Re: [Armadeus-forum] gpio keys - configuration apf51dev-baseboard

[Nicolas C. <nic...@ar...>]

Hi Gianluca


> Hi Nicolas,
>
> it's an APF51 processor board.
>
ok so I would say that the pin number you use are wrong and not available.
GPIO 2_27 is EIM_CS2 on the iMX. This signal is not routed on the Hirose
connectors
GPIO 2_28 is EIM_CS3 on the iMX. This signal is not routed on the Hirose
connectors
GPIO 2_29 is EIM_CS4 on the iMX. This signal is not routed on the Hirose
connectors

Can you check your carrier board pin assigment ?
Best regards
Nicolas
>
> On 03/02/2015 18:02, Nicolas Colombain wrote:
>> Hi Gianluca,
>>
>>> Hi all,
>>>
>>> I'm trying to use the gpio_keys driver with 3 GPIOs connected to
>>> switches located on our custom board. I have followed the example
>>> reported on the wiki for the apf51 evaluation board (armadeus
>>> v.5.3), and that one works fine. Unfortunately, I'm not able to
>>> detect any event associated with the activation of the switches on
>>> the custom board.
>>>
>>> I have enabled the gpio_keys in the kernel configuration and here
>>> are the changes to the apf51dev-baseboard.c :
>>>
>>> #if defined(CONFIG_KEYBOARD_GPIO) ||
>>> defined(CONFIG_KEYBOARD_GPIO_MODULE)
>>> static struct gpio_keys_button apf51dev_gpio_keys[] = {
>>>     {
>>>         .gpio        = IMX_GPIO_NR(2, 27),
>>>         .code        = BTN_EXTRA,
>>>         .desc        = "display btn KEY 1",
>>>         .active_low    = 1,
>>>         .wakeup        = 0,
>>>     },
>>>     {
>>>         .gpio        = IMX_GPIO_NR(2, 28),
>>>         .code        = BTN_EXTRA,
>>>         .desc        = "display btn KEY 2",
>>>         .active_low    = 1,
>>>         .wakeup        = 0,
>>>     },
>>>     {
>>>         .gpio        = IMX_GPIO_NR(2, 29),
>>>         .code        = BTN_EXTRA,
>>>         .desc        = "display btn KEY 3",
>>>         .active_low    = 1,
>>>         .wakeup        = 0,
>>>     }
>>> };
>>>
>>> static struct gpio_keys_platform_data apf51dev_gpio_keys_data = {
>>>     .buttons    = apf51dev_gpio_keys,
>>>     .nbuttons    = ARRAY_SIZE(apf51dev_gpio_keys),
>>> };
>>>
>>> static struct platform_device apf51dev_gpio_keys_device = {
>>>     .name = "gpio-keys",
>>>     .id = -1,
>>>     .dev = {
>>>         .platform_data = &apf51dev_gpio_keys_data,
>>>     },
>>> };
>>> #endif /* CONFIG_KEYBOARD_GPIO */
>>>
>>>
>>> static struct platform_device *platform_devices[] __initdata = {
>>> #if defined(CONFIG_KEYBOARD_GPIO) ||
>>> defined(CONFIG_KEYBOARD_GPIO_MODULE)
>>>     &apf51dev_gpio_keys_device,
>>> #endif
>>> };
>>>
>>> Am I missing something?
>>>
>>> Thanks,
>>> Gianluca
>>
>> Do you use an APF51 or is it your own processor board ?
>> Best regards
>> nicolas
>>
>>
>>
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