These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / drivers / leds / leds-sead3.c

diff --git a/kernel/drivers/leds/leds-sead3.c b/kernel/drivers/leds/leds-sead3.c
new file mode 100644 (file)
index 0000000..eb97a32
--- /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");