diff --git a/drivers/char/tpm/tpm-chip.c b/drivers/char/tpm/tpm-chip.c
index 283f00a..8a4cfdb 100644
--- a/drivers/char/tpm/tpm-chip.c
+++ b/drivers/char/tpm/tpm-chip.c
@@ -26,6 +26,7 @@
 #include <linux/spinlock.h>
 #include <linux/freezer.h>
 #include <linux/major.h>
+#include <linux/kernfs.h>
 #include "tpm.h"
 #include "tpm_eventlog.h"
 
@@ -119,6 +120,9 @@ struct tpm_chip *tpmm_chip_alloc(struct device *dev,
 	chip->dev.class = tpm_class;
 	chip->dev.release = tpm_dev_release;
 	chip->dev.parent = chip->pdev;
+#ifdef CONFIG_ACPI
+	chip->dev.groups = chip->groups;
+#endif
 
 	if (chip->dev_num == 0)
 		chip->dev.devt = MKDEV(MISC_MAJOR, TPM_MINOR);
@@ -181,12 +185,6 @@ static int tpm1_chip_register(struct tpm_chip *chip)
 	if (rc)
 		return rc;
 
-	rc = tpm_add_ppi(chip);
-	if (rc) {
-		tpm_sysfs_del_device(chip);
-		return rc;
-	}
-
 	chip->bios_dir = tpm_bios_log_setup(chip->devname);
 
 	return 0;
@@ -200,8 +198,6 @@ static void tpm1_chip_unregister(struct tpm_chip *chip)
 	if (chip->bios_dir)
 		tpm_bios_log_teardown(chip->bios_dir);
 
-	tpm_remove_ppi(chip);
-
 	tpm_sysfs_del_device(chip);
 }
 
@@ -224,10 +220,17 @@ int tpm_chip_register(struct tpm_chip *chip)
 	if (rc)
 		return rc;
 
+	tpm_add_ppi(chip);
+
 	rc = tpm_dev_add_device(chip);
 	if (rc)
 		goto out_err;
 
+	rc = sysfs_link_group_to_kobj(&chip->pdev->kobj, &chip->dev.kobj,
+				      "ppi");
+	if (rc)
+		goto out_err;
+
 	/* Make the chip available. */
 	spin_lock(&driver_lock);
 	list_add_rcu(&chip->list, &tpm_chip_list);
@@ -262,6 +265,8 @@ void tpm_chip_unregister(struct tpm_chip *chip)
 	spin_unlock(&driver_lock);
 	synchronize_rcu();
 
+	kernfs_remove_by_name(chip->pdev->kobj.sd, "ppi");
+
 	tpm1_chip_unregister(chip);
 	tpm_dev_del_device(chip);
 }
diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h
index f8319a0..3f96025 100644
--- a/drivers/char/tpm/tpm.h
+++ b/drivers/char/tpm/tpm.h
@@ -151,8 +151,7 @@ struct tpm_vendor_specific {
 
 enum tpm_chip_flags {
 	TPM_CHIP_FLAG_REGISTERED	= BIT(0),
-	TPM_CHIP_FLAG_PPI		= BIT(1),
-	TPM_CHIP_FLAG_TPM2		= BIT(2),
+	TPM_CHIP_FLAG_TPM2		= BIT(1),
 };
 
 struct tpm_chip {
@@ -175,6 +174,8 @@ struct tpm_chip {
 	struct dentry **bios_dir;
 
 #ifdef CONFIG_ACPI
+	const struct attribute_group *groups[2];
+	unsigned int groups_cnt;
 	acpi_handle acpi_dev_handle;
 	char ppi_version[TPM_PPI_VERSION_LEN + 1];
 #endif /* CONFIG_ACPI */
@@ -182,7 +183,7 @@ struct tpm_chip {
 	struct list_head list;
 };
 
-#define to_tpm_chip(n) container_of(n, struct tpm_chip, vendor)
+#define to_tpm_chip(n) container_of(dev, struct tpm_chip, dev)
 
 static inline void tpm_chip_put(struct tpm_chip *chip)
 {
@@ -412,15 +413,9 @@ void tpm_sysfs_del_device(struct tpm_chip *chip);
 int tpm_pcr_read_dev(struct tpm_chip *chip, int pcr_idx, u8 *res_buf);
 
 #ifdef CONFIG_ACPI
-extern int tpm_add_ppi(struct tpm_chip *chip);
-extern void tpm_remove_ppi(struct tpm_chip *chip);
+extern void tpm_add_ppi(struct tpm_chip *chip);
 #else
-static inline int tpm_add_ppi(struct tpm_chip *chip)
-{
-	return 0;
-}
-
-static inline void tpm_remove_ppi(struct tpm_chip *chip)
+static inline void tpm_add_ppi(struct tpm_chip *chip)
 {
 }
 #endif
diff --git a/drivers/char/tpm/tpm_ppi.c b/drivers/char/tpm/tpm_ppi.c
index 6ca9b5d..692a2c6 100644
--- a/drivers/char/tpm/tpm_ppi.c
+++ b/drivers/char/tpm/tpm_ppi.c
@@ -53,7 +53,7 @@ tpm_eval_dsm(acpi_handle ppi_handle, int func, acpi_object_type type,
 static ssize_t tpm_show_ppi_version(struct device *dev,
 				    struct device_attribute *attr, char *buf)
 {
-	struct tpm_chip *chip = dev_get_drvdata(dev);
+	struct tpm_chip *chip = to_tpm_chip(dev);
 
 	return scnprintf(buf, PAGE_SIZE, "%s\n", chip->ppi_version);
 }
@@ -63,7 +63,7 @@ static ssize_t tpm_show_ppi_request(struct device *dev,
 {
 	ssize_t size = -EINVAL;
 	union acpi_object *obj;
-	struct tpm_chip *chip = dev_get_drvdata(dev);
+	struct tpm_chip *chip = to_tpm_chip(dev);
 
 	obj = tpm_eval_dsm(chip->acpi_dev_handle, TPM_PPI_FN_GETREQ,
 			   ACPI_TYPE_PACKAGE, NULL);
@@ -100,7 +100,7 @@ static ssize_t tpm_store_ppi_request(struct device *dev,
 	int func = TPM_PPI_FN_SUBREQ;
 	union acpi_object *obj, tmp;
 	union acpi_object argv4 = ACPI_INIT_DSM_ARGV4(1, &tmp);
-	struct tpm_chip *chip = dev_get_drvdata(dev);
+	struct tpm_chip *chip = to_tpm_chip(dev);
 
 	/*
 	 * the function to submit TPM operation request to pre-os environment
@@ -156,7 +156,7 @@ static ssize_t tpm_show_ppi_transition_action(struct device *dev,
 		.buffer.length = 0,
 		.buffer.pointer = NULL
 	};
-	struct tpm_chip *chip = dev_get_drvdata(dev);
+	struct tpm_chip *chip = to_tpm_chip(dev);
 
 	static char *info[] = {
 		"None",
@@ -197,7 +197,7 @@ static ssize_t tpm_show_ppi_response(struct device *dev,
 	acpi_status status = -EINVAL;
 	union acpi_object *obj, *ret_obj;
 	u64 req, res;
-	struct tpm_chip *chip = dev_get_drvdata(dev);
+	struct tpm_chip *chip = to_tpm_chip(dev);
 
 	obj = tpm_eval_dsm(chip->acpi_dev_handle, TPM_PPI_FN_GETRSP,
 			   ACPI_TYPE_PACKAGE, NULL);
@@ -296,7 +296,7 @@ static ssize_t tpm_show_ppi_tcg_operations(struct device *dev,
 					   struct device_attribute *attr,
 					   char *buf)
 {
-	struct tpm_chip *chip = dev_get_drvdata(dev);
+	struct tpm_chip *chip = to_tpm_chip(dev);
 
 	return show_ppi_operations(chip->acpi_dev_handle, buf, 0,
 				   PPI_TPM_REQ_MAX);
@@ -306,7 +306,7 @@ static ssize_t tpm_show_ppi_vs_operations(struct device *dev,
 					  struct device_attribute *attr,
 					  char *buf)
 {
-	struct tpm_chip *chip = dev_get_drvdata(dev);
+	struct tpm_chip *chip = to_tpm_chip(dev);
 
 	return show_ppi_operations(chip->acpi_dev_handle, buf, PPI_VS_REQ_START,
 				   PPI_VS_REQ_END);
@@ -334,17 +334,16 @@ static struct attribute_group ppi_attr_grp = {
 	.attrs = ppi_attrs
 };
 
-int tpm_add_ppi(struct tpm_chip *chip)
+void tpm_add_ppi(struct tpm_chip *chip)
 {
 	union acpi_object *obj;
-	int rc;
 
 	if (!chip->acpi_dev_handle)
-		return 0;
+		return;
 
 	if (!acpi_check_dsm(chip->acpi_dev_handle, tpm_ppi_uuid,
 			    TPM_PPI_REVISION_ID, 1 << TPM_PPI_FN_VERSION))
-		return 0;
+		return;
 
 	/* Cache PPI version string. */
 	obj = acpi_evaluate_dsm_typed(chip->acpi_dev_handle, tpm_ppi_uuid,
@@ -356,16 +355,5 @@ int tpm_add_ppi(struct tpm_chip *chip)
 		ACPI_FREE(obj);
 	}
 
-	rc = sysfs_create_group(&chip->pdev->kobj, &ppi_attr_grp);
-
-	if (!rc)
-		chip->flags |= TPM_CHIP_FLAG_PPI;
-
-	return rc;
-}
-
-void tpm_remove_ppi(struct tpm_chip *chip)
-{
-	if (chip->flags & TPM_CHIP_FLAG_PPI)
-		sysfs_remove_group(&chip->pdev->kobj, &ppi_attr_grp);
+	chip->groups[chip->groups_cnt++] = &ppi_attr_grp;
 }
diff --git a/fs/kernfs/dir.c b/fs/kernfs/dir.c
index 6acc964..749cea3 100644
--- a/fs/kernfs/dir.c
+++ b/fs/kernfs/dir.c
@@ -1225,6 +1225,7 @@ int kernfs_remove_by_name_ns(struct kernfs_node *parent, const char *name,
 	else
 		return -ENOENT;
 }
+EXPORT_SYMBOL_GPL(kernfs_remove_by_name_ns);
 
 /**
  * kernfs_rename_ns - move and rename a kernfs_node
diff --git a/fs/sysfs/group.c b/fs/sysfs/group.c
index b400c04..25267d9 100644
--- a/fs/sysfs/group.c
+++ b/fs/sysfs/group.c
@@ -352,3 +352,45 @@ void sysfs_remove_link_from_group(struct kobject *kobj, const char *group_name,
 	}
 }
 EXPORT_SYMBOL_GPL(sysfs_remove_link_from_group);
+
+/**
+ * sysfs_link_group_to_kobj - add a symlink to a kobject pointing to a group
+ * @kobj:		The kobject containing the group.
+ * @target_kobj:	The target kobject.
+ * @target_name:	Name of the target group.
+ */
+int sysfs_link_group_to_kobj(struct kobject *kobj, struct kobject *target_kobj,
+			     const char *target_name)
+{
+	struct kernfs_node *target_kobj_sd;
+	struct kernfs_node *target_grp;
+	struct kernfs_node *link;
+
+	/*
+	 * We don't own @target_kobj and it may be removed at any time.
+	 * Synchronize using sysfs_symlink_target_lock. See sysfs_remove_dir()
+	 * for details.
+	 */
+	spin_lock(&sysfs_symlink_target_lock);
+	target_kobj_sd = target_kobj->sd;
+	if (target_kobj_sd)
+		kernfs_get(target_kobj_sd);
+	spin_unlock(&sysfs_symlink_target_lock);
+	if (!target_kobj_sd)
+		return -ENOENT;
+
+	target_grp = kernfs_find_and_get(target_kobj->sd, target_name);
+	if (!target_grp) {
+		kernfs_put(target_kobj_sd);
+		return -ENOENT;
+	}
+
+	link = kernfs_create_link(kobj->sd, target_name, target_grp);
+	if (IS_ERR(link) && PTR_ERR(link) == -EEXIST)
+		sysfs_warn_dup(kobj->sd, target_name);
+
+	kernfs_put(target_grp);
+	kernfs_put(target_kobj_sd);
+	return IS_ERR(link) ? PTR_ERR(link) : 0;
+}
+EXPORT_SYMBOL_GPL(sysfs_link_group_to_kobj);
diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
index 99382c0..7f2963e 100644
--- a/include/linux/sysfs.h
+++ b/include/linux/sysfs.h
@@ -264,6 +264,8 @@ int sysfs_add_link_to_group(struct kobject *kobj, const char *group_name,
 			    struct kobject *target, const char *link_name);
 void sysfs_remove_link_from_group(struct kobject *kobj, const char *group_name,
 				  const char *link_name);
+int sysfs_link_group_to_kobj(struct kobject *kobj, struct kobject *target_kobj,
+			     const char *target_name);
 
 void sysfs_notify(struct kobject *kobj, const char *dir, const char *attr);
 
@@ -436,6 +438,12 @@ static inline void sysfs_remove_link_from_group(struct kobject *kobj,
 {
 }
 
+int sysfs_link_group_to_kobj(struct kobject *kobj, struct kobject *target_kobj,
+			     const char *target_name)
+{
+	return 0;
+}
+
 static inline void sysfs_notify(struct kobject *kobj, const char *dir,
 				const char *attr)
 {
