/* * Backlight control code for Sharp Zaurus SL-5500 * * Copyright 2005 John Lenz * Maintainer: Pavel Machek (unless John wants to :-) * GPL v2 * * This driver assumes single CPU. That's okay, because collie is * slightly old hardware, and no one is going to retrofit second CPU to * old PDA. */ /* LCD power functions */ #include #include #include #include #include #include #include #include #include #include #include #include "../../../arch/arm/mach-sa1100/generic.h" static struct backlight_device *locomolcd_bl_device; static struct locomo_dev *locomolcd_dev; static unsigned long locomolcd_flags; #define LOCOMOLCD_SUSPENDED 0x01 static void locomolcd_on(int comadj) { locomo_gpio_set_dir(locomolcd_dev->dev.parent, LOCOMO_GPIO_LCD_VSHA_ON, 0); locomo_gpio_write(locomolcd_dev->dev.parent, LOCOMO_GPIO_LCD_VSHA_ON, 1); mdelay(2); locomo_gpio_set_dir(locomolcd_dev->dev.parent, LOCOMO_GPIO_LCD_VSHD_ON, 0); locomo_gpio_write(locomolcd_dev->dev.parent, LOCOMO_GPIO_LCD_VSHD_ON, 1); mdelay(2); locomo_m62332_senddata(locomolcd_dev, comadj, 0); mdelay(5); locomo_gpio_set_dir(locomolcd_dev->dev.parent, LOCOMO_GPIO_LCD_VEE_ON, 0); locomo_gpio_write(locomolcd_dev->dev.parent, LOCOMO_GPIO_LCD_VEE_ON, 1); mdelay(10); /* TFTCRST | CPSOUT=0 | CPSEN */ locomo_writel(0x01, locomolcd_dev->mapbase + LOCOMO_TC); /* Set CPSD */ locomo_writel(6, locomolcd_dev->mapbase + LOCOMO_CPSD); /* TFTCRST | CPSOUT=0 | CPSEN */ locomo_writel((0x04 | 0x01), locomolcd_dev->mapbase + LOCOMO_TC); mdelay(10); locomo_gpio_set_dir(locomolcd_dev->dev.parent, LOCOMO_GPIO_LCD_MOD, 0); locomo_gpio_write(locomolcd_dev->dev.parent, LOCOMO_GPIO_LCD_MOD, 1); } static void locomolcd_off(int comadj) { /* TFTCRST=1 | CPSOUT=1 | CPSEN = 0 */ locomo_writel(0x06, locomolcd_dev->mapbase + LOCOMO_TC); mdelay(1); locomo_gpio_write(locomolcd_dev->dev.parent, LOCOMO_GPIO_LCD_VSHA_ON, 0); mdelay(110); locomo_gpio_write(locomolcd_dev->dev.parent, LOCOMO_GPIO_LCD_VEE_ON, 0); mdelay(700); /* TFTCRST=0 | CPSOUT=0 | CPSEN = 0 */ locomo_writel(0, locomolcd_dev->mapbase + LOCOMO_TC); locomo_gpio_write(locomolcd_dev->dev.parent, LOCOMO_GPIO_LCD_MOD, 0); locomo_gpio_write(locomolcd_dev->dev.parent, LOCOMO_GPIO_LCD_VSHD_ON, 0); } void locomolcd_power(int on) { int comadj = sharpsl_param.comadj; unsigned long flags; local_irq_save(flags); if (!locomolcd_dev) { local_irq_restore(flags); return; } /* read comadj */ if (comadj == -1 && machine_is_collie()) comadj = 128; if (comadj == -1 && machine_is_poodle()) comadj = 118; if (on) locomolcd_on(comadj); else locomolcd_off(comadj); local_irq_restore(flags); } EXPORT_SYMBOL(locomolcd_power); static int current_intensity; static int locomolcd_set_intensity(struct backlight_device *bd) { 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 (locomolcd_flags & LOCOMOLCD_SUSPENDED) intensity = 0; switch (intensity) { /* * AC and non-AC are handled differently, * but produce same results in sharp code? */ case 0: locomo_frontlight_set(locomolcd_dev, 0, 0, 161); break; case 1: locomo_frontlight_set(locomolcd_dev, 117, 0, 161); break; case 2: locomo_frontlight_set(locomolcd_dev, 163, 0, 148); break; case 3: locomo_frontlight_set(locomolcd_dev, 194, 0, 161); break; case 4: locomo_frontlight_set(locomolcd_dev, 194, 1, 161); break; default: return -ENODEV; } current_intensity = intensity; return 0; } static int locomolcd_get_intensity(struct backlight_device *bd) { return current_intensity; } static const struct backlight_ops locomobl_data = { .get_brightness = locomolcd_get_intensity, .update_status = locomolcd_set_intensity, }; #ifdef CONFIG_PM_SLEEP static int locomolcd_suspend(struct device *dev) { locomolcd_flags |= LOCOMOLCD_SUSPENDED; locomolcd_set_intensity(locomolcd_bl_device); return 0; } static int locomolcd_resume(struct device *dev) { locomolcd_flags &= ~LOCOMOLCD_SUSPENDED; locomolcd_set_intensity(locomolcd_bl_device); return 0; } #endif static SIMPLE_DEV_PM_OPS(locomolcd_pm_ops, locomolcd_suspend, locomolcd_resume); static int locomolcd_probe(struct locomo_dev *ldev) { struct backlight_properties props; unsigned long flags; local_irq_save(flags); locomolcd_dev = ldev; locomo_gpio_set_dir(ldev->dev.parent, LOCOMO_GPIO_FL_VR, 0); /* * the poodle_lcd_power function is called for the first time * from fs_initcall, which is before locomo is activated. * We need to recall poodle_lcd_power here */ if (machine_is_poodle()) locomolcd_power(1); local_irq_restore(flags); memset(&props, 0, sizeof(struct backlight_properties)); props.type = BACKLIGHT_RAW; props.max_brightness = 4; locomolcd_bl_device = backlight_device_register("locomo-bl", &ldev->dev, NULL, &locomobl_data, &props); if (IS_ERR(locomolcd_bl_device)) return PTR_ERR(locomolcd_bl_device); /* Set up frontlight so that screen is readable */ locomolcd_bl_device->props.brightness = 2; locomolcd_set_intensity(locomolcd_bl_device); return 0; } static int locomolcd_remove(struct locomo_dev *dev) { unsigned long flags; locomolcd_bl_device->props.brightness = 0; locomolcd_bl_device->props.power = 0; locomolcd_set_intensity(locomolcd_bl_device); backlight_device_unregister(locomolcd_bl_device); local_irq_save(flags); locomolcd_dev = NULL; local_irq_restore(flags); return 0; } static struct locomo_driver poodle_lcd_driver = { .drv = { .name = "locomo-backlight", .pm = &locomolcd_pm_ops, }, .devid = LOCOMO_DEVID_BACKLIGHT, .probe = locomolcd_probe, .remove = locomolcd_remove, }; static int __init locomolcd_init(void) { return locomo_driver_register(&poodle_lcd_driver); } static void __exit locomolcd_exit(void) { locomo_driver_unregister(&poodle_lcd_driver); } module_init(locomolcd_init); module_exit(locomolcd_exit); MODULE_AUTHOR("John Lenz , Pavel Machek "); MODULE_DESCRIPTION("Collie LCD driver"); MODULE_LICENSE("GPL"); ck
commit d32932d02e18 removed the irq_retrigger callback from the IO-APIC chip and did not add it to the new IO-APIC-IR irq chip. Unfortunately the software resend fallback is not enabled on X86, so edge interrupts which are received during the lazy disabled state of the interrupt line are not retriggered and therefor lost. Restore the callbacks. [ tglx: Massaged changelog ] Fixes: d32932d02e18 ("x86/irq: Convert IOAPIC to use hierarchical irqdomain interfaces") Signed-off-by: Ruslan Ruslichenko <rruslich@cisco.com> Cc: xe-linux-external@cisco.com Cc: stable@vger.kernel.org Link: http://lkml.kernel.org/r/1484662432-13580-1-git-send-email-rruslich@cisco.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/net/dn.h')