litmus-rt.git - The LITMUS^RT kernel.

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author	Ralf Baechle <ralf@linux-mips.org>	2012-07-12 08:06:46 -0400
committer	Ralf Baechle <ralf@linux-mips.org>	2013-10-29 16:24:55 -0400
commit	03b94e2ec4adfeb6a2734a265fe8affa68a51a41 (patch)
tree	a1e4138d6d744f64c455491b33f09935b7130a92 /arch/mips/power/hibernate.S
parent	43dec43069d2d1064a57f159e02e2ff99ce75ff3 (diff)

MIPS: 64-bit: Mark native syscall table as data object.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Diffstat (limited to 'arch/mips/power/hibernate.S')

0 files changed, 0 insertions, 0 deletions

/* * Backlight Driver for HP Jornada 680 * * Copyright (c) 2005 Andriy Skulysh * * Based on Sharp's Corgi Backlight Driver * * 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. */ #include <linux/module.h> #include <linux/kernel.h> #include <linux/init.h> #include <linux/platform_device.h> #include <linux/spinlock.h> #include <linux/fb.h> #include <linux/backlight.h> #include <asm/cpu/dac.h> #include <asm/hp6xx/hp6xx.h> #include <asm/hd64461/hd64461.h> #define HP680_MAX_INTENSITY 255 #define HP680_DEFAULT_INTENSITY 10 static int hp680bl_suspended; static int current_intensity = 0; static spinlock_t bl_lock = SPIN_LOCK_UNLOCKED; static struct backlight_device *hp680_backlight_device; static void hp680bl_send_intensity(struct backlight_device *bd) { unsigned long flags; u16 v; int intensity = bd->props->brightness; if (bd->props->power != FB_BLANK_UNBLANK) intensity = 0; if (bd->props->fb_blank != FB_BLANK_UNBLANK) intensity = 0; if (hp680bl_suspended) intensity = 0; spin_lock_irqsave(&bl_lock, flags); if (intensity && current_intensity == 0) { sh_dac_enable(DAC_LCD_BRIGHTNESS); v = inw(HD64461_GPBDR); v &= ~HD64461_GPBDR_LCDOFF; outw(v, HD64461_GPBDR); sh_dac_output(255-(u8)intensity, DAC_LCD_BRIGHTNESS); } else if (intensity == 0 && current_intensity != 0) { sh_dac_output(255-(u8)intensity, DAC_LCD_BRIGHTNESS); sh_dac_disable(DAC_LCD_BRIGHTNESS); v = inw(HD64461_GPBDR); v |= HD64461_GPBDR_LCDOFF; outw(v, HD64461_GPBDR); } else if (intensity) { sh_dac_output(255-(u8)intensity, DAC_LCD_BRIGHTNESS); } spin_unlock_irqrestore(&bl_lock, flags); current_intensity = intensity; } #ifdef CONFIG_PM static int hp680bl_suspend(struct platform_device *dev, pm_message_t state) { hp680bl_suspended = 1; hp680bl_send_intensity(hp680_backlight_device); return 0; } static int hp680bl_resume(struct platform_device *dev) { hp680bl_suspended = 0; hp680bl_send_intensity(hp680_backlight_device); return 0; } #else #define hp680bl_suspend NULL #define hp680bl_resume NULL #endif static int hp680bl_set_intensity(struct backlight_device *bd) { hp680bl_send_intensity(bd); return 0; } static int hp680bl_get_intensity(struct backlight_device *bd) { return current_intensity; } static struct backlight_properties hp680bl_data = { .owner = THIS_MODULE, .max_brightness = HP680_MAX_INTENSITY, .get_brightness = hp680bl_get_intensity, .update_status = hp680bl_set_intensity, }; static int __init hp680bl_probe(struct platform_device *dev) { hp680_backlight_device = backlight_device_register ("hp680-bl", NULL, &hp680bl_data); if (IS_ERR (hp680_backlight_device)) return PTR_ERR (hp680_backlight_device); hp680_backlight_device->props->brightness = HP680_DEFAULT_INTENSITY; hp680bl_send_intensity(hp680_backlight_device); return 0; } static int hp680bl_remove(struct platform_device *dev) { backlight_device_unregister(hp680_backlight_device); return 0; } static struct platform_driver hp680bl_driver = { .probe = hp680bl_probe, .remove = hp680bl_remove, .suspend = hp680bl_suspend, .resume = hp680bl_resume, .driver = { .name = "hp680-bl", }, }; static struct platform_device *hp680bl_device; static int __init hp680bl_init(void) { int ret; ret = platform_driver_register(&hp680bl_driver); if (!ret) { hp680bl_device = platform_device_alloc("hp680-bl", -1); if (!hp680bl_device) return -ENOMEM; ret = platform_device_add(hp680bl_device); if (ret) { platform_device_put(hp680bl_device); platform_driver_unregister(&hp680bl_driver); } } return ret; } static void __exit hp680bl_exit(void) { platform_device_unregister(hp680bl_device); platform_driver_unregister(&hp680bl_driver); } module_init(hp680bl_init); module_exit(hp680bl_exit); MODULE_AUTHOR("Andriy Skulysh <askulysh@image.kiev.ua>"); MODULE_DESCRIPTION("HP Jornada 680 Backlight Driver"); MODULE_LICENSE("GPL");


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