From c8d15c437519477dbcc2c5e909619aed3ae9df30 Mon Sep 17 00:00:00 2001
From: Joseph Chen <chenjh@rock-chips.com>
Date: Mon, 30 Oct 2017 11:13:46 +0800
Subject: [PATCH] dm: pmic: add pmic_shutdown() interface

Change-Id: I9bed8de6d3733ab90175f26f68160ddd8f12e295
Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
---
 drivers/power/pmic/pmic-uclass.c | 11 +++++++++++
 include/power/pmic.h             |  9 +++++++++
 2 files changed, 20 insertions(+)

diff --git a/drivers/power/pmic/pmic-uclass.c b/drivers/power/pmic/pmic-uclass.c
index 953bbe5026..9b8d8571e2 100644
--- a/drivers/power/pmic/pmic-uclass.c
+++ b/drivers/power/pmic/pmic-uclass.c
@@ -163,6 +163,17 @@ int pmic_clrsetbits(struct udevice *dev, uint reg, uint clr, uint set)
 	return pmic_reg_write(dev, reg, byte);
 }
 
+
+int pmic_shutdown(struct udevice *dev)
+{
+	const struct dm_pmic_ops *ops = dev_get_driver_ops(dev);
+
+	if (!ops || !ops->shutdown)
+		return -ENOSYS;
+
+	return ops->shutdown(dev);
+}
+
 UCLASS_DRIVER(pmic) = {
 	.id		= UCLASS_PMIC,
 	.name		= "pmic",
diff --git a/include/power/pmic.h b/include/power/pmic.h
index 4b34316427..980fd3e67d 100644
--- a/include/power/pmic.h
+++ b/include/power/pmic.h
@@ -164,6 +164,7 @@ struct dm_pmic_ops {
 	int (*read)(struct udevice *dev, uint reg, uint8_t *buffer, int len);
 	int (*write)(struct udevice *dev, uint reg, const uint8_t *buffer,
 		     int len);
+	int (*shutdown)(struct udevice *dev);
 };
 
 /**
@@ -297,6 +298,14 @@ int pmic_reg_write(struct udevice *dev, uint reg, uint value);
  */
 int pmic_clrsetbits(struct udevice *dev, uint reg, uint clr, uint set);
 
+/**
+ * pmic_shutdown() - power off supplies of PMIC
+ *
+ * @dev:	PMIC device to update
+ * @return 0 on success or negative value of errno.
+ */
+int pmic_shutdown(struct udevice *dev);
+
 #endif /* CONFIG_DM_PMIC */
 
 #ifdef CONFIG_POWER