Initial Contribution
msm-2.6.38: tag AU_LINUX_ANDROID_GINGERBREAD.02.03.04.00.142
Signed-off-by: Bryan Huntsman <bryanh@codeaurora.org>
diff --git a/drivers/leds/leds-msm-pmic.c b/drivers/leds/leds-msm-pmic.c
new file mode 100644
index 0000000..b9c6a53
--- /dev/null
+++ b/drivers/leds/leds-msm-pmic.c
@@ -0,0 +1,105 @@
+/*
+ * leds-msm-pmic.c - MSM PMIC LEDs driver.
+ *
+ * Copyright (c) 2009, Code Aurora Forum. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/leds.h>
+
+#include <mach/pmic.h>
+
+#define MAX_KEYPAD_BL_LEVEL 16
+
+static void msm_keypad_bl_led_set(struct led_classdev *led_cdev,
+ enum led_brightness value)
+{
+ int ret;
+
+ ret = pmic_set_led_intensity(LED_KEYPAD, value / MAX_KEYPAD_BL_LEVEL);
+ if (ret)
+ dev_err(led_cdev->dev, "can't set keypad backlight\n");
+}
+
+static struct led_classdev msm_kp_bl_led = {
+ .name = "keyboard-backlight",
+ .brightness_set = msm_keypad_bl_led_set,
+ .brightness = LED_OFF,
+};
+
+static int msm_pmic_led_probe(struct platform_device *pdev)
+{
+ int rc;
+
+ rc = led_classdev_register(&pdev->dev, &msm_kp_bl_led);
+ if (rc) {
+ dev_err(&pdev->dev, "unable to register led class driver\n");
+ return rc;
+ }
+ msm_keypad_bl_led_set(&msm_kp_bl_led, LED_OFF);
+ return rc;
+}
+
+static int __devexit msm_pmic_led_remove(struct platform_device *pdev)
+{
+ led_classdev_unregister(&msm_kp_bl_led);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int msm_pmic_led_suspend(struct platform_device *dev,
+ pm_message_t state)
+{
+ led_classdev_suspend(&msm_kp_bl_led);
+
+ return 0;
+}
+
+static int msm_pmic_led_resume(struct platform_device *dev)
+{
+ led_classdev_resume(&msm_kp_bl_led);
+
+ return 0;
+}
+#else
+#define msm_pmic_led_suspend NULL
+#define msm_pmic_led_resume NULL
+#endif
+
+static struct platform_driver msm_pmic_led_driver = {
+ .probe = msm_pmic_led_probe,
+ .remove = __devexit_p(msm_pmic_led_remove),
+ .suspend = msm_pmic_led_suspend,
+ .resume = msm_pmic_led_resume,
+ .driver = {
+ .name = "pmic-leds",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init msm_pmic_led_init(void)
+{
+ return platform_driver_register(&msm_pmic_led_driver);
+}
+module_init(msm_pmic_led_init);
+
+static void __exit msm_pmic_led_exit(void)
+{
+ platform_driver_unregister(&msm_pmic_led_driver);
+}
+module_exit(msm_pmic_led_exit);
+
+MODULE_DESCRIPTION("MSM PMIC LEDs driver");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:pmic-leds");