_get_enable: get regulator device enable state.
*
* @dev - pointer to the regulator device
- * Returns - true/false of enable state
+ * @return - true/false of enable state
*/
bool regulator_get_enable(struct udevice *dev);
*
* @dev - pointer to the regulator device
* @enable - set true or false
- * Returns - 0 on success or -errno val if fails
+ * @return - 0 on success or -errno val if fails
*/
int regulator_set_enable(struct udevice *dev, bool enable);
* regulator_get_mode: get mode of a given device regulator
*
* @dev - pointer to the regulator device
- * Returns - positive mode number on success or -errno val if fails
+ * @return - positive mode number on success or -errno val if fails
* Note:
* The regulator driver should return one of defined, mode number rather, than
* the raw register value. The struct type 'mode_desc' provides a field 'mode'
*
* @dev - pointer to the regulator device
* @mode - mode type (field 'mode' of struct mode_desc)
- * Returns - 0 on success or -errno value if fails
+ * @return - 0 on success or -errno value if fails
* Note:
* The regulator driver should take one of defined, mode number rather
* than a raw register value. The struct type 'regulator_mode_desc' has
* in device's uclass's platform data (struct dm_regulator_uclass_platdata):
* - Voltage value - will set - if '.min_uV' and '.max_uV' values are equal
* - Current limit - will set - if '.min_uA' and '.max_uA' values are equal
- * - Enable - will set - if '.always_on' or '.boot_on' are set to true
+ * - Enable - will set - if any of: '.always_on' or '.boot_on', is set to true
*
* The function returns on first encountered error.
*
* @platname - expected string for dm_regulator_uclass_platdata .name field
* @devp - returned pointer to the regulator device - if non-NULL passed
* @verbose - (true/false) print regulator setup info, or be quiet
- * Returns: 0 on success or negative value of errno.
+ * @return: 0 on success or negative value of errno.
*
* The returned 'regulator' device can be used with:
* - regulator_get/set_*
* @list_devp - an array of returned pointers to the successfully setup
* regulator devices if non-NULL passed
* @verbose - (true/false) print each regulator setup info, or be quiet
- * Returns: 0 on successfully setup of all list entries or 1 otwerwise.
+ * @return 0 on successfully setup of all list entries or 1 otwerwise.
*
* The returned 'regulator' devices can be used with:
* - regulator_get/set_*
* Search by name, found in regulator device's name.
*
* @devname - expected string for 'dev->name' of regulator device
- * @devp - returned pointer to the regulator device
- * Returns: 0 on success or negative value of errno.
+ * @devp - returned pointer to the regulator device
+ * @return 0 on success or negative value of errno.
*
* The returned 'regulator' device can be used with:
* - regulator_get/set_*
* regulator_by_platname: returns the pointer to the pmic regulator device.
* Search by name, found in regulator uclass platdata.
*
- * @platname - expected string for dm_regulator_uclass_platdata .name field
+ * @platname - expected string for uc_pdata->name of regulator uclass platdata
* @devp - returned pointer to the regulator device
- * Returns: 0 on success or negative value of errno.
+ * @return 0 on success or negative value of errno.
*
* The returned 'regulator' device can be used with:
* - regulator_get/set_*
projects / platform / kernel / u-boot.git / commitdiff