2 # GPIO infrastructure and drivers
8 bool "Enable Driver Model for GPIO drivers"
11 Enable driver model for GPIO access. The standard GPIO
12 interface (gpio_get_value(), etc.) is then implemented by
13 the GPIO uclass. Drivers provide methods to query the
14 particular GPIOs that they provide. The uclass interface
15 is defined in include/asm-generic/gpio.h.
18 bool "Altera PIO driver"
21 Select this to enable PIO for Altera devices. Please find
22 details on the "Embedded Peripherals IP User Guide" of Altera.
25 bool "BCM6345 GPIO driver"
26 depends on DM_GPIO && ARCH_BMIPS
28 This driver supports the GPIO banks on BCM6345 SoCs.
31 bool "DWAPB GPIO driver"
32 depends on DM && DM_GPIO
35 Support for the Designware APB GPIO driver.
38 bool "AT91 PIO GPIO driver"
42 Say yes here to select AT91 PIO GPIO driver. AT91 PIO
43 controller manages up to 32 fully programmable input/output
44 lines. Each I/O line may be dedicated as a general-purpose
45 I/O or be assigned to a function of an embedded peripheral.
46 The assignment to a function of an embedded peripheral is
47 the responsibility of AT91 Pinctrl driver. This driver is
48 responsible for the general-purpose I/O.
51 bool "ATMEL PIO4 driver"
55 Say yes here to support the Atmel PIO4 driver.
56 The PIO4 is new version of Atmel PIO controller, which manages
57 up to 128 fully programmable input/output lines. Each I/O line
58 may be dedicated as a general purpose I/O or be assigned to
59 a function of an embedded peripheral.
62 bool "DA8xx GPIO Driver"
64 This driver supports the DA8xx GPIO controller
66 config INTEL_BROADWELL_GPIO
67 bool "Intel Broadwell GPIO driver"
70 This driver supports Broadwell U devices which have an expanded
71 GPIO feature set. The difference is large enough to merit a separate
72 driver from the common Intel ICH6 driver. It supports a total of
73 95 GPIOs which can be configured from the device tree.
75 config INTEL_ICH6_GPIO
76 bool "Intel ICH6 compatible legacy GPIO driver"
79 Say yes here to select Intel ICH6 compatible legacy GPIO driver.
82 bool "i.MX7ULP RGPIO2P driver"
86 This driver supports i.MX7ULP Rapid GPIO2P controller.
89 bool "HSDK CREG GPIO griver"
93 This driver supports CREG GPIOs on Synopsys HSDK SOC.
96 bool "LPC32XX GPIO driver"
100 Support for the LPC32XX GPIO driver.
103 bool "Qualcomm GPIO driver"
107 Support GPIO controllers on Qualcomm Snapdragon family of SoCs.
108 This controller have single bank (default name "soc"), every
109 gpio has it's own set of registers.
110 Only simple GPIO operations are supported (get/set, change of
111 direction and checking pin function).
117 bool "Freescale/NXP MXC GPIO driver"
119 Support GPIO controllers on various i.MX platforms
122 bool "TI OMAP GPIO driver"
123 depends on ARCH_OMAP2PLUS
126 Support GPIO controllers on the TI OMAP3/4/5 and related (such as
127 AM335x/AM43xx/AM57xx/DRA7xx/etc) families of SoCs.
130 bool "Enable the pca953x command"
132 Deprecated: This should be converted to driver model.
134 This command provides access to a pca953x GPIO device using the
135 legacy GPIO interface. Several subcommands are provided which mirror
136 the standard 'gpio' command. It should use that instead.
139 bool "Qualcomm PM8916 PMIC GPIO/keypad driver"
140 depends on DM_GPIO && PMIC_PM8916
142 Support for GPIO pins and power/reset buttons found on
143 Qualcomm PM8916 PMIC.
144 Default name for GPIO bank is "pm8916".
145 Power and reset buttons are placed in "pm8916_key" bank and
146 have gpio numbers 0 and 1 respectively.
149 bool "PCF8575 I2C GPIO Expander driver"
150 depends on DM_GPIO && DM_I2C
152 Support for PCF8575 I2C 16-bit GPIO expander. Most of these
153 chips are from NXP and TI.
156 bool "Renesas RCar GPIO driver"
157 depends on DM_GPIO && ARCH_RMOBILE
159 This driver supports the GPIO banks on Renesas RCar SoCs.
162 bool "Rockchip GPIO driver"
165 Support GPIO access on Rockchip SoCs. The GPIOs are arranged into
166 a number of banks (different for each SoC type) each with 32 GPIOs.
167 The GPIOs for a device are defined in the device tree with one node
171 bool "Enable sandbox GPIO driver"
172 depends on SANDBOX && DM && DM_GPIO
174 This driver supports some simulated GPIOs which can be adjusted
175 using 'back door' functions like sandbox_gpio_set_value(). Then the
176 GPIOs can be inspected through the normal get_get_value()
177 interface. The purpose of this is to allow GPIOs to be used as
178 normal in sandbox, perhaps with test code actually driving the
179 behaviour of those GPIOs.
181 config SANDBOX_GPIO_COUNT
182 int "Number of sandbox GPIOs"
183 depends on SANDBOX_GPIO
186 The sandbox driver can support any number of GPIOs. Generally these
187 are specified using the device tree. But you can also have a number
188 of 'anonymous' GPIOs that do not belong to any device or bank.
189 Select a suitable value depending on your needs.
192 bool "Xilinx GPIO driver"
195 This config enable the Xilinx GPIO driver for Microblaze.
198 bool "tca642x - Command to access tca642x state"
200 DEPRECATED - This needs conversion to driver model
202 This provides a way to looking at the pin state of this device.
203 This mirrors the 'gpio' command and that should be used in preference
207 bool "Tegra20..210 GPIO driver"
210 Support for the GPIO controller contained in NVIDIA Tegra20 through
214 bool "Tegra186 GPIO driver"
217 Support for the GPIO controller contained in NVIDIA Tegra186. This
218 covers both the "main" and "AON" controller instances, even though
219 they have slightly different register layout.
223 depends on ARCH_UNIPHIER
225 Say yes here to support UniPhier GPIOs.
228 bool "Vybrid GPIO driver"
232 Say yes here to support Vybrid vf610 GPIOs.
235 bool "Microchip PIC32 GPIO driver"
236 depends on DM_GPIO && MACH_PIC32
239 Say yes here to support Microchip PIC32 GPIOs.
242 bool "ST STM32 GPIO driver"
243 depends on DM_GPIO && (STM32 || ARCH_STM32MP)
246 Device model driver support for STM32 GPIO controller. It should be
247 usable on many stm32 families like stm32f4 & stm32H7.
251 bool "Marvell MVEBU GPIO driver"
252 depends on DM_GPIO && ARCH_MVEBU
255 Say yes here to support Marvell MVEBU (Armada XP/38x) GPIOs.
258 bool "Zynq GPIO driver"
259 depends on DM_GPIO && (ARCH_ZYNQ || ARCH_ZYNQMP)
262 Supports GPIO access on Zynq SoC.
265 bool "74x164 serial-in/parallel-out 8-bits shift register"
268 Driver for 74x164 compatible serial-in/parallel-out 8-outputs
269 shift registers, such as 74lv165, 74hc595.
270 This driver can be used to provide access to more gpio outputs.
273 bool "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
276 Say yes here to provide access to several register-oriented
277 SMBus I/O expanders, made mostly by NXP or TI. Compatible
280 4 bits: pca9536, pca9537
282 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
283 pca9556, pca9557, pca9574, tca6408, xra1202
285 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
290 40 bits: pca9505, pca9698
292 Now, max 24 bits chips and PCA953X compatible chips are
296 bool "Freescale MPC8XXX GPIO driver"
299 This driver supports the built-in GPIO controller of MPC8XXX CPUs.
300 Each GPIO bank is identified by its own entry in the device tree,
303 gpio-controller@fc00 {
305 compatible = "fsl,pq3-gpio";
309 By default, each bank is assumed to have 32 GPIOs, but the ngpios
310 setting is honored, so the number of GPIOs for each bank is
311 configurable to match the actual GPIO count of the SoC (e.g. the
312 32/32/23 banks of the P1022 SoC).
314 Aside from the standard functions of input/output mode, and output
315 value setting, the open-drain feature, which can configure individual
316 GPIOs to work as open-drain outputs, is supported.