Revert "misc: add Tizen reboot notifier for passing reboot parameter"

Tizen specific inform-reboot kernel module has been moved to
linux-tizen-modules-source repository, so keeping a copy of it
in each kernel repository is not needed anymore.

This reverts commit c9458239ab7b0103ff1d94958eb1b9a97968f938.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Change-Id: Ic73b4f6fc30ebb9699acbfa2bd98e0cf97ff6c7a

3 files changed, 0 insertions, 88 deletions

diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index 75cdf211be73..a76c6c9eca45 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -570,22 +570,6 @@ config TPS6594_PFSM
 	  This driver can also be built as a module.  If so, the module
 	  will be called tps6594-pfsm.
 
-config TIZEN_INFORM_REBOOT
-	bool "Tizen reboot parameter passing support"
-	default "n"
-	help
-	  This enables support for passing reboot parameter through inform
-	  partition. It is required to determine booting mode (e.g., fota or
-	  normal). After passing reboot parameter, u-boot checks the contents
-	  of inform file and then determines proper booting mode.
-
-config TIZEN_INFORM_PATH
-	depends on TIZEN_INFORM_REBOOT
-	string "Absolute path of inform file for passing reboot parameter"
-	help
-	  This option determines the absolute path of inform file for passing
-	  reboot parameter.
-
 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 777161c64c2d..02bc5669370e 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -68,4 +68,3 @@ obj-$(CONFIG_TMR_MANAGER)      += xilinx_tmr_manager.o
 obj-$(CONFIG_TMR_INJECT)	+= xilinx_tmr_inject.o
 obj-$(CONFIG_TPS6594_ESM)	+= tps6594-esm.o
 obj-$(CONFIG_TPS6594_PFSM)	+= tps6594-pfsm.o
-obj-$(CONFIG_TIZEN_INFORM_REBOOT)	+= tizen-inform-reboot.o
diff --git a/drivers/misc/tizen-inform-reboot.c b/drivers/misc/tizen-inform-reboot.c
deleted file mode 100644
index f85386e8b7d2..000000000000
--- a/drivers/misc/tizen-inform-reboot.c
+++ /dev/null
@@ -1,71 +0,0 @@
-/*
- * Tizen reboot parameter passing notifier
- *
- * Written by: Junghoon Kim <jhoon20.kim@samsung.com>
- *
- * Copyright (C) 2017 Samsung Electronics Co., Ltd.
- *
- * 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.
- */
-
-#include <linux/notifier.h>
-#include <linux/reboot.h>
-#include <linux/syscalls.h>
-#include <linux/file.h>
-#include <linux/fcntl.h>
-#include <linux/uaccess.h>
-
-static int inform_reboot_notifier(struct notifier_block *nb,
-						unsigned long val, void *buf)
-{
-	char *cmd = buf;
-	char *filename = CONFIG_TIZEN_INFORM_PATH;
-	struct file *file;
-	loff_t pos = 0;
-
-	file = filp_open(filename, O_CREAT | O_WRONLY | O_TRUNC, 0644);
-	if (!IS_ERR(file)) {
-		struct super_block *sb = file->f_path.dentry->d_sb;
-
-		if (cmd) {
-			if (!strncmp(cmd, "fota", 4))
-				cmd = "upgr";
-			else if (!strncmp(cmd, "recovery", 8))
-				cmd = "rcvr";
-			else if (!strncmp(cmd, "download", 8))
-				cmd = "dwnl";
-			else
-				cmd = "ndef";
-		} else
-			cmd = "norm";
-
-		kernel_write(file, cmd, strlen(cmd), &pos);
-
-		down_read(&sb->s_umount);
-		sync_filesystem(sb);
-		up_read(&sb->s_umount);
-
-		fput(file);
-	} else {
-		pr_err("Reboot parameter passing is failed.\n"
-				"Inform file path should be described correctly in config.\n");
-	}
-
-	return NOTIFY_DONE;
-}
-
-static struct notifier_block nb_inform_reboot_block = {
-	.notifier_call = inform_reboot_notifier,
-	.priority = 256,
-};
-
-static int __init inform_reboot_init(void)
-{
-	/* to support reboot parameter passing */
-	register_reboot_notifier(&nb_inform_reboot_block);
-	return 0;
-}
-
-subsys_initcall(inform_reboot_init);