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 "Renesas RCar GPIO driver"
140 depends on DM_GPIO && ARCH_RMOBILE
142 This driver supports the GPIO banks on Renesas RCar SoCs.
145 bool "Rockchip GPIO driver"
148 Support GPIO access on Rockchip SoCs. The GPIOs are arranged into
149 a number of banks (different for each SoC type) each with 32 GPIOs.
150 The GPIOs for a device are defined in the device tree with one node
154 bool "Enable sandbox GPIO driver"
155 depends on SANDBOX && DM && DM_GPIO
157 This driver supports some simulated GPIOs which can be adjusted
158 using 'back door' functions like sandbox_gpio_set_value(). Then the
159 GPIOs can be inspected through the normal get_get_value()
160 interface. The purpose of this is to allow GPIOs to be used as
161 normal in sandbox, perhaps with test code actually driving the
162 behaviour of those GPIOs.
164 config SANDBOX_GPIO_COUNT
165 int "Number of sandbox GPIOs"
166 depends on SANDBOX_GPIO
169 The sandbox driver can support any number of GPIOs. Generally these
170 are specified using the device tree. But you can also have a number
171 of 'anonymous' GPIOs that do not belong to any device or bank.
172 Select a suitable value depending on your needs.
175 bool "tca642x - Command to access tca642x state"
177 DEPRECATED - This needs conversion to driver model
179 This provides a way to looking at the pin state of this device.
180 This mirrors the 'gpio' command and that should be used in preference
184 bool "Tegra20..210 GPIO driver"
187 Support for the GPIO controller contained in NVIDIA Tegra20 through
191 bool "Tegra186 GPIO driver"
194 Support for the GPIO controller contained in NVIDIA Tegra186. This
195 covers both the "main" and "AON" controller instances, even though
196 they have slightly different register layout.
200 depends on ARCH_UNIPHIER
202 Say yes here to support UniPhier GPIOs.
205 bool "Vybrid GPIO driver"
209 Say yes here to support Vybrid vf610 GPIOs.
212 bool "Microchip PIC32 GPIO driver"
213 depends on DM_GPIO && MACH_PIC32
216 Say yes here to support Microchip PIC32 GPIOs.
219 bool "ST STM32 GPIO driver"
220 depends on DM_GPIO && STM32
223 Device model driver support for STM32 GPIO controller. It should be
224 usable on many stm32 families like stm32f4 & stm32H7.
228 bool "Marvell MVEBU GPIO driver"
229 depends on DM_GPIO && ARCH_MVEBU
232 Say yes here to support Marvell MVEBU (Armada XP/38x) GPIOs.
235 bool "Zynq GPIO driver"
236 depends on DM_GPIO && (ARCH_ZYNQ || ARCH_ZYNQMP)
239 Supports GPIO access on Zynq SoC.
242 bool "74x164 serial-in/parallel-out 8-bits shift register"
245 Driver for 74x164 compatible serial-in/parallel-out 8-outputs
246 shift registers, such as 74lv165, 74hc595.
247 This driver can be used to provide access to more gpio outputs.
250 bool "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
253 Say yes here to provide access to several register-oriented
254 SMBus I/O expanders, made mostly by NXP or TI. Compatible
257 4 bits: pca9536, pca9537
259 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
260 pca9556, pca9557, pca9574, tca6408, xra1202
262 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
267 40 bits: pca9505, pca9698
269 Now, max 24 bits chips and PCA953X compatible chips are
273 bool "Freescale MPC85XX GPIO driver"
276 This driver supports the built-in GPIO controller of MPC85XX CPUs.
277 Each GPIO bank is identified by its own entry in the device tree,
280 gpio-controller@fc00 {
282 compatible = "fsl,pq3-gpio";
286 By default, each bank is assumed to have 32 GPIOs, but the ngpios
287 setting is honored, so the number of GPIOs for each bank is
288 configurable to match the actual GPIO count of the SoC (e.g. the
289 32/32/23 banks of the P1022 SoC).
291 Aside from the standard functions of input/output mode, and output
292 value setting, the open-drain feature, which can configure individual
293 GPIOs to work as open-drain outputs, is supported.
295 The driver has been tested on MPC85XX, but it is likely that other
296 PowerQUICC III devices will work as well.