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1#
2# GPIO infrastructure and drivers
3#
4
5config ARCH_WANT_OPTIONAL_GPIOLIB
6 bool
7 help
8 Select this config option from the architecture Kconfig, if
9 it is possible to use gpiolib on the architecture, but let the
10 user decide whether to actually build it or not.
11 Select this instead of ARCH_REQUIRE_GPIOLIB, if your architecture does
12 not depend on GPIOs being available, but rather let the user
13 decide whether he needs it or not.
14
15config ARCH_REQUIRE_GPIOLIB
16 bool
17 select GPIOLIB
18 help
19 Platforms select gpiolib if they use this infrastructure
20 for all their GPIOs, usually starting with ones integrated
21 into SOC processors.
22 Selecting this from the architecture code will cause the gpiolib
23 code to always get built in.
24
25
26
27menuconfig GPIOLIB
28 bool "GPIO Support"
29 depends on ARCH_WANT_OPTIONAL_GPIOLIB || ARCH_REQUIRE_GPIOLIB
30 select GENERIC_GPIO
31 help
32 This enables GPIO support through the generic GPIO library.
33 You only need to enable this, if you also want to enable
34 one or more of the GPIO drivers below.
35
36 If unsure, say N.
37
38if GPIOLIB
39
40config DEBUG_GPIO
41 bool "Debug GPIO calls"
42 depends on DEBUG_KERNEL
43 help
44 Say Y here to add some extra checks and diagnostics to GPIO calls.
45 These checks help ensure that GPIOs have been properly initialized
46 before they are used, and that sleeping calls are not made from
47 non-sleeping contexts. They can make bitbanged serial protocols
48 slower. The diagnostics help catch the type of setup errors
49 that are most common when setting up new platforms or boards.
50
51config GPIO_SYSFS
52 bool "/sys/class/gpio/... (sysfs interface)"
53 depends on SYSFS && EXPERIMENTAL
54 help
55 Say Y here to add a sysfs interface for GPIOs.
56
57 This is mostly useful to work around omissions in a system's
58 kernel support. Those are common in custom and semicustom
59 hardware assembled using standard kernels with a minimum of
60 custom patches. In those cases, userspace code may import
61 a given GPIO from the kernel, if no kernel driver requested it.
62
63 Kernel drivers may also request that a particular GPIO be
64 exported to userspace; this can be useful when debugging.
65
66config GPIO_GENERIC
67 tristate
68
69# put drivers in the right section, in alphabetical order
70
71config GPIO_DA9052
72 tristate "Dialog DA9052 GPIO"
73 depends on PMIC_DA9052
74 help
75 Say yes here to enable the GPIO driver for the DA9052 chip.
76
77config GPIO_MAX730X
78 tristate
79
80comment "Memory mapped GPIO drivers:"
81
82config GPIO_GENERIC_PLATFORM
83 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
84 select GPIO_GENERIC
85 help
86 Say yes here to support basic platform_device memory-mapped GPIO controllers.
87
88config GPIO_IT8761E
89 tristate "IT8761E GPIO support"
90 help
91 Say yes here to support GPIO functionality of IT8761E super I/O chip.
92
93config GPIO_EP93XX
94 def_bool y
95 depends on ARCH_EP93XX
96 select GPIO_GENERIC
97
98config GPIO_EXYNOS4
99 def_bool y
100 depends on CPU_EXYNOS4210
101
102config GPIO_MPC5200
103 def_bool y
104 depends on PPC_MPC52xx
105
106config GPIO_MSM_V1
107 tristate "Qualcomm MSM GPIO v1"
108 depends on GPIOLIB && ARCH_MSM
109 help
110 Say yes here to support the GPIO interface on ARM v6 based
111 Qualcomm MSM chips. Most of the pins on the MSM can be
112 selected for GPIO, and are controlled by this driver.
113
114config GPIO_MSM_V2
115 tristate "Qualcomm MSM GPIO v2"
116 depends on GPIOLIB && ARCH_MSM
117 help
118 Say yes here to support the GPIO interface on ARM v7 based
119 Qualcomm MSM chips. Most of the pins on the MSM can be
120 selected for GPIO, and are controlled by this driver.
121
122config GPIO_MXC
123 def_bool y
124 depends on ARCH_MXC
125 select GPIO_GENERIC
126 select GENERIC_IRQ_CHIP
127
128config GPIO_MXS
129 def_bool y
130 depends on ARCH_MXS
131 select GPIO_GENERIC
132 select GENERIC_IRQ_CHIP
133
134config GPIO_PLAT_SAMSUNG
135 def_bool y
136 depends on SAMSUNG_GPIOLIB_4BIT
137
138config GPIO_S5PC100
139 def_bool y
140 depends on CPU_S5PC100
141
142config GPIO_S5PV210
143 def_bool y
144 depends on CPU_S5PV210
145
146config GPIO_PL061
147 bool "PrimeCell PL061 GPIO support"
148 depends on ARM_AMBA
149 help
150 Say yes here to support the PrimeCell PL061 GPIO device
151
152config GPIO_XILINX
153 bool "Xilinx GPIO support"
154 depends on PPC_OF || MICROBLAZE
155 help
156 Say yes here to support the Xilinx FPGA GPIO device
157
158config GPIO_VR41XX
159 tristate "NEC VR4100 series General-purpose I/O Uint support"
160 depends on CPU_VR41XX
161 help
162 Say yes here to support the NEC VR4100 series General-purpose I/O Uint
163
164config GPIO_SCH
165 tristate "Intel SCH/TunnelCreek GPIO"
166 depends on PCI && X86
167 select MFD_CORE
168 select LPC_SCH
169 help
170 Say yes here to support GPIO interface on Intel Poulsbo SCH
171 or Intel Tunnel Creek processor.
172 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
173 powered by the core power rail and are turned off during sleep
174 modes (S3 and higher). The remaining four GPIOs are powered by
175 the Intel SCH suspend power supply. These GPIOs remain
176 active during S3. The suspend powered GPIOs can be used to wake the
177 system from the Suspend-to-RAM state.
178 The Intel Tunnel Creek processor has 5 GPIOs powered by the
179 core power rail and 9 from suspend power supply.
180
181config GPIO_VX855
182 tristate "VIA VX855/VX875 GPIO"
183 depends on MFD_SUPPORT && PCI
184 select MFD_CORE
185 select MFD_VX855
186 help
187 Support access to the VX855/VX875 GPIO lines through the gpio library.
188
189 This driver provides common support for accessing the device,
190 additional drivers must be enabled in order to use the
191 functionality of the device.
192
193comment "I2C GPIO expanders:"
194
195config GPIO_MAX7300
196 tristate "Maxim MAX7300 GPIO expander"
197 depends on I2C
198 select GPIO_MAX730X
199 help
200 GPIO driver for Maxim MAX7301 I2C-based GPIO expander.
201
202config GPIO_MAX732X
203 tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
204 depends on I2C
205 help
206 Say yes here to support the MAX7319, MAX7320-7327 series of I2C
207 Port Expanders. Each IO port on these chips has a fixed role of
208 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
209 Input and Output (designed by 'P'). The combinations are listed
210 below:
211
212 8 bits: max7319 (8I), max7320 (8O), max7321 (8P),
213 max7322 (4I4O), max7323 (4P4O)
214
215 16 bits: max7324 (8I8O), max7325 (8P8O),
216 max7326 (4I12O), max7327 (4P12O)
217
218 Board setup code must specify the model to use, and the start
219 number for these GPIOs.
220
221config GPIO_MAX732X_IRQ
222 bool "Interrupt controller support for MAX732x"
223 depends on GPIO_MAX732X=y && GENERIC_HARDIRQS
224 help
225 Say yes here to enable the max732x to be used as an interrupt
226 controller. It requires the driver to be built in the kernel.
227
228config GPIO_PCA953X
229 tristate "PCA953x, PCA955x, TCA64xx, and MAX7310 I/O ports"
230 depends on I2C
231 help
232 Say yes here to provide access to several register-oriented
233 SMBus I/O expanders, made mostly by NXP or TI. Compatible
234 models include:
235
236 4 bits: pca9536, pca9537
237
238 8 bits: max7310, pca9534, pca9538, pca9554, pca9557,
239 tca6408
240
241 16 bits: pca9535, pca9539, pca9555, tca6416
242
243config GPIO_PCA953X_IRQ
244 bool "Interrupt controller support for PCA953x"
245 depends on GPIO_PCA953X=y
246 help
247 Say yes here to enable the pca953x to be used as an interrupt
248 controller. It requires the driver to be built in the kernel.
249
250config GPIO_PCF857X
251 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
252 depends on I2C
253 help
254 Say yes here to provide access to most "quasi-bidirectional" I2C
255 GPIO expanders used for additional digital outputs or inputs.
256 Most of these parts are from NXP, though TI is a second source for
257 some of them. Compatible models include:
258
259 8 bits: pcf8574, pcf8574a, pca8574, pca8574a,
260 pca9670, pca9672, pca9674, pca9674a,
261 max7328, max7329
262
263 16 bits: pcf8575, pcf8575c, pca8575,
264 pca9671, pca9673, pca9675
265
266 Your board setup code will need to declare the expanders in
267 use, and assign numbers to the GPIOs they expose. Those GPIOs
268 can then be used from drivers and other kernel code, just like
269 other GPIOs, but only accessible from task contexts.
270
271 This driver provides an in-kernel interface to those GPIOs using
272 platform-neutral GPIO calls.
273
274config GPIO_SX150X
275 bool "Semtech SX150x I2C GPIO expander"
276 depends on I2C=y
277 default n
278 help
279 Say yes here to provide support for Semtech SX150-series I2C
280 GPIO expanders. Compatible models include:
281
282 8 bits: sx1508q
283 16 bits: sx1509q
284
285config GPIO_STMPE
286 bool "STMPE GPIOs"
287 depends on MFD_STMPE
288 help
289 This enables support for the GPIOs found on the STMPE I/O
290 Expanders.
291
292config GPIO_TC3589X
293 bool "TC3589X GPIOs"
294 depends on MFD_TC3589X
295 help
296 This enables support for the GPIOs found on the TC3589X
297 I/O Expander.
298
299config GPIO_TPS65912
300 tristate "TI TPS65912 GPIO"
301 depends on (MFD_TPS65912_I2C || MFD_TPS65912_SPI)
302 help
303 This driver supports TPS65912 gpio chip
304
305config GPIO_TWL4030
306 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
307 depends on TWL4030_CORE
308 help
309 Say yes here to access the GPIO signals of various multi-function
310 power management chips from Texas Instruments.
311
312config GPIO_WM831X
313 tristate "WM831x GPIOs"
314 depends on MFD_WM831X
315 help
316 Say yes here to access the GPIO signals of WM831x power management
317 chips from Wolfson Microelectronics.
318
319config GPIO_WM8350
320 tristate "WM8350 GPIOs"
321 depends on MFD_WM8350
322 help
323 Say yes here to access the GPIO signals of WM8350 power management
324 chips from Wolfson Microelectronics.
325
326config GPIO_WM8994
327 tristate "WM8994 GPIOs"
328 depends on MFD_WM8994
329 help
330 Say yes here to access the GPIO signals of WM8994 audio hub
331 CODECs from Wolfson Microelectronics.
332
333config GPIO_ADP5520
334 tristate "GPIO Support for ADP5520 PMIC"
335 depends on PMIC_ADP5520
336 help
337 This option enables support for on-chip GPIO found
338 on Analog Devices ADP5520 PMICs.
339
340config GPIO_ADP5588
341 tristate "ADP5588 I2C GPIO expander"
342 depends on I2C
343 help
344 This option enables support for 18 GPIOs found
345 on Analog Devices ADP5588 GPIO Expanders.
346
347config GPIO_ADP5588_IRQ
348 bool "Interrupt controller support for ADP5588"
349 depends on GPIO_ADP5588=y
350 help
351 Say yes here to enable the adp5588 to be used as an interrupt
352 controller. It requires the driver to be built in the kernel.
353
354comment "PCI GPIO expanders:"
355
356config GPIO_CS5535
357 tristate "AMD CS5535/CS5536 GPIO support"
358 depends on PCI && X86 && !CS5535_GPIO && MFD_CS5535
359 help
360 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
361 can be used for quite a number of things. The CS5535/6 is found on
362 AMD Geode and Lemote Yeeloong devices.
363
364 If unsure, say N.
365
366config GPIO_BT8XX
367 tristate "BT8XX GPIO abuser"
368 depends on PCI && VIDEO_BT848=n
369 help
370 The BT8xx frame grabber chip has 24 GPIO pins than can be abused
371 as a cheap PCI GPIO card.
372
373 This chip can be found on Miro, Hauppauge and STB TV-cards.
374
375 The card needs to be physically altered for using it as a
376 GPIO card. For more information on how to build a GPIO card
377 from a BT8xx TV card, see the documentation file at
378 Documentation/bt8xxgpio.txt
379
380 If unsure, say N.
381
382config GPIO_LANGWELL
383 bool "Intel Langwell/Penwell GPIO support"
384 depends on PCI && X86
385 help
386 Say Y here to support Intel Langwell/Penwell GPIO.
387
388config GPIO_PCH
389 tristate "Intel EG20T PCH / OKI SEMICONDUCTOR ML7223 IOH GPIO"
390 depends on PCI && X86
391 help
392 This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
393 which is an IOH(Input/Output Hub) for x86 embedded processor.
394 This driver can access PCH GPIO device.
395
396 This driver also can be used for OKI SEMICONDUCTOR IOH(Input/
397 Output Hub), ML7223.
398 ML7223 IOH is for MP(Media Phone) use.
399 ML7223 is companion chip for Intel Atom E6xx series.
400 ML7223 is completely compatible for Intel EG20T PCH.
401
402config GPIO_ML_IOH
403 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
404 depends on PCI
405 help
406 ML7213 is companion chip for Intel Atom E6xx series.
407 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
408 Hub) which is for IVI(In-Vehicle Infotainment) use.
409 This driver can access the IOH's GPIO device.
410
411config GPIO_TIMBERDALE
412 bool "Support for timberdale GPIO IP"
413 depends on MFD_TIMBERDALE && HAS_IOMEM
414 ---help---
415 Add support for the GPIO IP in the timberdale FPGA.
416
417config GPIO_RDC321X
418 tristate "RDC R-321x GPIO support"
419 depends on PCI
420 select MFD_SUPPORT
421 select MFD_CORE
422 select MFD_RDC321X
423 help
424 Support for the RDC R321x SoC GPIOs over southbridge
425 PCI configuration space.
426
427comment "SPI GPIO expanders:"
428
429config GPIO_MAX7301
430 tristate "Maxim MAX7301 GPIO expander"
431 depends on SPI_MASTER
432 select GPIO_MAX730X
433 help
434 GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
435
436config GPIO_MCP23S08
437 tristate "Microchip MCP23xxx I/O expander"
438 depends on SPI_MASTER || I2C
439 help
440 SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017
441 I/O expanders.
442 This provides a GPIO interface supporting inputs and outputs.
443
444config GPIO_MC33880
445 tristate "Freescale MC33880 high-side/low-side switch"
446 depends on SPI_MASTER
447 help
448 SPI driver for Freescale MC33880 high-side/low-side switch.
449 This provides GPIO interface supporting inputs and outputs.
450
451config GPIO_74X164
452 tristate "74x164 serial-in/parallel-out 8-bits shift register"
453 depends on SPI_MASTER
454 help
455 Platform driver for 74x164 compatible serial-in/parallel-out
456 8-outputs shift registers. This driver can be used to provide access
457 to more gpio outputs.
458
459comment "AC97 GPIO expanders:"
460
461config GPIO_UCB1400
462 bool "Philips UCB1400 GPIO"
463 depends on UCB1400_CORE
464 help
465 This enables support for the Philips UCB1400 GPIO pins.
466 The UCB1400 is an AC97 audio codec.
467
468comment "MODULbus GPIO expanders:"
469
470config GPIO_JANZ_TTL
471 tristate "Janz VMOD-TTL Digital IO Module"
472 depends on MFD_JANZ_CMODIO
473 help
474 This enables support for the Janz VMOD-TTL Digital IO module.
475 This driver provides support for driving the pins in output
476 mode only. Input mode is not supported.
477
478config GPIO_AB8500
479 bool "ST-Ericsson AB8500 Mixed Signal Circuit gpio functions"
480 depends on AB8500_CORE && BROKEN
481 help
482 Select this to enable the AB8500 IC GPIO driver
483
484config GPIO_TPS65910
485 bool "TPS65910 GPIO"
486 depends on MFD_TPS65910
487 help
488 Select this option to enable GPIO driver for the TPS65910
489 chip family.
490endif
1# SPDX-License-Identifier: GPL-2.0-only
2#
3# GPIO infrastructure and drivers
4#
5
6menuconfig GPIOLIB
7 bool "GPIO Support"
8 help
9 This enables GPIO support through the generic GPIO library.
10 You only need to enable this if you also want to enable
11 one or more of the GPIO drivers below.
12
13 If unsure, say N.
14
15if GPIOLIB
16
17config GPIOLIB_FASTPATH_LIMIT
18 int "Maximum number of GPIOs for fast path"
19 range 32 512
20 default 512
21 help
22 This adjusts the point at which certain APIs will switch from
23 using a stack allocated buffer to a dynamically allocated buffer.
24
25 You shouldn't need to change this unless you really need to
26 optimize either stack space or performance. Change this carefully
27 since setting an incorrect value could cause stack corruption.
28
29config OF_GPIO
30 def_bool y
31 depends on OF
32 depends on HAS_IOMEM
33
34config GPIO_ACPI
35 def_bool y
36 depends on ACPI
37
38config GPIOLIB_IRQCHIP
39 select IRQ_DOMAIN
40 bool
41
42config OF_GPIO_MM_GPIOCHIP
43 bool
44 help
45 This adds support for the legacy 'struct of_mm_gpio_chip' interface
46 from PowerPC. Existing drivers using this interface need to select
47 this symbol, but new drivers should use the generic gpio-regmap
48 infrastructure instead.
49
50config DEBUG_GPIO
51 bool "Debug GPIO calls"
52 depends on DEBUG_KERNEL
53 help
54 Say Y here to add some extra checks and diagnostics to GPIO calls.
55 These checks help ensure that GPIOs have been properly initialized
56 before they are used, and that sleeping calls are not made from
57 non-sleeping contexts. They can make bitbanged serial protocols
58 slower. The diagnostics help catch the type of setup errors
59 that are most common when setting up new platforms or boards.
60
61config GPIO_SYSFS
62 bool "/sys/class/gpio/... (sysfs interface)" if EXPERT
63 depends on SYSFS
64 select GPIO_CDEV # We need to encourage the new ABI
65 help
66 Say Y here to add the legacy sysfs interface for GPIOs.
67
68 This ABI is deprecated. If you want to use GPIO from userspace,
69 use the character device /dev/gpiochipN with the appropriate
70 ioctl() operations instead.
71
72config GPIO_CDEV
73 bool
74 prompt "Character device (/dev/gpiochipN) support" if EXPERT
75 default y
76 help
77 Say Y here to add the character device /dev/gpiochipN interface
78 for GPIOs. The character device allows userspace to control GPIOs
79 using ioctl() operations.
80
81 Only say N if you are sure that the GPIO character device is not
82 required.
83
84 If unsure, say Y.
85
86config GPIO_CDEV_V1
87 bool "Support GPIO ABI Version 1"
88 default y
89 depends on GPIO_CDEV
90 help
91 Say Y here to support version 1 of the GPIO CDEV ABI.
92
93 This ABI version is deprecated.
94 Please use the latest ABI for new developments.
95
96 If unsure, say Y.
97
98config GPIO_GENERIC
99 depends on HAS_IOMEM # Only for IOMEM drivers
100 tristate
101
102config GPIO_REGMAP
103 select REGMAP
104 tristate
105
106# put drivers in the right section, in alphabetical order
107
108# This symbol is selected by both I2C and SPI expanders
109config GPIO_MAX730X
110 tristate
111
112config GPIO_IDIO_16
113 tristate
114 select REGMAP_IRQ
115 select GPIOLIB_IRQCHIP
116 select GPIO_REGMAP
117 help
118 Enables support for the idio-16 library functions. The idio-16 library
119 provides functions to facilitate communication with devices within the
120 ACCES IDIO-16 family such as the 104-IDIO-16 and the PCI-IDIO-16.
121
122 If built as a module its name will be gpio-idio-16.
123
124menu "Memory mapped GPIO drivers"
125 depends on HAS_IOMEM
126
127config GPIO_74XX_MMIO
128 tristate "GPIO driver for 74xx-ICs with MMIO access"
129 depends on OF_GPIO
130 select GPIO_GENERIC
131 help
132 Say yes here to support GPIO functionality for 74xx-compatible ICs
133 with MMIO access. Compatible models include:
134 1 bit: 741G125 (Input), 741G74 (Output)
135 2 bits: 742G125 (Input), 7474 (Output)
136 4 bits: 74125 (Input), 74175 (Output)
137 6 bits: 74365 (Input), 74174 (Output)
138 8 bits: 74244 (Input), 74273 (Output)
139 16 bits: 741624 (Input), 7416374 (Output)
140
141config GPIO_ALTERA
142 tristate "Altera GPIO"
143 depends on OF_GPIO
144 select GPIOLIB_IRQCHIP
145 select OF_GPIO_MM_GPIOCHIP
146 help
147 Say Y or M here to build support for the Altera PIO device.
148
149 If driver is built as a module it will be called gpio-altera.
150
151config GPIO_AMDPT
152 tristate "AMD Promontory GPIO support"
153 depends on ACPI
154 select GPIO_GENERIC
155 help
156 Driver for GPIO functionality on Promontory IOHub.
157 Requires ACPI ASL code to enumerate as a platform device.
158
159config GPIO_ASPEED
160 tristate "Aspeed GPIO support"
161 depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO
162 select GPIOLIB_IRQCHIP
163 help
164 Say Y here to support Aspeed AST2400 and AST2500 GPIO controllers.
165
166config GPIO_ASPEED_SGPIO
167 bool "Aspeed SGPIO support"
168 depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO
169 select GPIO_GENERIC
170 select GPIOLIB_IRQCHIP
171 help
172 Say Y here to support Aspeed AST2500 SGPIO functionality.
173
174config GPIO_ATH79
175 tristate "Atheros AR71XX/AR724X/AR913X GPIO support"
176 default y if ATH79
177 depends on ATH79 || COMPILE_TEST
178 select GPIO_GENERIC
179 select GPIOLIB_IRQCHIP
180 help
181 Select this option to enable GPIO driver for
182 Atheros AR71XX/AR724X/AR913X SoC devices.
183
184config GPIO_RASPBERRYPI_EXP
185 tristate "Raspberry Pi 3 GPIO Expander"
186 default RASPBERRYPI_FIRMWARE
187 depends on OF_GPIO
188 # Make sure not 'y' when RASPBERRYPI_FIRMWARE is 'm'. This can only
189 # happen when COMPILE_TEST=y, hence the added !RASPBERRYPI_FIRMWARE.
190 depends on (ARCH_BCM2835 && RASPBERRYPI_FIRMWARE) || (COMPILE_TEST && !RASPBERRYPI_FIRMWARE)
191 help
192 Turn on GPIO support for the expander on Raspberry Pi 3 boards, using
193 the firmware mailbox to communicate with VideoCore on BCM283x chips.
194
195config GPIO_BCM_KONA
196 bool "Broadcom Kona GPIO"
197 depends on ARCH_BCM_MOBILE || COMPILE_TEST
198 help
199 Turn on GPIO support for Broadcom "Kona" chips.
200
201config GPIO_BCM_XGS_IPROC
202 tristate "BRCM XGS iProc GPIO support"
203 depends on OF_GPIO && (ARCH_BCM_IPROC || COMPILE_TEST)
204 select GPIO_GENERIC
205 select GPIOLIB_IRQCHIP
206 default ARCH_BCM_IPROC
207 help
208 Say yes here to enable GPIO support for Broadcom XGS iProc SoCs.
209
210config GPIO_BRCMSTB
211 tristate "BRCMSTB GPIO support"
212 default y if (ARCH_BRCMSTB || BMIPS_GENERIC)
213 depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST)
214 select GPIO_GENERIC
215 select IRQ_DOMAIN
216 help
217 Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs.
218
219config GPIO_CADENCE
220 tristate "Cadence GPIO support"
221 depends on OF_GPIO
222 select GPIO_GENERIC
223 select GPIOLIB_IRQCHIP
224 help
225 Say yes here to enable support for Cadence GPIO controller.
226
227config GPIO_CLPS711X
228 tristate "CLPS711X GPIO support"
229 depends on ARCH_CLPS711X || COMPILE_TEST
230 select GPIO_GENERIC
231 help
232 Say yes here to support GPIO on CLPS711X SoCs.
233
234config GPIO_DAVINCI
235 tristate "TI Davinci/Keystone GPIO support"
236 default y if ARCH_DAVINCI
237 depends on (ARM || ARM64) && (ARCH_DAVINCI || ARCH_KEYSTONE || ARCH_K3)
238 help
239 Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
240
241config GPIO_DWAPB
242 tristate "Synopsys DesignWare APB GPIO driver"
243 select GPIO_GENERIC
244 select GPIOLIB_IRQCHIP
245 help
246 Say Y or M here to build support for the Synopsys DesignWare APB
247 GPIO block.
248
249config GPIO_EIC_SPRD
250 tristate "Spreadtrum EIC support"
251 depends on ARCH_SPRD || COMPILE_TEST
252 depends on OF_GPIO
253 select GPIOLIB_IRQCHIP
254 help
255 Say yes here to support Spreadtrum EIC device.
256
257config GPIO_EM
258 tristate "Emma Mobile GPIO"
259 depends on (ARCH_EMEV2 || COMPILE_TEST) && OF_GPIO
260 help
261 Say yes here to support GPIO on Renesas Emma Mobile SoCs.
262
263config GPIO_EN7523
264 tristate "Airoha GPIO support"
265 depends on ARCH_AIROHA
266 default ARCH_AIROHA
267 select GPIO_GENERIC
268 select GPIOLIB_IRQCHIP
269 help
270 Say Y or M here to support the GPIO controller block on the
271 Airoha EN7523 SoC. It supports two banks of 32 GPIOs.
272
273config GPIO_EP93XX
274 def_bool y
275 depends on ARCH_EP93XX
276 select GPIO_GENERIC
277 select GPIOLIB_IRQCHIP
278
279config GPIO_EXAR
280 tristate "Support for GPIO pins on XR17V352/354/358"
281 depends on SERIAL_8250_EXAR
282 select REGMAP_MMIO
283 help
284 Selecting this option will enable handling of GPIO pins present
285 on Exar XR17V352/354/358 chips.
286
287config GPIO_GE_FPGA
288 bool "GE FPGA based GPIO"
289 depends on GE_FPGA || COMPILE_TEST
290 select GPIO_GENERIC
291 help
292 Support for common GPIO functionality provided on some GE Single Board
293 Computers.
294
295 This driver provides basic support (configure as input or output, read
296 and write pin state) for GPIO implemented in a number of GE single
297 board computers.
298
299config GPIO_FTGPIO010
300 bool "Faraday FTGPIO010 GPIO"
301 depends on OF_GPIO
302 select GPIO_GENERIC
303 select GPIOLIB_IRQCHIP
304 default (ARCH_GEMINI || ARCH_MOXART)
305 help
306 Support for common GPIOs from the Faraday FTGPIO010 IP core, found in
307 Cortina systems Gemini platforms, Moxa ART and others.
308
309config GPIO_GENERIC_PLATFORM
310 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
311 select GPIO_GENERIC
312 help
313 Say yes here to support basic platform_device memory-mapped GPIO controllers.
314
315config GPIO_GRGPIO
316 tristate "Aeroflex Gaisler GRGPIO support"
317 depends on OF_GPIO
318 select GPIO_GENERIC
319 select IRQ_DOMAIN
320 help
321 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
322 VHDL IP core library.
323
324config GPIO_HISI
325 tristate "HiSilicon GPIO controller driver"
326 depends on ARM64 || COMPILE_TEST
327 select GPIO_GENERIC
328 select GPIOLIB_IRQCHIP
329 help
330 Say Y or M here to build support for the HiSilicon GPIO controller
331 driver GPIO block.
332 This GPIO controller supports double-edge interrupt and multi-core
333 concurrent access.
334
335config GPIO_HLWD
336 tristate "Nintendo Wii (Hollywood) GPIO"
337 depends on OF_GPIO
338 select GPIO_GENERIC
339 select GPIOLIB_IRQCHIP
340 help
341 Select this to support the GPIO controller of the Nintendo Wii.
342
343 If unsure, say N.
344
345config GPIO_ICH
346 tristate "Intel ICH GPIO"
347 depends on X86
348 depends on LPC_ICH
349 help
350 Say yes here to support the GPIO functionality of a number of Intel
351 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8
352 ICH9, ICH10, Series 5/3400 (e.g. Ibex Peak), Series 6/C200 (e.g.
353 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
354
355 If unsure, say N.
356
357config GPIO_IMX_SCU
358 def_bool y
359 depends on IMX_SCU
360
361config GPIO_IXP4XX
362 bool "Intel IXP4xx GPIO"
363 depends on ARCH_IXP4XX
364 depends on OF
365 select GPIO_GENERIC
366 select GPIOLIB_IRQCHIP
367 select IRQ_DOMAIN_HIERARCHY
368 help
369 Say yes here to support the GPIO functionality of a number of Intel
370 IXP4xx series of chips.
371
372 If unsure, say N.
373
374config GPIO_LOGICVC
375 tristate "Xylon LogiCVC GPIO support"
376 depends on MFD_SYSCON && OF
377 help
378 Say yes here to support GPIO functionality of the Xylon LogiCVC
379 programmable logic block.
380
381config GPIO_LOONGSON
382 bool "Loongson-2/3 GPIO support"
383 depends on CPU_LOONGSON2EF || CPU_LOONGSON64
384 help
385 Driver for GPIO functionality on Loongson-2F/3A/3B processors.
386
387config GPIO_LOONGSON_64BIT
388 tristate "Loongson 64 bit GPIO support"
389 depends on LOONGARCH || COMPILE_TEST
390 depends on OF_GPIO
391 select GPIO_GENERIC
392 help
393 Say yes here to support the GPIO functionality of a number of
394 Loongson series of chips. The Loongson GPIO controller supports
395 up to 60 GPIOS in total, 4 of which are dedicated GPIO pins, and
396 the remaining 56 are reused with other functions, with edge or
397 level triggered interrupts.
398
399config GPIO_LPC18XX
400 tristate "NXP LPC18XX/43XX GPIO support"
401 default y if ARCH_LPC18XX
402 depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
403 select IRQ_DOMAIN_HIERARCHY
404 help
405 Select this option to enable GPIO driver for
406 NXP LPC18XX/43XX devices.
407
408config GPIO_LPC32XX
409 tristate "NXP LPC32XX GPIO support"
410 depends on OF_GPIO && (ARCH_LPC32XX || COMPILE_TEST)
411 help
412 Select this option to enable GPIO driver for
413 NXP LPC32XX devices.
414
415config GPIO_MB86S7X
416 tristate "GPIO support for Fujitsu MB86S7x Platforms"
417 help
418 Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
419
420config GPIO_MENZ127
421 tristate "MEN 16Z127 GPIO support"
422 depends on MCB
423 select GPIO_GENERIC
424 help
425 Say yes here to support the MEN 16Z127 GPIO Controller.
426
427config GPIO_MM_LANTIQ
428 bool "Lantiq Memory mapped GPIOs"
429 depends on LANTIQ && SOC_XWAY
430 select OF_GPIO_MM_GPIOCHIP
431 help
432 This enables support for memory mapped GPIOs on the External Bus Unit
433 (EBU) found on Lantiq SoCs. The GPIOs are output only as they are
434 created by attaching a 16-bit latch to the bus.
435
436config GPIO_MPC5200
437 def_bool y
438 depends on PPC_MPC52xx
439 select OF_GPIO_MM_GPIOCHIP
440
441config GPIO_MPC8XXX
442 bool "MPC512x/MPC8xxx/QorIQ GPIO support"
443 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
444 FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \
445 COMPILE_TEST
446 select GPIO_GENERIC
447 select IRQ_DOMAIN
448 help
449 Say Y here if you're going to use hardware that connects to the
450 MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.
451
452config GPIO_MT7621
453 bool "Mediatek MT7621 GPIO Support"
454 depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST
455 depends on OF_GPIO
456 select GPIO_GENERIC
457 select GPIOLIB_IRQCHIP
458 help
459 Say yes here to support the Mediatek MT7621 SoC GPIO device.
460
461config GPIO_MVEBU
462 def_bool y
463 depends on PLAT_ORION || ARCH_MVEBU
464 depends on OF_GPIO
465 select GENERIC_IRQ_CHIP
466 select REGMAP_MMIO
467
468config GPIO_MXC
469 tristate "i.MX GPIO support"
470 depends on ARCH_MXC || COMPILE_TEST
471 select GPIO_GENERIC
472 select GENERIC_IRQ_CHIP
473
474config GPIO_MXS
475 bool "Freescale MXS GPIO support" if COMPILE_TEST
476 depends on ARCH_MXS || COMPILE_TEST
477 default y if ARCH_MXS
478 select GPIO_GENERIC
479 select GENERIC_IRQ_CHIP
480
481config GPIO_NPCM_SGPIO
482 bool "Nuvoton SGPIO support"
483 depends on ARCH_NPCM || COMPILE_TEST
484 select GPIOLIB_IRQCHIP
485 help
486 Say Y here to support Nuvoton NPCM7XX/NPCM8XX SGPIO functionality.
487
488config GPIO_OCTEON
489 tristate "Cavium OCTEON GPIO"
490 depends on CAVIUM_OCTEON_SOC
491 default y
492 help
493 Say yes here to support the on-chip GPIO lines on the OCTEON
494 family of SOCs.
495
496config GPIO_OMAP
497 tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
498 default y if ARCH_OMAP
499 depends on ARM
500 select GENERIC_IRQ_CHIP
501 select GPIOLIB_IRQCHIP
502 help
503 Say yes here to enable GPIO support for TI OMAP SoCs.
504
505config GPIO_PL061
506 tristate "PrimeCell PL061 GPIO support"
507 depends on ARM_AMBA
508 select IRQ_DOMAIN
509 select GPIOLIB_IRQCHIP
510 help
511 Say yes here to support the PrimeCell PL061 GPIO device.
512
513config GPIO_PXA
514 bool "PXA GPIO support"
515 depends on ARCH_PXA || ARCH_MMP || COMPILE_TEST
516 help
517 Say yes here to support the PXA GPIO device.
518
519config GPIO_RCAR
520 tristate "Renesas R-Car and RZ/G GPIO support"
521 depends on ARCH_RENESAS || COMPILE_TEST
522 select GPIOLIB_IRQCHIP
523 help
524 Say yes here to support GPIO on Renesas R-Car or RZ/G SoCs.
525
526config GPIO_RDA
527 bool "RDA Micro GPIO controller support"
528 depends on ARCH_RDA || COMPILE_TEST
529 depends on OF_GPIO
530 select GPIO_GENERIC
531 select GPIOLIB_IRQCHIP
532 help
533 Say Y here to support RDA Micro GPIO controller.
534
535config GPIO_REALTEK_OTTO
536 tristate "Realtek Otto GPIO support"
537 depends on MACH_REALTEK_RTL
538 default MACH_REALTEK_RTL
539 select GPIO_GENERIC
540 select GPIOLIB_IRQCHIP
541 help
542 The GPIO controller on the Otto MIPS platform supports up to two
543 banks of 32 GPIOs, with edge triggered interrupts. The 32 GPIOs
544 are grouped in four 8-bit wide ports.
545
546 When built as a module, the module will be called realtek_otto_gpio.
547
548config GPIO_REG
549 bool
550 help
551 A 32-bit single register GPIO fixed in/out implementation. This
552 can be used to represent any register as a set of GPIO signals.
553
554config GPIO_ROCKCHIP
555 tristate "Rockchip GPIO support"
556 depends on ARCH_ROCKCHIP || COMPILE_TEST
557 select GENERIC_IRQ_CHIP
558 select GPIOLIB_IRQCHIP
559 default ARCH_ROCKCHIP
560 help
561 Say yes here to support GPIO on Rockchip SoCs.
562
563config GPIO_RTD
564 tristate "Realtek DHC GPIO support"
565 depends on ARCH_REALTEK
566 default y
567 select GPIOLIB_IRQCHIP
568 help
569 This option enables support for GPIOs found on Realtek DHC(Digital
570 Home Center) SoCs family, including RTD1295, RTD1315E, RTD1319,
571 RTD1319D, RTD1395, RTD1619 and RTD1619B.
572
573 Say yes here to support GPIO functionality and GPIO interrupt on
574 Realtek DHC SoCs.
575
576config GPIO_SAMA5D2_PIOBU
577 tristate "SAMA5D2 PIOBU GPIO support"
578 depends on MFD_SYSCON
579 depends on OF_GPIO
580 depends on ARCH_AT91 || COMPILE_TEST
581 select GPIO_SYSCON
582 help
583 Say yes here to use the PIOBU pins as GPIOs.
584
585 PIOBU pins on the SAMA5D2 can be used as GPIOs.
586 The difference from regular GPIOs is that they
587 maintain their value during backup/self-refresh.
588
589config GPIO_SIFIVE
590 tristate "SiFive GPIO support"
591 depends on OF_GPIO
592 select IRQ_DOMAIN_HIERARCHY
593 select GPIO_GENERIC
594 select GPIOLIB_IRQCHIP
595 select REGMAP_MMIO
596 help
597 Say yes here to support the GPIO device on SiFive SoCs.
598
599config GPIO_SIOX
600 tristate "SIOX GPIO support"
601 depends on SIOX
602 select GPIOLIB_IRQCHIP
603 help
604 Say yes here to support SIOX I/O devices. These are units connected
605 via a SIOX bus and have a number of fixed-direction I/O lines.
606
607config GPIO_SNPS_CREG
608 bool "Synopsys GPIO via CREG (Control REGisters) driver"
609 depends on ARC || COMPILE_TEST
610 depends on OF_GPIO
611 help
612 This driver supports GPIOs via CREG on various Synopsys SoCs.
613 This is a single-register MMIO GPIO driver for complex cases
614 where only several fields in register belong to GPIO lines and
615 each GPIO line owns a field with different length and on/off value.
616
617config GPIO_SPEAR_SPICS
618 bool "ST SPEAr13xx SPI Chip Select as GPIO support"
619 depends on PLAT_SPEAR
620 select GENERIC_IRQ_CHIP
621 help
622 Say yes here to support ST SPEAr SPI Chip Select as GPIO device.
623
624config GPIO_SPRD
625 tristate "Spreadtrum GPIO support"
626 depends on ARCH_SPRD || COMPILE_TEST
627 depends on OF_GPIO
628 select GPIOLIB_IRQCHIP
629 help
630 Say yes here to support Spreadtrum GPIO device.
631
632config GPIO_STP_XWAY
633 bool "XWAY STP GPIOs"
634 depends on SOC_XWAY || COMPILE_TEST
635 depends on OF_GPIO
636 help
637 This enables support for the Serial To Parallel (STP) unit found on
638 XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
639 that can be up to 24 bits. This peripheral is aimed at driving LEDs.
640 Some of the GPIOs/LEDs can be auto updated by the SoC with DSL and
641 phy status.
642
643config GPIO_SYSCON
644 tristate "GPIO based on SYSCON"
645 depends on MFD_SYSCON && OF
646 help
647 Say yes here to support GPIO functionality though SYSCON driver.
648
649config GPIO_TANGIER
650 tristate
651 select GPIOLIB_IRQCHIP
652 help
653 GPIO support for Intel Tangier and compatible platforms.
654 Currently supported:
655 - Elkhart Lake
656 - Merrifield
657
658 If built as a module its name will be gpio-tangier.
659
660config GPIO_TB10X
661 bool
662 select GPIO_GENERIC
663 select GENERIC_IRQ_CHIP
664 select OF_GPIO
665
666config GPIO_TEGRA
667 tristate "NVIDIA Tegra GPIO support"
668 default ARCH_TEGRA
669 depends on ARCH_TEGRA || COMPILE_TEST
670 depends on OF_GPIO
671 select GPIOLIB_IRQCHIP
672 select IRQ_DOMAIN_HIERARCHY
673 help
674 Say yes here to support GPIO pins on NVIDIA Tegra SoCs.
675
676config GPIO_TEGRA186
677 tristate "NVIDIA Tegra186 GPIO support"
678 default ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC
679 depends on ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC || COMPILE_TEST
680 depends on OF_GPIO
681 select GPIOLIB_IRQCHIP
682 select IRQ_DOMAIN_HIERARCHY
683 help
684 Say yes here to support GPIO pins on NVIDIA Tegra186 SoCs.
685
686config GPIO_TS4800
687 tristate "TS-4800 DIO blocks and compatibles"
688 depends on OF_GPIO
689 depends on SOC_IMX51 || COMPILE_TEST
690 select GPIO_GENERIC
691 help
692 This driver support TS-4800 FPGA GPIO controllers.
693
694config GPIO_THUNDERX
695 tristate "Cavium ThunderX/OCTEON-TX GPIO"
696 depends on ARCH_THUNDER || (64BIT && COMPILE_TEST)
697 depends on PCI_MSI
698 select GPIOLIB_IRQCHIP
699 select IRQ_DOMAIN_HIERARCHY
700 select IRQ_FASTEOI_HIERARCHY_HANDLERS
701 help
702 Say yes here to support the on-chip GPIO lines on the ThunderX
703 and OCTEON-TX families of SoCs.
704
705config GPIO_UNIPHIER
706 tristate "UniPhier GPIO support"
707 depends on ARCH_UNIPHIER || COMPILE_TEST
708 depends on OF_GPIO
709 select IRQ_DOMAIN_HIERARCHY
710 help
711 Say yes here to support UniPhier GPIOs.
712
713config GPIO_VF610
714 def_bool y
715 depends on ARCH_MXC
716 select GPIOLIB_IRQCHIP
717 help
718 Say yes here to support i.MX or Vybrid vf610 GPIOs.
719
720config GPIO_VISCONTI
721 tristate "Toshiba Visconti GPIO support"
722 depends on ARCH_VISCONTI || COMPILE_TEST
723 depends on OF_GPIO
724 select GPIOLIB_IRQCHIP
725 select GPIO_GENERIC
726 select IRQ_DOMAIN_HIERARCHY
727 help
728 Say yes here to support GPIO on Tohisba Visconti.
729
730config GPIO_WCD934X
731 tristate "Qualcomm Technologies Inc WCD9340/WCD9341 GPIO controller driver"
732 depends on MFD_WCD934X && OF_GPIO
733 help
734 This driver is to support GPIO block found on the Qualcomm Technologies
735 Inc WCD9340/WCD9341 Audio Codec.
736
737config GPIO_XGENE
738 bool "APM X-Gene GPIO controller support"
739 depends on ARM64 && OF_GPIO
740 help
741 This driver is to support the GPIO block within the APM X-Gene SoC
742 platform's generic flash controller. The GPIO pins are muxed with
743 the generic flash controller's address and data pins. Say yes
744 here to enable the GFC GPIO functionality.
745
746config GPIO_XGENE_SB
747 tristate "APM X-Gene GPIO standby controller support"
748 depends on (ARCH_XGENE || COMPILE_TEST)
749 select GPIO_GENERIC
750 select GPIOLIB_IRQCHIP
751 select IRQ_DOMAIN_HIERARCHY
752 help
753 This driver supports the GPIO block within the APM X-Gene
754 Standby Domain. Say yes here to enable the GPIO functionality.
755
756config GPIO_XILINX
757 tristate "Xilinx GPIO support"
758 select GPIOLIB_IRQCHIP
759 depends on OF_GPIO
760 help
761 Say yes here to support the Xilinx FPGA GPIO device.
762
763config GPIO_XLP
764 tristate "Cavium ThunderX2 GPIO support"
765 depends on ARCH_THUNDER2 || COMPILE_TEST
766 select GPIOLIB_IRQCHIP
767 help
768 This driver provides support for GPIO interface on Cavium's ThunderX2
769 CN99XX SoCs (Originally from Netlogic XLP).
770
771 If unsure, say N.
772
773config GPIO_XTENSA
774 bool "Xtensa GPIO32 support"
775 depends on XTENSA
776 depends on HAVE_XTENSA_GPIO32
777 depends on !SMP
778 help
779 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
780 and EXPSTATE (output) ports.
781
782config GPIO_ZEVIO
783 bool "LSI ZEVIO SoC memory mapped GPIOs"
784 depends on ARM
785 help
786 Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
787
788config GPIO_ZYNQ
789 tristate "Xilinx Zynq GPIO support"
790 depends on ARCH_ZYNQ || ARCH_ZYNQMP
791 select GPIOLIB_IRQCHIP
792 help
793 Say yes here to support Xilinx Zynq GPIO controller.
794
795config GPIO_ZYNQMP_MODEPIN
796 tristate "ZynqMP ps-mode pin GPIO configuration driver"
797 depends on ZYNQMP_FIRMWARE
798 default ZYNQMP_FIRMWARE
799 help
800 Say yes here to support the ZynqMP ps-mode pin GPIO configuration
801 driver.
802
803 This ps-mode pin GPIO driver is based on GPIO framework. PS_MODE
804 is 4-bits boot mode pins. It sets and gets the status of
805 the ps-mode pin. Every pin can be configured as input/output.
806
807config GPIO_LOONGSON1
808 tristate "Loongson1 GPIO support"
809 depends on MACH_LOONGSON32
810 select GPIO_GENERIC
811 help
812 Say Y or M here to support GPIO on Loongson1 SoCs.
813
814config GPIO_AMD_FCH
815 tristate "GPIO support for AMD Fusion Controller Hub (G-series SOCs)"
816 help
817 This option enables driver for GPIO on AMD's Fusion Controller Hub,
818 as found on G-series SOCs (e.g. GX-412TC).
819
820 Note: This driver doesn't register itself automatically, as it
821 needs to be provided with platform-specific configuration.
822 (See e.g. CONFIG_PCENGINES_APU2.)
823
824config GPIO_MSC313
825 bool "MStar MSC313 GPIO support"
826 depends on ARCH_MSTARV7
827 default ARCH_MSTARV7
828 select GPIOLIB_IRQCHIP
829 select IRQ_DOMAIN_HIERARCHY
830 help
831 Say Y here to support the main GPIO block on MStar/SigmaStar
832 ARMv7-based SoCs.
833
834config GPIO_IDT3243X
835 tristate "IDT 79RC3243X GPIO support"
836 depends on MIKROTIK_RB532 || COMPILE_TEST
837 select GPIO_GENERIC
838 select GPIOLIB_IRQCHIP
839 help
840 Select this option to enable GPIO driver for
841 IDT 79RC3243X-based devices like Mikrotik RB532.
842
843 To compile this driver as a module, choose M here: the module will
844 be called gpio-idt3243x.
845
846endmenu
847
848menu "Port-mapped I/O GPIO drivers"
849 depends on X86 && HAS_IOPORT # I/O space access
850
851config GPIO_VX855
852 tristate "VIA VX855/VX875 GPIO"
853 depends on PCI
854 select MFD_CORE
855 select MFD_VX855
856 help
857 Support access to the VX855/VX875 GPIO lines through the GPIO library.
858
859 This driver provides common support for accessing the device.
860 Additional drivers must be enabled in order to use the
861 functionality of the device.
862
863config GPIO_I8255
864 tristate
865 select GPIO_REGMAP
866 help
867 Enables support for the i8255 interface library functions. The i8255
868 interface library provides functions to facilitate communication with
869 interfaces compatible with the venerable Intel 8255 Programmable
870 Peripheral Interface (PPI). The Intel 8255 PPI chip was first released
871 in the early 1970s but compatible interfaces are nowadays typically
872 found embedded in larger VLSI processing chips and FPGA components.
873
874 If built as a module its name will be gpio-i8255.
875
876config GPIO_104_DIO_48E
877 tristate "ACCES 104-DIO-48E GPIO support"
878 depends on PC104
879 select ISA_BUS_API
880 select REGMAP_MMIO
881 select REGMAP_IRQ
882 select GPIOLIB_IRQCHIP
883 select GPIO_I8255
884 select I8254
885 help
886 Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E,
887 104-DIO-24E). The base port addresses for the devices may be
888 configured via the base module parameter. The interrupt line numbers
889 for the devices may be configured via the irq module parameter.
890
891config GPIO_104_IDIO_16
892 tristate "ACCES 104-IDIO-16 GPIO support"
893 depends on PC104
894 select ISA_BUS_API
895 select REGMAP_MMIO
896 select GPIO_IDIO_16
897 help
898 Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16,
899 104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The
900 base port addresses for the devices may be configured via the base
901 module parameter. The interrupt line numbers for the devices may be
902 configured via the irq module parameter.
903
904config GPIO_104_IDI_48
905 tristate "ACCES 104-IDI-48 GPIO support"
906 depends on PC104
907 select ISA_BUS_API
908 select REGMAP_MMIO
909 select REGMAP_IRQ
910 select GPIOLIB_IRQCHIP
911 select GPIO_REGMAP
912 help
913 Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A,
914 104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for
915 the devices may be configured via the base module parameter. The
916 interrupt line numbers for the devices may be configured via the irq
917 module parameter.
918
919config GPIO_F7188X
920 tristate "Fintek and Nuvoton Super-I/O GPIO support"
921 help
922 This option enables support for GPIOs found on Fintek Super-I/O
923 chips F71869, F71869A, F71882FG, F71889F and F81866.
924 As well as Nuvoton Super-I/O chip NCT6126D.
925
926 To compile this driver as a module, choose M here: the module will
927 be called f7188x-gpio.
928
929config GPIO_GPIO_MM
930 tristate "Diamond Systems GPIO-MM GPIO support"
931 depends on PC104
932 select ISA_BUS_API
933 select REGMAP_MMIO
934 select GPIO_I8255
935 help
936 Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12.
937
938 The Diamond Systems GPIO-MM device features 48 lines of digital I/O
939 via the emulation of dual 82C55A PPI chips. This driver provides GPIO
940 support for these 48 channels of digital I/O.
941
942 The base port addresses for the devices may be configured via the base
943 array module parameter.
944
945config GPIO_IT87
946 tristate "IT87xx GPIO support"
947 help
948 Say yes here to support GPIO functionality of IT87xx Super I/O chips.
949
950 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
951 supports the IT8761E, IT8613, IT8620E, and IT8628E Super I/O chips as
952 well.
953
954 To compile this driver as a module, choose M here: the module will
955 be called gpio_it87.
956
957config GPIO_SCH
958 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
959 depends on (X86 || COMPILE_TEST) && ACPI
960 depends on LPC_SCH
961 select GPIOLIB_IRQCHIP
962 help
963 Say yes here to support GPIO interface on Intel Poulsbo SCH,
964 Intel Tunnel Creek processor, Intel Centerton processor or
965 Intel Quark X1000 SoC.
966
967 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
968 powered by the core power rail and are turned off during sleep
969 modes (S3 and higher). The remaining four GPIOs are powered by
970 the Intel SCH suspend power supply. These GPIOs remain
971 active during S3. The suspend-powered GPIOs can be used to wake the
972 system from the Suspend-to-RAM state.
973
974 The Intel Tunnel Creek processor has 5 GPIOs powered by the
975 core power rail and 9 from suspend power supply.
976
977 The Intel Centerton processor has a total of 30 GPIO pins.
978 Twenty-one are powered by the core power rail and 9 from the
979 suspend power supply.
980
981 The Intel Quark X1000 SoC has 2 GPIOs powered by the core
982 power well and 6 from the suspend power well.
983
984config GPIO_SCH311X
985 tristate "SMSC SCH311x SuperI/O GPIO"
986 help
987 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
988 SCH3116 "Super I/O" chipsets.
989
990 To compile this driver as a module, choose M here: the module will
991 be called gpio-sch311x.
992
993config GPIO_TS5500
994 tristate "TS-5500 DIO blocks and compatibles"
995 depends on TS5500 || COMPILE_TEST
996 help
997 This driver supports Digital I/O exposed by pin blocks found on some
998 Technologic Systems platforms. It includes, but is not limited to, 3
999 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
1000 LCD port.
1001
1002config GPIO_WINBOND
1003 tristate "Winbond Super I/O GPIO support"
1004 select ISA_BUS_API
1005 help
1006 This option enables support for GPIOs found on Winbond Super I/O
1007 chips.
1008 Currently, only W83627UHG (also known as Nuvoton NCT6627UD) is
1009 supported.
1010
1011 You will need to provide a module parameter "gpios", or a
1012 boot-time parameter "gpio_winbond.gpios" with a bitmask of GPIO
1013 ports to enable (bit 0 is GPIO1, bit 1 is GPIO2, etc.).
1014
1015 To compile this driver as a module, choose M here: the module will
1016 be called gpio-winbond.
1017
1018config GPIO_WS16C48
1019 tristate "WinSystems WS16C48 GPIO support"
1020 select ISA_BUS_API
1021 select REGMAP_IRQ
1022 select REGMAP_MMIO
1023 select GPIOLIB_IRQCHIP
1024 select GPIO_REGMAP
1025 help
1026 Enables GPIO support for the WinSystems WS16C48. The base port
1027 addresses for the devices may be configured via the base module
1028 parameter. The interrupt line numbers for the devices may be
1029 configured via the irq module parameter.
1030
1031endmenu
1032
1033menu "I2C GPIO expanders"
1034 depends on I2C
1035
1036config GPIO_ADNP
1037 tristate "Avionic Design N-bit GPIO expander"
1038 depends on OF_GPIO
1039 select GPIOLIB_IRQCHIP
1040 help
1041 This option enables support for N GPIOs found on Avionic Design
1042 I2C GPIO expanders. The register space will be extended by powers
1043 of two, so the controller will need to accommodate for that. For
1044 example: if a controller provides 48 pins, 6 registers will be
1045 enough to represent all pins, but the driver will assume a
1046 register layout for 64 pins (8 registers).
1047
1048config GPIO_FXL6408
1049 tristate "FXL6408 I2C GPIO expander"
1050 select GPIO_REGMAP
1051 select REGMAP_I2C
1052 help
1053 GPIO driver for Fairchild Semiconductor FXL6408 GPIO expander.
1054
1055 To compile this driver as a module, choose M here: the module will
1056 be called gpio-fxl6408.
1057
1058config GPIO_DS4520
1059 tristate "DS4520 I2C GPIO expander"
1060 select REGMAP_I2C
1061 select GPIO_REGMAP
1062 help
1063 GPIO driver for ADI DS4520 I2C-based GPIO expander.
1064 Say yes here to enable the GPIO driver for the ADI DS4520 chip.
1065
1066 To compile this driver as a module, choose M here: the module will
1067 be called gpio-ds4520.
1068
1069config GPIO_GW_PLD
1070 tristate "Gateworks PLD GPIO Expander"
1071 depends on OF_GPIO
1072 help
1073 Say yes here to provide access to the Gateworks I2C PLD GPIO
1074 Expander. This is used at least on the Cambria GW2358-4.
1075
1076config GPIO_MAX7300
1077 tristate "Maxim MAX7300 GPIO expander"
1078 select GPIO_MAX730X
1079 help
1080 GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
1081
1082config GPIO_MAX732X
1083 tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
1084 help
1085 Say yes here to support the MAX7319, MAX7320-7327 series of I2C
1086 Port Expanders. Each IO port on these chips has a fixed role of
1087 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
1088 Input and Output (designed by 'P'). The combinations are listed
1089 below:
1090
1091 8 bits: max7319 (8I), max7320 (8O), max7321 (8P),
1092 max7322 (4I4O), max7323 (4P4O)
1093
1094 16 bits: max7324 (8I8O), max7325 (8P8O),
1095 max7326 (4I12O), max7327 (4P12O)
1096
1097 Board setup code must specify the model to use, and the start
1098 number for these GPIOs.
1099
1100config GPIO_MAX732X_IRQ
1101 bool "Interrupt controller support for MAX732x"
1102 depends on GPIO_MAX732X=y
1103 select GPIOLIB_IRQCHIP
1104 help
1105 Say yes here to enable the max732x to be used as an interrupt
1106 controller. It requires the driver to be built in the kernel.
1107
1108config GPIO_PCA953X
1109 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
1110 select REGMAP_I2C
1111 help
1112 Say yes here to provide access to several register-oriented
1113 SMBus I/O expanders, made mostly by NXP or TI. Compatible
1114 models include:
1115
1116 4 bits: pca9536, pca9537
1117
1118 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
1119 pca9556, pca9557, pca9574, tca6408, tca9554, xra1202
1120
1121 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
1122 tca6416
1123
1124 24 bits: tca6424
1125
1126 40 bits: pca9505, pca9698
1127
1128config GPIO_PCA953X_IRQ
1129 bool "Interrupt controller support for PCA953x"
1130 depends on GPIO_PCA953X
1131 select GPIOLIB_IRQCHIP
1132 help
1133 Say yes here to enable the pca953x to be used as an interrupt
1134 controller.
1135
1136config GPIO_PCA9570
1137 tristate "PCA9570 4-Bit I2C GPO expander"
1138 help
1139 Say yes here to enable the GPO driver for the NXP PCA9570 chip.
1140
1141 To compile this driver as a module, choose M here: the module will
1142 be called gpio-pca9570.
1143
1144config GPIO_PCF857X
1145 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
1146 select GPIOLIB_IRQCHIP
1147 select IRQ_DOMAIN
1148 help
1149 Say yes here to provide access to most "quasi-bidirectional" I2C
1150 GPIO expanders used for additional digital outputs or inputs.
1151 Most of these parts are from NXP, though TI is a second source for
1152 some of them. Compatible models include:
1153
1154 8 bits: pcf8574, pcf8574a, pca8574, pca8574a,
1155 pca9670, pca9672, pca9674, pca9674a,
1156 max7328, max7329
1157
1158 16 bits: pcf8575, pcf8575c, pca8575,
1159 pca9671, pca9673, pca9675
1160
1161 Your board setup code will need to declare the expanders in
1162 use, and assign numbers to the GPIOs they expose. Those GPIOs
1163 can then be used from drivers and other kernel code, just like
1164 other GPIOs, but only accessible from task contexts.
1165
1166 This driver provides an in-kernel interface to those GPIOs using
1167 platform-neutral GPIO calls.
1168
1169config GPIO_TPIC2810
1170 tristate "TPIC2810 8-Bit I2C GPO expander"
1171 help
1172 Say yes here to enable the GPO driver for the TI TPIC2810 chip.
1173
1174 To compile this driver as a module, choose M here: the module will
1175 be called gpio-tpic2810.
1176
1177config GPIO_TS4900
1178 tristate "Technologic Systems FPGA I2C GPIO"
1179 depends on SOC_IMX6 || COMPILE_TEST
1180 select REGMAP_I2C
1181 help
1182 Say yes here to enabled the GPIO driver for Technologic's FPGA core.
1183 Series supported include TS-4100, TS-4900, TS-7970 and TS-7990.
1184
1185endmenu
1186
1187menu "MFD GPIO expanders"
1188
1189config GPIO_ADP5520
1190 tristate "GPIO Support for ADP5520 PMIC"
1191 depends on PMIC_ADP5520
1192 help
1193 This option enables support for on-chip GPIO found
1194 on Analog Devices ADP5520 PMICs.
1195
1196config GPIO_ALTERA_A10SR
1197 tristate "Altera Arria10 System Resource GPIO"
1198 depends on MFD_ALTERA_A10SR
1199 help
1200 Driver for Arria10 Development Kit GPIO expansion which
1201 includes reads of pushbuttons and DIP switches as well
1202 as writes to LEDs.
1203
1204config GPIO_ARIZONA
1205 tristate "Wolfson Microelectronics Arizona class devices"
1206 depends on MFD_ARIZONA
1207 help
1208 Support for GPIOs on Wolfson Arizona class devices.
1209
1210config GPIO_BD71815
1211 tristate "ROHM BD71815 PMIC GPIO support"
1212 depends on MFD_ROHM_BD71828
1213 help
1214 Support for GPO(s) on ROHM BD71815 PMIC. There are two GPOs
1215 available on the ROHM PMIC.
1216
1217 This driver can also be built as a module. If so, the module
1218 will be called gpio-bd71815.
1219
1220config GPIO_BD71828
1221 tristate "ROHM BD71828 GPIO support"
1222 depends on MFD_ROHM_BD71828
1223 help
1224 Support for GPIOs on ROHM BD71828 PMIC. There are three GPIOs
1225 available on the ROHM PMIC in total. The GPIOs are limited to
1226 outputs only and pins must be configured to GPIO outputs by
1227 OTP. Enable this only if you want to use these pins as outputs.
1228
1229 This driver can also be built as a module. If so, the module
1230 will be called gpio-bd71828.
1231
1232config GPIO_BD9571MWV
1233 tristate "ROHM BD9571 GPIO support"
1234 depends on MFD_BD9571MWV
1235 help
1236 Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs
1237 available on the ROHM PMIC in total, both of which can also
1238 generate interrupts.
1239
1240 This driver can also be built as a module. If so, the module
1241 will be called gpio-bd9571mwv.
1242
1243config GPIO_CRYSTAL_COVE
1244 tristate "GPIO support for Crystal Cove PMIC"
1245 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC
1246 select GPIOLIB_IRQCHIP
1247 help
1248 Support for GPIO pins on Crystal Cove PMIC.
1249
1250 Say Yes if you have a Intel SoC-based tablet with Crystal Cove PMIC
1251 inside.
1252
1253 This driver can also be built as a module. If so, the module will be
1254 called gpio-crystalcove.
1255
1256config GPIO_CS5535
1257 tristate "AMD CS5535/CS5536 GPIO support"
1258 depends on X86 || MIPS || COMPILE_TEST
1259 depends on MFD_CS5535
1260 help
1261 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
1262 can be used for quite a number of things. The CS5535/6 is found on
1263 AMD Geode and Lemote Yeeloong devices.
1264
1265 If unsure, say N.
1266
1267config GPIO_DA9052
1268 tristate "Dialog DA9052 GPIO"
1269 depends on PMIC_DA9052
1270 help
1271 Say yes here to enable the GPIO driver for the DA9052 chip.
1272
1273config GPIO_DA9055
1274 tristate "Dialog Semiconductor DA9055 GPIO"
1275 depends on MFD_DA9055
1276 help
1277 Say yes here to enable the GPIO driver for the DA9055 chip.
1278
1279 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
1280 be controlled by this driver.
1281
1282 If driver is built as a module it will be called gpio-da9055.
1283
1284config GPIO_DLN2
1285 tristate "Diolan DLN2 GPIO support"
1286 depends on MFD_DLN2
1287 select GPIOLIB_IRQCHIP
1288
1289 help
1290 Select this option to enable GPIO driver for the Diolan DLN2
1291 board.
1292
1293 This driver can also be built as a module. If so, the module
1294 will be called gpio-dln2.
1295
1296config HTC_EGPIO
1297 bool "HTC EGPIO support"
1298 depends on ARM
1299 help
1300 This driver supports the CPLD egpio chip present on
1301 several HTC phones. It provides basic support for input
1302 pins, output pins, and IRQs.
1303
1304config GPIO_ELKHARTLAKE
1305 tristate "Intel Elkhart Lake PSE GPIO support"
1306 depends on X86 || COMPILE_TEST
1307 select GPIO_TANGIER
1308 help
1309 Select this option to enable GPIO support for Intel Elkhart Lake
1310 PSE GPIO IP.
1311
1312 To compile this driver as a module, choose M here: the module will
1313 be called gpio-elkhartlake.
1314
1315config GPIO_JANZ_TTL
1316 tristate "Janz VMOD-TTL Digital IO Module"
1317 depends on MFD_JANZ_CMODIO
1318 help
1319 This enables support for the Janz VMOD-TTL Digital IO module.
1320 This driver provides support for driving the pins in output
1321 mode only. Input mode is not supported.
1322
1323config GPIO_KEMPLD
1324 tristate "Kontron ETX / COMexpress GPIO"
1325 depends on MFD_KEMPLD
1326 help
1327 This enables support for the PLD GPIO interface on some Kontron ETX
1328 and COMexpress (ETXexpress) modules.
1329
1330 This driver can also be built as a module. If so, the module will be
1331 called gpio-kempld.
1332
1333config GPIO_LJCA
1334 tristate "INTEL La Jolla Cove Adapter GPIO support"
1335 depends on USB_LJCA
1336 select GPIOLIB_IRQCHIP
1337 default USB_LJCA
1338 help
1339 Select this option to enable GPIO driver for the INTEL
1340 La Jolla Cove Adapter (LJCA) board.
1341
1342 This driver can also be built as a module. If so, the module
1343 will be called gpio-ljca.
1344
1345config GPIO_LP3943
1346 tristate "TI/National Semiconductor LP3943 GPIO expander"
1347 depends on MFD_LP3943
1348 help
1349 GPIO driver for LP3943 MFD.
1350 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
1351 Open drain outputs are required for this usage.
1352
1353config GPIO_LP873X
1354 tristate "TI LP873X GPO"
1355 depends on MFD_TI_LP873X
1356 help
1357 This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present
1358 on LP873X PMICs.
1359
1360 This driver can also be built as a module. If so, the module will be
1361 called gpio-lp873x.
1362
1363config GPIO_LP87565
1364 tristate "TI LP87565 GPIO"
1365 depends on MFD_TI_LP87565
1366 help
1367 This driver supports the GPIO on TI Lp873565 PMICs. 3 GPIOs are present
1368 on LP87565 PMICs.
1369
1370 This driver can also be built as a module. If so, the module will be
1371 called gpio-lp87565.
1372
1373config GPIO_MADERA
1374 tristate "Cirrus Logic Madera class codecs"
1375 depends on PINCTRL_MADERA
1376 help
1377 Support for GPIOs on Cirrus Logic Madera class codecs.
1378
1379config GPIO_MAX77620
1380 tristate "GPIO support for PMIC MAX77620 and MAX20024"
1381 depends on MFD_MAX77620
1382 select GPIOLIB_IRQCHIP
1383 help
1384 GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor.
1385 MAX77620 PMIC has 8 pins that can be configured as GPIOs. The
1386 driver also provides interrupt support for each of the GPIOs.
1387 Say yes here to enable the max77620 to be used as GPIO controller.
1388
1389config GPIO_MAX77650
1390 tristate "Maxim MAX77650/77651 GPIO support"
1391 depends on MFD_MAX77650
1392 help
1393 GPIO driver for MAX77650/77651 PMIC from Maxim Semiconductor.
1394 These chips have a single pin that can be configured as GPIO.
1395
1396config GPIO_PALMAS
1397 bool "TI PALMAS series PMICs GPIO"
1398 depends on MFD_PALMAS
1399 help
1400 Select this option to enable GPIO driver for the TI PALMAS
1401 series chip family.
1402
1403config GPIO_PMIC_EIC_SPRD
1404 tristate "Spreadtrum PMIC EIC support"
1405 depends on MFD_SC27XX_PMIC || COMPILE_TEST
1406 depends on OF_GPIO
1407 select GPIOLIB_IRQCHIP
1408 help
1409 Say yes here to support Spreadtrum PMIC EIC device.
1410
1411config GPIO_RC5T583
1412 bool "RICOH RC5T583 GPIO"
1413 depends on MFD_RC5T583
1414 help
1415 Select this option to enable GPIO driver for the Ricoh RC5T583
1416 chip family.
1417 This driver provides the support for driving/reading the GPIO pins
1418 of RC5T583 device through standard GPIO library.
1419
1420config GPIO_SL28CPLD
1421 tristate "Kontron sl28cpld GPIO support"
1422 depends on MFD_SL28CPLD || COMPILE_TEST
1423 select GPIO_REGMAP
1424 select GPIOLIB_IRQCHIP
1425 select REGMAP_IRQ
1426 help
1427 This enables support for the GPIOs found on the Kontron sl28 CPLD.
1428
1429 This driver can also be built as a module. If so, the module will be
1430 called gpio-sl28cpld.
1431
1432config GPIO_STMPE
1433 bool "STMPE GPIOs"
1434 depends on MFD_STMPE
1435 depends on OF_GPIO
1436 select GPIOLIB_IRQCHIP
1437 help
1438 This enables support for the GPIOs found on the STMPE I/O
1439 Expanders.
1440
1441config GPIO_TC3589X
1442 bool "TC3589X GPIOs"
1443 depends on MFD_TC3589X
1444 depends on OF_GPIO
1445 select GPIOLIB_IRQCHIP
1446 help
1447 This enables support for the GPIOs found on the TC3589X
1448 I/O Expander.
1449
1450config GPIO_TIMBERDALE
1451 bool "Support for timberdale GPIO IP"
1452 depends on MFD_TIMBERDALE
1453 help
1454 Add support for the GPIO IP in the timberdale FPGA.
1455
1456config GPIO_TN48M_CPLD
1457 tristate "Delta Networks TN48M switch CPLD GPIO driver"
1458 depends on MFD_TN48M_CPLD
1459 select GPIO_REGMAP
1460 help
1461 This enables support for the GPIOs found on the Delta
1462 Networks TN48M switch Lattice CPLD. It provides 12 pins in total,
1463 they are input-only or output-only type.
1464
1465 This driver can also be built as a module. If so, the
1466 module will be called gpio-tn48m.
1467
1468config GPIO_TPS65086
1469 tristate "TI TPS65086 GPO"
1470 depends on MFD_TPS65086
1471 help
1472 This driver supports the GPO on TI TPS65086x PMICs.
1473
1474config GPIO_TPS65218
1475 tristate "TPS65218 GPIO"
1476 depends on MFD_TPS65218
1477 help
1478 Select this option to enable GPIO driver for the TPS65218
1479 chip family.
1480
1481config GPIO_TPS65219
1482 tristate "TPS65219 GPIO"
1483 depends on MFD_TPS65219
1484 default MFD_TPS65219
1485 help
1486 Select this option to enable GPIO driver for the TPS65219 chip
1487 family.
1488 GPIO0 is statically configured as either input or output prior to
1489 Linux boot. It is used for MULTI_DEVICE_ENABLE function. This setting
1490 is statically configured by NVM. GPIO0 can't be used as a generic
1491 GPIO. It's either a GPO when MULTI_DEVICE_EN=0 or a GPI when
1492 MULTI_DEVICE_EN=1.
1493
1494 This driver can also be built as a module. If so, the module will be
1495 called gpio_tps65219.
1496
1497config GPIO_TPS6586X
1498 bool "TPS6586X GPIO"
1499 depends on MFD_TPS6586X
1500 help
1501 Select this option to enable GPIO driver for the TPS6586X
1502 chip family.
1503
1504config GPIO_TPS65910
1505 bool "TPS65910 GPIO"
1506 depends on MFD_TPS65910
1507 help
1508 Select this option to enable GPIO driver for the TPS65910
1509 chip family.
1510
1511config GPIO_TPS65912
1512 tristate "TI TPS65912 GPIO"
1513 depends on MFD_TPS65912
1514 help
1515 This driver supports TPS65912 GPIO chip.
1516
1517config GPIO_TPS68470
1518 tristate "TPS68470 GPIO"
1519 depends on INTEL_SKL_INT3472
1520 help
1521 Select this option to enable GPIO driver for the TPS68470
1522 chip family.
1523 There are 7 GPIOs and few sensor-related GPIOs supported
1524 by the TPS68470. While the 7 GPIOs can be configured as
1525 input or output as appropriate, the sensor related GPIOs
1526 are "output only" GPIOs.
1527
1528config GPIO_TQMX86
1529 tristate "TQ-Systems QTMX86 GPIO"
1530 depends on MFD_TQMX86 || COMPILE_TEST
1531 depends on HAS_IOPORT_MAP
1532 select GPIOLIB_IRQCHIP
1533 help
1534 This driver supports GPIO on the TQMX86 IO controller.
1535
1536config GPIO_TWL4030
1537 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
1538 depends on TWL4030_CORE
1539 help
1540 Say yes here to access the GPIO signals of various multi-function
1541 power management chips from Texas Instruments.
1542
1543config GPIO_TWL6040
1544 tristate "TWL6040 GPO"
1545 depends on TWL6040_CORE
1546 help
1547 Say yes here to access the GPO signals of twl6040
1548 audio chip from Texas Instruments.
1549
1550config GPIO_WHISKEY_COVE
1551 tristate "GPIO support for Whiskey Cove PMIC"
1552 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC
1553 select GPIOLIB_IRQCHIP
1554 help
1555 Support for GPIO pins on Whiskey Cove PMIC.
1556
1557 Say Yes if you have an Intel SoC-based tablet with Whiskey Cove PMIC
1558 inside.
1559
1560 This driver can also be built as a module. If so, the module will be
1561 called gpio-wcove.
1562
1563config GPIO_WM831X
1564 tristate "WM831x GPIOs"
1565 depends on MFD_WM831X
1566 help
1567 Say yes here to access the GPIO signals of WM831x power management
1568 chips from Wolfson Microelectronics.
1569
1570config GPIO_WM8350
1571 tristate "WM8350 GPIOs"
1572 depends on MFD_WM8350
1573 help
1574 Say yes here to access the GPIO signals of WM8350 power management
1575 chips from Wolfson Microelectronics.
1576
1577config GPIO_WM8994
1578 tristate "WM8994 GPIOs"
1579 depends on MFD_WM8994
1580 help
1581 Say yes here to access the GPIO signals of WM8994 audio hub
1582 CODECs from Wolfson Microelectronics.
1583
1584endmenu
1585
1586menu "PCI GPIO expanders"
1587 depends on PCI
1588
1589config GPIO_AMD8111
1590 tristate "AMD 8111 GPIO driver"
1591 depends on X86 || COMPILE_TEST
1592 depends on HAS_IOPORT_MAP
1593 help
1594 The AMD 8111 southbridge contains 32 GPIO pins which can be used.
1595
1596 Note that usually system firmware/ACPI handles GPIO pins on their
1597 own and users might easily break their systems with uncareful usage
1598 of this driver!
1599
1600 If unsure, say N
1601
1602config GPIO_BT8XX
1603 tristate "BT8XX GPIO abuser"
1604 depends on VIDEO_BT848=n
1605 help
1606 The BT8xx frame grabber chip has 24 GPIO pins that can be abused
1607 as a cheap PCI GPIO card.
1608
1609 This chip can be found on Miro, Hauppauge and STB TV-cards.
1610
1611 The card needs to be physically altered for using it as a
1612 GPIO card. For more information on how to build a GPIO card
1613 from a BT8xx TV card, see the documentation file at
1614 Documentation/driver-api/gpio/bt8xxgpio.rst
1615
1616 If unsure, say N.
1617
1618config GPIO_MERRIFIELD
1619 tristate "Intel Merrifield GPIO support"
1620 depends on X86_INTEL_MID
1621 select GPIO_TANGIER
1622 help
1623 Say Y here to support Intel Merrifield GPIO.
1624
1625config GPIO_MLXBF
1626 tristate "Mellanox BlueField SoC GPIO"
1627 depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST)
1628 select GPIO_GENERIC
1629 help
1630 Say Y here if you want GPIO support on Mellanox BlueField SoC.
1631
1632config GPIO_MLXBF2
1633 tristate "Mellanox BlueField 2 SoC GPIO"
1634 depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST)
1635 select GPIO_GENERIC
1636 select GPIOLIB_IRQCHIP
1637 help
1638 Say Y here if you want GPIO support on Mellanox BlueField 2 SoC.
1639
1640config GPIO_MLXBF3
1641 tristate "Mellanox BlueField 3 SoC GPIO"
1642 depends on (MELLANOX_PLATFORM && ARM64) || COMPILE_TEST
1643 select GPIO_GENERIC
1644 select GPIOLIB_IRQCHIP
1645 help
1646 Say Y if you want GPIO support on Mellanox BlueField 3 SoC.
1647 This GPIO controller supports interrupt handling and enables the
1648 manipulation of certain GPIO pins.
1649 This controller should be used in parallel with pinctrl-mlxbf3 to
1650 control the desired GPIOs.
1651 This driver can also be built as a module called mlxbf3-gpio.
1652
1653config GPIO_ML_IOH
1654 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1655 depends on X86 || COMPILE_TEST
1656 select GENERIC_IRQ_CHIP
1657 help
1658 ML7213 is companion chip for Intel Atom E6xx series.
1659 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH (Input/Output
1660 Hub) which is for IVI (In-Vehicle Infotainment) use.
1661 This driver can access the IOH's GPIO device.
1662
1663config GPIO_PCH
1664 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH (ML7223/ML7831) GPIO"
1665 depends on X86_32 || MIPS || COMPILE_TEST
1666 select GENERIC_IRQ_CHIP
1667 help
1668 This driver is for PCH (Platform Controller Hub) GPIO of Intel Topcliff,
1669 which is an IOH (Input/Output Hub) for x86 embedded processor.
1670 This driver can access PCH GPIO device.
1671
1672 This driver also can be used for LAPIS Semiconductor IOH (Input/
1673 Output Hub), ML7223 and ML7831.
1674 ML7223 IOH is for MP (Media Phone) use.
1675 ML7831 IOH is for general purpose use.
1676 ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1677 ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1678
1679config GPIO_PCI_IDIO_16
1680 tristate "ACCES PCI-IDIO-16 GPIO support"
1681 select REGMAP_MMIO
1682 select GPIO_IDIO_16
1683 help
1684 Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is
1685 generated when any of the inputs change state (low to high or high to
1686 low). Input filter control is not supported by this driver, and the
1687 input filters are deactivated by this driver.
1688
1689config GPIO_PCIE_IDIO_24
1690 tristate "ACCES PCIe-IDIO-24 GPIO support"
1691 select REGMAP_IRQ
1692 select REGMAP_MMIO
1693 select GPIOLIB_IRQCHIP
1694 select GPIO_REGMAP
1695 help
1696 Enables GPIO support for the ACCES PCIe-IDIO-24 family (PCIe-IDIO-24,
1697 PCIe-IDI-24, PCIe-IDO-24, PCIe-IDIO-12). An interrupt is generated
1698 when any of the inputs change state (low to high or high to low).
1699 Input filter control is not supported by this driver, and the input
1700 filters are deactivated by this driver.
1701
1702config GPIO_RDC321X
1703 tristate "RDC R-321x GPIO support"
1704 select MFD_CORE
1705 select MFD_RDC321X
1706 help
1707 Support for the RDC R321x SoC GPIOs over southbridge
1708 PCI configuration space.
1709
1710config GPIO_SODAVILLE
1711 bool "Intel Sodaville GPIO support"
1712 depends on X86 && OF
1713 select GPIO_GENERIC
1714 select GENERIC_IRQ_CHIP
1715 help
1716 Say Y here to support Intel Sodaville GPIO.
1717
1718endmenu
1719
1720menu "SPI GPIO expanders"
1721 depends on SPI_MASTER
1722
1723config GPIO_74X164
1724 tristate "74x164 serial-in/parallel-out 8-bits shift register"
1725 depends on OF_GPIO
1726 help
1727 Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1728 shift registers. This driver can be used to provide access
1729 to more GPIO outputs.
1730
1731config GPIO_MAX3191X
1732 tristate "Maxim MAX3191x industrial serializer"
1733 select CRC8
1734 help
1735 GPIO driver for Maxim MAX31910, MAX31911, MAX31912, MAX31913,
1736 MAX31953 and MAX31963 industrial serializer, a daisy-chainable
1737 chip to make 8 digital 24V inputs available via SPI. Supports
1738 CRC checksums to guard against electromagnetic interference,
1739 as well as undervoltage and overtemperature detection.
1740
1741config GPIO_MAX7301
1742 tristate "Maxim MAX7301 GPIO expander"
1743 select GPIO_MAX730X
1744 help
1745 GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1746
1747config GPIO_MC33880
1748 tristate "Freescale MC33880 high-side/low-side switch"
1749 help
1750 SPI driver for Freescale MC33880 high-side/low-side switch.
1751 This provides GPIO interface supporting inputs and outputs.
1752
1753config GPIO_PISOSR
1754 tristate "Generic parallel-in/serial-out shift register"
1755 help
1756 GPIO driver for SPI compatible parallel-in/serial-out shift
1757 registers. These are input only devices.
1758
1759config GPIO_XRA1403
1760 tristate "EXAR XRA1403 16-bit GPIO expander"
1761 select REGMAP_SPI
1762 help
1763 GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander.
1764
1765config GPIO_MOXTET
1766 tristate "Turris Mox Moxtet bus GPIO expander"
1767 depends on MOXTET
1768 help
1769 Say yes here if you are building for the Turris Mox router.
1770 This is the driver needed for configuring the GPIOs via the Moxtet
1771 bus. For example the Mox module with SFP cage needs this driver
1772 so that phylink can use corresponding GPIOs.
1773
1774endmenu
1775
1776menu "USB GPIO expanders"
1777 depends on USB
1778
1779config GPIO_VIPERBOARD
1780 tristate "Viperboard GPIO a & b support"
1781 depends on MFD_VIPERBOARD
1782 help
1783 Say yes here to access the GPIO signals of Nano River
1784 Technologies Viperboard. There are two GPIO chips on the
1785 board: gpioa and gpiob.
1786 See viperboard API specification and Nano
1787 River Tech's viperboard.h for detailed meaning
1788 of the module parameters.
1789
1790endmenu
1791
1792menu "Virtual GPIO drivers"
1793
1794config GPIO_AGGREGATOR
1795 tristate "GPIO Aggregator"
1796 help
1797 Say yes here to enable the GPIO Aggregator, which provides a way to
1798 aggregate existing GPIO lines into a new virtual GPIO chip.
1799 This can serve the following purposes:
1800 - Assign permissions for a collection of GPIO lines to a user,
1801 - Export a collection of GPIO lines to a virtual machine,
1802 - Provide a generic driver for a GPIO-operated device in an
1803 industrial control context, to be operated from userspace using
1804 the GPIO chardev interface.
1805
1806config GPIO_LATCH
1807 tristate "GPIO latch driver"
1808 help
1809 Say yes here to enable a driver for GPIO multiplexers based on latches
1810 connected to other GPIOs.
1811
1812config GPIO_MOCKUP
1813 tristate "GPIO Testing Driver (DEPRECATED)"
1814 select IRQ_SIM
1815 help
1816 This module is DEPRECATED. Please consider using gpio-sim instead.
1817
1818 This enables GPIO Testing driver, which provides a way to test GPIO
1819 subsystem through sysfs (or char device) and debugfs.
1820 User could use it through the script in
1821 tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in
1822 it.
1823
1824config GPIO_VIRTIO
1825 tristate "VirtIO GPIO support"
1826 depends on VIRTIO
1827 select GPIOLIB_IRQCHIP
1828 help
1829 Say Y here to enable guest support for virtio-based GPIO controllers.
1830
1831 These virtual GPIOs can be routed to real GPIOs or attached to
1832 simulators on the host (like QEMU).
1833
1834config GPIO_SIM
1835 tristate "GPIO Simulator Module"
1836 select IRQ_SIM
1837 select CONFIGFS_FS
1838 help
1839 This enables the GPIO simulator - a configfs-based GPIO testing
1840 driver.
1841
1842endmenu
1843
1844endif