From 80c9b923b708e87253f276db00f19024f2117faf Mon Sep 17 00:00:00 2001
From: David Collins <collinsd@codeaurora.org>
Date: Fri, 26 Jun 2020 14:17:01 -0700
Subject: [PATCH] regulator: stub-regulator: add support for debugfs control

Add support for debugfs control of a regulator's state.  This
is useful for testing and debugging.

Change-Id: I0be1fc1e6278df828d5ffce22f425c95b425f041
Signed-off-by: David Collins <collinsd@codeaurora.org>
---
 drivers/regulator/stub-regulator.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/regulator/stub-regulator.c b/drivers/regulator/stub-regulator.c
index d9c198d5cd9f..d34e40b18adc 100644
--- a/drivers/regulator/stub-regulator.c
+++ b/drivers/regulator/stub-regulator.c
@@ -1,6 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0-only
 /*
- * Copyright (c) 2012, 2016, 2018, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2012, 2016, 2018, 2020, The Linux Foundation.
+ * All rights reserved.
  */
 
 #include <linux/device.h>
@@ -12,6 +13,7 @@
 #include <linux/platform_device.h>
 #include <linux/slab.h>
 #include <linux/types.h>
+#include <linux/regulator/debug-regulator.h>
 #include <linux/regulator/driver.h>
 #include <linux/regulator/machine.h>
 #include <linux/regulator/of_regulator.h>
@@ -207,6 +209,10 @@ static int regulator_stub_probe(struct platform_device *pdev)
 		return rc;
 	}
 
+	rc = devm_regulator_debug_register(dev, rdev);
+	if (rc)
+		dev_err(dev, "failed to register debug regulator, rc=%d\n", rc);
+
 	return 0;
 }