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.
102 config MSCC_BITBANG_SPI_GPIO
103 bool "Microsemi bitbang spi GPIO driver"
104 depends on DM_GPIO && SOC_VCOREIII
106 Support controlling the GPIO used for SPI bitbang by software. Can
107 be used by the VCoreIII SoCs, but it was mainly useful for Luton.
110 bool "Microsemi Serial GPIO driver"
111 depends on DM_GPIO && SOC_VCOREIII
113 Support for the VCoreIII SoC serial GPIO device. By using a
114 serial interface, the SIO controller significantly extends
115 the number of available GPIOs with a minimum number of
116 additional pins on the device. The primary purpose of the
117 SIO controller is to connect control signals from SFP
118 modules and to act as an LED controller.
121 bool "Qualcomm GPIO driver"
125 Support GPIO controllers on Qualcomm Snapdragon family of SoCs.
126 This controller have single bank (default name "soc"), every
127 gpio has it's own set of registers.
128 Only simple GPIO operations are supported (get/set, change of
129 direction and checking pin function).
135 bool "Freescale/NXP MXC GPIO driver"
137 Support GPIO controllers on various i.MX platforms
140 bool "TI OMAP GPIO driver"
141 depends on ARCH_OMAP2PLUS
144 Support GPIO controllers on the TI OMAP3/4/5 and related (such as
145 AM335x/AM43xx/AM57xx/DRA7xx/etc) families of SoCs.
148 bool "Enable the pca953x command"
150 Deprecated: This should be converted to driver model.
152 This command provides access to a pca953x GPIO device using the
153 legacy GPIO interface. Several subcommands are provided which mirror
154 the standard 'gpio' command. It should use that instead.
157 bool "Qualcomm PM8916 PMIC GPIO/keypad driver"
158 depends on DM_GPIO && PMIC_PM8916
160 Support for GPIO pins and power/reset buttons found on
161 Qualcomm PM8916 PMIC.
162 Default name for GPIO bank is "pm8916".
163 Power and reset buttons are placed in "pm8916_key" bank and
164 have gpio numbers 0 and 1 respectively.
167 bool "PCF8575 I2C GPIO Expander driver"
168 depends on DM_GPIO && DM_I2C
170 Support for PCF8575 I2C 16-bit GPIO expander. Most of these
171 chips are from NXP and TI.
174 bool "Renesas RCar GPIO driver"
175 depends on DM_GPIO && ARCH_RMOBILE
177 This driver supports the GPIO banks on Renesas RCar SoCs.
180 bool "Rockchip GPIO driver"
183 Support GPIO access on Rockchip SoCs. The GPIOs are arranged into
184 a number of banks (different for each SoC type) each with 32 GPIOs.
185 The GPIOs for a device are defined in the device tree with one node
189 bool "Enable sandbox GPIO driver"
190 depends on SANDBOX && DM && DM_GPIO
192 This driver supports some simulated GPIOs which can be adjusted
193 using 'back door' functions like sandbox_gpio_set_value(). Then the
194 GPIOs can be inspected through the normal get_get_value()
195 interface. The purpose of this is to allow GPIOs to be used as
196 normal in sandbox, perhaps with test code actually driving the
197 behaviour of those GPIOs.
199 config SANDBOX_GPIO_COUNT
200 int "Number of sandbox GPIOs"
201 depends on SANDBOX_GPIO
204 The sandbox driver can support any number of GPIOs. Generally these
205 are specified using the device tree. But you can also have a number
206 of 'anonymous' GPIOs that do not belong to any device or bank.
207 Select a suitable value depending on your needs.
210 bool "Xilinx GPIO driver"
213 This config enable the Xilinx GPIO driver for Microblaze.
216 bool "tca642x - Command to access tca642x state"
218 DEPRECATED - This needs conversion to driver model
220 This provides a way to looking at the pin state of this device.
221 This mirrors the 'gpio' command and that should be used in preference
225 bool "Tegra20..210 GPIO driver"
228 Support for the GPIO controller contained in NVIDIA Tegra20 through
232 bool "Tegra186 GPIO driver"
235 Support for the GPIO controller contained in NVIDIA Tegra186. This
236 covers both the "main" and "AON" controller instances, even though
237 they have slightly different register layout.
241 depends on ARCH_UNIPHIER
243 Say yes here to support UniPhier GPIOs.
246 bool "Vybrid GPIO driver"
250 Say yes here to support Vybrid vf610 GPIOs.
253 bool "Microchip PIC32 GPIO driver"
254 depends on DM_GPIO && MACH_PIC32
257 Say yes here to support Microchip PIC32 GPIOs.
260 bool "ST STM32 GPIO driver"
261 depends on DM_GPIO && (STM32 || ARCH_STM32MP)
264 Device model driver support for STM32 GPIO controller. It should be
265 usable on many stm32 families like stm32f4 & stm32H7.
269 bool "Marvell MVEBU GPIO driver"
270 depends on DM_GPIO && ARCH_MVEBU
273 Say yes here to support Marvell MVEBU (Armada XP/38x) GPIOs.
276 bool "Zynq GPIO driver"
277 depends on DM_GPIO && (ARCH_ZYNQ || ARCH_ZYNQMP)
280 Supports GPIO access on Zynq SoC.
283 bool "74x164 serial-in/parallel-out 8-bits shift register"
286 Driver for 74x164 compatible serial-in/parallel-out 8-outputs
287 shift registers, such as 74lv165, 74hc595.
288 This driver can be used to provide access to more gpio outputs.
291 bool "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
294 Say yes here to provide access to several register-oriented
295 SMBus I/O expanders, made mostly by NXP or TI. Compatible
298 4 bits: pca9536, pca9537
300 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
301 pca9556, pca9557, pca9574, tca6408, xra1202
303 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
308 40 bits: pca9505, pca9698
310 Now, max 24 bits chips and PCA953X compatible chips are
314 bool "Freescale MPC8XXX GPIO driver"
317 This driver supports the built-in GPIO controller of MPC8XXX CPUs.
318 Each GPIO bank is identified by its own entry in the device tree,
321 gpio-controller@fc00 {
323 compatible = "fsl,pq3-gpio";
327 By default, each bank is assumed to have 32 GPIOs, but the ngpios
328 setting is honored, so the number of GPIOs for each bank is
329 configurable to match the actual GPIO count of the SoC (e.g. the
330 32/32/23 banks of the P1022 SoC).
332 Aside from the standard functions of input/output mode, and output
333 value setting, the open-drain feature, which can configure individual
334 GPIOs to work as open-drain outputs, is supported.
337 bool "MediaTek MT7621 GPIO driver"
338 depends on DM_GPIO && ARCH_MT7620
341 Say yes here to support MediaTek MT7621 compatible GPIOs.