1 files changed, 0 insertions, 220 deletions
diff --git a/ANDROID_3.4.5/arch/powerpc/platforms/powermac/backlight.c b/ANDROID_3.4.5/arch/powerpc/platforms/powermac/backlight.c
deleted file mode 100644
index a00096b1..00000000
--- a/ANDROID_3.4.5/arch/powerpc/platforms/powermac/backlight.c
+++ /dev/null
@@ -1,220 +0,0 @@
-/*
- * Miscellaneous procedures for dealing with the PowerMac hardware.
- * Contains support for the backlight.
- *
- *   Copyright (C) 2000 Benjamin Herrenschmidt
- *   Copyright (C) 2006 Michael Hanselmann <linux-kernel@hansmi.ch>
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/fb.h>
-#include <linux/backlight.h>
-#include <linux/adb.h>
-#include <linux/pmu.h>
-#include <linux/atomic.h>
-#include <linux/export.h>
-#include <asm/prom.h>
-#include <asm/backlight.h>
-
-#define OLD_BACKLIGHT_MAX 15
-
-static void pmac_backlight_key_worker(struct work_struct *work);
-static void pmac_backlight_set_legacy_worker(struct work_struct *work);
-
-static DECLARE_WORK(pmac_backlight_key_work, pmac_backlight_key_worker);
-static DECLARE_WORK(pmac_backlight_set_legacy_work, pmac_backlight_set_legacy_worker);
-
-/* Although these variables are used in interrupt context, it makes no sense to
- * protect them. No user is able to produce enough key events per second and
- * notice the errors that might happen.
- */
-static int pmac_backlight_key_queued;
-static int pmac_backlight_set_legacy_queued;
-
-/* The via-pmu code allows the backlight to be grabbed, in which case the
- * in-kernel control of the brightness needs to be disabled. This should
- * only be used by really old PowerBooks.
- */
-static atomic_t kernel_backlight_disabled = ATOMIC_INIT(0);
-
-/* Protect the pmac_backlight variable below.
-   You should hold this lock when using the pmac_backlight pointer to
-   prevent its potential removal. */
-DEFINE_MUTEX(pmac_backlight_mutex);
-
-/* Main backlight storage
- *
- * Backlight drivers in this variable are required to have the "ops"
- * attribute set and to have an update_status function.
- *
- * We can only store one backlight here, but since Apple laptops have only one
- * internal display, it doesn't matter. Other backlight drivers can be used
- * independently.
- *
- */
-struct backlight_device *pmac_backlight;
-
-int pmac_has_backlight_type(const char *type)
-{
-	struct device_node* bk_node = of_find_node_by_name(NULL, "backlight");
-
-	if (bk_node) {
-		const char *prop = of_get_property(bk_node,
-				"backlight-control", NULL);
-		if (prop && strncmp(prop, type, strlen(type)) == 0) {
-			of_node_put(bk_node);
-			return 1;
-		}
-		of_node_put(bk_node);
-	}
-
-	return 0;
-}
-
-int pmac_backlight_curve_lookup(struct fb_info *info, int value)
-{
-	int level = (FB_BACKLIGHT_LEVELS - 1);
-
-	if (info && info->bl_dev) {
-		int i, max = 0;
-
-		/* Look for biggest value */
-		for (i = 0; i < FB_BACKLIGHT_LEVELS; i++)
-			max = max((int)info->bl_curve[i], max);
-
-		/* Look for nearest value */
-		for (i = 0; i < FB_BACKLIGHT_LEVELS; i++) {
-			int diff = abs(info->bl_curve[i] - value);
-			if (diff < max) {
-				max = diff;
-				level = i;
-			}
-		}
-
-	}
-
-	return level;
-}
-
-static void pmac_backlight_key_worker(struct work_struct *work)
-{
-	if (atomic_read(&kernel_backlight_disabled))
-		return;
-
-	mutex_lock(&pmac_backlight_mutex);
-	if (pmac_backlight) {
-		struct backlight_properties *props;
-		int brightness;
-
-		props = &pmac_backlight->props;
-
-		brightness = props->brightness +
-			((pmac_backlight_key_queued?-1:1) *
-			 (props->max_brightness / 15));
-
-		if (brightness < 0)
-			brightness = 0;
-		else if (brightness > props->max_brightness)
-			brightness = props->max_brightness;
-
-		props->brightness = brightness;
-		backlight_update_status(pmac_backlight);
-	}
-	mutex_unlock(&pmac_backlight_mutex);
-}
-
-/* This function is called in interrupt context */
-void pmac_backlight_key(int direction)
-{
-	if (atomic_read(&kernel_backlight_disabled))
-		return;
-
-	/* we can receive multiple interrupts here, but the scheduled work
-	 * will run only once, with the last value
-	 */
-	pmac_backlight_key_queued = direction;
-	schedule_work(&pmac_backlight_key_work);
-}
-
-static int __pmac_backlight_set_legacy_brightness(int brightness)
-{
-	int error = -ENXIO;
-
-	mutex_lock(&pmac_backlight_mutex);
-	if (pmac_backlight) {
-		struct backlight_properties *props;
-
-		props = &pmac_backlight->props;
-		props->brightness = brightness *
-			(props->max_brightness + 1) /
-			(OLD_BACKLIGHT_MAX + 1);
-
-		if (props->brightness > props->max_brightness)
-			props->brightness = props->max_brightness;
-		else if (props->brightness < 0)
-			props->brightness = 0;
-
-		backlight_update_status(pmac_backlight);
-
-		error = 0;
-	}
-	mutex_unlock(&pmac_backlight_mutex);
-
-	return error;
-}
-
-static void pmac_backlight_set_legacy_worker(struct work_struct *work)
-{
-	if (atomic_read(&kernel_backlight_disabled))
-		return;
-
-	__pmac_backlight_set_legacy_brightness(pmac_backlight_set_legacy_queued);
-}
-
-/* This function is called in interrupt context */
-void pmac_backlight_set_legacy_brightness_pmu(int brightness) {
-	if (atomic_read(&kernel_backlight_disabled))
-		return;
-
-	pmac_backlight_set_legacy_queued = brightness;
-	schedule_work(&pmac_backlight_set_legacy_work);
-}
-
-int pmac_backlight_set_legacy_brightness(int brightness)
-{
-	return __pmac_backlight_set_legacy_brightness(brightness);
-}
-
-int pmac_backlight_get_legacy_brightness()
-{
-	int result = -ENXIO;
-
-	mutex_lock(&pmac_backlight_mutex);
-	if (pmac_backlight) {
-		struct backlight_properties *props;
-
-		props = &pmac_backlight->props;
-
-		result = props->brightness *
-			(OLD_BACKLIGHT_MAX + 1) /
-			(props->max_brightness + 1);
-	}
-	mutex_unlock(&pmac_backlight_mutex);
-
-	return result;
-}
-
-void pmac_backlight_disable()
-{
-	atomic_inc(&kernel_backlight_disabled);
-}
-
-void pmac_backlight_enable()
-{
-	atomic_dec(&kernel_backlight_disabled);
-}
-
-EXPORT_SYMBOL_GPL(pmac_backlight);
-EXPORT_SYMBOL_GPL(pmac_backlight_mutex);
-EXPORT_SYMBOL_GPL(pmac_has_backlight_type);