drivers/mfd/rt5036-core.c

   1 /*
   2  *  drivers/mfd/rt5036-core.c
   3  *  Driver for Richtek RT5036 Core PMIC
   4  *
   5  *  Copyright (C) 2014 Richtek Technology Corp.
   6  *  cy_huang <cy_huang@richtek.com>
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License version 2 as
  10  * published by the Free Software Foundation; either version 2
  11  * of the License, or (at your option) any later version.
  12  */
  13
  14 #include <linux/module.h>
  15 #include <linux/kernel.h>
  16 #include <linux/version.h>
  17 #include <linux/mfd/core.h>
  18
  19 #include <linux/mfd/rt5036/rt5036.h>
  20
  21 #ifdef CONFIG_REGULATOR_RT5036
  22 #ifdef CONFIG_OF
  23 #define RT5036_BUCKVR_DEVS(_id, _idx)                           \
  24 {                                                               \
  25         .name           = RT5036_DEV_NAME "-regulator",         \
  26         .num_resources  = 0,                                    \
  27         .of_compatible  = "rt," RT5036_DEV_NAME "-dcdc" #_idx, \
  28         .id             = RT5036_ID_##_id,                      \
  29 }
  30
  31 #define RT5036_LDOVR_DEVS(_id, _idx)                            \
  32 {                                                               \
  33         .name           = RT5036_DEV_NAME "-regulator",         \
  34         .num_resources  = 0,                                    \
  35         .of_compatible  = "rt," RT5036_DEV_NAME "-ldo" #_idx,   \
  36         .id             = RT5036_ID_##_id,                      \
  37 }
  38
  39 #define RT5036_LSWVR_DEVS(_id, _idx)                            \
  40 {                                                               \
  41         .name = RT5036_DEV_NAME "-regulator",                   \
  42         .num_resources = 0,                                     \
  43         .of_compatible  = "rt," RT5036_DEV_NAME "-lsw" #_idx,   \
  44         .id             = RT5036_ID_##_id,                      \
  45 }
  46 #else
  47 #define RT5036_BUCKVR_DEVS(_id, _idx)                           \
  48 {                                                               \
  49         .name           = RT5036_DEV_NAME "-regulator",         \
  50         .num_resources  = 0,                                    \
  51         .id             = RT5036_ID_##_id,                      \
  52 }
  53
  54 #define RT5036_LDOVR_DEVS(_id, _idx)                            \
  55 {                                                               \
  56         .name           = RT5036_DEV_NAME "-regulator",         \
  57         .num_resources  = 0,                                    \
  58         .id             = RT5036_ID_##_id,                      \
  59 }
  60
  61 #define RT5036_LSWVR_DEVS(_id, _idx)                            \
  62 {                                                               \
  63         .name = RT5036_DEV_NAME "-regulator",                   \
  64         .num_resources = 0,                                     \
  65         .id             = RT5036_ID_##_id,                      \
  66 }
  67 #endif /* #ifdef CONFIG_OF */
  68
  69 static struct mfd_cell regulator_devs[] = {
  70         RT5036_BUCKVR_DEVS(DCDC1, 1),
  71         RT5036_BUCKVR_DEVS(DCDC2, 2),
  72         RT5036_BUCKVR_DEVS(DCDC3, 3),
  73         RT5036_BUCKVR_DEVS(DCDC4, 4),
  74         RT5036_LDOVR_DEVS(LDO1, 1),
  75         RT5036_LDOVR_DEVS(LDO2, 2),
  76         RT5036_LDOVR_DEVS(LDO3, 3),
  77         RT5036_LDOVR_DEVS(LDO4, 4),
  78         RT5036_LSWVR_DEVS(LSW1, 1),
  79         RT5036_LSWVR_DEVS(LSW2, 2),
  80 };
  81 #endif /* CONFIG_REGULATOR_RT5036 */
  82
  83 #ifdef CONFIG_CHARGER_RT5036
  84 static struct mfd_cell chg_devs[] = {
  85         {
  86          .name = RT5036_DEV_NAME "-charger",
  87          .id = -1,
  88          .num_resources = 0,
  89 #ifdef CONFIG_OF
  90          .of_compatible = "rt," RT5036_DEV_NAME "-charger",
  91 #endif /*#ifdef CONFIG_OF */
  92          },
  93 };
  94 #endif /* CONFIG_CHARGER_RT5036 */
  95
  96 #ifdef CONFIG_RTC_RT5036
  97 static struct mfd_cell rtc_devs[] = {
  98         {
  99          .name = RT5036_DEV_NAME "-rtc",
 100          .id = -1,
 101          .num_resources = 0,
 102 #ifdef CONFIG_OF
 103          .of_compatible = "rt," RT5036_DEV_NAME "-rtc",
 104 #endif /*#ifdef CONFIG_OF */
 105          },
 106 };
 107 #endif /* CONFIG_RTC_RT5036 */
 108
 109 #ifdef CONFIG_MISC_RT5036
 110 static struct mfd_cell misc_devs[] = {
 111         {
 112          .name = RT5036_DEV_NAME "-misc",
 113          .id = -1,
 114          .num_resources = 0,
 115 #ifdef CONFIG_OF
 116          .of_compatible = "rt," RT5036_DEV_NAME "-misc",
 117 #endif /*#ifdef CONFIG_OF */
 118          },
 119 };
 120 #endif /* CONFIG_MISC_RT5036 */
 121
 122 #ifdef CONFIG_IRQ_RT5036
 123 static struct mfd_cell irq_devs[] = {
 124         {
 125          .name = RT5036_DEV_NAME "-irq",
 126          .id = -1,
 127          .num_resources = 0,
 128 #ifdef CONFIG_OF
 129          .of_compatible = "rt," RT5036_DEV_NAME "-irq",
 130 #endif /*#ifdef CONFIG_OF */
 131          },
 132 };
 133 #endif /* CONFIG_IRQ_RT5036 */
 134
 135 #ifdef CONFIG_DEBUG_RT5036
 136 static struct mfd_cell debug_devs[] = {
 137         {
 138          .name = RT5036_DEV_NAME "-debug",
 139          .id = -1,
 140          .num_resources = 0,
 141 #ifdef CONFIG_OF
 142          .of_compatible = "rt," RT5036_DEV_NAME "-debug",
 143 #endif /*#ifdef CONFIG_OF */
 144          },
 145 };
 146 #endif /* CONFIG_DEBUG_RT5036 */
 147
 148 int rt5036_core_init(struct device *dev,
 149                                struct rt5036_platform_data *pdata)
 150 {
 151         int ret = 0;
 152
 153         RTINFO("Start to initialize all device\n");
 154 #ifdef CONFIG_REGULATOR_RT5036
 155         if (dev->of_node || (pdata && pdata->regulator[0])) {
 156                 RTINFO("mfd add regulators dev\n");
 157 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 6, 0))
 158                 ret = mfd_add_devices(dev, 0, &regulator_devs[0],
 159                                       ARRAY_SIZE(regulator_devs),
 160                                       NULL, 0, NULL);
 161 #else
 162                 ret = mfd_add_devices(dev, 0, &regulator_devs[0],
 163                                       ARRAY_SIZE(regulator_devs), NULL, 0);
 164 #endif /* LINUX_VERSION_CODE>=KERNL_VERSION(3,6,0) */
 165                 if (ret < 0) {
 166                         dev_err(dev, "Failed to add regulator subdev\n");
 167                         goto out_dev;
 168                 }
 169         }
 170 #endif /* CONFIG_REGULATOR_RT5036 */
 171
 172 #ifdef CONFIG_CHARGER_RT5036
 173         if (dev->of_node || (pdata && pdata->chg_pdata)) {
 174                 RTINFO("mfd add charger dev\n");
 175 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 6, 0))
 176                 ret = mfd_add_devices(dev, 0, &chg_devs[0],
 177                                       ARRAY_SIZE(chg_devs), NULL, 0, NULL);
 178 #else
 179                 ret = mfd_add_devices(dev, 0, &chg_devs[0],
 180                                       ARRAY_SIZE(chg_devs), NULL, 0);
 181 #endif /* LINUX_VERSION_CODE>=KERNL_VERSION(3,6,0) */
 182                 if (ret < 0) {
 183                         dev_err(dev, "Failed to add charger subdev\n");
 184                         goto out_dev;
 185                 }
 186         }
 187 #endif /* CONFIG_CHARGER_RT5036 */
 188
 189 #ifdef CONFIG_RTC_RT5036
 190         if (dev->of_node || pdata) {
 191                 RTINFO("mfd add rtc dev\n");
 192 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 6, 0))
 193                 ret = mfd_add_devices(dev, 0, &rtc_devs[0],
 194                                       ARRAY_SIZE(rtc_devs), NULL, 0, NULL);
 195 #else
 196                 ret = mfd_add_devices(dev, 0, &rtc_devs[0],
 197                                       ARRAY_SIZE(rtc_devs), NULL, 0);
 198 #endif /* LINUX_VERSION_CODE>=KERNL_VERSION(3,6,0) */
 199                 if (ret < 0) {
 200                         dev_err(dev, "Failed to add rtc subdev\n");
 201                         goto out_dev;
 202                 }
 203         }
 204 #endif /* CONFIG_RTC_RT5036 */
 205
 206 #ifdef CONFIG_MISC_RT5036
 207         if (dev->of_node || (pdata && pdata->misc_pdata)) {
 208                 RTINFO("mfd add misc dev\n");
 209 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 6, 0))
 210                 ret = mfd_add_devices(dev, 0, &misc_devs[0],
 211                                       ARRAY_SIZE(misc_devs), NULL, 0, NULL);
 212 #else
 213                 ret = mfd_add_devices(dev, 0, &misc_devs[0],
 214                                       ARRAY_SIZE(misc_devs), NULL, 0);
 215 #endif /* LINUX_VERSION_CODE>=KERNL_VERSION(3,6,0) */
 216                 if (ret < 0) {
 217                         dev_err(dev, "Failed to add misc subdev\n");
 218                         goto out_dev;
 219                 }
 220         }
 221 #endif /* CONFIG_MISC_RT5036 */
 222
 223 #ifdef CONFIG_IRQ_RT5036
 224         if (dev->of_node || (pdata && pdata->irq_pdata)) {
 225                 RTINFO("mfd add irq dev\n");
 226 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 6, 0))
 227                 ret = mfd_add_devices(dev, 0, &irq_devs[0],
 228                                       ARRAY_SIZE(irq_devs), NULL, 0, NULL);
 229 #else
 230                 ret = mfd_add_devices(dev, 0, &irq_devs[0],
 231                                       ARRAY_SIZE(irq_devs), NULL, 0);
 232 #endif /* LINUX_VERSION_CODE>=KERNL_VERSION(3,6,0) */
 233                 if (ret < 0) {
 234                         dev_err(dev, "Failed to add irq subdev\n");
 235                         goto out_dev;
 236                 }
 237         }
 238 #endif /* CONFIG_IRQ_RT5036 */
 239
 240 #ifdef CONFIG_DEBUG_RT5036
 241         RTINFO("mfd add debug dev\n");
 242 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 6, 0))
 243         ret = mfd_add_devices(dev, 0, &debug_devs[0],
 244                               ARRAY_SIZE(debug_devs), NULL, 0, NULL);
 245 #else
 246         ret = mfd_add_devices(dev, 0, &debug_devs[0],
 247                               ARRAY_SIZE(debug_devs), NULL, 0);
 248 #endif /* LINUX_VERSION_CODE>=KERNL_VERSION(3,6,0) */
 249         if (ret < 0) {
 250                 dev_err(dev, "Failed to add debug subdev\n");
 251                 goto out_dev;
 252         }
 253 #endif /* CONFIG_DEBUG_RT5036 */
 254
 255         RTINFO("Initialize all device successfully\n");
 256         return ret;
 257 out_dev:
 258         mfd_remove_devices(dev);
 259         return ret;
 260 }
 261 EXPORT_SYMBOL(rt5036_core_init);
 262
 263 int rt5036_core_deinit(struct device *dev)
 264 {
 265         mfd_remove_devices(dev);
 266         return 0;
 267 }
 268 EXPORT_SYMBOL(rt5036_core_deinit);