drivers/video/backlight: remove unused aw9364_bl driver

Change-Id: Iaa1b9f28f9cf4fbf94c0239e8e617a227b631bd9
Signed-off-by: Tao Huang <huangtao@rock-chips.com>

2 files changed, 0 insertions, 293 deletions

diff --git a/drivers/video/backlight/aw9364_bl.c b/drivers/video/backlight/aw9364_bl.c
deleted file mode 100755
index cf3d9b35a76c..000000000000
--- a/drivers/video/backlight/aw9364_bl.c
+++ /dev/null
@@ -1,280 +0,0 @@
-/*
- * Backlight driver for Wolfson Microelectronics WM831x PMICs
- *
- * Copyright 2009 Wolfson Microelectonics plc
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/platform_device.h>
-#include <linux/fb.h>
-#include <linux/backlight.h>
-#include <linux/slab.h>
-#include <mach/gpio.h>
-#ifdef CONFIG_HAS_EARLYSUSPEND
-#include <linux/earlysuspend.h>
-#endif
-#include <linux/delay.h>
-#include <linux/ktime.h>
-#include "aw9364_bl.h"
-
-/*
- * Debug
- */
-#if 0
-#define DBG(x...)	printk(KERN_INFO x)
-#else
-#define DBG(x...)
-#endif
-
-#define BL_SET   255
-#define BL_INIT_VALUE 102
-struct aw9364_backlight_data {
-	int pin_en;
-	int current_brightness;
-#ifdef CONFIG_HAS_EARLYSUSPEND
-	struct 	early_suspend early_suspend;
-	struct delayed_work work;
-	int suspend_flag;
-	int shutdown_flag;
-#endif
-
-	spinlock_t bl_lock;
-};
-
-#ifdef CONFIG_HAS_EARLYSUSPEND
-static struct backlight_device *g_aw9364_bl;
-static struct aw9364_backlight_data *g_aw9364_data;
-#endif
-
-static int aw9364_backlight_set(struct backlight_device *bl, int brightness)
-{
-	struct aw9364_backlight_data *data = bl_get_data(bl);
-	int i,num_clk, num_clk_to, num_clk_from;
-	unsigned long flags;
-		
-	brightness = brightness & 0xff; //0-256
-
-	num_clk_from = 16 -(data->current_brightness>>4);	
-	num_clk_to = 16 -(brightness>>4);
-	num_clk = (16 + num_clk_to - num_clk_from)%16;
-	
-	
-	if(brightness < 16)
-	{
-		gpio_direction_output(data->pin_en, GPIO_LOW);
-		mdelay(3);
-	}
-	else {
-		spin_lock_irqsave(&data->bl_lock, flags);
-		for(i=0; i<num_clk; i++)	//the wave should not be intterupted
-		{
-			gpio_set_value(data->pin_en, GPIO_LOW);	
-			gpio_set_value(data->pin_en, GPIO_HIGH);
-			if(i==0)
-			udelay(30);	
-		}
-		spin_unlock_irqrestore(&data->bl_lock, flags);
-	}
-	
-	DBG("%s:current_bl=%d,bl=%d,num_clk_to=%d,num_clk_from=%d,num_clk=%d\n",__FUNCTION__,
-		data->current_brightness,brightness,num_clk_to,num_clk_from,num_clk);
-
-	if((num_clk) || (brightness < 16))
-	data->current_brightness = brightness;
-	
-	return 0;
-	
-}
-
-
-static int aw9364_backlight_update_status(struct backlight_device *bl)
-{
-
-	int brightness = bl->props.brightness;
-	
-	if(g_aw9364_data->suspend_flag == 1)
-		brightness = 0;
-	
-	if (g_aw9364_data->shutdown_flag == 1)
-		brightness = 0;
-		
-	if (bl->props.power != FB_BLANK_UNBLANK)
-		brightness = 0;
-
-	if (bl->props.fb_blank != FB_BLANK_UNBLANK)
-		brightness = 0;
-
-	if (bl->props.state & BL_CORE_SUSPENDED)
-		brightness = 0;
-
-	DBG("backlight brightness=%d\n", brightness);
-
-	return aw9364_backlight_set(bl, brightness);
-}
-
-static int aw9364_backlight_get_brightness(struct backlight_device *bl)
-{
-	struct aw9364_backlight_data *data = bl_get_data(bl);
-	return data->current_brightness;
-}
-
-static struct backlight_ops aw9364_backlight_ops = {
-	.options = BL_CORE_SUSPENDRESUME,
-	.update_status	= aw9364_backlight_update_status,
-	.get_brightness	= aw9364_backlight_get_brightness,
-};
-#ifdef CONFIG_HAS_EARLYSUSPEND
-static void aw9364_bl_work(struct work_struct *work)
-{
-	//struct aw9364_backlight_data *aw9364_data = container_of(work, struct aw9364_backlight_data,
-						   //work.work);
-	backlight_update_status(g_aw9364_bl);
-}
-
-static void aw9364_bl_suspend(struct early_suspend *h)
-{
-	struct aw9364_backlight_data *aw9364_data;
-	aw9364_data = container_of(h, struct aw9364_backlight_data, early_suspend);
-	aw9364_data->suspend_flag = 1;
-
-	schedule_delayed_work(&aw9364_data->work, msecs_to_jiffies(100));		
-}
-
-
-static void aw9364_bl_resume(struct early_suspend *h)
-{
-	struct aw9364_backlight_data *aw9364_data;
-	aw9364_data = container_of(h, struct aw9364_backlight_data, early_suspend);
-	aw9364_data->suspend_flag = 0;
-
-	schedule_delayed_work(&aw9364_data->work, msecs_to_jiffies(100));
-	
-}
-
-#endif
-
-
-int rk29_backlight_ctrl(int open)
-{
-	if(open)
-		g_aw9364_data->suspend_flag = 0;
-	else
-		g_aw9364_data->suspend_flag = 1;
-
-	backlight_update_status(g_aw9364_bl);
-	return 0;
-}
-
-static int aw9364_backlight_probe(struct platform_device *pdev)
-{
-	struct aw9364_backlight_data *data;
-	struct aw9364_platform_data *pdata = pdev->dev.platform_data;
-	struct backlight_device *bl;
-
-	data = kzalloc(sizeof(*data), GFP_KERNEL);
-	if (data == NULL)
-		return -ENOMEM;
-	
-	if(pdata && pdata->io_init)
-	pdata->io_init();
-
-	data->current_brightness = 0;
-	data->pin_en = pdata->pin_en;
-
-
-	bl = backlight_device_register("wm831x", &pdev->dev, data,
-				       &aw9364_backlight_ops, NULL);
-	if (IS_ERR(bl)) {
-		dev_err(&pdev->dev, "failed to register backlight\n");
-		kfree(data);
-		return PTR_ERR(bl);
-	}
-
-	bl->props.brightness = BL_INIT_VALUE;
-	bl->props.max_brightness= BL_SET;
-
-	if(data && data->pin_en)
-	gpio_request(data->pin_en, NULL);
-	else
-	return -1;
-
-	spin_lock_init(&data->bl_lock);	
-
-	platform_set_drvdata(pdev, bl);
-
-#ifdef CONFIG_HAS_EARLYSUSPEND	
-	data->early_suspend.level = ~0x0;
-	data->early_suspend.suspend = aw9364_bl_suspend;
-	data->early_suspend.resume = aw9364_bl_resume;
-	register_early_suspend(&data->early_suspend);
-	INIT_DELAYED_WORK(&data->work, aw9364_bl_work);
-	g_aw9364_bl = bl;
-	g_aw9364_data = data;
-#endif
-
-	gpio_direction_output(data->pin_en, GPIO_LOW);
-	mdelay(3);
-
-	backlight_update_status(bl);
-	schedule_delayed_work(&data->work, msecs_to_jiffies(100));
-
-	printk("%s\n",__FUNCTION__);
-
-	return 0;
-}
-
-static int aw9364_backlight_remove(struct platform_device *pdev)
-{
-	struct backlight_device *bl = platform_get_drvdata(pdev);
-	struct aw9364_backlight_data *data = bl_get_data(bl);
-
-	backlight_device_unregister(bl);
-#ifdef CONFIG_HAS_EARLYSUSPEND
-	unregister_early_suspend(&data->early_suspend);
-#endif 
-	kfree(data);
-	return 0;
-}
-
-static void aw9364_backlight_shutdown(struct platform_device *pdev)
-{
-	struct backlight_device *bl = platform_get_drvdata(pdev);
-	struct aw9364_backlight_data *data = bl_get_data(bl);
-	
-	printk("%s\n",__FUNCTION__);
-	data->shutdown_flag = 1;
-	aw9364_backlight_update_status(bl);
-	return;
-}
-
-static struct platform_driver aw9364_backlight_driver = {
-	.driver		= {
-		.name	= "aw9364_backlight",
-		.owner	= THIS_MODULE,
-	},
-	.probe		= aw9364_backlight_probe,
-	.remove		= aw9364_backlight_remove,
-	.shutdown	= aw9364_backlight_shutdown,
-};
-
-static int __init aw9364_backlight_init(void)
-{
-	return platform_driver_register(&aw9364_backlight_driver);
-}
-module_init(aw9364_backlight_init);
-
-static void __exit aw9364_backlight_exit(void)
-{
-	platform_driver_unregister(&aw9364_backlight_driver);
-}
-module_exit(aw9364_backlight_exit);
-
-MODULE_DESCRIPTION("Backlight Driver for AW9364");
-MODULE_AUTHOR("luo wei <lw@rock-chips.com");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:aw9364-backlight");
diff --git a/drivers/video/backlight/aw9364_bl.h b/drivers/video/backlight/aw9364_bl.h
deleted file mode 100644
index a802d096038b..000000000000
--- a/drivers/video/backlight/aw9364_bl.h
+++ /dev/null
@@ -1,13 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-

-#ifndef __DRIVERS_TOUCHSCREEN_AW9364_TS_H

-#define __DRIVERS_TOUCHSCREEN_AW9364_TS_H

-

-struct aw9364_platform_data {

-	int pin_en;

-	int current_brightness;

-	int (*io_init)(void);

-	int (*io_deinit)(void);

-};

-#endif

-