linux 修改代碼以支援LED 控制（board-am335xevm）

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Note:

All the codes are changed at the file board-am335xevm.c

define led informations

static struct gpio_led am335x_evm_gpio_leds[] = {{.name= "omap3evm::leda",/* normally not visible (board underside) */.default_trigger= "default-on",.gpio= GPIO_TO_PIN(1,23),/* gets replaced */.active_low= true,},{.name= "omap3evm::ledb",/* normally not visible (board underside) */.default_trigger= "default-on",.gpio=  GPIO_TO_PIN(1,24),/* gets replaced */.active_low= true,},};static struct gpio_led_platform_data am335x_evm_gpio_led_info = {.leds= am335x_evm_gpio_leds,.num_leds= ARRAY_SIZE(am335x_evm_gpio_leds),};static struct platform_device am335x_evm_leds_gpio = {    .name    = "leds-gpio",    .id    = -1,    .dev    = {        .platform_data    = &am335x_evm_gpio_led_info,    },}; 

define init function

static void leds_init(int evm_id, int profile){int err;setup_pin_mux(leds_pin_mux);err = platform_device_register(&am335x_evm_leds_gpio);if (err) {pr_err("failed to register matrix keypad (2x3) device\n");}}

add init function

static struct evm_dev_cfg gen_purp_evm_dev_cfg[] = {...{leds_init, DEV_ON_BASEBOARD, PROFILE_0},// added by driver monkey... }