upstream update

arch/arm64/configs/cm_oneplus2_defconfig

@@ -380,6 +380,8 @@ CONFIG_SUSPEND=y
 CONFIG_SUSPEND_FREEZER=y
 CONFIG_HAS_WAKELOCK=y
 CONFIG_WAKELOCK=y
+CONFIG_POWERSUSPEND=y
+# CONFIG_POWERSUSPEND_DEBUG is not set
 CONFIG_PM_SLEEP=y
 CONFIG_PM_SLEEP_SMP=y
 CONFIG_PM_AUTOSLEEP=y

drivers/input/misc/fpc1020.h

@@ -52,7 +52,5 @@ typedef enum {
 	FPC1020_CHIP_1155X = 7
 } fpc1020_chip_t;
 
-extern unsigned int nav_switch;
-
 #endif
 

drivers/input/misc/fpc1020_common.h

@@ -38,6 +38,9 @@
 /* -------------------------------------------------------------------- */
 extern const bool target_little_endian;
 
+extern unsigned int nav_switch;
+extern unsigned int enable_keys;
+
 #define FPC1020_DEV_NAME                        "fpc1020"
 #define FPC1020_TOUCH_PAD_DEV_NAME              "fpc1020tp"
 

drivers/input/misc/fpc1020_main.c

@@ -217,6 +217,7 @@ static int fb_notifier_callback(struct notifier_block *self, unsigned long event
 #endif
 
 unsigned int nav_switch = 1;
+unsigned int enable_keys = 1;
 
 /* -------------------------------------------------------------------- */
 /* External interface							*/
@@ -575,7 +576,6 @@ static ssize_t fpc1020_home_switch_store(struct device *dev, struct device_attri
 
 	//tmp = strsep((char **) &buf, "\n");
 	char *after;
-	unsigned long nav_switch = 0;
 
 	mutex_lock(&mLock);
 
@@ -584,7 +584,7 @@ static ssize_t fpc1020_home_switch_store(struct device *dev, struct device_attri
 
 	fpc1020 = dev_get_drvdata(dev);
 
-	dev_err(&fpc1020->spi->dev, "nav_switch change to %ld\n", nav_switch);
+	dev_err(&fpc1020->spi->dev, "nav_switch change to %d\n", nav_switch);
 
 	write_nav_switch(fpc1020);
 
@@ -597,7 +597,7 @@ static ssize_t fpc1020_home_switch_show(struct device *dev, struct device_attrib
 	fpc1020_data_t *fpc1020;
 	fpc1020 = dev_get_drvdata(dev);
 
-	return sprintf(buf, "%d", fpc1020->nav.enabled);
+	return sprintf(buf, "%d\n", fpc1020->nav.enabled);
 }
 //*/
 static struct device_attribute fpc1020_state_attr =
@@ -938,8 +938,6 @@ static int /*__devexit*/ fpc1020_remove(struct spi_device *spi)
 }
 
 #if defined(CONFIG_FB)
-static int enable_keys = 1;
-
 static int fb_notifier_callback(struct notifier_block *self, unsigned long event, void *data)
 {
 	struct fb_event *evdata = data;
@@ -954,17 +952,13 @@ static int fb_notifier_callback(struct notifier_block *self, unsigned long event
 		if( *blank == FB_BLANK_UNBLANK && (event == FB_EARLY_EVENT_BLANK )) {
 			dev_err(&fpc1020->spi->dev, "%s change to home key\n", __func__);
 			fpc1020->to_power = false;
-			if (enable_keys) nav_switch = 1;
+			enable_keys = 1;
 		} else if( *blank == FB_BLANK_POWERDOWN && (event == FB_EVENT_BLANK )) {
 			dev_err(&fpc1020->spi->dev, "%s change to power key\n", __func__);
 			fpc1020->to_power = true;
-			if (!nav_switch) enable_keys = 0;
-			nav_switch = 0;
+			enable_keys = 0;
 		}
 	}
-
-	if (enable_keys) write_nav_switch(fpc1020);
-	if (!fpc1020->to_power) enable_keys = 1;
 	return 0;
 }
 #endif

drivers/input/misc/fpc1020_nav.c

@@ -922,7 +922,7 @@ static int fpc1020_wait_finger_present_lpm(fpc1020_data_t *fpc1020)
                 input_report_key(fpc1020->input_dev,
 						FPC1020_KEY_FINGER_PRESS, 1);
 			    input_sync(fpc1020->input_dev);
-			}else{
+			}else if (enable_keys) {
 			    wake_lock_timeout(&fpc1020_wake_lock,5*HZ);
 			    input_report_key(fpc1020->input_dev,
 						KEY_HOME, 1);
@@ -962,7 +962,7 @@ static int fpc1020_wait_finger_present_lpm(fpc1020_data_t *fpc1020)
                             input_report_key(fpc1020->input_dev,
                                 FPC1020_KEY_FINGER_PRESS, 0);
                             input_sync(fpc1020->input_dev);
-                        }else{
+                        }else if (enable_keys) {
                             input_report_key(fpc1020->input_dev,
                                 KEY_HOME, 0);
                             input_sync(fpc1020->input_dev);

drivers/input/touchscreen/synaptics_driver_s1302.c

@@ -55,7 +55,7 @@
 #include <linux/input/mt.h>
 
 #include "synaptics_s1302_redremote.h"
-#include "../misc/fpc1020.h"
+#include "../misc/fpc1020_common.h"
 #include <linux/boot_mode.h>
 #include <linux/project_info.h>
 /*------------------------------------------------Global Define--------------------------------------------*/
@@ -672,7 +672,7 @@ static void int_key(struct synaptics_ts_data *ts )
     int ret;
     int button_key;
 
-    if (!nav_switch)
+    if (!nav_switch || !enable_keys)
         return;
 
     ret = synaptics_rmi4_i2c_write_byte(ts->client, 0xff, 0x02 );

drivers/video/msm/mdss/mdss_dsi_panel.c

@@ -25,6 +25,10 @@
 #include "mdss_dsi.h"
 #include "mdss_mdp.h"
 
+#ifdef CONFIG_POWERSUSPEND
+#include <linux/powersuspend.h>
+#endif
+
 #define DT_CMD_HDR 6
 #define MIN_REFRESH_RATE 30
 
@@ -953,6 +957,10 @@ static int mdss_dsi_panel_on(struct mdss_panel_data *pdata)
 		return -EINVAL;
 	}
 
+#ifdef CONFIG_POWERSUSPEND
+	set_power_suspend_state_panel_hook(POWER_SUSPEND_INACTIVE);
+#endif
+
 	pinfo = &pdata->panel_info;
 	ctrl = container_of(pdata, struct mdss_dsi_ctrl_pdata,
 			panel_data);
@@ -1080,6 +1088,10 @@ static int mdss_dsi_panel_off(struct mdss_panel_data *pdata)
 //	printk("%s: after sleep Reg 0A 0x%02x\n", __func__, rx_buf[0]);
 //	mdss_debug_enable_clock(0);
 
+#ifdef CONFIG_POWERSUSPEND
+	set_power_suspend_state_panel_hook(POWER_SUSPEND_ACTIVE);
+#endif
+
 end:
 	pinfo->blank_state = MDSS_PANEL_BLANK_BLANK;
 	pr_debug("%s:-\n", __func__);

include/linux/powersuspend.h

@@ -0,0 +1,42 @@
+/* include/linux/powersuspend.h
+ *
+ * Copyright (C) 2007-2008 Google, Inc.
+ * Copyright (C) 2013 Paul Reioux 
+ *
+ * Modified by Jean-Pierre Rasquin <yank555.lu@gmail.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * 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.
+ *
+ */
+
+#ifndef _LINUX_POWERSUSPEND_H
+#define _LINUX_POWERSUSPEND_H
+
+#include <linux/list.h>
+
+#define POWER_SUSPEND_INACTIVE	0
+#define POWER_SUSPEND_ACTIVE	1
+
+#define POWER_SUSPEND_USERSPACE	1	// Use fauxclock as trigger
+#define POWER_SUSPEND_PANEL	2	// Use display panel state as hook
+
+struct power_suspend {
+	struct list_head link;
+	void (*suspend)(struct power_suspend *h);
+	void (*resume)(struct power_suspend *h);
+};
+
+void register_power_suspend(struct power_suspend *handler);
+void unregister_power_suspend(struct power_suspend *handler);
+
+void set_power_suspend_state_panel_hook(int new_state);
+
+#endif
+

kernel/power/Kconfig

@@ -26,6 +26,19 @@ config WAKELOCK
 	bool
 	default y
 
+config POWERSUSPEND
+	bool "Power suspend"
+	default y
+	---help---
+	  Call early suspend handlers when the user requested sleep state
+	  changes.
+
+config POWERSUSPEND_DEBUG
+	bool "Powersuspend driver debugging code"
+	depends on POWERSUSPEND
+	help
+	  Output debugging info in dmesg [POWERSUSPEND] (Yank555.lu)
+
 config HIBERNATE_CALLBACKS
 	bool
 

kernel/power/Makefile

@@ -9,6 +9,7 @@ obj-$(CONFIG_SUSPEND)		+= suspend.o
 obj-$(CONFIG_PM_TEST_SUSPEND)	+= suspend_test.o
 obj-$(CONFIG_HIBERNATION)	+= hibernate.o snapshot.o swap.o user.o \
 				   block_io.o
+obj-$(CONFIG_POWERSUSPEND)	+= powersuspend.o
 obj-$(CONFIG_PM_AUTOSLEEP)	+= autosleep.o
 obj-$(CONFIG_PM_WAKELOCKS)	+= wakelock.o
 obj-$(CONFIG_SUSPEND_TIME)	+= suspend_time.o