diff options
Diffstat (limited to 'drivers/video/backlight/wmt_bl.c')
| -rw-r--r--[-rwxr-xr-x] | drivers/video/backlight/wmt_bl.c | 39 |
1 files changed, 23 insertions, 16 deletions
diff --git a/drivers/video/backlight/wmt_bl.c b/drivers/video/backlight/wmt_bl.c index 97087216..66d02ca7 100755..100644 --- a/drivers/video/backlight/wmt_bl.c +++ b/drivers/video/backlight/wmt_bl.c @@ -1,6 +1,21 @@ -/* - * for backlight control on wmt platform, base on pwm_bl.c - */ +/*++ + linux/drivers/video/backlight/wmt_bl.c + + Copyright (c) 2013 WonderMedia Technologies, Inc. + + This program is free software: you can redistribute it and/or modify it under the + terms of the GNU General Public License as published by the Free Software Foundation, + either version 2 of the License, or (at your option) any later version. + + 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. + You should have received a copy of the GNU General Public License along with + this program. If not, see <http://www.gnu.org/licenses/>. + + WonderMedia Technologies, Inc. + 10F, 529, Chung-Cheng Road, Hsin-Tien, Taipei 231, R.O.C. +--*/ #include <linux/module.h> #include <linux/kernel.h> @@ -24,7 +39,7 @@ static struct { static int backlight_delay = 0; -static struct led_trigger *logo_led; +static struct led_trigger *genesis_led; static BLOCKING_NOTIFIER_HEAD(bl_chain_head); int register_bl_notifier(struct notifier_block *nb) @@ -61,17 +76,9 @@ static void backlight_on(bool on) msleep(backlight_delay); } gpio_direction_output(power.gpio, on ? power.active : !power.active); - led_trigger_event(logo_led, on ? LED_FULL : LED_OFF); - - if (!on) { - /* - * delay 100 ms between 'backlight power off' and 'lcd power off' - * at suspend sequence to avoid to lcd flicker - */ - msleep(100); - } - + led_trigger_event(genesis_led, on ? LED_FULL : LED_OFF); old_state = on; + bl_notifier_call_chain(on ? BL_OPEN : BL_CLOSE); } } @@ -175,14 +182,14 @@ static int __init wmt_bl_init(void) if (rc) return rc; - led_trigger_register_simple("logoled", &logo_led); + led_trigger_register_simple("genesis", &genesis_led); return platform_device_register(&wm8880_device_pwmbl); } static void __exit wmt_bl_exit(void) { - led_trigger_unregister_simple(logo_led); + led_trigger_unregister_simple(genesis_led); platform_device_unregister(&wm8880_device_pwmbl); } |