From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- kernel/drivers/leds/leds-cobalt-qube.c | 87 ++++++++++++++++++++++++++++++++++ 1 file changed, 87 insertions(+) create mode 100644 kernel/drivers/leds/leds-cobalt-qube.c (limited to 'kernel/drivers/leds/leds-cobalt-qube.c') diff --git a/kernel/drivers/leds/leds-cobalt-qube.c b/kernel/drivers/leds/leds-cobalt-qube.c new file mode 100644 index 000000000..d97522080 --- /dev/null +++ b/kernel/drivers/leds/leds-cobalt-qube.c @@ -0,0 +1,87 @@ +/* + * Copyright 2006 - Florian Fainelli + * + * Control the Cobalt Qube/RaQ front LED + */ +#include +#include +#include +#include +#include +#include + +#define LED_FRONT_LEFT 0x01 +#define LED_FRONT_RIGHT 0x02 + +static void __iomem *led_port; +static u8 led_value; + +static void qube_front_led_set(struct led_classdev *led_cdev, + enum led_brightness brightness) +{ + if (brightness) + led_value = LED_FRONT_LEFT | LED_FRONT_RIGHT; + else + led_value = ~(LED_FRONT_LEFT | LED_FRONT_RIGHT); + writeb(led_value, led_port); +} + +static struct led_classdev qube_front_led = { + .name = "qube::front", + .brightness = LED_FULL, + .brightness_set = qube_front_led_set, + .default_trigger = "default-on", +}; + +static int cobalt_qube_led_probe(struct platform_device *pdev) +{ + struct resource *res; + int retval; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) + return -EBUSY; + + led_port = devm_ioremap(&pdev->dev, res->start, resource_size(res)); + if (!led_port) + return -ENOMEM; + + led_value = LED_FRONT_LEFT | LED_FRONT_RIGHT; + writeb(led_value, led_port); + + retval = led_classdev_register(&pdev->dev, &qube_front_led); + if (retval) + goto err_null; + + return 0; + +err_null: + led_port = NULL; + + return retval; +} + +static int cobalt_qube_led_remove(struct platform_device *pdev) +{ + led_classdev_unregister(&qube_front_led); + + if (led_port) + led_port = NULL; + + return 0; +} + +static struct platform_driver cobalt_qube_led_driver = { + .probe = cobalt_qube_led_probe, + .remove = cobalt_qube_led_remove, + .driver = { + .name = "cobalt-qube-leds", + }, +}; + +module_platform_driver(cobalt_qube_led_driver); + +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("Front LED support for Cobalt Server"); +MODULE_AUTHOR("Florian Fainelli "); +MODULE_ALIAS("platform:cobalt-qube-leds"); -- cgit 1.2.3-korg