d2912cb15b
Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
84 lines
1.9 KiB
C
84 lines
1.9 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* linux/drivers/leds/leds-locomo.c
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*
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* Copyright (C) 2005 John Lenz <lenz@cs.wisc.edu>
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/device.h>
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#include <linux/leds.h>
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#include <mach/hardware.h>
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#include <asm/hardware/locomo.h>
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static void locomoled_brightness_set(struct led_classdev *led_cdev,
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enum led_brightness value, int offset)
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{
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struct locomo_dev *locomo_dev = LOCOMO_DEV(led_cdev->dev->parent);
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unsigned long flags;
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local_irq_save(flags);
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if (value)
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locomo_writel(LOCOMO_LPT_TOFH, locomo_dev->mapbase + offset);
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else
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locomo_writel(LOCOMO_LPT_TOFL, locomo_dev->mapbase + offset);
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local_irq_restore(flags);
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}
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static void locomoled_brightness_set0(struct led_classdev *led_cdev,
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enum led_brightness value)
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{
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locomoled_brightness_set(led_cdev, value, LOCOMO_LPT0);
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}
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static void locomoled_brightness_set1(struct led_classdev *led_cdev,
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enum led_brightness value)
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{
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locomoled_brightness_set(led_cdev, value, LOCOMO_LPT1);
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}
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static struct led_classdev locomo_led0 = {
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.name = "locomo:amber:charge",
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.default_trigger = "main-battery-charging",
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.brightness_set = locomoled_brightness_set0,
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};
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static struct led_classdev locomo_led1 = {
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.name = "locomo:green:mail",
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.default_trigger = "nand-disk",
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.brightness_set = locomoled_brightness_set1,
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};
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static int locomoled_probe(struct locomo_dev *ldev)
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{
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int ret;
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ret = devm_led_classdev_register(&ldev->dev, &locomo_led0);
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if (ret < 0)
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return ret;
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return devm_led_classdev_register(&ldev->dev, &locomo_led1);
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}
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static struct locomo_driver locomoled_driver = {
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.drv = {
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.name = "locomoled"
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},
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.devid = LOCOMO_DEVID_LED,
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.probe = locomoled_probe,
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};
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static int __init locomoled_init(void)
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{
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return locomo_driver_register(&locomoled_driver);
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}
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module_init(locomoled_init);
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MODULE_AUTHOR("John Lenz <lenz@cs.wisc.edu>");
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MODULE_DESCRIPTION("Locomo LED driver");
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MODULE_LICENSE("GPL");
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