[PATCH v5 16/17] video: backlight: drop old locomo bl/lcd driver

[Lee Jones]

On Mon, 08 Jun 2015, Dmitry Eremin-Solenikov wrote:

> Old locomolcd driver is now completely obsolete by new locomo_bl and
> locomo_lcd drivers, so let's drop it.
> 
> Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov at gmail.com>
> ---
>  drivers/video/backlight/locomolcd.c | 255 ------------------------------------
>  1 file changed, 255 deletions(-)
>  delete mode 100644 drivers/video/backlight/locomolcd.c

Acked-by: Lee Jones <lee.jones at linaro.org>

> diff --git a/drivers/video/backlight/locomolcd.c b/drivers/video/backlight/locomolcd.c
> deleted file mode 100644
> index 6c3ec42..0000000
> --- a/drivers/video/backlight/locomolcd.c
> +++ /dev/null
> @@ -1,255 +0,0 @@
> -/*
> - * Backlight control code for Sharp Zaurus SL-5500
> - *
> - * Copyright 2005 John Lenz <lenz at cs.wisc.edu>
> - * Maintainer: Pavel Machek <pavel at ucw.cz> (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 <linux/module.h>
> -#include <linux/init.h>
> -#include <linux/delay.h>
> -#include <linux/device.h>
> -#include <linux/interrupt.h>
> -#include <linux/fb.h>
> -#include <linux/backlight.h>
> -
> -#include <asm/hardware/locomo.h>
> -#include <asm/irq.h>
> -#include <asm/mach/sharpsl_param.h>
> -#include <asm/mach-types.h>
> -
> -#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 <lenz at cs.wisc.edu>, Pavel Machek <pavel at ucw.cz>");
> -MODULE_DESCRIPTION("Collie LCD driver");
> -MODULE_LICENSE("GPL");

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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