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 "DWAPB GPIO driver"
26 depends on DM && DM_GPIO
29 Support for the Designware APB GPIO driver.
32 bool "ATMEL PIO4 driver"
36 Say yes here to support the Atmel PIO4 driver.
37 The PIO4 is new version of Atmel PIO controller, which manages
38 up to 128 fully programmable input/output lines. Each I/O line
39 may be dedicated as a general purpose I/O or be assigned to
40 a function of an embedded peripheral.
42 config INTEL_BROADWELL_GPIO
43 bool "Intel Broadwell GPIO driver"
46 This driver supports Broadwell U devices which have an expanded
47 GPIO feature set. The difference is large enough to merit a separate
48 driver from the common Intel ICH6 driver. It supports a total of
49 95 GPIOs which can be configured from the device tree.
52 bool "LPC32XX GPIO driver"
56 Support for the LPC32XX GPIO driver.
59 bool "Qualcomm GPIO driver"
63 Support GPIO controllers on Qualcomm Snapdragon family of SoCs.
64 This controller have single bank (default name "soc"), every
65 gpio has it's own set of registers.
66 Only simple GPIO operations are supported (get/set, change of
67 direction and checking pin function).
73 bool "Qualcomm PM8916 PMIC GPIO/keypad driver"
74 depends on DM_GPIO && PMIC_PM8916
76 Support for GPIO pins and power/reset buttons found on
78 Default name for GPIO bank is "pm8916".
79 Power and reset buttons are placed in "pm8916_key" bank and
80 have gpio numbers 0 and 1 respectively.
83 bool "Rockchip GPIO driver"
86 Support GPIO access on Rockchip SoCs. The GPIOs are arranged into
87 a number of banks (different for each SoC type) each with 32 GPIOs.
88 The GPIOs for a device are defined in the device tree with one node
92 bool "Enable sandbox GPIO driver"
93 depends on SANDBOX && DM && DM_GPIO
95 This driver supports some simulated GPIOs which can be adjusted
96 using 'back door' functions like sandbox_gpio_set_value(). Then the
97 GPIOs can be inspected through the normal get_get_value()
98 interface. The purpose of this is to allow GPIOs to be used as
99 normal in sandbox, perhaps with test code actually driving the
100 behaviour of those GPIOs.
102 config SANDBOX_GPIO_COUNT
103 int "Number of sandbox GPIOs"
104 depends on SANDBOX_GPIO
107 The sandbox driver can support any number of GPIOs. Generally these
108 are specified using the device tree. But you can also have a number
109 of 'anonymous' GPIOs that do not belong to any device or bank.
110 Select a suitable value depending on your needs.
113 bool "Tegra20..210 GPIO driver"
116 Support for the GPIO controller contained in NVIDIA Tegra20 through
121 depends on ARCH_UNIPHIER
123 Say yes here to support UniPhier GPIOs.
126 bool "Vybrid GPIO driver"
130 Say yes here to support Vybrid vf610 GPIOs.
133 bool "Microchip PIC32 GPIO driver"
134 depends on DM_GPIO && MACH_PIC32
137 Say yes here to support Microchip PIC32 GPIOs.
140 bool "Marvell MVEBU GPIO driver"
141 depends on DM_GPIO && ARCH_MVEBU
144 Say yes here to support Marvell MVEBU (Armada XP/38x) GPIOs.
147 bool "Zynq GPIO driver"
148 depends on DM_GPIO && (ARCH_ZYNQ || ARCH_ZYNQMP)
151 Supports GPIO access on Zynq SoC.
154 bool "74x164 serial-in/parallel-out 8-bits shift register"
157 Driver for 74x164 compatible serial-in/parallel-out 8-outputs
158 shift registers, such as 74lv165, 74hc595.
159 This driver can be used to provide access to more gpio outputs.
162 bool "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
165 Say yes here to provide access to several register-oriented
166 SMBus I/O expanders, made mostly by NXP or TI. Compatible
169 4 bits: pca9536, pca9537
171 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
172 pca9556, pca9557, pca9574, tca6408, xra1202
174 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
179 40 bits: pca9505, pca9698
181 Now, max 24 bits chips and PCA953X compatible chips are