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.
71 bool "i.MX7ULP RGPIO2P driver"
75 This driver supports i.MX7ULP Rapid GPIO2P controller.
78 bool "LPC32XX GPIO driver"
82 Support for the LPC32XX GPIO driver.
85 bool "Qualcomm GPIO driver"
89 Support GPIO controllers on Qualcomm Snapdragon family of SoCs.
90 This controller have single bank (default name "soc"), every
91 gpio has it's own set of registers.
92 Only simple GPIO operations are supported (get/set, change of
93 direction and checking pin function).
99 bool "Qualcomm PM8916 PMIC GPIO/keypad driver"
100 depends on DM_GPIO && PMIC_PM8916
102 Support for GPIO pins and power/reset buttons found on
103 Qualcomm PM8916 PMIC.
104 Default name for GPIO bank is "pm8916".
105 Power and reset buttons are placed in "pm8916_key" bank and
106 have gpio numbers 0 and 1 respectively.
109 bool "PCF8575 I2C GPIO Expander driver"
110 depends on DM_GPIO && DM_I2C
112 Support for PCF8575 I2C 16-bit GPIO expander. Most of these
113 chips are from NXP and TI.
116 bool "Rockchip GPIO driver"
119 Support GPIO access on Rockchip SoCs. The GPIOs are arranged into
120 a number of banks (different for each SoC type) each with 32 GPIOs.
121 The GPIOs for a device are defined in the device tree with one node
125 bool "Enable sandbox GPIO driver"
126 depends on SANDBOX && DM && DM_GPIO
128 This driver supports some simulated GPIOs which can be adjusted
129 using 'back door' functions like sandbox_gpio_set_value(). Then the
130 GPIOs can be inspected through the normal get_get_value()
131 interface. The purpose of this is to allow GPIOs to be used as
132 normal in sandbox, perhaps with test code actually driving the
133 behaviour of those GPIOs.
135 config SANDBOX_GPIO_COUNT
136 int "Number of sandbox GPIOs"
137 depends on SANDBOX_GPIO
140 The sandbox driver can support any number of GPIOs. Generally these
141 are specified using the device tree. But you can also have a number
142 of 'anonymous' GPIOs that do not belong to any device or bank.
143 Select a suitable value depending on your needs.
146 bool "Tegra20..210 GPIO driver"
149 Support for the GPIO controller contained in NVIDIA Tegra20 through
153 bool "Tegra186 GPIO driver"
156 Support for the GPIO controller contained in NVIDIA Tegra186. This
157 covers both the "main" and "AON" controller instances, even though
158 they have slightly different register layout.
162 depends on ARCH_UNIPHIER
164 Say yes here to support UniPhier GPIOs.
167 bool "Vybrid GPIO driver"
171 Say yes here to support Vybrid vf610 GPIOs.
174 bool "Microchip PIC32 GPIO driver"
175 depends on DM_GPIO && MACH_PIC32
178 Say yes here to support Microchip PIC32 GPIOs.
181 bool "ST STM32 GPIO driver"
182 depends on DM_GPIO && STM32
185 Device model driver support for STM32 GPIO controller. It should be
186 usable on many stm32 families like stm32f4 & stm32H7.
190 bool "Marvell MVEBU GPIO driver"
191 depends on DM_GPIO && ARCH_MVEBU
194 Say yes here to support Marvell MVEBU (Armada XP/38x) GPIOs.
197 bool "Zynq GPIO driver"
198 depends on DM_GPIO && (ARCH_ZYNQ || ARCH_ZYNQMP)
201 Supports GPIO access on Zynq SoC.
204 bool "74x164 serial-in/parallel-out 8-bits shift register"
207 Driver for 74x164 compatible serial-in/parallel-out 8-outputs
208 shift registers, such as 74lv165, 74hc595.
209 This driver can be used to provide access to more gpio outputs.
212 bool "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
215 Say yes here to provide access to several register-oriented
216 SMBus I/O expanders, made mostly by NXP or TI. Compatible
219 4 bits: pca9536, pca9537
221 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
222 pca9556, pca9557, pca9574, tca6408, xra1202
224 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
229 40 bits: pca9505, pca9698
231 Now, max 24 bits chips and PCA953X compatible chips are
235 bool "Freescale MPC85XX GPIO driver"
238 This driver supports the built-in GPIO controller of MPC85XX CPUs.
239 Each GPIO bank is identified by its own entry in the device tree,
242 gpio-controller@fc00 {
244 compatible = "fsl,pq3-gpio";
248 By default, each bank is assumed to have 32 GPIOs, but the ngpios
249 setting is honored, so the number of GPIOs for each bank is
250 configurable to match the actual GPIO count of the SoC (e.g. the
251 32/32/23 banks of the P1022 SoC).
253 Aside from the standard functions of input/output mode, and output
254 value setting, the open-drain feature, which can configure individual
255 GPIOs to work as open-drain outputs, is supported.
257 The driver has been tested on MPC85XX, but it is likely that other
258 PowerQUICC III devices will work as well.