da9063.c 10 KB

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  1. // SPDX-License-Identifier: GPL-2.0+
  2. /*
  3. * Copyright (C) 2018 Flowbird
  4. * Martin Fuzzey <martin.fuzzey@flowbird.group>
  5. */
  6. #include <common.h>
  7. #include <dm.h>
  8. #include <linux/bitops.h>
  9. #include <power/da9063_pmic.h>
  10. #include <power/pmic.h>
  11. #include <power/regulator.h>
  12. #define DA9063_BUCK_EN 0x01
  13. #define DA9063_LDO_EN 0x01
  14. #define DA9063_VBUCK_MASK 0x7F
  15. #define DA9063_BUCK_SL 0x80
  16. #define DA9063_LDO_SL 0x80
  17. #define DA9063_VLDO1_MASK 0x3F
  18. #define DA9063_VLDO2_MASK 0x3F
  19. #define DA9063_VLDO3_MASK 0x7F
  20. #define DA9063_VLDO4_MASK 0x7F
  21. #define DA9063_VLDO5_MASK 0x3F
  22. #define DA9063_VLDO6_MASK 0x3F
  23. #define DA9063_VLDO7_MASK 0x3F
  24. #define DA9063_VLDO8_MASK 0x3F
  25. #define DA9063_VLDO9_MASK 0x3F
  26. #define DA9063_VLDO10_MASK 0x3F
  27. #define DA9063_VLDO11_MASK 0x3F
  28. #define DA9063_BUCK_MODE_MASK 0xC0
  29. #define DA9063_BUCK_MODE_MANUAL 0x00
  30. #define DA9063_BUCK_MODE_SLEEP 0x40
  31. #define DA9063_BUCK_MODE_SYNC 0x80
  32. #define DA9063_BUCK_MODE_AUTO 0xC0
  33. #define DA9063_BIO_ILIM_MASK 0x0F
  34. #define DA9063_BMEM_ILIM_MASK 0xF0
  35. #define DA9063_BPRO_ILIM_MASK 0x0F
  36. #define DA9063_BPERI_ILIM_MASK 0xF0
  37. #define DA9063_BCORE1_ILIM_MASK 0x0F
  38. #define DA9063_BCORE2_ILIM_MASK 0xF0
  39. struct da9063_reg_info {
  40. uint min_uV;
  41. uint step_uV;
  42. uint max_uV;
  43. uint min_uA;
  44. uint step_uA;
  45. uint max_uA;
  46. uint en_reg;
  47. uint vsel_reg;
  48. uint mode_reg;
  49. uint ilim_reg;
  50. u8 en_mask;
  51. u8 vsel_mask;
  52. u8 ilim_mask;
  53. const char *dt_node_name;
  54. const int *current_limits;
  55. };
  56. struct da9063_priv {
  57. const struct da9063_reg_info *reg_info;
  58. };
  59. static struct dm_regulator_mode da9063_ldo_modes[] = {
  60. { .id = DA9063_LDOMODE_SLEEP,
  61. .register_value = DA9063_LDO_SL, .name = "SLEEP" },
  62. { .id = DA9063_LDOMODE_NORMAL,
  63. .register_value = 0, .name = "NORMAL" },
  64. };
  65. #define DA9063_LDO(regl_name, min_mV, step_mV, max_mV) \
  66. .min_uV = (min_mV) * 1000, \
  67. .step_uV = (step_mV) * 1000, \
  68. .max_uV = (max_mV) * 1000, \
  69. .en_reg = DA9063_REG_##regl_name##_CONT, \
  70. .en_mask = DA9063_LDO_EN, \
  71. .vsel_reg = DA9063_REG_V##regl_name##_A, \
  72. .vsel_mask = DA9063_V##regl_name##_MASK, \
  73. .mode_reg = DA9063_REG_V##regl_name##_A \
  74. /* This array is directly indexed so must stay in numerical order */
  75. static const struct da9063_reg_info da9063_ldo_info[] = {
  76. { DA9063_LDO(LDO1, 600, 20, 1860) },
  77. { DA9063_LDO(LDO2, 600, 20, 1860) },
  78. { DA9063_LDO(LDO3, 900, 20, 3440) },
  79. { DA9063_LDO(LDO4, 900, 20, 3440) },
  80. { DA9063_LDO(LDO5, 900, 50, 3600) },
  81. { DA9063_LDO(LDO6, 900, 50, 3600) },
  82. { DA9063_LDO(LDO7, 900, 50, 3600) },
  83. { DA9063_LDO(LDO8, 900, 50, 3600) },
  84. { DA9063_LDO(LDO9, 950, 50, 3600) },
  85. { DA9063_LDO(LDO10, 900, 50, 3600) },
  86. { DA9063_LDO(LDO11, 900, 50, 3600) },
  87. };
  88. static struct dm_regulator_mode da9063_buck_modes[] = {
  89. { .id = DA9063_BUCKMODE_SLEEP,
  90. .register_value = DA9063_BUCK_MODE_SLEEP, .name = "SLEEP" },
  91. { .id = DA9063_BUCKMODE_SYNC,
  92. .register_value = DA9063_BUCK_MODE_SYNC, .name = "SYNC" },
  93. { .id = DA9063_BUCKMODE_AUTO,
  94. .register_value = DA9063_BUCK_MODE_AUTO, .name = "AUTO" },
  95. };
  96. #define DA9063_BUCK(regl_name, dt_name, \
  97. min_mV, step_mV, max_mV, \
  98. min_mA, step_mA, max_mA, _ilim_reg) \
  99. .dt_node_name = dt_name, \
  100. .min_uV = (min_mV) * 1000, \
  101. .step_uV = (step_mV) * 1000, \
  102. .max_uV = (max_mV) * 1000, \
  103. .min_uA = (min_mA) * 1000, \
  104. .step_uA = (step_mA) * 1000, \
  105. .max_uA = (max_mA) * 1000, \
  106. .en_reg = DA9063_REG_##regl_name##_CONT, \
  107. .en_mask = DA9063_BUCK_EN, \
  108. .vsel_reg = DA9063_REG_V##regl_name##_A, \
  109. .vsel_mask = DA9063_VBUCK_MASK, \
  110. .mode_reg = DA9063_REG_##regl_name##_CFG, \
  111. .ilim_reg = DA9063_REG_BUCK_ILIM_##_ilim_reg, \
  112. .ilim_mask = DA9063_##regl_name##_ILIM_MASK
  113. static const struct da9063_reg_info da9063_buck_info[] = {
  114. /* mV mA */
  115. { DA9063_BUCK(BCORE1, "bcore1", 300, 10, 1570, 500, 100, 2000, C) },
  116. { DA9063_BUCK(BCORE2, "bcore2", 300, 10, 1570, 500, 100, 2000, C) },
  117. { DA9063_BUCK(BPRO, "bpro", 530, 10, 1800, 500, 100, 2000, B) },
  118. { DA9063_BUCK(BMEM, "bmem", 800, 20, 3340, 1500, 100, 3000, A) },
  119. { DA9063_BUCK(BIO, "bio", 800, 20, 3340, 1500, 100, 3000, A) },
  120. { DA9063_BUCK(BPERI, "bperi", 800, 20, 3340, 1500, 100, 3000, B) },
  121. };
  122. static int da9063_get_enable(struct udevice *dev)
  123. {
  124. const struct da9063_priv *priv = dev->priv;
  125. const struct da9063_reg_info *info = priv->reg_info;
  126. int ret;
  127. ret = pmic_reg_read(dev->parent, info->en_reg);
  128. if (ret < 0)
  129. return ret;
  130. return ret & info->en_mask ? true : false;
  131. }
  132. static int da9063_set_enable(struct udevice *dev, bool enable)
  133. {
  134. const struct da9063_priv *priv = dev->priv;
  135. const struct da9063_reg_info *info = priv->reg_info;
  136. return pmic_clrsetbits(dev->parent, info->en_reg,
  137. info->en_mask, enable ? info->en_mask : 0);
  138. }
  139. static int da9063_get_voltage(struct udevice *dev)
  140. {
  141. const struct da9063_priv *priv = dev->priv;
  142. const struct da9063_reg_info *info = priv->reg_info;
  143. int ret;
  144. ret = pmic_reg_read(dev->parent, info->vsel_reg);
  145. if (ret < 0)
  146. return ret;
  147. return info->min_uV + (ret & info->vsel_mask) * info->step_uV;
  148. }
  149. static int da9063_set_voltage(struct udevice *dev, int uV)
  150. {
  151. const struct da9063_priv *priv = dev->priv;
  152. const struct da9063_reg_info *info = priv->reg_info;
  153. uint sel;
  154. if (uV < info->min_uV || uV > info->max_uV)
  155. return -EINVAL;
  156. sel = (uV - info->min_uV) / info->step_uV;
  157. return pmic_clrsetbits(dev->parent, info->vsel_reg,
  158. info->vsel_mask, sel);
  159. }
  160. static const struct dm_regulator_mode
  161. *da9063_find_mode_by_id(int id,
  162. const struct dm_regulator_mode *modes,
  163. uint mode_count)
  164. {
  165. for (; mode_count; mode_count--) {
  166. if (modes->id == id)
  167. return modes;
  168. modes++;
  169. }
  170. return NULL;
  171. }
  172. static int ldo_get_mode(struct udevice *dev)
  173. {
  174. const struct da9063_priv *priv = dev->priv;
  175. const struct da9063_reg_info *info = priv->reg_info;
  176. int val;
  177. val = pmic_reg_read(dev->parent, info->mode_reg);
  178. if (val < 0)
  179. return val;
  180. if (val & DA9063_LDO_SL)
  181. return DA9063_LDOMODE_SLEEP;
  182. else
  183. return DA9063_LDOMODE_NORMAL;
  184. }
  185. static int ldo_set_mode(struct udevice *dev, int mode_id)
  186. {
  187. const struct da9063_priv *priv = dev->priv;
  188. const struct da9063_reg_info *info = priv->reg_info;
  189. const struct dm_regulator_mode *mode;
  190. mode = da9063_find_mode_by_id(mode_id,
  191. da9063_ldo_modes,
  192. ARRAY_SIZE(da9063_ldo_modes));
  193. if (!mode)
  194. return -EINVAL;
  195. return pmic_clrsetbits(dev->parent, info->mode_reg,
  196. DA9063_LDO_SL, mode->register_value);
  197. }
  198. static int buck_get_mode(struct udevice *dev)
  199. {
  200. const struct da9063_priv *priv = dev->priv;
  201. const struct da9063_reg_info *info = priv->reg_info;
  202. int i;
  203. int val;
  204. val = pmic_reg_read(dev->parent, info->mode_reg);
  205. if (val < 0)
  206. return val;
  207. val &= DA9063_BUCK_MODE_MASK;
  208. if (val == DA9063_BUCK_MODE_MANUAL) {
  209. val = pmic_reg_read(dev->parent, info->vsel_reg);
  210. if (val < 0)
  211. return val;
  212. if (val & DA9063_BUCK_SL)
  213. return DA9063_BUCKMODE_SLEEP;
  214. else
  215. return DA9063_BUCKMODE_SYNC;
  216. }
  217. for (i = 0; i < ARRAY_SIZE(da9063_buck_modes); i++) {
  218. if (da9063_buck_modes[i].register_value == val)
  219. return da9063_buck_modes[i].id;
  220. }
  221. return -EINVAL;
  222. }
  223. static int buck_set_mode(struct udevice *dev, int mode_id)
  224. {
  225. const struct da9063_priv *priv = dev->priv;
  226. const struct da9063_reg_info *info = priv->reg_info;
  227. const struct dm_regulator_mode *mode;
  228. mode = da9063_find_mode_by_id(mode_id,
  229. da9063_buck_modes,
  230. ARRAY_SIZE(da9063_buck_modes));
  231. if (!mode)
  232. return -EINVAL;
  233. return pmic_clrsetbits(dev->parent, info->mode_reg,
  234. DA9063_BUCK_MODE_MASK, mode->register_value);
  235. }
  236. static int buck_get_current_limit(struct udevice *dev)
  237. {
  238. const struct da9063_priv *priv = dev->priv;
  239. const struct da9063_reg_info *info = priv->reg_info;
  240. int val;
  241. val = pmic_reg_read(dev->parent, info->ilim_reg);
  242. if (val < 0)
  243. return val;
  244. val &= info->ilim_mask;
  245. val >>= (ffs(info->ilim_mask) - 1);
  246. return info->min_uA + val * info->step_uA;
  247. }
  248. static int buck_set_current_limit(struct udevice *dev, int uA)
  249. {
  250. const struct da9063_priv *priv = dev->priv;
  251. const struct da9063_reg_info *info = priv->reg_info;
  252. int val;
  253. if (uA < info->min_uA || uA > info->max_uA)
  254. return -EINVAL;
  255. val = (uA - info->min_uA) / info->step_uA;
  256. val <<= (ffs(info->ilim_mask) - 1);
  257. return pmic_clrsetbits(dev->parent, info->ilim_reg,
  258. info->ilim_mask, val);
  259. }
  260. static int da9063_ldo_probe(struct udevice *dev)
  261. {
  262. struct dm_regulator_uclass_platdata *uc_pdata;
  263. struct da9063_priv *priv = dev->priv;
  264. /* LDOs are named numerically in DT so can directly index */
  265. if (dev->driver_data < 1 ||
  266. dev->driver_data > ARRAY_SIZE(da9063_ldo_info))
  267. return -EINVAL;
  268. priv->reg_info = &da9063_ldo_info[dev->driver_data - 1];
  269. uc_pdata = dev_get_uclass_platdata(dev);
  270. uc_pdata->type = REGULATOR_TYPE_LDO;
  271. uc_pdata->mode = da9063_ldo_modes;
  272. uc_pdata->mode_count = ARRAY_SIZE(da9063_ldo_modes);
  273. return 0;
  274. }
  275. static int da9063_buck_probe(struct udevice *dev)
  276. {
  277. struct dm_regulator_uclass_platdata *uc_pdata;
  278. struct da9063_priv *priv = dev->priv;
  279. int i;
  280. /* Bucks have names rather than numbers so need to match with DT */
  281. for (i = 0; i < ARRAY_SIZE(da9063_buck_info); i++) {
  282. const struct da9063_reg_info *info = &da9063_buck_info[i];
  283. if (!strcmp(info->dt_node_name, dev->name)) {
  284. priv->reg_info = info;
  285. break;
  286. }
  287. }
  288. if (!priv->reg_info)
  289. return -ENODEV;
  290. uc_pdata = dev_get_uclass_platdata(dev);
  291. uc_pdata->type = REGULATOR_TYPE_BUCK;
  292. uc_pdata->mode = da9063_buck_modes;
  293. uc_pdata->mode_count = ARRAY_SIZE(da9063_buck_modes);
  294. return 0;
  295. }
  296. static const struct dm_regulator_ops da9063_ldo_ops = {
  297. .get_value = da9063_get_voltage,
  298. .set_value = da9063_set_voltage,
  299. .get_enable = da9063_get_enable,
  300. .set_enable = da9063_set_enable,
  301. .get_mode = ldo_get_mode,
  302. .set_mode = ldo_set_mode,
  303. };
  304. U_BOOT_DRIVER(da9063_ldo) = {
  305. .name = DA9063_LDO_DRIVER,
  306. .id = UCLASS_REGULATOR,
  307. .ops = &da9063_ldo_ops,
  308. .probe = da9063_ldo_probe,
  309. .priv_auto_alloc_size = sizeof(struct da9063_priv),
  310. };
  311. static const struct dm_regulator_ops da9063_buck_ops = {
  312. .get_value = da9063_get_voltage,
  313. .set_value = da9063_set_voltage,
  314. .get_enable = da9063_get_enable,
  315. .set_enable = da9063_set_enable,
  316. .get_mode = buck_get_mode,
  317. .set_mode = buck_set_mode,
  318. .get_current = buck_get_current_limit,
  319. .set_current = buck_set_current_limit,
  320. };
  321. U_BOOT_DRIVER(da9063_buck) = {
  322. .name = DA9063_BUCK_DRIVER,
  323. .id = UCLASS_REGULATOR,
  324. .ops = &da9063_buck_ops,
  325. .probe = da9063_buck_probe,
  326. .priv_auto_alloc_size = sizeof(struct da9063_priv),
  327. };