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Date: Wed, 16 Nov 2011 12:13:35 +0100
From: Paul Bolle <pebolle@...cali.nl>
To: Richard Purdie <rpurdie@...ys.net>
Cc: Thierry Reding <thierry.reding@...onic-design.de>,
Wim Van Sebroeck <wim@...ana.be>,
linux-kernel@...r.kernel.org
Subject: [PATCH] backlight: drop ADX backlight device support
Support for the Avionic Design Xanthos backlight device got added in
commit 3b96ea9ef8. 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. Drop it.
Acked-by: Thierry Reding <thierry.reding@...onic-design.de>
Signed-off-by: Paul Bolle <pebolle@...cali.nl>
---
0) Thierry Reding acked the removal of this driver beforehand (see
https://lkml.org/lkml/2011/11/15/92 ) and should complain loudly if he
doesn't approve of the way I do that in this patch! (Wim Van Sebroeck
will remove the watchdog driver.)
1) "make menuconfig" tested and "git grep" tested only. Does that
suffice?
drivers/video/backlight/Kconfig | 8 --
drivers/video/backlight/Makefile | 1 -
drivers/video/backlight/adx_bl.c | 182 --------------------------------------
3 files changed, 0 insertions(+), 191 deletions(-)
delete mode 100644 drivers/video/backlight/adx_bl.c
diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig
index 278aeaa..681b369 100644
--- 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 fdd1fc4..af5cf65 100644
--- 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
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@...onic-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@...onic-design.de>");
-MODULE_DESCRIPTION("Avionic Design Xanthos Backlight Driver");
-MODULE_LICENSE("GPL v2");
--
1.7.4.4
--
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