gpio.h 13 KB

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  1. /*
  2. * gpio.h -- GPIO Driver for Wolfson WM8350 PMIC
  3. *
  4. * Copyright 2007 Wolfson Microelectronics PLC
  5. *
  6. * This program is free software; you can redistribute it and/or modify it
  7. * under the terms of the GNU General Public License as published by the
  8. * Free Software Foundation; either version 2 of the License, or (at your
  9. * option) any later version.
  10. *
  11. */
  12. #ifndef __LINUX_MFD_WM8350_GPIO_H_
  13. #define __LINUX_MFD_WM8350_GPIO_H_
  14. #include <linux/platform_device.h>
  15. /*
  16. * GPIO Registers.
  17. */
  18. #define WM8350_GPIO_DEBOUNCE 0x80
  19. #define WM8350_GPIO_PIN_PULL_UP_CONTROL 0x81
  20. #define WM8350_GPIO_PULL_DOWN_CONTROL 0x82
  21. #define WM8350_GPIO_INT_MODE 0x83
  22. #define WM8350_GPIO_CONTROL 0x85
  23. #define WM8350_GPIO_CONFIGURATION_I_O 0x86
  24. #define WM8350_GPIO_PIN_POLARITY_TYPE 0x87
  25. #define WM8350_GPIO_FUNCTION_SELECT_1 0x8C
  26. #define WM8350_GPIO_FUNCTION_SELECT_2 0x8D
  27. #define WM8350_GPIO_FUNCTION_SELECT_3 0x8E
  28. #define WM8350_GPIO_FUNCTION_SELECT_4 0x8F
  29. #define WM8350_GPIO_LEVEL 0xE6
  30. /*
  31. * GPIO Functions
  32. */
  33. #define WM8350_GPIO0_GPIO_IN 0x0
  34. #define WM8350_GPIO0_GPIO_OUT 0x0
  35. #define WM8350_GPIO0_PWR_ON_IN 0x1
  36. #define WM8350_GPIO0_PWR_ON_OUT 0x1
  37. #define WM8350_GPIO0_LDO_EN_IN 0x2
  38. #define WM8350_GPIO0_VRTC_OUT 0x2
  39. #define WM8350_GPIO0_LPWR1_IN 0x3
  40. #define WM8350_GPIO0_POR_B_OUT 0x3
  41. #define WM8350_GPIO1_GPIO_IN 0x0
  42. #define WM8350_GPIO1_GPIO_OUT 0x0
  43. #define WM8350_GPIO1_PWR_ON_IN 0x1
  44. #define WM8350_GPIO1_DO_CONF_OUT 0x1
  45. #define WM8350_GPIO1_LDO_EN_IN 0x2
  46. #define WM8350_GPIO1_RESET_OUT 0x2
  47. #define WM8350_GPIO1_LPWR2_IN 0x3
  48. #define WM8350_GPIO1_MEMRST_OUT 0x3
  49. #define WM8350_GPIO2_GPIO_IN 0x0
  50. #define WM8350_GPIO2_GPIO_OUT 0x0
  51. #define WM8350_GPIO2_PWR_ON_IN 0x1
  52. #define WM8350_GPIO2_PWR_ON_OUT 0x1
  53. #define WM8350_GPIO2_WAKE_UP_IN 0x2
  54. #define WM8350_GPIO2_VRTC_OUT 0x2
  55. #define WM8350_GPIO2_32KHZ_IN 0x3
  56. #define WM8350_GPIO2_32KHZ_OUT 0x3
  57. #define WM8350_GPIO3_GPIO_IN 0x0
  58. #define WM8350_GPIO3_GPIO_OUT 0x0
  59. #define WM8350_GPIO3_PWR_ON_IN 0x1
  60. #define WM8350_GPIO3_P_CLK_OUT 0x1
  61. #define WM8350_GPIO3_LDO_EN_IN 0x2
  62. #define WM8350_GPIO3_VRTC_OUT 0x2
  63. #define WM8350_GPIO3_PWR_OFF_IN 0x3
  64. #define WM8350_GPIO3_32KHZ_OUT 0x3
  65. #define WM8350_GPIO4_GPIO_IN 0x0
  66. #define WM8350_GPIO4_GPIO_OUT 0x0
  67. #define WM8350_GPIO4_MR_IN 0x1
  68. #define WM8350_GPIO4_MEM_RST_OUT 0x1
  69. #define WM8350_GPIO4_FLASH_IN 0x2
  70. #define WM8350_GPIO4_ADA_OUT 0x2
  71. #define WM8350_GPIO4_HIBERNATE_IN 0x3
  72. #define WM8350_GPIO4_FLASH_OUT 0x3
  73. #define WM8350_GPIO4_MICDET_OUT 0x4
  74. #define WM8350_GPIO4_MICSHT_OUT 0x5
  75. #define WM8350_GPIO5_GPIO_IN 0x0
  76. #define WM8350_GPIO5_GPIO_OUT 0x0
  77. #define WM8350_GPIO5_LPWR1_IN 0x1
  78. #define WM8350_GPIO5_P_CLK_OUT 0x1
  79. #define WM8350_GPIO5_ADCLRCLK_IN 0x2
  80. #define WM8350_GPIO5_ADCLRCLK_OUT 0x2
  81. #define WM8350_GPIO5_HIBERNATE_IN 0x3
  82. #define WM8350_GPIO5_32KHZ_OUT 0x3
  83. #define WM8350_GPIO5_MICDET_OUT 0x4
  84. #define WM8350_GPIO5_MICSHT_OUT 0x5
  85. #define WM8350_GPIO5_ADA_OUT 0x6
  86. #define WM8350_GPIO5_OPCLK_OUT 0x7
  87. #define WM8350_GPIO6_GPIO_IN 0x0
  88. #define WM8350_GPIO6_GPIO_OUT 0x0
  89. #define WM8350_GPIO6_LPWR2_IN 0x1
  90. #define WM8350_GPIO6_MEMRST_OUT 0x1
  91. #define WM8350_GPIO6_FLASH_IN 0x2
  92. #define WM8350_GPIO6_ADA_OUT 0x2
  93. #define WM8350_GPIO6_HIBERNATE_IN 0x3
  94. #define WM8350_GPIO6_RTC_OUT 0x3
  95. #define WM8350_GPIO6_MICDET_OUT 0x4
  96. #define WM8350_GPIO6_MICSHT_OUT 0x5
  97. #define WM8350_GPIO6_ADCLRCLKB_OUT 0x6
  98. #define WM8350_GPIO6_SDOUT_OUT 0x7
  99. #define WM8350_GPIO7_GPIO_IN 0x0
  100. #define WM8350_GPIO7_GPIO_OUT 0x0
  101. #define WM8350_GPIO7_LPWR3_IN 0x1
  102. #define WM8350_GPIO7_P_CLK_OUT 0x1
  103. #define WM8350_GPIO7_MASK_IN 0x2
  104. #define WM8350_GPIO7_VCC_FAULT_OUT 0x2
  105. #define WM8350_GPIO7_HIBERNATE_IN 0x3
  106. #define WM8350_GPIO7_BATT_FAULT_OUT 0x3
  107. #define WM8350_GPIO7_MICDET_OUT 0x4
  108. #define WM8350_GPIO7_MICSHT_OUT 0x5
  109. #define WM8350_GPIO7_ADA_OUT 0x6
  110. #define WM8350_GPIO7_CSB_IN 0x7
  111. #define WM8350_GPIO8_GPIO_IN 0x0
  112. #define WM8350_GPIO8_GPIO_OUT 0x0
  113. #define WM8350_GPIO8_MR_IN 0x1
  114. #define WM8350_GPIO8_VCC_FAULT_OUT 0x1
  115. #define WM8350_GPIO8_ADCBCLK_IN 0x2
  116. #define WM8350_GPIO8_ADCBCLK_OUT 0x2
  117. #define WM8350_GPIO8_PWR_OFF_IN 0x3
  118. #define WM8350_GPIO8_BATT_FAULT_OUT 0x3
  119. #define WM8350_GPIO8_ALTSCL_IN 0xf
  120. #define WM8350_GPIO9_GPIO_IN 0x0
  121. #define WM8350_GPIO9_GPIO_OUT 0x0
  122. #define WM8350_GPIO9_HEARTBEAT_IN 0x1
  123. #define WM8350_GPIO9_VCC_FAULT_OUT 0x1
  124. #define WM8350_GPIO9_MASK_IN 0x2
  125. #define WM8350_GPIO9_LINE_GT_BATT_OUT 0x2
  126. #define WM8350_GPIO9_PWR_OFF_IN 0x3
  127. #define WM8350_GPIO9_BATT_FAULT_OUT 0x3
  128. #define WM8350_GPIO9_ALTSDA_OUT 0xf
  129. #define WM8350_GPIO10_GPIO_IN 0x0
  130. #define WM8350_GPIO10_GPIO_OUT 0x0
  131. #define WM8350_GPIO10_ISINKC_OUT 0x1
  132. #define WM8350_GPIO10_PWR_OFF_IN 0x2
  133. #define WM8350_GPIO10_LINE_GT_BATT_OUT 0x2
  134. #define WM8350_GPIO10_CHD_IND_IN 0x3
  135. #define WM8350_GPIO11_GPIO_IN 0x0
  136. #define WM8350_GPIO11_GPIO_OUT 0x0
  137. #define WM8350_GPIO11_ISINKD_OUT 0x1
  138. #define WM8350_GPIO11_WAKEUP_IN 0x2
  139. #define WM8350_GPIO11_LINE_GT_BATT_OUT 0x2
  140. #define WM8350_GPIO11_CHD_IND_IN 0x3
  141. #define WM8350_GPIO12_GPIO_IN 0x0
  142. #define WM8350_GPIO12_GPIO_OUT 0x0
  143. #define WM8350_GPIO12_ISINKE_OUT 0x1
  144. #define WM8350_GPIO12_LINE_GT_BATT_OUT 0x2
  145. #define WM8350_GPIO12_LINE_EN_OUT 0x3
  146. #define WM8350_GPIO12_32KHZ_OUT 0x4
  147. #define WM8350_GPIO_DIR_IN 0
  148. #define WM8350_GPIO_DIR_OUT 1
  149. #define WM8350_GPIO_ACTIVE_LOW 0
  150. #define WM8350_GPIO_ACTIVE_HIGH 1
  151. #define WM8350_GPIO_PULL_NONE 0
  152. #define WM8350_GPIO_PULL_UP 1
  153. #define WM8350_GPIO_PULL_DOWN 2
  154. #define WM8350_GPIO_INVERT_OFF 0
  155. #define WM8350_GPIO_INVERT_ON 1
  156. #define WM8350_GPIO_DEBOUNCE_OFF 0
  157. #define WM8350_GPIO_DEBOUNCE_ON 1
  158. /*
  159. * R30 (0x1E) - GPIO Interrupt Status
  160. */
  161. #define WM8350_GP12_EINT 0x1000
  162. #define WM8350_GP11_EINT 0x0800
  163. #define WM8350_GP10_EINT 0x0400
  164. #define WM8350_GP9_EINT 0x0200
  165. #define WM8350_GP8_EINT 0x0100
  166. #define WM8350_GP7_EINT 0x0080
  167. #define WM8350_GP6_EINT 0x0040
  168. #define WM8350_GP5_EINT 0x0020
  169. #define WM8350_GP4_EINT 0x0010
  170. #define WM8350_GP3_EINT 0x0008
  171. #define WM8350_GP2_EINT 0x0004
  172. #define WM8350_GP1_EINT 0x0002
  173. #define WM8350_GP0_EINT 0x0001
  174. /*
  175. * R128 (0x80) - GPIO Debounce
  176. */
  177. #define WM8350_GP12_DB 0x1000
  178. #define WM8350_GP11_DB 0x0800
  179. #define WM8350_GP10_DB 0x0400
  180. #define WM8350_GP9_DB 0x0200
  181. #define WM8350_GP8_DB 0x0100
  182. #define WM8350_GP7_DB 0x0080
  183. #define WM8350_GP6_DB 0x0040
  184. #define WM8350_GP5_DB 0x0020
  185. #define WM8350_GP4_DB 0x0010
  186. #define WM8350_GP3_DB 0x0008
  187. #define WM8350_GP2_DB 0x0004
  188. #define WM8350_GP1_DB 0x0002
  189. #define WM8350_GP0_DB 0x0001
  190. /*
  191. * R129 (0x81) - GPIO Pin pull up Control
  192. */
  193. #define WM8350_GP12_PU 0x1000
  194. #define WM8350_GP11_PU 0x0800
  195. #define WM8350_GP10_PU 0x0400
  196. #define WM8350_GP9_PU 0x0200
  197. #define WM8350_GP8_PU 0x0100
  198. #define WM8350_GP7_PU 0x0080
  199. #define WM8350_GP6_PU 0x0040
  200. #define WM8350_GP5_PU 0x0020
  201. #define WM8350_GP4_PU 0x0010
  202. #define WM8350_GP3_PU 0x0008
  203. #define WM8350_GP2_PU 0x0004
  204. #define WM8350_GP1_PU 0x0002
  205. #define WM8350_GP0_PU 0x0001
  206. /*
  207. * R130 (0x82) - GPIO Pull down Control
  208. */
  209. #define WM8350_GP12_PD 0x1000
  210. #define WM8350_GP11_PD 0x0800
  211. #define WM8350_GP10_PD 0x0400
  212. #define WM8350_GP9_PD 0x0200
  213. #define WM8350_GP8_PD 0x0100
  214. #define WM8350_GP7_PD 0x0080
  215. #define WM8350_GP6_PD 0x0040
  216. #define WM8350_GP5_PD 0x0020
  217. #define WM8350_GP4_PD 0x0010
  218. #define WM8350_GP3_PD 0x0008
  219. #define WM8350_GP2_PD 0x0004
  220. #define WM8350_GP1_PD 0x0002
  221. #define WM8350_GP0_PD 0x0001
  222. /*
  223. * R131 (0x83) - GPIO Interrupt Mode
  224. */
  225. #define WM8350_GP12_INTMODE 0x1000
  226. #define WM8350_GP11_INTMODE 0x0800
  227. #define WM8350_GP10_INTMODE 0x0400
  228. #define WM8350_GP9_INTMODE 0x0200
  229. #define WM8350_GP8_INTMODE 0x0100
  230. #define WM8350_GP7_INTMODE 0x0080
  231. #define WM8350_GP6_INTMODE 0x0040
  232. #define WM8350_GP5_INTMODE 0x0020
  233. #define WM8350_GP4_INTMODE 0x0010
  234. #define WM8350_GP3_INTMODE 0x0008
  235. #define WM8350_GP2_INTMODE 0x0004
  236. #define WM8350_GP1_INTMODE 0x0002
  237. #define WM8350_GP0_INTMODE 0x0001
  238. /*
  239. * R133 (0x85) - GPIO Control
  240. */
  241. #define WM8350_GP_DBTIME_MASK 0x00C0
  242. /*
  243. * R134 (0x86) - GPIO Configuration (i/o)
  244. */
  245. #define WM8350_GP12_DIR 0x1000
  246. #define WM8350_GP11_DIR 0x0800
  247. #define WM8350_GP10_DIR 0x0400
  248. #define WM8350_GP9_DIR 0x0200
  249. #define WM8350_GP8_DIR 0x0100
  250. #define WM8350_GP7_DIR 0x0080
  251. #define WM8350_GP6_DIR 0x0040
  252. #define WM8350_GP5_DIR 0x0020
  253. #define WM8350_GP4_DIR 0x0010
  254. #define WM8350_GP3_DIR 0x0008
  255. #define WM8350_GP2_DIR 0x0004
  256. #define WM8350_GP1_DIR 0x0002
  257. #define WM8350_GP0_DIR 0x0001
  258. /*
  259. * R135 (0x87) - GPIO Pin Polarity / Type
  260. */
  261. #define WM8350_GP12_CFG 0x1000
  262. #define WM8350_GP11_CFG 0x0800
  263. #define WM8350_GP10_CFG 0x0400
  264. #define WM8350_GP9_CFG 0x0200
  265. #define WM8350_GP8_CFG 0x0100
  266. #define WM8350_GP7_CFG 0x0080
  267. #define WM8350_GP6_CFG 0x0040
  268. #define WM8350_GP5_CFG 0x0020
  269. #define WM8350_GP4_CFG 0x0010
  270. #define WM8350_GP3_CFG 0x0008
  271. #define WM8350_GP2_CFG 0x0004
  272. #define WM8350_GP1_CFG 0x0002
  273. #define WM8350_GP0_CFG 0x0001
  274. /*
  275. * R140 (0x8C) - GPIO Function Select 1
  276. */
  277. #define WM8350_GP3_FN_MASK 0xF000
  278. #define WM8350_GP2_FN_MASK 0x0F00
  279. #define WM8350_GP1_FN_MASK 0x00F0
  280. #define WM8350_GP0_FN_MASK 0x000F
  281. /*
  282. * R141 (0x8D) - GPIO Function Select 2
  283. */
  284. #define WM8350_GP7_FN_MASK 0xF000
  285. #define WM8350_GP6_FN_MASK 0x0F00
  286. #define WM8350_GP5_FN_MASK 0x00F0
  287. #define WM8350_GP4_FN_MASK 0x000F
  288. /*
  289. * R142 (0x8E) - GPIO Function Select 3
  290. */
  291. #define WM8350_GP11_FN_MASK 0xF000
  292. #define WM8350_GP10_FN_MASK 0x0F00
  293. #define WM8350_GP9_FN_MASK 0x00F0
  294. #define WM8350_GP8_FN_MASK 0x000F
  295. /*
  296. * R143 (0x8F) - GPIO Function Select 4
  297. */
  298. #define WM8350_GP12_FN_MASK 0x000F
  299. /*
  300. * R230 (0xE6) - GPIO Pin Status
  301. */
  302. #define WM8350_GP12_LVL 0x1000
  303. #define WM8350_GP11_LVL 0x0800
  304. #define WM8350_GP10_LVL 0x0400
  305. #define WM8350_GP9_LVL 0x0200
  306. #define WM8350_GP8_LVL 0x0100
  307. #define WM8350_GP7_LVL 0x0080
  308. #define WM8350_GP6_LVL 0x0040
  309. #define WM8350_GP5_LVL 0x0020
  310. #define WM8350_GP4_LVL 0x0010
  311. #define WM8350_GP3_LVL 0x0008
  312. #define WM8350_GP2_LVL 0x0004
  313. #define WM8350_GP1_LVL 0x0002
  314. #define WM8350_GP0_LVL 0x0001
  315. struct wm8350;
  316. int wm8350_gpio_config(struct wm8350 *wm8350, int gpio, int dir, int func,
  317. int pol, int pull, int invert, int debounce);
  318. struct wm8350_gpio {
  319. struct platform_device *pdev;
  320. };
  321. /*
  322. * GPIO Interrupts
  323. */
  324. #define WM8350_IRQ_GPIO(x) (50 + x)
  325. #endif