diff --git a/drivers/mfd/qcom-spmi-pmic.c b/drivers/mfd/qcom-spmi-pmic.c
index e8fe705073fa..f1da3aa6d6d5 100644
--- a/drivers/mfd/qcom-spmi-pmic.c
+++ b/drivers/mfd/qcom-spmi-pmic.c
@@ -1,7 +1,5 @@
 // SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright (c) 2014, The Linux Foundation. All rights reserved.
- */
+/* Copyright (c) 2014, 2017-2018, The Linux Foundation. All rights reserved. */
 
 #include <linux/kernel.h>
 #include <linux/module.h>
@@ -116,11 +114,23 @@ static const struct regmap_config spmi_regmap_config = {
 	.fast_io	= true,
 };
 
+static const struct regmap_config spmi_regmap_can_sleep_config = {
+	.reg_bits	= 16,
+	.val_bits	= 8,
+	.max_register	= 0xffff,
+	.fast_io	= false,
+};
+
 static int pmic_spmi_probe(struct spmi_device *sdev)
 {
+	struct device_node *root = sdev->dev.of_node;
 	struct regmap *regmap;
 
-	regmap = devm_regmap_init_spmi_ext(sdev, &spmi_regmap_config);
+	if (of_property_read_bool(root, "qcom,can-sleep"))
+		regmap = devm_regmap_init_spmi_ext(sdev,
+						&spmi_regmap_can_sleep_config);
+	else
+		regmap = devm_regmap_init_spmi_ext(sdev, &spmi_regmap_config);
 	if (IS_ERR(regmap))
 		return PTR_ERR(regmap);