1 // SPDX-License-Identifier: GPL-2.0-only
3  * Backlight control code for Sharp Zaurus SL-5500
6  * Maintainer: Pavel Machek <[email protected]> (unless John wants to :-)
13 /* LCD power functions */
25 #include <asm/mach-types.h>
27 #include "../../../arch/arm/mach-sa1100/generic.h"
36 	locomo_gpio_set_dir(locomolcd_dev->dev.parent, LOCOMO_GPIO_LCD_VSHA_ON, 0);  in locomolcd_on()
37 	locomo_gpio_write(locomolcd_dev->dev.parent, LOCOMO_GPIO_LCD_VSHA_ON, 1);  in locomolcd_on()
40 	locomo_gpio_set_dir(locomolcd_dev->dev.parent, LOCOMO_GPIO_LCD_VSHD_ON, 0);  in locomolcd_on()
41 	locomo_gpio_write(locomolcd_dev->dev.parent, LOCOMO_GPIO_LCD_VSHD_ON, 1);  in locomolcd_on()
47 	locomo_gpio_set_dir(locomolcd_dev->dev.parent, LOCOMO_GPIO_LCD_VEE_ON, 0);  in locomolcd_on()
48 	locomo_gpio_write(locomolcd_dev->dev.parent, LOCOMO_GPIO_LCD_VEE_ON, 1);  in locomolcd_on()
52 	locomo_writel(0x01, locomolcd_dev->mapbase + LOCOMO_TC);  in locomolcd_on()
55 	locomo_writel(6, locomolcd_dev->mapbase + LOCOMO_CPSD);  in locomolcd_on()
58 	locomo_writel((0x04 | 0x01), locomolcd_dev->mapbase + LOCOMO_TC);  in locomolcd_on()
61 	locomo_gpio_set_dir(locomolcd_dev->dev.parent, LOCOMO_GPIO_LCD_MOD, 0);  in locomolcd_on()
62 	locomo_gpio_write(locomolcd_dev->dev.parent, LOCOMO_GPIO_LCD_MOD, 1);  in locomolcd_on()
68 	locomo_writel(0x06, locomolcd_dev->mapbase + LOCOMO_TC);  in locomolcd_off()
71 	locomo_gpio_write(locomolcd_dev->dev.parent, LOCOMO_GPIO_LCD_VSHA_ON, 0);  in locomolcd_off()
74 	locomo_gpio_write(locomolcd_dev->dev.parent, LOCOMO_GPIO_LCD_VEE_ON, 0);  in locomolcd_off()
78 	locomo_writel(0, locomolcd_dev->mapbase + LOCOMO_TC);  in locomolcd_off()
79 	locomo_gpio_write(locomolcd_dev->dev.parent, LOCOMO_GPIO_LCD_MOD, 0);  in locomolcd_off()
80 	locomo_gpio_write(locomolcd_dev->dev.parent, LOCOMO_GPIO_LCD_VSHD_ON, 0);  in locomolcd_off()
96 	if (comadj == -1 && machine_is_collie())  in locomolcd_power()
119 	 * AC and non-AC are handled differently,  in locomolcd_set_intensity()
138 		return -ENODEV;  in locomolcd_set_intensity()
180 	locomo_gpio_set_dir(ldev->dev.parent, LOCOMO_GPIO_FL_VR, 0);  in locomolcd_probe()
187 	locomolcd_bl_device = backlight_device_register("locomo-bl",  in locomolcd_probe()
188 							&ldev->dev, NULL,  in locomolcd_probe()
195 	locomolcd_bl_device->props.brightness = 2;  in locomolcd_probe()
205 	locomolcd_bl_device->props.brightness = 0;  in locomolcd_remove()
206 	locomolcd_bl_device->props.power = 0;  in locomolcd_remove()
217 		.name	= "locomo-backlight",
239 MODULE_DESCRIPTION("Collie LCD driver");