From: Tony Lindgren <tony@atomide.com>
Date: Thu, 10 Aug 2006 07:26:34 +0000 (+0300)
Subject: ARM: OMAP: Add leds-omap.c accidentally left out
X-Git-Tag: v2.6.18-omap1~115
X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=247d64d8169d2f25a5f7d1b16222f2da76f51fd3;p=linux-2.6-omap-h63xx.git

ARM: OMAP: Add leds-omap.c accidentally left out

This file was accidentally left out from
5757cc0458b968c8f02fec99f147ffaa7761cfd0.

Signed-off-by: Tony Lindgren <tony@atomide.com>
---

diff --git a/drivers/leds/leds-omap.c b/drivers/leds/leds-omap.c
new file mode 100644
index 00000000000..4667ece4001
--- /dev/null
+++ b/drivers/leds/leds-omap.c
@@ -0,0 +1,136 @@
+/* drivers/leds/leds-omap.c
+ *
+ * (C) 2006 Samsung Electronics
+ * Kyungmin Park <kyungmin.park@samsung.com>
+ *
+ * OMAP - LEDs GPIO driver
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/leds.h>
+
+#include <asm/arch/gpio.h>
+#include <asm/arch/hardware.h>
+#include <asm/arch/led.h>
+
+/* our context */
+
+static void omap_set_led_gpio(struct led_classdev *led_cdev,
+			    enum led_brightness value)
+{
+	struct omap_led_config *led_dev;
+
+	led_dev = container_of(led_cdev, struct omap_led_config, cdev);
+
+	if (value)
+		omap_set_gpio_dataout(led_dev->gpio, 1);
+	else
+		omap_set_gpio_dataout(led_dev->gpio, 0);
+}
+
+static void omap_configure_led_gpio(int gpio)
+{
+	if (omap_request_gpio(gpio) < 0) {
+		printk(KERN_ERR "Failed to request GPIO%d for LEDs\n", gpio);
+		return;
+	}
+	omap_set_gpio_direction(gpio, 0);	/* OUT */
+}
+
+static int omap_led_probe(struct platform_device *dev)
+{
+	struct omap_led_platform_data *pdata = dev->dev.platform_data;
+	struct omap_led_config *leds = pdata->leds;
+	int i, ret = 0;
+
+	for (i = 0; ret >= 0 && i < pdata->nr_leds; i++) {
+		omap_configure_led_gpio(leds[i].gpio);
+		if (!leds[i].cdev.brightness_set)
+			leds[i].cdev.brightness_set = omap_set_led_gpio;
+
+		ret = led_classdev_register(&dev->dev, &leds[i].cdev);
+	}
+
+	if (ret < 0 && i > 1) {
+		for (i = i - 2; i >= 0; i--)
+			led_classdev_unregister(&leds[i].cdev);
+	}
+
+	return ret;
+}
+
+static int omap_led_remove(struct platform_device *dev)
+{
+	struct omap_led_platform_data *pdata = dev->dev.platform_data;
+	struct omap_led_config *leds = pdata->leds;
+	int i;
+
+	for (i = 0; i < pdata->nr_leds; i++)
+		led_classdev_unregister(&leds[i].cdev);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM
+static int omap_led_suspend(struct platform_device *dev, pm_message_t state)
+{
+	struct omap_led_platform_data *pdata = dev->dev.platform_data;
+	struct omap_led_config *leds = pdata->leds;
+	int i;
+
+	for (i = 0; i < pdata->nr_leds; i++)
+		led_classdev_suspend(&leds[i].cdev);
+
+	return 0;
+}
+
+static int omap_led_resume(struct platform_device *dev)
+{
+	struct omap_led_platform_data *pdata = dev->dev.platform_data;
+	struct omap_led_config *leds = pdata->leds;
+	int i;
+
+	for (i = 0; i < pdata->nr_leds; i++)
+		led_classdev_resume(&leds[i].cdev);
+
+	return 0;
+}
+#else
+#define omap_led_suspend	NULL
+#define omap_led_resume		NULL
+#endif
+
+static struct platform_driver omap_led_driver = {
+	.probe		= omap_led_probe,
+	.remove		= omap_led_remove,
+	.suspend	= omap_led_suspend,
+	.resume		= omap_led_resume,
+	.driver		= {
+		.name		= "omap-led",
+		.owner		= THIS_MODULE,
+	},
+};
+
+static int __init omap_led_init(void)
+{
+	return platform_driver_register(&omap_led_driver);
+}
+
+static void __exit omap_led_exit(void)
+{
+ 	platform_driver_unregister(&omap_led_driver);
+}
+
+module_init(omap_led_init);
+module_exit(omap_led_exit);
+
+MODULE_AUTHOR("Kyungmin Park<kyungmin.park@samsung.com>");
+MODULE_DESCRIPTION("OMAP LED driver");
+MODULE_LICENSE("GPL");