1 files changed, 144 insertions, 0 deletions
diff --git a/drivers/video/backlight/mxc_msp430_fl.c b/drivers/video/backlight/mxc_msp430_fl.c
new file mode 100755
index 00000000..f692f319
--- /dev/null
+++ b/drivers/video/backlight/mxc_msp430_fl.c
@@ -0,0 +1,144 @@
+/*
+ * Copyright 2008-2011 Freescale Semiconductor, Inc. All Rights Reserved.
+ */
+
+/*
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <linux/fb.h>
+#include <linux/backlight.h>
+
+#include <linux/pmic_light.h>
+#include <linux/pmic_external.h>
+
+/* workaround for atlas hot issue */
+#define MXC_MAX_INTENSITY 	100
+#define MXC_DEFAULT_INTENSITY 	0
+
+#define MXC_INTENSITY_OFF 	0
+
+struct mxcfl_dev_data {
+	int intensity;
+	int suspend;
+};
+
+extern int fl_set_percentage(int iFL_Percentage);
+extern int FL_suspend(void);
+static int mxcfl_set_intensity(struct backlight_device *bd)
+{
+	int brightness = bd->props.brightness;
+	struct mxcfl_dev_data *devdata = dev_get_drvdata(&bd->dev);
+
+	fl_set_percentage (brightness);
+	devdata->intensity = brightness;
+
+	return 0;
+}
+
+static int mxcfl_get_intensity(struct backlight_device *bd)
+{
+	struct mxcfl_dev_data *devdata = dev_get_drvdata(&bd->dev);
+	return devdata->intensity;
+}
+
+static int mxcfl_check_fb(struct backlight_device *bldev, struct fb_info *info)
+{
+	return 0;
+}
+
+static struct backlight_ops bl_ops;
+
+static int __devinit mxcfl_probe(struct platform_device *pdev)
+{
+	int ret = 0;
+	struct backlight_device *bd;
+	struct mxcfl_dev_data *devdata;
+	struct backlight_properties props;
+	pmic_version_t pmic_version;
+
+	devdata = kzalloc(sizeof(struct mxcfl_dev_data), GFP_KERNEL);
+	if (!devdata)
+		return -ENOMEM;
+
+	bl_ops.check_fb = mxcfl_check_fb;
+	bl_ops.get_brightness = mxcfl_get_intensity;
+	bl_ops.update_status = mxcfl_set_intensity;
+	memset(&props, 0, sizeof(struct backlight_properties));
+	props.max_brightness = MXC_MAX_INTENSITY;
+ 	props.type = BACKLIGHT_RAW;
+	bd = backlight_device_register(dev_name(&pdev->dev), &pdev->dev, devdata,
+				       &bl_ops, &props);
+	if (IS_ERR(bd)) {
+		ret = PTR_ERR(bd);
+		goto err0;
+	}
+
+	platform_set_drvdata(pdev, bd);
+	bd->props.brightness = MXC_DEFAULT_INTENSITY;
+	backlight_update_status(bd);
+	pr_debug("MSP430 frontlight probed successfully\n");
+	return 0;
+
+      err0:
+	kfree(devdata);
+	return ret;
+}
+
+static int mxcfl_remove(struct platform_device *pdev)
+{
+	struct backlight_device *bd = platform_get_drvdata(pdev);
+	struct mxcfl_dev_data *devdata = dev_get_drvdata(&bd->dev);
+
+	kfree(devdata);
+	backlight_device_unregister(bd);
+	return 0;
+}
+
+static int mxcfl_suspend(struct platform_device *pdev, pm_message_t state)
+{
+	return FL_suspend ();
+}
+
+static int mxcfl_resume(struct platform_device *pdev)
+{
+	return 0;
+}
+
+static struct platform_driver mxcfl_driver = {
+	.probe = mxcfl_probe,
+	.remove = mxcfl_remove,
+	.suspend = mxcfl_suspend,
+	.resume = mxcfl_resume,
+	.driver = {
+		   .name = "mxc_msp430_fl",
+		   },
+};
+
+static int __init mxcfl_init(void)
+{
+	return platform_driver_register(&mxcfl_driver);
+}
+
+static void __exit mxcfl_exit(void)
+{
+	platform_driver_unregister(&mxcfl_driver);
+}
+
+module_init(mxcfl_init);
+module_exit(mxcfl_exit);
+
+MODULE_DESCRIPTION("MSP430 Frontlight Driver");
+MODULE_AUTHOR("Netronix, Inc.");
+MODULE_LICENSE("GPL");