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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/leds/leds-locomo.c | |
parent | Initial commit. (diff) | |
download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip |
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/leds/leds-locomo.c')
-rw-r--r-- | drivers/leds/leds-locomo.c | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/drivers/leds/leds-locomo.c b/drivers/leds/leds-locomo.c new file mode 100644 index 000000000..9aa3fccd7 --- /dev/null +++ b/drivers/leds/leds-locomo.c @@ -0,0 +1,82 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * linux/drivers/leds/leds-locomo.c + * + * Copyright (C) 2005 John Lenz <lenz@cs.wisc.edu> + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/module.h> +#include <linux/device.h> +#include <linux/leds.h> + +#include <asm/hardware/locomo.h> + +static void locomoled_brightness_set(struct led_classdev *led_cdev, + enum led_brightness value, int offset) +{ + struct locomo_dev *locomo_dev = LOCOMO_DEV(led_cdev->dev->parent); + unsigned long flags; + + local_irq_save(flags); + if (value) + locomo_writel(LOCOMO_LPT_TOFH, locomo_dev->mapbase + offset); + else + locomo_writel(LOCOMO_LPT_TOFL, locomo_dev->mapbase + offset); + local_irq_restore(flags); +} + +static void locomoled_brightness_set0(struct led_classdev *led_cdev, + enum led_brightness value) +{ + locomoled_brightness_set(led_cdev, value, LOCOMO_LPT0); +} + +static void locomoled_brightness_set1(struct led_classdev *led_cdev, + enum led_brightness value) +{ + locomoled_brightness_set(led_cdev, value, LOCOMO_LPT1); +} + +static struct led_classdev locomo_led0 = { + .name = "locomo:amber:charge", + .default_trigger = "main-battery-charging", + .brightness_set = locomoled_brightness_set0, +}; + +static struct led_classdev locomo_led1 = { + .name = "locomo:green:mail", + .default_trigger = "nand-disk", + .brightness_set = locomoled_brightness_set1, +}; + +static int locomoled_probe(struct locomo_dev *ldev) +{ + int ret; + + ret = devm_led_classdev_register(&ldev->dev, &locomo_led0); + if (ret < 0) + return ret; + + return devm_led_classdev_register(&ldev->dev, &locomo_led1); +} + + +static struct locomo_driver locomoled_driver = { + .drv = { + .name = "locomoled" + }, + .devid = LOCOMO_DEVID_LED, + .probe = locomoled_probe, +}; + +static int __init locomoled_init(void) +{ + return locomo_driver_register(&locomoled_driver); +} +module_init(locomoled_init); + +MODULE_AUTHOR("John Lenz <lenz@cs.wisc.edu>"); +MODULE_DESCRIPTION("Locomo LED driver"); +MODULE_LICENSE("GPL"); |