summaryrefslogtreecommitdiffstats
path: root/arch/mips/mti-sead3/leds-sead3.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/mips/mti-sead3/leds-sead3.c')
-rw-r--r--arch/mips/mti-sead3/leds-sead3.c128
1 files changed, 128 insertions, 0 deletions
diff --git a/arch/mips/mti-sead3/leds-sead3.c b/arch/mips/mti-sead3/leds-sead3.c
new file mode 100644
index 000000000000..a95ac5985206
--- /dev/null
+++ b/arch/mips/mti-sead3/leds-sead3.c
@@ -0,0 +1,128 @@
+/*
+ * 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.
+ */
+#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>
+
+#define DRVNAME "sead3-led"
+
+static struct platform_device *pdev;
+
+static void sead3_pled_set(struct led_classdev *led_cdev,
+ enum led_brightness value)
+{
+ pr_debug("sead3_pled_set\n");
+ writel(value, (void __iomem *)0xBF000210); /* FIXME */
+}
+
+static void sead3_fled_set(struct led_classdev *led_cdev,
+ enum led_brightness value)
+{
+ pr_debug("sead3_fled_set\n");
+ writel(value, (void __iomem *)0xBF000218); /* FIXME */
+}
+
+static struct led_classdev sead3_pled = {
+ .name = "sead3::pled",
+ .brightness_set = sead3_pled_set,
+};
+
+static struct led_classdev sead3_fled = {
+ .name = "sead3::fled",
+ .brightness_set = sead3_fled_set,
+};
+
+#ifdef CONFIG_PM
+static int sead3_led_suspend(struct platform_device *dev,
+ pm_message_t state)
+{
+ led_classdev_suspend(&sead3_pled);
+ led_classdev_suspend(&sead3_fled);
+ return 0;
+}
+
+static int sead3_led_resume(struct platform_device *dev)
+{
+ led_classdev_resume(&sead3_pled);
+ led_classdev_resume(&sead3_fled);
+ return 0;
+}
+#else
+#define sead3_led_suspend NULL
+#define sead3_led_resume NULL
+#endif
+
+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,
+ .suspend = sead3_led_suspend,
+ .resume = sead3_led_resume,
+ .driver = {
+ .name = DRVNAME,
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init sead3_led_init(void)
+{
+ int ret;
+
+ ret = platform_driver_register(&sead3_led_driver);
+ if (ret < 0)
+ goto out;
+
+ pdev = platform_device_register_simple(DRVNAME, -1, NULL, 0);
+ if (IS_ERR(pdev)) {
+ ret = PTR_ERR(pdev);
+ platform_driver_unregister(&sead3_led_driver);
+ goto out;
+ }
+
+out:
+ return ret;
+}
+
+static void __exit sead3_led_exit(void)
+{
+ platform_device_unregister(pdev);
+ platform_driver_unregister(&sead3_led_driver);
+}
+
+module_init(sead3_led_init);
+module_exit(sead3_led_exit);
+
+MODULE_AUTHOR("Kristian Kielhofner <kris@krisk.org>");
+MODULE_DESCRIPTION("SEAD3 LED driver");
+MODULE_LICENSE("GPL");
+