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.
61 config INTEL_BROADWELL_GPIO
62 bool "Intel Broadwell GPIO driver"
65 This driver supports Broadwell U devices which have an expanded
66 GPIO feature set. The difference is large enough to merit a separate
67 driver from the common Intel ICH6 driver. It supports a total of
68 95 GPIOs which can be configured from the device tree.
70 config INTEL_ICH6_GPIO
71 bool "Intel ICH6 compatible legacy GPIO driver"
74 Say yes here to select Intel ICH6 compatible legacy GPIO driver.
77 bool "i.MX7ULP RGPIO2P driver"
81 This driver supports i.MX7ULP Rapid GPIO2P controller.
84 bool "LPC32XX GPIO driver"
88 Support for the LPC32XX GPIO driver.
91 bool "Qualcomm GPIO driver"
95 Support GPIO controllers on Qualcomm Snapdragon family of SoCs.
96 This controller have single bank (default name "soc"), every
97 gpio has it's own set of registers.
98 Only simple GPIO operations are supported (get/set, change of
99 direction and checking pin function).
105 bool "TI OMAP GPIO driver"
106 depends on ARCH_OMAP2PLUS
109 Support GPIO controllers on the TI OMAP3/4/5 and related (such as
110 AM335x/AM43xx/AM57xx/DRA7xx/etc) families of SoCs.
113 bool "Enable the pca953x command"
115 Deprecated: This should be converted to driver model.
117 This command provides access to a pca953x GPIO device using the
118 legacy GPIO interface. Several subcommands are provided which mirror
119 the standard 'gpio' command. It should use that instead.
122 bool "Qualcomm PM8916 PMIC GPIO/keypad driver"
123 depends on DM_GPIO && PMIC_PM8916
125 Support for GPIO pins and power/reset buttons found on
126 Qualcomm PM8916 PMIC.
127 Default name for GPIO bank is "pm8916".
128 Power and reset buttons are placed in "pm8916_key" bank and
129 have gpio numbers 0 and 1 respectively.
132 bool "PCF8575 I2C GPIO Expander driver"
133 depends on DM_GPIO && DM_I2C
135 Support for PCF8575 I2C 16-bit GPIO expander. Most of these
136 chips are from NXP and TI.
139 bool "Rockchip GPIO driver"
142 Support GPIO access on Rockchip SoCs. The GPIOs are arranged into
143 a number of banks (different for each SoC type) each with 32 GPIOs.
144 The GPIOs for a device are defined in the device tree with one node
148 bool "Enable sandbox GPIO driver"
149 depends on SANDBOX && DM && DM_GPIO
151 This driver supports some simulated GPIOs which can be adjusted
152 using 'back door' functions like sandbox_gpio_set_value(). Then the
153 GPIOs can be inspected through the normal get_get_value()
154 interface. The purpose of this is to allow GPIOs to be used as
155 normal in sandbox, perhaps with test code actually driving the
156 behaviour of those GPIOs.
158 config SANDBOX_GPIO_COUNT
159 int "Number of sandbox GPIOs"
160 depends on SANDBOX_GPIO
163 The sandbox driver can support any number of GPIOs. Generally these
164 are specified using the device tree. But you can also have a number
165 of 'anonymous' GPIOs that do not belong to any device or bank.
166 Select a suitable value depending on your needs.
169 bool "tca642x - Command to access tca642x state"
171 DEPRECATED - This needs conversion to driver model
173 This provides a way to looking at the pin state of this device.
174 This mirrors the 'gpio' command and that should be used in preference
178 bool "Tegra20..210 GPIO driver"
181 Support for the GPIO controller contained in NVIDIA Tegra20 through
185 bool "Tegra186 GPIO driver"
188 Support for the GPIO controller contained in NVIDIA Tegra186. This
189 covers both the "main" and "AON" controller instances, even though
190 they have slightly different register layout.
194 depends on ARCH_UNIPHIER
196 Say yes here to support UniPhier GPIOs.
199 bool "Vybrid GPIO driver"
203 Say yes here to support Vybrid vf610 GPIOs.
206 bool "Microchip PIC32 GPIO driver"
207 depends on DM_GPIO && MACH_PIC32
210 Say yes here to support Microchip PIC32 GPIOs.
213 bool "ST STM32 GPIO driver"
214 depends on DM_GPIO && STM32
217 Device model driver support for STM32 GPIO controller. It should be
218 usable on many stm32 families like stm32f4 & stm32H7.
222 bool "Marvell MVEBU GPIO driver"
223 depends on DM_GPIO && ARCH_MVEBU
226 Say yes here to support Marvell MVEBU (Armada XP/38x) GPIOs.
229 bool "Zynq GPIO driver"
230 depends on DM_GPIO && (ARCH_ZYNQ || ARCH_ZYNQMP)
233 Supports GPIO access on Zynq SoC.
236 bool "74x164 serial-in/parallel-out 8-bits shift register"
239 Driver for 74x164 compatible serial-in/parallel-out 8-outputs
240 shift registers, such as 74lv165, 74hc595.
241 This driver can be used to provide access to more gpio outputs.
244 bool "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
247 Say yes here to provide access to several register-oriented
248 SMBus I/O expanders, made mostly by NXP or TI. Compatible
251 4 bits: pca9536, pca9537
253 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
254 pca9556, pca9557, pca9574, tca6408, xra1202
256 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
261 40 bits: pca9505, pca9698
263 Now, max 24 bits chips and PCA953X compatible chips are
267 bool "Freescale MPC85XX GPIO driver"
270 This driver supports the built-in GPIO controller of MPC85XX CPUs.
271 Each GPIO bank is identified by its own entry in the device tree,
274 gpio-controller@fc00 {
276 compatible = "fsl,pq3-gpio";
280 By default, each bank is assumed to have 32 GPIOs, but the ngpios
281 setting is honored, so the number of GPIOs for each bank is
282 configurable to match the actual GPIO count of the SoC (e.g. the
283 32/32/23 banks of the P1022 SoC).
285 Aside from the standard functions of input/output mode, and output
286 value setting, the open-drain feature, which can configure individual
287 GPIOs to work as open-drain outputs, is supported.
289 The driver has been tested on MPC85XX, but it is likely that other
290 PowerQUICC III devices will work as well.