| /* |
| * LED driver for Atmel AT91-based boards. |
| * |
| * Copyright (C) SAN People (Pty) Ltd |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License |
| * as published by the Free Software Foundation; either version |
| * 2 of the License, or (at your option) any later version. |
| */ |
| |
| #include <linux/gpio.h> |
| #include <linux/kernel.h> |
| #include <linux/module.h> |
| #include <linux/init.h> |
| #include <linux/platform_device.h> |
| |
| #include "board.h" |
| #include "gpio.h" |
| |
| |
| /* ------------------------------------------------------------------------- */ |
| |
| #if defined(CONFIG_NEW_LEDS) |
| |
| /* |
| * New cross-platform LED support. |
| */ |
| |
| static struct gpio_led_platform_data led_data; |
| |
| static struct platform_device at91_gpio_leds_device = { |
| .name = "leds-gpio", |
| .id = -1, |
| .dev.platform_data = &led_data, |
| }; |
| |
| void __init at91_gpio_leds(struct gpio_led *leds, int nr) |
| { |
| int i; |
| |
| if (!nr) |
| return; |
| |
| for (i = 0; i < nr; i++) |
| at91_set_gpio_output(leds[i].gpio, leds[i].active_low); |
| |
| led_data.leds = leds; |
| led_data.num_leds = nr; |
| platform_device_register(&at91_gpio_leds_device); |
| } |
| |
| #else |
| void __init at91_gpio_leds(struct gpio_led *leds, int nr) {} |
| #endif |
| |
| |
| /* ------------------------------------------------------------------------- */ |
| |
| #if defined (CONFIG_LEDS_ATMEL_PWM) |
| |
| /* |
| * PWM Leds |
| */ |
| |
| static struct gpio_led_platform_data pwm_led_data; |
| |
| static struct platform_device at91_pwm_leds_device = { |
| .name = "leds-atmel-pwm", |
| .id = -1, |
| .dev.platform_data = &pwm_led_data, |
| }; |
| |
| void __init at91_pwm_leds(struct gpio_led *leds, int nr) |
| { |
| int i; |
| u32 pwm_mask = 0; |
| |
| if (!nr) |
| return; |
| |
| for (i = 0; i < nr; i++) |
| pwm_mask |= (1 << leds[i].gpio); |
| |
| pwm_led_data.leds = leds; |
| pwm_led_data.num_leds = nr; |
| |
| at91_add_device_pwm(pwm_mask); |
| platform_device_register(&at91_pwm_leds_device); |
| } |
| #else |
| void __init at91_pwm_leds(struct gpio_led *leds, int nr){} |
| #endif |