backlight: remove ADX backlight device support

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>

diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig
index 278aeaa925059673fdcefa7b1c243f5a92b41837..681b36929fe406642756ca6bcd8614422a16aa0c 100644 (file)
--- a/drivers/video/backlight/Kconfig
+++ b/drivers/video/backlight/Kconfig
@@ -280,14 +280,6 @@ config BACKLIGHT_WM831X
          If you have a backlight driven by the ISINK and DCDC of a
          WM831x PMIC say y to enable the backlight driver for it.
 
-config BACKLIGHT_ADX
-       tristate "Avionic Design Xanthos Backlight Driver"
-       depends on ARCH_PXA_ADX
-       default y
-       help
-         Say Y to enable the backlight driver on Avionic Design Xanthos-based
-         boards.
-
 config BACKLIGHT_ADP5520
        tristate "Backlight Driver for ADP5520/ADP5501 using WLED"
        depends on PMIC_ADP5520

diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile
index fdd1fc4b277062333846f4f9cd3ba75855d394a7..af5cf654ec7c5c4dba3a632f0d4fc2867a681112 100644 (file)
--- a/drivers/video/backlight/Makefile
+++ b/drivers/video/backlight/Makefile
@@ -32,7 +32,6 @@ obj-$(CONFIG_BACKLIGHT_APPLE) += apple_bl.o
 obj-$(CONFIG_BACKLIGHT_TOSA)   += tosa_bl.o
 obj-$(CONFIG_BACKLIGHT_SAHARA) += kb3886_bl.o
 obj-$(CONFIG_BACKLIGHT_WM831X) += wm831x_bl.o
-obj-$(CONFIG_BACKLIGHT_ADX)    += adx_bl.o
 obj-$(CONFIG_BACKLIGHT_ADP5520)        += adp5520_bl.o
 obj-$(CONFIG_BACKLIGHT_ADP8860)        += adp8860_bl.o
 obj-$(CONFIG_BACKLIGHT_ADP8870)        += adp8870_bl.o

diff --git a/drivers/video/backlight/adx_bl.c b/drivers/video/backlight/adx_bl.c
deleted file mode 100644 (file)
index c861c41..0000000
--- a/drivers/video/backlight/adx_bl.c
+++ /dev/null
@@ -1,182 +0,0 @@
-/*
- * linux/drivers/video/backlight/adx.c
- *
- * Copyright (C) 2009 Avionic Design GmbH
- *
- * 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.
- *
- * Written by Thierry Reding <thierry.reding@avionic-design.de>
- */
-
-#include <linux/backlight.h>
-#include <linux/fb.h>
-#include <linux/gfp.h>
-#include <linux/io.h>
-#include <linux/module.h>
-#include <linux/platform_device.h>
-
-/* register definitions */
-#define ADX_BACKLIGHT_CONTROL          0x00
-#define ADX_BACKLIGHT_CONTROL_ENABLE   (1 << 0)
-#define ADX_BACKLIGHT_BRIGHTNESS       0x08
-#define ADX_BACKLIGHT_STATUS           0x10
-#define ADX_BACKLIGHT_ERROR            0x18
-
-struct adxbl {
-       void __iomem *base;
-};
-
-static int adx_backlight_update_status(struct backlight_device *bldev)
-{
-       struct adxbl *bl = bl_get_data(bldev);
-       u32 value;
-
-       value = bldev->props.brightness;
-       writel(value, bl->base + ADX_BACKLIGHT_BRIGHTNESS);
-
-       value = readl(bl->base + ADX_BACKLIGHT_CONTROL);
-
-       if (bldev->props.state & BL_CORE_FBBLANK)
-               value &= ~ADX_BACKLIGHT_CONTROL_ENABLE;
-       else
-               value |= ADX_BACKLIGHT_CONTROL_ENABLE;
-
-       writel(value, bl->base + ADX_BACKLIGHT_CONTROL);
-
-       return 0;
-}
-
-static int adx_backlight_get_brightness(struct backlight_device *bldev)
-{
-       struct adxbl *bl = bl_get_data(bldev);
-       u32 brightness;
-
-       brightness = readl(bl->base + ADX_BACKLIGHT_BRIGHTNESS);
-       return brightness & 0xff;
-}
-
-static int adx_backlight_check_fb(struct backlight_device *bldev, struct fb_info *fb)
-{
-       return 1;
-}
-
-static const struct backlight_ops adx_backlight_ops = {
-       .options = 0,
-       .update_status = adx_backlight_update_status,
-       .get_brightness = adx_backlight_get_brightness,
-       .check_fb = adx_backlight_check_fb,
-};
-
-static int __devinit adx_backlight_probe(struct platform_device *pdev)
-{
-       struct backlight_properties props;
-       struct backlight_device *bldev;
-       struct resource *res;
-       struct adxbl *bl;
-       int ret = 0;
-
-       res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-       if (!res) {
-               ret = -ENXIO;
-               goto out;
-       }
-
-       res = devm_request_mem_region(&pdev->dev, res->start,
-                       resource_size(res), res->name);
-       if (!res) {
-               ret = -ENXIO;
-               goto out;
-       }
-
-       bl = devm_kzalloc(&pdev->dev, sizeof(*bl), GFP_KERNEL);
-       if (!bl) {
-               ret = -ENOMEM;
-               goto out;
-       }
-
-       bl->base = devm_ioremap_nocache(&pdev->dev, res->start,
-                       resource_size(res));
-       if (!bl->base) {
-               ret = -ENXIO;
-               goto out;
-       }
-
-       memset(&props, 0, sizeof(struct backlight_properties));
-       props.type = BACKLIGHT_RAW;
-       props.max_brightness = 0xff;
-       bldev = backlight_device_register(dev_name(&pdev->dev), &pdev->dev,
-                                         bl, &adx_backlight_ops, &props);
-       if (IS_ERR(bldev)) {
-               ret = PTR_ERR(bldev);
-               goto out;
-       }
-
-       bldev->props.brightness = 0xff;
-       bldev->props.power = FB_BLANK_UNBLANK;
-
-       platform_set_drvdata(pdev, bldev);
-
-out:
-       return ret;
-}
-
-static int __devexit adx_backlight_remove(struct platform_device *pdev)
-{
-       struct backlight_device *bldev;
-       int ret = 0;
-
-       bldev = platform_get_drvdata(pdev);
-       bldev->props.power = FB_BLANK_UNBLANK;
-       bldev->props.brightness = 0xff;
-       backlight_update_status(bldev);
-       backlight_device_unregister(bldev);
-       platform_set_drvdata(pdev, NULL);
-
-       return ret;
-}
-
-#ifdef CONFIG_PM
-static int adx_backlight_suspend(struct platform_device *pdev,
-               pm_message_t state)
-{
-       return 0;
-}
-
-static int adx_backlight_resume(struct platform_device *pdev)
-{
-       return 0;
-}
-#else
-#define adx_backlight_suspend NULL
-#define adx_backlight_resume NULL
-#endif
-
-static struct platform_driver adx_backlight_driver = {
-       .probe = adx_backlight_probe,
-       .remove = __devexit_p(adx_backlight_remove),
-       .suspend = adx_backlight_suspend,
-       .resume = adx_backlight_resume,
-       .driver = {
-               .name = "adx-backlight",
-               .owner = THIS_MODULE,
-       },
-};
-
-static int __init adx_backlight_init(void)
-{
-       return platform_driver_register(&adx_backlight_driver);
-}
-
-static void __exit adx_backlight_exit(void)
-{
-       platform_driver_unregister(&adx_backlight_driver);
-}
-
-module_init(adx_backlight_init);
-module_exit(adx_backlight_exit);
-
-MODULE_AUTHOR("Thierry Reding <thierry.reding@avionic-design.de>");
-MODULE_DESCRIPTION("Avionic Design Xanthos Backlight Driver");
-MODULE_LICENSE("GPL v2");