Kconfig 14 KB

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  1. #
  2. # GPIO infrastructure and drivers
  3. #
  4. config ARCH_WANT_OPTIONAL_GPIOLIB
  5. bool
  6. help
  7. Select this config option from the architecture Kconfig, if
  8. it is possible to use gpiolib on the architecture, but let the
  9. user decide whether to actually build it or not.
  10. Select this instead of ARCH_REQUIRE_GPIOLIB, if your architecture does
  11. not depend on GPIOs being available, but rather let the user
  12. decide whether he needs it or not.
  13. config ARCH_REQUIRE_GPIOLIB
  14. bool
  15. select GPIOLIB
  16. help
  17. Platforms select gpiolib if they use this infrastructure
  18. for all their GPIOs, usually starting with ones integrated
  19. into SOC processors.
  20. Selecting this from the architecture code will cause the gpiolib
  21. code to always get built in.
  22. menuconfig GPIOLIB
  23. bool "GPIO Support"
  24. depends on ARCH_WANT_OPTIONAL_GPIOLIB || ARCH_REQUIRE_GPIOLIB
  25. select GENERIC_GPIO
  26. help
  27. This enables GPIO support through the generic GPIO library.
  28. You only need to enable this, if you also want to enable
  29. one or more of the GPIO drivers below.
  30. If unsure, say N.
  31. if GPIOLIB
  32. config DEBUG_GPIO
  33. bool "Debug GPIO calls"
  34. depends on DEBUG_KERNEL
  35. help
  36. Say Y here to add some extra checks and diagnostics to GPIO calls.
  37. These checks help ensure that GPIOs have been properly initialized
  38. before they are used, and that sleeping calls are not made from
  39. non-sleeping contexts. They can make bitbanged serial protocols
  40. slower. The diagnostics help catch the type of setup errors
  41. that are most common when setting up new platforms or boards.
  42. config GPIO_SYSFS
  43. bool "/sys/class/gpio/... (sysfs interface)"
  44. depends on SYSFS && EXPERIMENTAL
  45. help
  46. Say Y here to add a sysfs interface for GPIOs.
  47. This is mostly useful to work around omissions in a system's
  48. kernel support. Those are common in custom and semicustom
  49. hardware assembled using standard kernels with a minimum of
  50. custom patches. In those cases, userspace code may import
  51. a given GPIO from the kernel, if no kernel driver requested it.
  52. Kernel drivers may also request that a particular GPIO be
  53. exported to userspace; this can be useful when debugging.
  54. config GPIO_GENERIC
  55. tristate
  56. # put drivers in the right section, in alphabetical order
  57. config GPIO_DA9052
  58. tristate "Dialog DA9052 GPIO"
  59. depends on PMIC_DA9052
  60. help
  61. Say yes here to enable the GPIO driver for the DA9052 chip.
  62. config GPIO_MAX730X
  63. tristate
  64. comment "Memory mapped GPIO drivers:"
  65. config GPIO_GENERIC_PLATFORM
  66. tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
  67. select GPIO_GENERIC
  68. help
  69. Say yes here to support basic platform_device memory-mapped GPIO controllers.
  70. config GPIO_IT8761E
  71. tristate "IT8761E GPIO support"
  72. help
  73. Say yes here to support GPIO functionality of IT8761E super I/O chip.
  74. config GPIO_EP93XX
  75. def_bool y
  76. depends on ARCH_EP93XX
  77. select GPIO_GENERIC
  78. config GPIO_MPC5200
  79. def_bool y
  80. depends on PPC_MPC52xx
  81. config GPIO_MPC8XXX
  82. bool "MPC512x/MPC8xxx GPIO support"
  83. depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
  84. FSL_SOC_BOOKE || PPC_86xx
  85. help
  86. Say Y here if you're going to use hardware that connects to the
  87. MPC512x/831x/834x/837x/8572/8610 GPIOs.
  88. config GPIO_MSM_V1
  89. tristate "Qualcomm MSM GPIO v1"
  90. depends on GPIOLIB && ARCH_MSM
  91. help
  92. Say yes here to support the GPIO interface on ARM v6 based
  93. Qualcomm MSM chips. Most of the pins on the MSM can be
  94. selected for GPIO, and are controlled by this driver.
  95. config GPIO_MSM_V2
  96. tristate "Qualcomm MSM GPIO v2"
  97. depends on GPIOLIB && ARCH_MSM
  98. help
  99. Say yes here to support the GPIO interface on ARM v7 based
  100. Qualcomm MSM chips. Most of the pins on the MSM can be
  101. selected for GPIO, and are controlled by this driver.
  102. config GPIO_MXC
  103. def_bool y
  104. depends on ARCH_MXC
  105. select GPIO_GENERIC
  106. select GENERIC_IRQ_CHIP
  107. config GPIO_MXS
  108. def_bool y
  109. depends on ARCH_MXS
  110. select GPIO_GENERIC
  111. select GENERIC_IRQ_CHIP
  112. config GPIO_PL061
  113. bool "PrimeCell PL061 GPIO support"
  114. depends on ARM_AMBA
  115. help
  116. Say yes here to support the PrimeCell PL061 GPIO device
  117. config GPIO_PXA
  118. bool "PXA GPIO support"
  119. depends on ARCH_PXA || ARCH_MMP
  120. help
  121. Say yes here to support the PXA GPIO device
  122. config GPIO_XILINX
  123. bool "Xilinx GPIO support"
  124. depends on PPC_OF || MICROBLAZE
  125. help
  126. Say yes here to support the Xilinx FPGA GPIO device
  127. config GPIO_VR41XX
  128. tristate "NEC VR4100 series General-purpose I/O Uint support"
  129. depends on CPU_VR41XX
  130. help
  131. Say yes here to support the NEC VR4100 series General-purpose I/O Uint
  132. config GPIO_SCH
  133. tristate "Intel SCH/TunnelCreek GPIO"
  134. depends on PCI && X86
  135. select MFD_CORE
  136. select LPC_SCH
  137. help
  138. Say yes here to support GPIO interface on Intel Poulsbo SCH
  139. or Intel Tunnel Creek processor.
  140. The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
  141. powered by the core power rail and are turned off during sleep
  142. modes (S3 and higher). The remaining four GPIOs are powered by
  143. the Intel SCH suspend power supply. These GPIOs remain
  144. active during S3. The suspend powered GPIOs can be used to wake the
  145. system from the Suspend-to-RAM state.
  146. The Intel Tunnel Creek processor has 5 GPIOs powered by the
  147. core power rail and 9 from suspend power supply.
  148. config GPIO_U300
  149. bool "ST-Ericsson U300 COH 901 335/571 GPIO"
  150. depends on GPIOLIB && ARCH_U300
  151. help
  152. Say yes here to support GPIO interface on ST-Ericsson U300.
  153. The names of the two IP block variants supported are
  154. COH 901 335 and COH 901 571/3. They contain 3, 5 or 7
  155. ports of 8 GPIO pins each.
  156. config GPIO_VX855
  157. tristate "VIA VX855/VX875 GPIO"
  158. depends on PCI
  159. select MFD_CORE
  160. select MFD_VX855
  161. help
  162. Support access to the VX855/VX875 GPIO lines through the gpio library.
  163. This driver provides common support for accessing the device,
  164. additional drivers must be enabled in order to use the
  165. functionality of the device.
  166. comment "I2C GPIO expanders:"
  167. config GPIO_MAX7300
  168. tristate "Maxim MAX7300 GPIO expander"
  169. depends on I2C
  170. select GPIO_MAX730X
  171. help
  172. GPIO driver for Maxim MAX7301 I2C-based GPIO expander.
  173. config GPIO_MAX732X
  174. tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
  175. depends on I2C
  176. help
  177. Say yes here to support the MAX7319, MAX7320-7327 series of I2C
  178. Port Expanders. Each IO port on these chips has a fixed role of
  179. Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
  180. Input and Output (designed by 'P'). The combinations are listed
  181. below:
  182. 8 bits: max7319 (8I), max7320 (8O), max7321 (8P),
  183. max7322 (4I4O), max7323 (4P4O)
  184. 16 bits: max7324 (8I8O), max7325 (8P8O),
  185. max7326 (4I12O), max7327 (4P12O)
  186. Board setup code must specify the model to use, and the start
  187. number for these GPIOs.
  188. config GPIO_MAX732X_IRQ
  189. bool "Interrupt controller support for MAX732x"
  190. depends on GPIO_MAX732X=y && GENERIC_HARDIRQS
  191. help
  192. Say yes here to enable the max732x to be used as an interrupt
  193. controller. It requires the driver to be built in the kernel.
  194. config GPIO_PCA953X
  195. tristate "PCA953x, PCA955x, TCA64xx, and MAX7310 I/O ports"
  196. depends on I2C
  197. help
  198. Say yes here to provide access to several register-oriented
  199. SMBus I/O expanders, made mostly by NXP or TI. Compatible
  200. models include:
  201. 4 bits: pca9536, pca9537
  202. 8 bits: max7310, pca9534, pca9538, pca9554, pca9557,
  203. tca6408
  204. 16 bits: pca9535, pca9539, pca9555, tca6416
  205. config GPIO_PCA953X_IRQ
  206. bool "Interrupt controller support for PCA953x"
  207. depends on GPIO_PCA953X=y
  208. help
  209. Say yes here to enable the pca953x to be used as an interrupt
  210. controller. It requires the driver to be built in the kernel.
  211. config GPIO_PCF857X
  212. tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
  213. depends on I2C
  214. help
  215. Say yes here to provide access to most "quasi-bidirectional" I2C
  216. GPIO expanders used for additional digital outputs or inputs.
  217. Most of these parts are from NXP, though TI is a second source for
  218. some of them. Compatible models include:
  219. 8 bits: pcf8574, pcf8574a, pca8574, pca8574a,
  220. pca9670, pca9672, pca9674, pca9674a,
  221. max7328, max7329
  222. 16 bits: pcf8575, pcf8575c, pca8575,
  223. pca9671, pca9673, pca9675
  224. Your board setup code will need to declare the expanders in
  225. use, and assign numbers to the GPIOs they expose. Those GPIOs
  226. can then be used from drivers and other kernel code, just like
  227. other GPIOs, but only accessible from task contexts.
  228. This driver provides an in-kernel interface to those GPIOs using
  229. platform-neutral GPIO calls.
  230. config GPIO_SX150X
  231. bool "Semtech SX150x I2C GPIO expander"
  232. depends on I2C=y
  233. default n
  234. help
  235. Say yes here to provide support for Semtech SX150-series I2C
  236. GPIO expanders. Compatible models include:
  237. 8 bits: sx1508q
  238. 16 bits: sx1509q
  239. config GPIO_STMPE
  240. bool "STMPE GPIOs"
  241. depends on MFD_STMPE
  242. help
  243. This enables support for the GPIOs found on the STMPE I/O
  244. Expanders.
  245. config GPIO_TC3589X
  246. bool "TC3589X GPIOs"
  247. depends on MFD_TC3589X
  248. help
  249. This enables support for the GPIOs found on the TC3589X
  250. I/O Expander.
  251. config GPIO_TPS65912
  252. tristate "TI TPS65912 GPIO"
  253. depends on (MFD_TPS65912_I2C || MFD_TPS65912_SPI)
  254. help
  255. This driver supports TPS65912 gpio chip
  256. config GPIO_TWL4030
  257. tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
  258. depends on TWL4030_CORE
  259. help
  260. Say yes here to access the GPIO signals of various multi-function
  261. power management chips from Texas Instruments.
  262. config GPIO_WM831X
  263. tristate "WM831x GPIOs"
  264. depends on MFD_WM831X
  265. help
  266. Say yes here to access the GPIO signals of WM831x power management
  267. chips from Wolfson Microelectronics.
  268. config GPIO_WM8350
  269. tristate "WM8350 GPIOs"
  270. depends on MFD_WM8350
  271. help
  272. Say yes here to access the GPIO signals of WM8350 power management
  273. chips from Wolfson Microelectronics.
  274. config GPIO_WM8994
  275. tristate "WM8994 GPIOs"
  276. depends on MFD_WM8994
  277. help
  278. Say yes here to access the GPIO signals of WM8994 audio hub
  279. CODECs from Wolfson Microelectronics.
  280. config GPIO_ADP5520
  281. tristate "GPIO Support for ADP5520 PMIC"
  282. depends on PMIC_ADP5520
  283. help
  284. This option enables support for on-chip GPIO found
  285. on Analog Devices ADP5520 PMICs.
  286. config GPIO_ADP5588
  287. tristate "ADP5588 I2C GPIO expander"
  288. depends on I2C
  289. help
  290. This option enables support for 18 GPIOs found
  291. on Analog Devices ADP5588 GPIO Expanders.
  292. config GPIO_ADP5588_IRQ
  293. bool "Interrupt controller support for ADP5588"
  294. depends on GPIO_ADP5588=y
  295. help
  296. Say yes here to enable the adp5588 to be used as an interrupt
  297. controller. It requires the driver to be built in the kernel.
  298. comment "PCI GPIO expanders:"
  299. config GPIO_CS5535
  300. tristate "AMD CS5535/CS5536 GPIO support"
  301. depends on PCI && X86 && !CS5535_GPIO && MFD_CS5535
  302. help
  303. The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
  304. can be used for quite a number of things. The CS5535/6 is found on
  305. AMD Geode and Lemote Yeeloong devices.
  306. If unsure, say N.
  307. config GPIO_BT8XX
  308. tristate "BT8XX GPIO abuser"
  309. depends on PCI && VIDEO_BT848=n
  310. help
  311. The BT8xx frame grabber chip has 24 GPIO pins than can be abused
  312. as a cheap PCI GPIO card.
  313. This chip can be found on Miro, Hauppauge and STB TV-cards.
  314. The card needs to be physically altered for using it as a
  315. GPIO card. For more information on how to build a GPIO card
  316. from a BT8xx TV card, see the documentation file at
  317. Documentation/bt8xxgpio.txt
  318. If unsure, say N.
  319. config GPIO_LANGWELL
  320. bool "Intel Langwell/Penwell GPIO support"
  321. depends on PCI && X86
  322. help
  323. Say Y here to support Intel Langwell/Penwell GPIO.
  324. config GPIO_PCH
  325. tristate "Intel EG20T PCH / OKI SEMICONDUCTOR ML7223 IOH GPIO"
  326. depends on PCI && X86
  327. select GENERIC_IRQ_CHIP
  328. help
  329. This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
  330. which is an IOH(Input/Output Hub) for x86 embedded processor.
  331. This driver can access PCH GPIO device.
  332. This driver also can be used for OKI SEMICONDUCTOR IOH(Input/
  333. Output Hub), ML7223.
  334. ML7223 IOH is for MP(Media Phone) use.
  335. ML7223 is companion chip for Intel Atom E6xx series.
  336. ML7223 is completely compatible for Intel EG20T PCH.
  337. config GPIO_ML_IOH
  338. tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
  339. depends on PCI
  340. select GENERIC_IRQ_CHIP
  341. help
  342. ML7213 is companion chip for Intel Atom E6xx series.
  343. This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
  344. Hub) which is for IVI(In-Vehicle Infotainment) use.
  345. This driver can access the IOH's GPIO device.
  346. config GPIO_TIMBERDALE
  347. bool "Support for timberdale GPIO IP"
  348. depends on MFD_TIMBERDALE && HAS_IOMEM
  349. ---help---
  350. Add support for the GPIO IP in the timberdale FPGA.
  351. config GPIO_RDC321X
  352. tristate "RDC R-321x GPIO support"
  353. depends on PCI
  354. select MFD_CORE
  355. select MFD_RDC321X
  356. help
  357. Support for the RDC R321x SoC GPIOs over southbridge
  358. PCI configuration space.
  359. comment "SPI GPIO expanders:"
  360. config GPIO_MAX7301
  361. tristate "Maxim MAX7301 GPIO expander"
  362. depends on SPI_MASTER
  363. select GPIO_MAX730X
  364. help
  365. GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
  366. config GPIO_MCP23S08
  367. tristate "Microchip MCP23xxx I/O expander"
  368. depends on SPI_MASTER || I2C
  369. help
  370. SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017
  371. I/O expanders.
  372. This provides a GPIO interface supporting inputs and outputs.
  373. config GPIO_MC33880
  374. tristate "Freescale MC33880 high-side/low-side switch"
  375. depends on SPI_MASTER
  376. help
  377. SPI driver for Freescale MC33880 high-side/low-side switch.
  378. This provides GPIO interface supporting inputs and outputs.
  379. config GPIO_74X164
  380. tristate "74x164 serial-in/parallel-out 8-bits shift register"
  381. depends on SPI_MASTER
  382. help
  383. Platform driver for 74x164 compatible serial-in/parallel-out
  384. 8-outputs shift registers. This driver can be used to provide access
  385. to more gpio outputs.
  386. comment "AC97 GPIO expanders:"
  387. config GPIO_UCB1400
  388. bool "Philips UCB1400 GPIO"
  389. depends on UCB1400_CORE
  390. help
  391. This enables support for the Philips UCB1400 GPIO pins.
  392. The UCB1400 is an AC97 audio codec.
  393. comment "MODULbus GPIO expanders:"
  394. config GPIO_JANZ_TTL
  395. tristate "Janz VMOD-TTL Digital IO Module"
  396. depends on MFD_JANZ_CMODIO
  397. help
  398. This enables support for the Janz VMOD-TTL Digital IO module.
  399. This driver provides support for driving the pins in output
  400. mode only. Input mode is not supported.
  401. config GPIO_AB8500
  402. bool "ST-Ericsson AB8500 Mixed Signal Circuit gpio functions"
  403. depends on AB8500_CORE && BROKEN
  404. help
  405. Select this to enable the AB8500 IC GPIO driver
  406. config GPIO_TPS65910
  407. bool "TPS65910 GPIO"
  408. depends on MFD_TPS65910
  409. help
  410. Select this option to enable GPIO driver for the TPS65910
  411. chip family.
  412. endif