Support for the Avionic Design Xanthos backlight device got added in
commit 3b96ea9ef8 ("backlight: Add support for the Avionic Design Xanthos
backlight device."). That support depends on ARCH_PXA_ADX. The code that
should have provided that Kconfig symbol never got submitted. It has
never been possible to even build this driver. Remove it.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Acked-by: Thierry Reding <thierry.reding@avionic-design.de>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Wim Van Sebroeck <wim@iguana.be>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
tirimbino
Paul Bolle
13 years ago
committed by
Linus Torvalds
parent
89d07767d0
commit
3ed0c15fd1
@ -1,182 +0,0 @@ |
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/*
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* linux/drivers/video/backlight/adx.c |
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* |
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* Copyright (C) 2009 Avionic Design GmbH |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License version 2 as |
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* published by the Free Software Foundation. |
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* |
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* Written by Thierry Reding <thierry.reding@avionic-design.de> |
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*/ |
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#include <linux/backlight.h> |
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#include <linux/fb.h> |
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#include <linux/gfp.h> |
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#include <linux/io.h> |
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#include <linux/module.h> |
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#include <linux/platform_device.h> |
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/* register definitions */ |
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#define ADX_BACKLIGHT_CONTROL 0x00 |
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#define ADX_BACKLIGHT_CONTROL_ENABLE (1 << 0) |
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#define ADX_BACKLIGHT_BRIGHTNESS 0x08 |
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#define ADX_BACKLIGHT_STATUS 0x10 |
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#define ADX_BACKLIGHT_ERROR 0x18 |
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struct adxbl { |
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void __iomem *base; |
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}; |
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static int adx_backlight_update_status(struct backlight_device *bldev) |
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{ |
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struct adxbl *bl = bl_get_data(bldev); |
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u32 value; |
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value = bldev->props.brightness; |
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writel(value, bl->base + ADX_BACKLIGHT_BRIGHTNESS); |
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value = readl(bl->base + ADX_BACKLIGHT_CONTROL); |
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if (bldev->props.state & BL_CORE_FBBLANK) |
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value &= ~ADX_BACKLIGHT_CONTROL_ENABLE; |
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else |
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value |= ADX_BACKLIGHT_CONTROL_ENABLE; |
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writel(value, bl->base + ADX_BACKLIGHT_CONTROL); |
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return 0; |
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} |
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static int adx_backlight_get_brightness(struct backlight_device *bldev) |
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{ |
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struct adxbl *bl = bl_get_data(bldev); |
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u32 brightness; |
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brightness = readl(bl->base + ADX_BACKLIGHT_BRIGHTNESS); |
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return brightness & 0xff; |
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} |
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static int adx_backlight_check_fb(struct backlight_device *bldev, struct fb_info *fb) |
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{ |
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return 1; |
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} |
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static const struct backlight_ops adx_backlight_ops = { |
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.options = 0, |
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.update_status = adx_backlight_update_status, |
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.get_brightness = adx_backlight_get_brightness, |
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.check_fb = adx_backlight_check_fb, |
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}; |
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static int __devinit adx_backlight_probe(struct platform_device *pdev) |
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{ |
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struct backlight_properties props; |
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struct backlight_device *bldev; |
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struct resource *res; |
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struct adxbl *bl; |
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int ret = 0; |
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res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
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if (!res) { |
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ret = -ENXIO; |
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goto out; |
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} |
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res = devm_request_mem_region(&pdev->dev, res->start, |
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resource_size(res), res->name); |
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if (!res) { |
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ret = -ENXIO; |
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goto out; |
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} |
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bl = devm_kzalloc(&pdev->dev, sizeof(*bl), GFP_KERNEL); |
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if (!bl) { |
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ret = -ENOMEM; |
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goto out; |
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} |
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bl->base = devm_ioremap_nocache(&pdev->dev, res->start, |
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resource_size(res)); |
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if (!bl->base) { |
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ret = -ENXIO; |
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goto out; |
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} |
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memset(&props, 0, sizeof(struct backlight_properties)); |
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props.type = BACKLIGHT_RAW; |
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props.max_brightness = 0xff; |
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bldev = backlight_device_register(dev_name(&pdev->dev), &pdev->dev, |
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bl, &adx_backlight_ops, &props); |
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if (IS_ERR(bldev)) { |
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ret = PTR_ERR(bldev); |
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goto out; |
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} |
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bldev->props.brightness = 0xff; |
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bldev->props.power = FB_BLANK_UNBLANK; |
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platform_set_drvdata(pdev, bldev); |
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out: |
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return ret; |
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} |
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static int __devexit adx_backlight_remove(struct platform_device *pdev) |
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{ |
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struct backlight_device *bldev; |
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int ret = 0; |
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bldev = platform_get_drvdata(pdev); |
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bldev->props.power = FB_BLANK_UNBLANK; |
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bldev->props.brightness = 0xff; |
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backlight_update_status(bldev); |
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backlight_device_unregister(bldev); |
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platform_set_drvdata(pdev, NULL); |
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return ret; |
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} |
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#ifdef CONFIG_PM |
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static int adx_backlight_suspend(struct platform_device *pdev, |
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pm_message_t state) |
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{ |
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return 0; |
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} |
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static int adx_backlight_resume(struct platform_device *pdev) |
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{ |
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return 0; |
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} |
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#else |
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#define adx_backlight_suspend NULL |
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#define adx_backlight_resume NULL |
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#endif |
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static struct platform_driver adx_backlight_driver = { |
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.probe = adx_backlight_probe, |
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.remove = __devexit_p(adx_backlight_remove), |
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.suspend = adx_backlight_suspend, |
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.resume = adx_backlight_resume, |
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.driver = { |
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.name = "adx-backlight", |
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.owner = THIS_MODULE, |
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}, |
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}; |
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static int __init adx_backlight_init(void) |
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{ |
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return platform_driver_register(&adx_backlight_driver); |
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} |
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static void __exit adx_backlight_exit(void) |
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{ |
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platform_driver_unregister(&adx_backlight_driver); |
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} |
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module_init(adx_backlight_init); |
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module_exit(adx_backlight_exit); |
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MODULE_AUTHOR("Thierry Reding <thierry.reding@avionic-design.de>"); |
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MODULE_DESCRIPTION("Avionic Design Xanthos Backlight Driver"); |
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MODULE_LICENSE("GPL v2"); |
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