Revert "IKXCLOCK-4061: power key behavior change"

This reverts commit 58efe519a5477c70a184cdf376520122127f69f0.

Change-Id: I8a80fcb5d7386ac8c74da99aa649ad549d64d3a1

8 files changed, 2 insertions, 211 deletions

diff --git a/drivers/mfd/tps65912-irq.c b/drivers/mfd/tps65912-irq.c
index 9637a632e19..766ed7dd8f5 100644
--- a/drivers/mfd/tps65912-irq.c
+++ b/drivers/mfd/tps65912-irq.c
@@ -34,7 +34,6 @@ static inline int irq_to_tps65912_irq(struct tps65912 *tps65912,
 static irqreturn_t powerkey_handler(int irq, void *irq_data)
 {
 	struct tps65912 *tps65912 = irq_data;
-	unsigned int code = tps65912->powerkey_code;
 	u32 new_state;
 
 	if (irq - tps65912->irq_base == tps65912->powerkey_up_irq) {
@@ -48,36 +47,9 @@ static irqreturn_t powerkey_handler(int irq, void *irq_data)
 	}
 
 	mutex_lock(&tps65912->irq_lock);
-
-#ifdef CONFIG_POWER_KEY_OVERRIDE
-	/* if we are not on dock, send the sleep key*/
-	/* this logic is a bit tricky, notifier from
-	display driver will trigger on keypress which will
-	interfere with the logic for keyrelease. we will
-	see key press sent for KEY_POWER, but key release
-	for KEY_SLEEP. To fix this, we cache the event code
-	being sent out for keypress and we always send the
-	cached event code for key release */
-
-	if (new_state == PWRKEY_PRESS) {
-		if (tps65912->dockstatus == false &&
-		    tps65912->displaystatus == true)
-				code = KEY_SLEEP;
-
-		tps65912->lastkeyevent = code;
-	}
-
-	if (new_state == PWRKEY_RELEASE) {
-		code = tps65912->lastkeyevent;
-		/* Deliberately setting to -1, to catch
-		errors */
-		tps65912->lastkeyevent = -1;
-	}
-#endif
-
 	if (new_state != tps65912->powerkey_state) {
 		tps65912_broadcast_key_event(tps65912,
-					     code,
+					     tps65912->powerkey_code,
 					     new_state);
 		tps65912->powerkey_state = new_state;
 	}
diff --git a/drivers/mfd/tps65912-key.c b/drivers/mfd/tps65912-key.c
index 308f5c97921..3f389039405 100644
--- a/drivers/mfd/tps65912-key.c
+++ b/drivers/mfd/tps65912-key.c
@@ -23,42 +23,13 @@
 #include <linux/input.h>
 #include <linux/gpio.h>
 #include <linux/mfd/tps65912.h>
-#ifdef CONFIG_WAKEUP_SOURCE_NOTIFY
 #include <linux/wakeup_source_notify.h>
-#endif
-#ifdef CONFIG_POWER_KEY_OVERRIDE
-#include <linux/charger_notify.h>
-#include <linux/display_notify.h>
-#endif
 
 struct tps65912_key_data {
 	struct input_dev *input_dev;
 	struct tps65912 *tps65912;
 };
 
-#ifdef CONFIG_POWER_KEY_OVERRIDE
-static int charger_notify(struct notifier_block *self,
-		unsigned long action, void *dev)
-{
-	struct tps65912 *tps65912 =
-		container_of(self, struct tps65912, charger_nb);
-	tps65912->dockstatus = (action == EVENT_DOCKON);
-	pr_info("%s: dockstatus is %d\n", __func__, tps65912->dockstatus);
-	return NOTIFY_OK;
-}
-
-static int display_notify(struct notifier_block *self,
-		unsigned long action, void *dev)
-{
-	struct tps65912 *tps65912 =
-		container_of(self, struct tps65912, display_nb);
-
-	tps65912->displaystatus = (action == DISPLAY_EVENT_DISPLAYON);
-	pr_info("%s: displaystatus is %d\n", __func__, tps65912->displaystatus);
-	return NOTIFY_OK;
-}
-#endif
-
 static int tps65912_key_probe(struct platform_device *pdev)
 {
 	int err;
@@ -86,9 +57,6 @@ static int tps65912_key_probe(struct platform_device *pdev)
 
 	set_bit(EV_KEY, key->input_dev->evbit);
 	set_bit(key->tps65912->powerkey_code, key->input_dev->keybit);
-#ifdef CONFIG_POWER_KEY_OVERRIDE
-	set_bit(KEY_SLEEP, key->input_dev->keybit);
-#endif
 
 	key->input_dev->name = "tps65912-key";
 
@@ -101,17 +69,6 @@ static int tps65912_key_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, key);
 	tps65912_set_keydata(key->tps65912, key);
 
-#ifdef CONFIG_POWER_KEY_OVERRIDE
-	key->tps65912->charger_nb.notifier_call = charger_notify;
-	charger_register_notify(&key->tps65912->charger_nb);
-	key->tps65912->dockstatus = false;
-
-	key->tps65912->display_nb.notifier_call = display_notify;
-	display_register_notify(&key->tps65912->display_nb);
-	key->tps65912->displaystatus = true;
-	key->tps65912->lastkeyevent = -1;
-#endif
-
 	dev_info(&pdev->dev, "tps65912 key device probed\n");
 
 	return 0;
@@ -129,10 +86,6 @@ static int __exit tps65912_key_remove(struct platform_device *pdev)
 
 	input_unregister_device(key->input_dev);
 	input_free_device(key->input_dev);
-#ifdef CONFIG_POWER_KEY_OVERRIDE
-	charger_unregister_notify(&key->tps65912->charger_nb);
-	display_unregister_notify(&key->tps65912->display_nb);
-#endif
 	kfree(key);
 
 	return 0;
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index 2b3fbb02f2a..5b96da5fda8 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -586,11 +586,6 @@ config WAKEUP_SOURCE_NOTIFY
         help
           Driver to allow early notification of wakeups
 
-config POWER_KEY_OVERRIDE
-        tristate "dynamically switch between generating KEY_SLEEP and KEY_POWER"
-        help
-          controls key code to be generated from power key
-
 source "drivers/misc/c2port/Kconfig"
 source "drivers/misc/eeprom/Kconfig"
 source "drivers/misc/cb710/Kconfig"
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index 684e5a88236..2f57dbac599 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -68,5 +68,3 @@ obj-$(CONFIG_MOT_UTAG)          += utag/
 obj-$(CONFIG_BQ5105X_CTRL)      += bq5105x_ctrl.o
 obj-$(CONFIG_BQ5105X_DETECT)    += bq5105x_detect.o
 obj-$(CONFIG_WAKEUP_SOURCE_NOTIFY)	+= wakeup_source_notify.o
-obj-$(CONFIG_POWER_KEY_OVERRIDE)	+= charger_notify.o
-obj-$(CONFIG_POWER_KEY_OVERRIDE)	+= display_notify.o
diff --git a/drivers/misc/bq5105x_detect.c b/drivers/misc/bq5105x_detect.c
index 4c01828f5ca..37cbdcaa11c 100644
--- a/drivers/misc/bq5105x_detect.c
+++ b/drivers/misc/bq5105x_detect.c
@@ -31,12 +31,7 @@
 #include <linux/switch.h>
 #include <linux/wakelock.h>
 #include <linux/workqueue.h>
-#ifdef CONFIG_WAKEUP_SOURCE_NOTIFY
 #include <linux/wakeup_source_notify.h>
-#endif
-#ifdef CONFIG_POWER_KEY_OVERRIDE
-#include <linux/charger_notify.h>
-#endif
 
 /*
  * Detect when a device is placed on a wireless charger and report this to user
@@ -220,10 +215,6 @@ static void bq5105x_detect_report(struct bq5105x_detect *chip, bool docked)
 {
 	if (chip->reported_docked != docked) {
 		dev_dbg(&chip->pdev->dev, "report docked=%d\n", docked);
-#ifdef CONFIG_POWER_KEY_OVERRIDE
-		charger_notify_subscriber(docked
-						? EVENT_DOCKON : EVENT_DOCKOFF);
-#endif
 #ifdef CONFIG_WAKEUP_SOURCE_NOTIFY
 		wakeup_source_notify_subscriber(docked
 						? DISPLAY_WAKE_EVENT_DOCKON
diff --git a/drivers/misc/charger_notify.c b/drivers/misc/charger_notify.c
deleted file mode 100644
index 79f9e726f87..00000000000
--- a/drivers/misc/charger_notify.c
+++ /dev/null
@@ -1,50 +0,0 @@
-/*
- * Copyright (C) 2014 Motorola Mobility LLC.
- *
- * 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.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <linux/notifier.h>
-#include <linux/charger_notify.h>
-
-static BLOCKING_NOTIFIER_HEAD(charger_notifier_list);
-
-/**
- * charger_register_notify - register a notifier callback for triggering display init
- * @nb: pointer to the notifier block for the callback events.
- *
- */
-void charger_register_notify(struct notifier_block *nb)
-{
-	blocking_notifier_chain_register(&charger_notifier_list, nb);
-}
-EXPORT_SYMBOL_GPL(charger_register_notify);
-
-/**
- * charger_unregister_notify - unregister a notifier callback
- * @nb: pointer to the notifier block for the callback events.
- *
- * charger_register_notify() must have been previously called
- * for this function to work properly.
- */
-void charger_unregister_notify(struct notifier_block *nb)
-{
-	blocking_notifier_chain_unregister(&charger_notifier_list, nb);
-}
-EXPORT_SYMBOL_GPL(charger_unregister_notify);
-
-void charger_notify_subscriber(unsigned long event)
-{
-	blocking_notifier_call_chain(&charger_notifier_list, event, NULL);
-}
-EXPORT_SYMBOL_GPL(charger_notify_subscriber);
diff --git a/drivers/misc/display_notify.c b/drivers/misc/display_notify.c
deleted file mode 100644
index e243058fc4e..00000000000
--- a/drivers/misc/display_notify.c
+++ /dev/null
@@ -1,50 +0,0 @@
-/*
- * Copyright (C) 2014 Motorola Mobility LLC.
- *
- * 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.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <linux/notifier.h>
-#include <linux/display_notify.h>
-
-static BLOCKING_NOTIFIER_HEAD(display_notifier_list);
-
-/**
- * display_register_notify - register a notifier callback for triggering display init
- * @nb: pointer to the notifier block for the callback events.
- *
- */
-void display_register_notify(struct notifier_block *nb)
-{
-	blocking_notifier_chain_register(&display_notifier_list, nb);
-}
-EXPORT_SYMBOL_GPL(display_register_notify);
-
-/**
- * display_unregister_notify - unregister a notifier callback
- * @nb: pointer to the notifier block for the callback events.
- *
- * display_register_notify() must have been previously called
- * for this function to work properly.
- */
-void display_unregister_notify(struct notifier_block *nb)
-{
-	blocking_notifier_chain_unregister(&display_notifier_list, nb);
-}
-EXPORT_SYMBOL_GPL(display_unregister_notify);
-
-void display_notify_subscriber(unsigned long event)
-{
-	blocking_notifier_call_chain(&display_notifier_list, event, NULL);
-}
-EXPORT_SYMBOL_GPL(display_notify_subscriber);
diff --git a/drivers/video/omap2/displays/panel-minnow.c b/drivers/video/omap2/displays/panel-minnow.c
index e05806626e1..cc231d4da58 100644
--- a/drivers/video/omap2/displays/panel-minnow.c
+++ b/drivers/video/omap2/displays/panel-minnow.c
@@ -44,12 +44,7 @@
 #include <video/omap-panel-data.h>
 #include <video/mipi_display.h>
 #include <linux/notifier.h>
-#ifdef CONFIG_WAKEUP_SOURCE_NOTIFY
 #include <linux/wakeup_source_notify.h>
-#endif
-#ifdef CONFIG_POWER_KEY_OVERRIDE
-#include <linux/display_notify.h>
-#endif
 
 #include "../dss/dss.h"
 
@@ -3286,12 +3281,8 @@ static int minnow_panel_change_state_mlocked(struct minnow_panel_data *mpd,
 
 	switch (state) {
 	case DISPLAY_DISABLE:
-		if (mpd->enabled) {
+		if (mpd->enabled)
 			minnow_panel_disable_mlocked(mpd);
-#ifdef CONFIG_POWER_KEY_OVERRIDE
-			display_notify_subscriber(DISPLAY_EVENT_DISPLAYOFF);
-#endif
-		}
 		break;
 	case DISPLAY_ENABLE:
 		if (!mpd->enabled)
@@ -3302,9 +3293,6 @@ static int minnow_panel_change_state_mlocked(struct minnow_panel_data *mpd,
 		 */
 		else if (mpd->state == DISPLAY_AMBIENT_ON)
 			minnow_panel_set_default_fps(mpd);
-#ifdef CONFIG_POWER_KEY_OVERRIDE
-		display_notify_subscriber(DISPLAY_EVENT_DISPLAYON);
-#endif
 #endif
 		break;
 #ifdef	CONFIG_HAS_AMBIENTMODE
@@ -3319,9 +3307,6 @@ static int minnow_panel_change_state_mlocked(struct minnow_panel_data *mpd,
 			/* Turn off the back light */
 			led_set_brightness(led_get_default_dev(), 0);
 			minnow_panel_disable_mlocked(mpd);
-#ifdef CONFIG_POWER_KEY_OVERRIDE
-			display_notify_subscriber(DISPLAY_EVENT_DISPLAYOFF);
-#endif
 		}
 		break;
 	case DISPLAY_AMBIENT_ON:
@@ -3344,9 +3329,6 @@ static int minnow_panel_change_state_mlocked(struct minnow_panel_data *mpd,
 		if (!mpd->enabled)
 			r = minnow_panel_enable_mlocked(mpd);
 		if (!r) {
-#ifdef CONFIG_POWER_KEY_OVERRIDE
-			display_notify_subscriber(DISPLAY_EVENT_DISPLAYOFF);
-#endif
 			/* switch to lowest refresh rate */
 			minnow_panel_set_lowest_fps(mpd);
 			/* Dim the back light */