| Masahiro Yamada | da333ae | 2014-10-23 22:26:09 +0900 | [diff] [blame] | 1 | config DM_GPIO |
| 2 | bool "Enable Driver Model for GPIO drivers" |
| 3 | depends on DM |
| 4 | help |
| Simon Glass | f94a1be | 2015-02-05 21:41:35 -0700 | [diff] [blame] | 5 | Enable driver model for GPIO access. The standard GPIO |
| 6 | interface (gpio_get_value(), etc.) is then implemented by |
| 7 | the GPIO uclass. Drivers provide methods to query the |
| 8 | particular GPIOs that they provide. The uclass interface |
| 9 | is defined in include/asm-generic/gpio.h. |
| Albert ARIBAUD \(3ADEV\) | 606f704 | 2015-03-31 11:40:46 +0200 | [diff] [blame] | 10 | |
| 11 | config LPC32XX_GPIO |
| 12 | bool "LPC32XX GPIO driver" |
| 13 | depends on DM |
| 14 | default n |
| 15 | help |
| 16 | Support for the LPC32XX GPIO driver. |
| Simon Glass | d79c50a | 2015-03-06 13:19:01 -0700 | [diff] [blame] | 17 | |
| 18 | config SANDBOX_GPIO |
| 19 | bool "Enable sandbox GPIO driver" |
| 20 | depends on SANDBOX && DM && DM_GPIO |
| 21 | help |
| 22 | This driver supports some simulated GPIOs which can be adjusted |
| 23 | using 'back door' functions like sandbox_gpio_set_value(). Then the |
| 24 | GPIOs can be inspected through the normal get_get_value() |
| 25 | interface. The purpose of this is to allow GPIOs to be used as |
| 26 | normal in sandbox, perhaps with test code actually driving the |
| 27 | behaviour of those GPIOs. |
| 28 | |
| 29 | config SANDBOX_GPIO_COUNT |
| 30 | int "Number of sandbox GPIOs" |
| 31 | depends on SANDBOX_GPIO |
| 32 | default 128 |
| 33 | help |
| 34 | The sandbox driver can support any number of GPIOs. Generally these |
| 35 | are specified using the device tree. But you can also have a number |
| 36 | of 'anonymous' GPIOs that do not belong to any device or bank. |
| 37 | Select a suitable value depending on your needs. |