regulator: add 88PM8607 PMIC driver
Haojian Zhuang [Thu, 8 Oct 2009 06:03:57 +0000 (02:03 -0400)]
Hi Liam,

Since Samuel merged a new version of mfd 88pm8607 driver, I format a
new patch on regulator 88pm8607. I paste the new patch in mail. Please
help to review again. And I also attach the mfd driver in mail.

From: Haojian Zhuang <haojian.zhuang@marvell.com>
Date: Thu, 8 Oct 2009 09:36:53 -0400
Subject: [PATCH] regulator: Add 88PM8607 PMIC driver

This patch adds regulator drivers for Marvell 88PM8607 PMIC.
This controller contains 3 DVC and 14 LDO regulators. This controller
uses I2C interface.

Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>

drivers/regulator/88pm8607.c [new file with mode: 0644]
drivers/regulator/Kconfig
drivers/regulator/Makefile

diff --git a/drivers/regulator/88pm8607.c b/drivers/regulator/88pm8607.c
new file mode 100644 (file)
index 0000000..e1aabda
--- /dev/null
@@ -0,0 +1,684 @@
+/*
+ * Regulators driver for Marvell 88PM8607
+ *
+ * Copyright (C) 2009 Marvell International Ltd.
+ *     Haojian Zhuang <haojian.zhuang@marvell.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/mfd/88pm8607.h>
+
+struct pm8607_regulator_info {
+       struct regulator_desc   desc;
+       struct pm8607_chip      *chip;
+       struct regulator_dev    *regulator;
+
+       int     min_uV;
+       int     max_uV;
+       int     step_uV;
+       int     vol_reg;
+       int     vol_shift;
+       int     vol_nbits;
+       int     update_reg;
+       int     update_bit;
+       int     enable_reg;
+       int     enable_bit;
+       int     slope_double;
+};
+
+static inline int check_range(struct pm8607_regulator_info *info,
+                               int min_uV, int max_uV)
+{
+       if (max_uV < info->min_uV || min_uV > info->max_uV || min_uV > max_uV)
+               return -EINVAL;
+
+       return 0;
+}
+
+static int pm8607_list_voltage(struct regulator_dev *rdev, unsigned index)
+{
+       struct pm8607_regulator_info *info = rdev_get_drvdata(rdev);
+       uint8_t chip_id = info->chip->chip_id;
+       int ret = -EINVAL;
+
+       switch (info->desc.id) {
+       case PM8607_ID_BUCK1:
+               ret = (index < 0x1d) ? (index * 25000 + 800000) :
+                       ((index < 0x20) ? 1500000 :
+                       ((index < 0x40) ? ((index - 0x20) * 25000) :
+                       -EINVAL));
+               break;
+       case PM8607_ID_BUCK3:
+               ret = (index < 0x3d) ? (index * 25000) :
+                       ((index < 0x40) ? 1500000 : -EINVAL);
+               if (ret < 0)
+                       break;
+               if (info->slope_double)
+                       ret <<= 1;
+               break;
+       case PM8607_ID_LDO1:
+               ret = (index == 0) ? 1800000 :
+                       ((index == 1) ? 1200000 :
+                       ((index == 2) ? 2800000 : -EINVAL));
+               break;
+       case PM8607_ID_LDO5:
+               ret = (index == 0) ? 2900000 :
+                       ((index == 1) ? 3000000 :
+                       ((index == 2) ? 3100000 : 3300000));
+               break;
+       case PM8607_ID_LDO7:
+       case PM8607_ID_LDO8:
+               ret = (index < 3) ? (index * 50000 + 1800000) :
+                       ((index < 8) ? (index * 50000 + 2550000) :
+                        -EINVAL);
+               break;
+       case PM8607_ID_LDO12:
+               ret = (index < 2) ? (index * 100000 + 1800000) :
+                       ((index < 7) ? (index * 100000 + 2500000) :
+                       ((index == 7) ? 3300000 : 1200000));
+               break;
+       case PM8607_ID_LDO2:
+       case PM8607_ID_LDO3:
+       case PM8607_ID_LDO9:
+               switch (chip_id) {
+               case PM8607_CHIP_A0:
+               case PM8607_CHIP_A1:
+                       ret = (index < 3) ? (index * 50000 + 1800000) :
+                               ((index < 8) ? (index * 50000 + 2550000) :
+                                -EINVAL);
+                       break;
+               case PM8607_CHIP_B0:
+                       ret = (index < 3) ? (index * 50000 + 1800000) :
+                               ((index < 7) ? (index * 50000 + 2550000) :
+                               3300000);
+                       break;
+               }
+               break;
+       case PM8607_ID_LDO4:
+               switch (chip_id) {
+               case PM8607_CHIP_A0:
+               case PM8607_CHIP_A1:
+                       ret = (index < 3) ? (index * 50000 + 1800000) :
+                               ((index < 8) ? (index * 50000 + 2550000) :
+                                -EINVAL);
+                       break;
+               case PM8607_CHIP_B0:
+                       ret = (index < 3) ? (index * 50000 + 1800000) :
+                               ((index < 6) ? (index * 50000 + 2550000) :
+                               ((index == 6) ? 2900000 : 3300000));
+                       break;
+               }
+               break;
+       case PM8607_ID_LDO6:
+               switch (chip_id) {
+               case PM8607_CHIP_A0:
+               case PM8607_CHIP_A1:
+                       ret = (index < 3) ? (index * 50000 + 1800000) :
+                               ((index < 8) ? (index * 50000 + 2450000) :
+                               -EINVAL);
+                       break;
+               case PM8607_CHIP_B0:
+                       ret = (index < 2) ? (index * 50000 + 1800000) :
+                               ((index < 7) ? (index * 50000 + 2500000) :
+                               3300000);
+                       break;
+               }
+               break;
+       case PM8607_ID_LDO10:
+               switch (chip_id) {
+               case PM8607_CHIP_A0:
+               case PM8607_CHIP_A1:
+                       ret = (index < 3) ? (index * 50000 + 1800000) :
+                               ((index < 8) ? (index * 50000 + 2550000) :
+                               1200000);
+                       break;
+               case PM8607_CHIP_B0:
+                       ret = (index < 3) ? (index * 50000 + 1800000) :
+                               ((index < 7) ? (index * 50000 + 2550000) :
+                               ((index == 7) ? 3300000 : 1200000));
+                       break;
+               }
+               break;
+       case PM8607_ID_LDO14:
+               switch (chip_id) {
+               case PM8607_CHIP_A0:
+               case PM8607_CHIP_A1:
+                       ret = (index < 3) ? (index * 50000 + 1800000) :
+                               ((index < 8) ? (index * 50000 + 2550000) :
+                                -EINVAL);
+                       break;
+               case PM8607_CHIP_B0:
+                       ret = (index < 2) ? (index * 50000 + 1800000) :
+                               ((index < 7) ? (index * 50000 + 2600000) :
+                               3300000);
+                       break;
+               }
+               break;
+       }
+       return ret;
+}
+
+static int choose_voltage(struct regulator_dev *rdev, int min_uV, int max_uV)
+{
+       struct pm8607_regulator_info *info = rdev_get_drvdata(rdev);
+       uint8_t chip_id = info->chip->chip_id;
+       int val, ret;
+
+       switch (info->desc.id) {
+       case PM8607_ID_BUCK1:
+               if (min_uV >= 800000)           /* 800mV ~ 1500mV / 25mV */
+                       val = (min_uV - 775001) / 25000;
+               else {                          /* 25mV ~ 775mV / 25mV */
+                       val = (min_uV + 249999) / 25000;
+                       val += 32;
+               }
+               break;
+       case PM8607_ID_BUCK3:
+               if (info->slope_double)
+                       min_uV = min_uV >> 1;
+               val = (min_uV + 249999) / 25000; /* 0mV ~ 1500mV / 25mV */
+
+               break;
+       case PM8607_ID_LDO1:
+               if (min_uV > 1800000)
+                       val = 2;
+               else if (min_uV > 1200000)
+                       val = 0;
+               else
+                       val = 1;
+               break;
+       case PM8607_ID_LDO5:
+               if (min_uV > 3100000)
+                       val = 3;
+               else                            /* 2900mV ~ 3100mV / 100mV */
+                       val = (min_uV - 2800001) / 100000;
+               break;
+       case PM8607_ID_LDO7:
+       case PM8607_ID_LDO8:
+               if (min_uV < 2700000) { /* 1800mV ~ 1900mV / 50mV */
+                       if (min_uV <= 1800000)
+                               val = 0;        /* 1800mv */
+                       else if (min_uV <= 1900000)
+                               val = (min_uV - 1750001) / 50000;
+                       else
+                               val = 3;        /* 2700mV */
+               } else {                 /* 2700mV ~ 2900mV / 50mV */
+                       if (min_uV <= 2900000) {
+                               val = (min_uV - 2650001) / 50000;
+                               val += 3;
+                       } else
+                               val = -EINVAL;
+               }
+               break;
+       case PM8607_ID_LDO10:
+               if (min_uV > 2850000)
+                       val = 7;
+               else if (min_uV <= 1200000)
+                       val = 8;
+               else if (min_uV < 2700000)      /* 1800mV ~ 1900mV / 50mV */
+                       val = (min_uV - 1750001) / 50000;
+               else {                          /* 2700mV ~ 2850mV / 50mV */
+                       val = (min_uV - 2650001) / 50000;
+                       val += 3;
+               }
+               break;
+       case PM8607_ID_LDO12:
+               if (min_uV < 2700000) {         /* 1800mV ~ 1900mV / 100mV */
+                       if (min_uV <= 1200000)
+                               val = 8;        /* 1200mV */
+                       else if (min_uV <= 1800000)
+                               val = 0;        /* 1800mV */
+                       else if (min_uV <= 1900000)
+                               val = (min_uV - 1700001) / 100000;
+                       else
+                               val = 2;        /* 2700mV */
+               } else {                        /* 2700mV ~ 3100mV / 100mV */
+                       if (min_uV <= 3100000) {
+                               val = (min_uV - 2600001) / 100000;
+                               val += 2;
+                       } else if (min_uV <= 3300000)
+                               val = 7;
+                       else
+                               val = -EINVAL;
+               }
+               break;
+       case PM8607_ID_LDO2:
+       case PM8607_ID_LDO3:
+       case PM8607_ID_LDO9:
+               switch (chip_id) {
+               case PM8607_CHIP_A0:
+               case PM8607_CHIP_A1:
+                       if (min_uV < 2700000)   /* 1800mV ~ 1900mV / 50mV */
+                               if (min_uV <= 1800000)
+                                       val = 0;
+                               else if (min_uV <= 1900000)
+                                       val = (min_uV - 1750001) / 50000;
+                               else
+                                       val = 3;        /* 2700mV */
+                       else {                  /* 2700mV ~ 2900mV / 50mV */
+                               if (min_uV <= 2900000) {
+                                       val = (min_uV - 2650001) / 50000;
+                                       val += 3;
+                               } else
+                                       val = -EINVAL;
+                       }
+                       break;
+               case PM8607_CHIP_B0:
+                       if (min_uV < 2700000) { /* 1800mV ~ 1900mV / 50mV */
+                               if (min_uV <= 1800000)
+                                       val = 0;
+                               else if (min_uV <= 1900000)
+                                       val = (min_uV - 1750001) / 50000;
+                               else
+                                       val = 3;        /* 2700mV */
+                       } else {                 /* 2700mV ~ 2850mV / 50mV */
+                               if (min_uV <= 2850000) {
+                                       val = (min_uV - 2650001) / 50000;
+                                       val += 3;
+                               } else if (min_uV <= 3300000)
+                                       val = 7;
+                               else
+                                       val = -EINVAL;
+                       }
+                       break;
+               }
+               break;
+       case PM8607_ID_LDO4:
+               switch (chip_id) {
+               case PM8607_CHIP_A0:
+               case PM8607_CHIP_A1:
+                       if (min_uV < 2700000)   /* 1800mV ~ 1900mV / 50mV */
+                               if (min_uV <= 1800000)
+                                       val = 0;
+                               else if (min_uV <= 1900000)
+                                       val = (min_uV - 1750001) / 50000;
+                               else
+                                       val = 3;        /* 2700mV */
+                       else {                  /* 2700mV ~ 2900mV / 50mV */
+                               if (min_uV <= 2900000) {
+                                       val = (min_uV - 2650001) / 50000;
+                                       val += 3;
+                               } else
+                                       val = -EINVAL;
+                       }
+                       break;
+               case PM8607_CHIP_B0:
+                       if (min_uV < 2700000) { /* 1800mV ~ 1900mV / 50mV */
+                               if (min_uV <= 1800000)
+                                       val = 0;
+                               else if (min_uV <= 1900000)
+                                       val = (min_uV - 1750001) / 50000;
+                               else
+                                       val = 3;        /* 2700mV */
+                       } else {                 /* 2700mV ~ 2800mV / 50mV */
+                               if (min_uV <= 2850000) {
+                                       val = (min_uV - 2650001) / 50000;
+                                       val += 3;
+                               } else if (min_uV <= 2900000)
+                                       val = 6;
+                               else if (min_uV <= 3300000)
+                                       val = 7;
+                               else
+                                       val = -EINVAL;
+                       }
+                       break;
+               }
+               break;
+       case PM8607_ID_LDO6:
+               switch (chip_id) {
+               case PM8607_CHIP_A0:
+               case PM8607_CHIP_A1:
+                       if (min_uV < 2600000) { /* 1800mV ~ 1900mV / 50mV */
+                               if (min_uV <= 1800000)
+                                       val = 0;
+                               else if (min_uV <= 1900000)
+                                       val = (min_uV - 1750001) / 50000;
+                               else
+                                       val = 3;        /* 2600mV */
+                       } else {                /* 2600mV ~ 2800mV / 50mV */
+                               if (min_uV <= 2800000) {
+                                       val = (min_uV - 2550001) / 50000;
+                                       val += 3;
+                               } else
+                                       val = -EINVAL;
+                       }
+                       break;
+               case PM8607_CHIP_B0:
+                       if (min_uV < 2600000) { /* 1800mV ~ 1850mV / 50mV */
+                               if (min_uV <= 1800000)
+                                       val = 0;
+                               else if (min_uV <= 1850000)
+                                       val = (min_uV - 1750001) / 50000;
+                               else
+                                       val = 2;        /* 2600mV */
+                       } else {                /* 2600mV ~ 2800mV / 50mV */
+                               if (min_uV <= 2800000) {
+                                       val = (min_uV - 2550001) / 50000;
+                                       val += 2;
+                               } else if (min_uV <= 3300000)
+                                       val = 7;
+                               else
+                                       val = -EINVAL;
+                       }
+                       break;
+               }
+               break;
+       case PM8607_ID_LDO14:
+               switch (chip_id) {
+               case PM8607_CHIP_A0:
+               case PM8607_CHIP_A1:
+                       if (min_uV < 2700000) { /* 1800mV ~ 1900mV / 50mV */
+                               if (min_uV <= 1800000)
+                                       val = 0;
+                               else if (min_uV <= 1900000)
+                                       val = (min_uV - 1750001) / 50000;
+                               else
+                                       val = 3;        /* 2700mV */
+                       } else {                 /* 2700mV ~ 2900mV / 50mV */
+                               if (min_uV <= 2900000) {
+                                       val = (min_uV - 2650001) / 50000;
+                                       val += 3;
+                               } else
+                                       val = -EINVAL;
+                       }
+                       break;
+               case PM8607_CHIP_B0:
+                       if (min_uV < 2700000) { /* 1800mV ~ 1850mV / 50mV */
+                               if (min_uV <= 1800000)
+                                       val = 0;
+                               else if (min_uV <= 1850000)
+                                       val = (min_uV - 1750001) / 50000;
+                               else
+                                       val = 2;        /* 2700mV */
+                       } else {                 /* 2700mV ~ 2900mV / 50mV */
+                               if (min_uV <= 2900000) {
+                                       val = (min_uV - 2650001) / 50000;
+                                       val += 2;
+                               } else if (min_uV <= 3300000)
+                                       val = 7;
+                               else
+                                       val = -EINVAL;
+                       }
+                       break;
+               }
+               break;
+       }
+       if (val >= 0) {
+               ret = pm8607_list_voltage(rdev, val);
+               if (ret > max_uV) {
+                       pr_err("exceed voltage range (%d %d) uV",
+                               min_uV, max_uV);
+                       return -EINVAL;
+               }
+       } else
+               pr_err("invalid voltage range (%d %d) uV", min_uV, max_uV);
+       return val;
+}
+
+static int pm8607_set_voltage(struct regulator_dev *rdev,
+                             int min_uV, int max_uV)
+{
+       struct pm8607_regulator_info *info = rdev_get_drvdata(rdev);
+       struct pm8607_chip *chip = info->chip;
+       uint8_t val, mask;
+       int ret;
+
+       if (check_range(info, min_uV, max_uV)) {
+               pr_err("invalid voltage range (%d, %d) uV\n", min_uV, max_uV);
+               return -EINVAL;
+       }
+
+       ret = choose_voltage(rdev, min_uV, max_uV);
+       if (ret < 0)
+               return -EINVAL;
+       val = (uint8_t)(ret << info->vol_shift);
+       mask = ((1 << info->vol_nbits) - 1)  << info->vol_shift;
+
+       ret = pm8607_set_bits(chip, info->vol_reg, mask, val);
+       if (ret)
+               return ret;
+       switch (info->desc.id) {
+       case PM8607_ID_BUCK1:
+       case PM8607_ID_BUCK3:
+               ret = pm8607_set_bits(chip, info->update_reg,
+                                     1 << info->update_bit,
+                                     1 << info->update_bit);
+               break;
+       }
+       return ret;
+}
+
+static int pm8607_get_voltage(struct regulator_dev *rdev)
+{
+       struct pm8607_regulator_info *info = rdev_get_drvdata(rdev);
+       struct pm8607_chip *chip = info->chip;
+       uint8_t val, mask;
+       int ret;
+
+       ret = pm8607_reg_read(chip, info->vol_reg);
+       if (ret < 0)
+               return ret;
+
+       mask = ((1 << info->vol_nbits) - 1)  << info->vol_shift;
+       val = ((unsigned char)ret & mask) >> info->vol_shift;
+
+       return pm8607_list_voltage(rdev, val);
+}
+
+static int pm8607_enable(struct regulator_dev *rdev)
+{
+       struct pm8607_regulator_info *info = rdev_get_drvdata(rdev);
+       struct pm8607_chip *chip = info->chip;
+
+       return pm8607_set_bits(chip, info->enable_reg,
+                              1 << info->enable_bit,
+                              1 << info->enable_bit);
+}
+
+static int pm8607_disable(struct regulator_dev *rdev)
+{
+       struct pm8607_regulator_info *info = rdev_get_drvdata(rdev);
+       struct pm8607_chip *chip = info->chip;
+
+       return pm8607_set_bits(chip, info->enable_reg,
+                              1 << info->enable_bit, 0);
+}
+
+static int pm8607_is_enabled(struct regulator_dev *rdev)
+{
+       struct pm8607_regulator_info *info = rdev_get_drvdata(rdev);
+       struct pm8607_chip *chip = info->chip;
+       int ret;
+
+       ret = pm8607_reg_read(chip, info->enable_reg);
+       if (ret < 0)
+               return ret;
+
+       return !!((unsigned char)ret & (1 << info->enable_bit));
+}
+
+static struct regulator_ops pm8607_regulator_ops = {
+       .set_voltage    = pm8607_set_voltage,
+       .get_voltage    = pm8607_get_voltage,
+       .enable         = pm8607_enable,
+       .disable        = pm8607_disable,
+       .is_enabled     = pm8607_is_enabled,
+};
+
+#define PM8607_DVC(_id, min, max, step, vreg, nbits, ureg, ubit, ereg, ebit) \
+{                                                                      \
+       .desc   = {                                                     \
+               .name   = "BUCK" #_id,                                  \
+               .ops    = &pm8607_regulator_ops,                        \
+               .type   = REGULATOR_VOLTAGE,                            \
+               .id     = PM8607_ID_BUCK##_id,                          \
+               .owner  = THIS_MODULE,                                  \
+       },                                                              \
+       .min_uV         = (min) * 1000,                                 \
+       .max_uV         = (max) * 1000,                                 \
+       .step_uV        = (step) * 1000,                                \
+       .vol_reg        = PM8607_##vreg,                                \
+       .vol_shift      = (0),                                          \
+       .vol_nbits      = (nbits),                                      \
+       .update_reg     = PM8607_##ureg,                                \
+       .update_bit     = (ubit),                                       \
+       .enable_reg     = PM8607_##ereg,                                \
+       .enable_bit     = (ebit),                                       \
+       .slope_double   = (0),                                          \
+}
+
+#define PM8607_LDO(_id, min, max, step, vreg, shift, nbits, ereg, ebit)        \
+{                                                                      \
+       .desc   = {                                                     \
+               .name   = "LDO" #_id,                                   \
+               .ops    = &pm8607_regulator_ops,                        \
+               .type   = REGULATOR_VOLTAGE,                            \
+               .id     = PM8607_ID_LDO##_id,                           \
+               .owner  = THIS_MODULE,                                  \
+       },                                                              \
+       .min_uV         = (min) * 1000,                                 \
+       .max_uV         = (max) * 1000,                                 \
+       .step_uV        = (step) * 1000,                                \
+       .vol_reg        = PM8607_##vreg,                                \
+       .vol_shift      = (shift),                                      \
+       .vol_nbits      = (nbits),                                      \
+       .enable_reg     = PM8607_##ereg,                                \
+       .enable_bit     = (ebit),                                       \
+       .slope_double   = (0),                                          \
+}
+
+static struct pm8607_regulator_info pm8607_regulator_info[] = {
+       PM8607_DVC(1, 0, 1500, 25, BUCK1, 6, GO, 0, SUPPLIES_EN11, 0),
+       PM8607_DVC(3, 0, 1500, 25, BUCK3, 6, GO, 2, SUPPLIES_EN11, 2),
+
+       PM8607_LDO(1 , 1200, 2800, 0, LDO1 , 0, 2, SUPPLIES_EN11, 3),
+       PM8607_LDO(2 , 1800, 3300, 0, LDO2 , 0, 3, SUPPLIES_EN11, 4),
+       PM8607_LDO(3 , 1800, 3300, 0, LDO3 , 0, 3, SUPPLIES_EN11, 5),
+       PM8607_LDO(4 , 1800, 3300, 0, LDO4 , 0, 3, SUPPLIES_EN11, 6),
+       PM8607_LDO(5 , 2900, 3300, 0, LDO5 , 0, 2, SUPPLIES_EN11, 7),
+       PM8607_LDO(6 , 1800, 3300, 0, LDO6 , 0, 3, SUPPLIES_EN12, 0),
+       PM8607_LDO(7 , 1800, 2900, 0, LDO7 , 0, 3, SUPPLIES_EN12, 1),
+       PM8607_LDO(8 , 1800, 2900, 0, LDO8 , 0, 3, SUPPLIES_EN12, 2),
+       PM8607_LDO(9 , 1800, 3300, 0, LDO9 , 0, 3, SUPPLIES_EN12, 3),
+       PM8607_LDO(10, 1200, 3300, 0, LDO10, 0, 4, SUPPLIES_EN11, 4),
+       PM8607_LDO(12, 1200, 3300, 0, LDO12, 0, 4, SUPPLIES_EN11, 5),
+       PM8607_LDO(14, 1800, 3300, 0, LDO14, 0, 3, SUPPLIES_EN11, 6),
+};
+
+static inline struct pm8607_regulator_info *find_regulator_info(int id)
+{
+       struct pm8607_regulator_info *info;
+       int i;
+
+       for (i = 0; i < ARRAY_SIZE(pm8607_regulator_info); i++) {
+               info = &pm8607_regulator_info[i];
+               if (info->desc.id == id)
+                       return info;
+       }
+       return NULL;
+}
+
+static int __devinit pm8607_regulator_probe(struct platform_device *pdev)
+{
+       struct pm8607_chip *chip = dev_get_drvdata(pdev->dev.parent);
+       struct pm8607_platform_data *pdata = chip->dev->platform_data;
+       struct pm8607_regulator_info *info = NULL;
+
+       info = find_regulator_info(pdev->id);
+       if (info == NULL) {
+               dev_err(&pdev->dev, "invalid regulator ID specified\n");
+               return -EINVAL;
+       }
+
+       info->chip = chip;
+
+       info->regulator = regulator_register(&info->desc, &pdev->dev,
+                                            pdata->regulator[pdev->id], info);
+       if (IS_ERR(info->regulator)) {
+               dev_err(&pdev->dev, "failed to register regulator %s\n",
+                       info->desc.name);
+               return PTR_ERR(info->regulator);
+       }
+
+       /* check DVC ramp slope double */
+       if (info->desc.id == PM8607_ID_BUCK3)
+               if (info->chip->buck3_double)
+                       info->slope_double = 1;
+
+       platform_set_drvdata(pdev, info);
+       return 0;
+}
+
+static int __devexit pm8607_regulator_remove(struct platform_device *pdev)
+{
+       struct pm8607_regulator_info *info = platform_get_drvdata(pdev);
+
+       regulator_unregister(info->regulator);
+       return 0;
+}
+
+#define PM8607_REGULATOR_DRIVER(_name)                         \
+{                                                              \
+       .driver         = {                                     \
+               .name   = "88pm8607-" #_name,                   \
+               .owner  = THIS_MODULE,                          \
+       },                                                      \
+       .probe          = pm8607_regulator_probe,               \
+       .remove         = __devexit_p(pm8607_regulator_remove), \
+}
+
+static struct platform_driver pm8607_regulator_driver[] = {
+       PM8607_REGULATOR_DRIVER(buck1),
+       PM8607_REGULATOR_DRIVER(buck2),
+       PM8607_REGULATOR_DRIVER(buck3),
+       PM8607_REGULATOR_DRIVER(ldo1),
+       PM8607_REGULATOR_DRIVER(ldo2),
+       PM8607_REGULATOR_DRIVER(ldo3),
+       PM8607_REGULATOR_DRIVER(ldo4),
+       PM8607_REGULATOR_DRIVER(ldo5),
+       PM8607_REGULATOR_DRIVER(ldo6),
+       PM8607_REGULATOR_DRIVER(ldo7),
+       PM8607_REGULATOR_DRIVER(ldo8),
+       PM8607_REGULATOR_DRIVER(ldo9),
+       PM8607_REGULATOR_DRIVER(ldo10),
+       PM8607_REGULATOR_DRIVER(ldo12),
+       PM8607_REGULATOR_DRIVER(ldo14),
+};
+
+static int __init pm8607_regulator_init(void)
+{
+       int i, count, ret;
+
+       count = ARRAY_SIZE(pm8607_regulator_driver);
+       for (i = 0; i < count; i++) {
+               ret = platform_driver_register(&pm8607_regulator_driver[i]);
+               if (ret != 0)
+                       pr_err("Failed to register regulator driver: %d\n",
+                               ret);
+       }
+       return 0;
+}
+subsys_initcall(pm8607_regulator_init);
+
+static void __exit pm8607_regulator_exit(void)
+{
+       int i, count;
+
+       count = ARRAY_SIZE(pm8607_regulator_driver);
+       for (i = 0; i < count; i++)
+               platform_driver_unregister(&pm8607_regulator_driver[i]);
+}
+module_exit(pm8607_regulator_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
+MODULE_DESCRIPTION("Regulator Driver for Marvell 88PM8607 PMIC");
+MODULE_ALIAS("platform:88pm8607-regulator");
index 9e0aa14..262f62e 100644 (file)
@@ -164,5 +164,11 @@ config REGULATOR_TPS6507X
          three step-down converters and two general-purpose LDO voltage regulators.
          It supports TI's software based Class-2 SmartReflex implementation.
 
+config REGULATOR_88PM8607
+       bool "Marvell 88PM8607 Power regulators"
+       depends on MFD_88PM8607=y
+       help
+         This driver supports 88PM8607 voltage regulator chips.
+
 endif
 
index 12285e4..499ed07 100644 (file)
@@ -26,5 +26,6 @@ obj-$(CONFIG_REGULATOR_AB3100) += ab3100.o
 
 obj-$(CONFIG_REGULATOR_TPS65023) += tps65023-regulator.o
 obj-$(CONFIG_REGULATOR_TPS6507X) += tps6507x-regulator.o
+obj-$(CONFIG_REGULATOR_88PM8607) += 88pm8607.o
 
 ccflags-$(CONFIG_REGULATOR_DEBUG) += -DDEBUG