path: root/recipes-kernel/linux/linux-handheld-4.0/locomo/0013-video-backlight-drop-old-locomo-bl-lcd-driver.patch

From 19c650358a308711b8f7e6e46acf778596f8c45a Mon Sep 17 00:00:00 2001
From: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Date: Thu, 5 Dec 2013 00:07:17 +0400
Subject: [PATCH 13/20] video: backlight: drop old locomo bl/lcd driver

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@gmail.com>
---
 drivers/video/backlight/locomolcd.c | 255 ------------------------------------
 1 file changed, 255 deletions(-)
 delete mode 100644 drivers/video/backlight/locomolcd.c

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@cs.wisc.edu>
- * Maintainer: Pavel Machek <pavel@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@cs.wisc.edu>, Pavel Machek <pavel@ucw.cz>");
-MODULE_DESCRIPTION("Collie LCD driver");
-MODULE_LICENSE("GPL");
-- 
1.9.1