diff options
Diffstat (limited to 'kernel/drivers/leds/leds-sead3.c')
-rw-r--r-- | kernel/drivers/leds/leds-sead3.c | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/kernel/drivers/leds/leds-sead3.c b/kernel/drivers/leds/leds-sead3.c new file mode 100644 index 000000000..eb97a3271 --- /dev/null +++ b/kernel/drivers/leds/leds-sead3.c @@ -0,0 +1,78 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved. + * Copyright (C) 2015 Imagination Technologies, Inc. + */ +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/leds.h> +#include <linux/err.h> +#include <linux/io.h> + +#include <asm/mips-boards/sead3-addr.h> + +static void sead3_pled_set(struct led_classdev *led_cdev, + enum led_brightness value) +{ + writel(value, (void __iomem *)SEAD3_CPLD_P_LED); +} + +static void sead3_fled_set(struct led_classdev *led_cdev, + enum led_brightness value) +{ + writel(value, (void __iomem *)SEAD3_CPLD_F_LED); +} + +static struct led_classdev sead3_pled = { + .name = "sead3::pled", + .brightness_set = sead3_pled_set, + .flags = LED_CORE_SUSPENDRESUME, +}; + +static struct led_classdev sead3_fled = { + .name = "sead3::fled", + .brightness_set = sead3_fled_set, + .flags = LED_CORE_SUSPENDRESUME, +}; + +static int sead3_led_probe(struct platform_device *pdev) +{ + int ret; + + ret = led_classdev_register(&pdev->dev, &sead3_pled); + if (ret < 0) + return ret; + + ret = led_classdev_register(&pdev->dev, &sead3_fled); + if (ret < 0) + led_classdev_unregister(&sead3_pled); + + return ret; +} + +static int sead3_led_remove(struct platform_device *pdev) +{ + led_classdev_unregister(&sead3_pled); + led_classdev_unregister(&sead3_fled); + + return 0; +} + +static struct platform_driver sead3_led_driver = { + .probe = sead3_led_probe, + .remove = sead3_led_remove, + .driver = { + .name = "sead3-led", + }, +}; + +module_platform_driver(sead3_led_driver); + +MODULE_AUTHOR("Kristian Kielhofner <kris@krisk.org>"); +MODULE_DESCRIPTION("SEAD3 LED driver"); +MODULE_LICENSE("GPL"); |