projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| cc2832a1 AV |
1 | /* |
| 2 | * LED driver for Atmel AT91-based boards. | |
| 3 | * | |
| 4 | * Copyright (C) SAN People (Pty) Ltd | |
| 5 | * | |
| 6 | * This program is free software; you can redistribute it and/or | |
| 7 | * modify it under the terms of the GNU General Public License | |
| 8 | * as published by the Free Software Foundation; either version | |
| 9 | * 2 of the License, or (at your option) any later version. | |
| 10 | */ | |
| 11 | ||
| 2f8163ba | 12 | #include <linux/gpio.h> |
| cc2832a1 AV |
13 | #include <linux/kernel.h> |
| 14 | #include <linux/module.h> | |
| 15 | #include <linux/init.h> | |
| a7307bf2 | 16 | #include <linux/platform_device.h> |
| cc2832a1 | 17 | |
| 43d2f532 | 18 | #include "board.h" |
| cc2832a1 AV |
19 | |
| 20 | ||
| a04ff1af AV |
21 | /* ------------------------------------------------------------------------- */ |
| 22 | ||
| 23 | #if defined(CONFIG_NEW_LEDS) | |
| 24 | ||
| a04ff1af AV |
25 | /* |
| 26 | * New cross-platform LED support. | |
| 27 | */ | |
| 28 | ||
| 29 | static struct gpio_led_platform_data led_data; | |
| 30 | ||
| 791ccf2e | 31 | static struct platform_device at91_gpio_leds_device = { |
| a04ff1af AV |
32 | .name = "leds-gpio", |
| 33 | .id = -1, | |
| 34 | .dev.platform_data = &led_data, | |
| 35 | }; | |
| 36 | ||
| 37 | void __init at91_gpio_leds(struct gpio_led *leds, int nr) | |
| 38 | { | |
| 39 | int i; | |
| 40 | ||
| 41 | if (!nr) | |
| 42 | return; | |
| 43 | ||
| 44 | for (i = 0; i < nr; i++) | |
| 45 | at91_set_gpio_output(leds[i].gpio, leds[i].active_low); | |
| 46 | ||
| 47 | led_data.leds = leds; | |
| 48 | led_data.num_leds = nr; | |
| 791ccf2e | 49 | platform_device_register(&at91_gpio_leds_device); |
| a04ff1af AV |
50 | } |
| 51 | ||
| 52 | #else | |
| 53 | void __init at91_gpio_leds(struct gpio_led *leds, int nr) {} | |
| 54 | #endif | |
| 55 | ||
| 56 | ||
| a7307bf2 AV |
57 | /* ------------------------------------------------------------------------- */ |
| 58 | ||
| 59 | #if defined (CONFIG_LEDS_ATMEL_PWM) | |
| 60 | ||
| 61 | /* | |
| 62 | * PWM Leds | |
| 63 | */ | |
| 64 | ||
| 65 | static struct gpio_led_platform_data pwm_led_data; | |
| 66 | ||
| 791ccf2e | 67 | static struct platform_device at91_pwm_leds_device = { |
| a7307bf2 AV |
68 | .name = "leds-atmel-pwm", |
| 69 | .id = -1, | |
| 70 | .dev.platform_data = &pwm_led_data, | |
| 71 | }; | |
| 72 | ||
| 73 | void __init at91_pwm_leds(struct gpio_led *leds, int nr) | |
| 74 | { | |
| 75 | int i; | |
| 76 | u32 pwm_mask = 0; | |
| 77 | ||
| 78 | if (!nr) | |
| 79 | return; | |
| 80 | ||
| 81 | for (i = 0; i < nr; i++) | |
| 82 | pwm_mask |= (1 << leds[i].gpio); | |
| 83 | ||
| 84 | pwm_led_data.leds = leds; | |
| 85 | pwm_led_data.num_leds = nr; | |
| 86 | ||
| 87 | at91_add_device_pwm(pwm_mask); | |
| 791ccf2e | 88 | platform_device_register(&at91_pwm_leds_device); |
| a7307bf2 AV |
89 | } |
| 90 | #else | |
| 91 | void __init at91_pwm_leds(struct gpio_led *leds, int nr){} | |
| 92 | #endif |