Merge tag 'v5.9-rc2' into regulator-5.9

Linux 5.9-rc2

1 files changed, 21 insertions, 2 deletions

diff --git a/drivers/reset/reset-simple.c b/drivers/reset/reset-simple.c
index 067e7e7b34f1..e066614818a3 100644
--- a/drivers/reset/reset-simple.c
+++ b/drivers/reset/reset-simple.c
@@ -11,6 +11,7 @@
  * Maxime Ripard <maxime.ripard@free-electrons.com>
  */
 
+#include <linux/delay.h>
 #include <linux/device.h>
 #include <linux/err.h>
 #include <linux/io.h>
@@ -18,10 +19,9 @@
 #include <linux/of_device.h>
 #include <linux/platform_device.h>
 #include <linux/reset-controller.h>
+#include <linux/reset/reset-simple.h>
 #include <linux/spinlock.h>
 
-#include "reset-simple.h"
-
 static inline struct reset_simple_data *
 to_reset_simple_data(struct reset_controller_dev *rcdev)
 {
@@ -64,6 +64,24 @@ static int reset_simple_deassert(struct reset_controller_dev *rcdev,
 	return reset_simple_update(rcdev, id, false);
 }
 
+static int reset_simple_reset(struct reset_controller_dev *rcdev,
+			      unsigned long id)
+{
+	struct reset_simple_data *data = to_reset_simple_data(rcdev);
+	int ret;
+
+	if (!data->reset_us)
+		return -ENOTSUPP;
+
+	ret = reset_simple_assert(rcdev, id);
+	if (ret)
+		return ret;
+
+	usleep_range(data->reset_us, data->reset_us * 2);
+
+	return reset_simple_deassert(rcdev, id);
+}
+
 static int reset_simple_status(struct reset_controller_dev *rcdev,
 			       unsigned long id)
 {
@@ -81,6 +99,7 @@ static int reset_simple_status(struct reset_controller_dev *rcdev,
 const struct reset_control_ops reset_simple_ops = {
 	.assert		= reset_simple_assert,
 	.deassert	= reset_simple_deassert,
+	.reset		= reset_simple_reset,
 	.status		= reset_simple_status,
 };
 EXPORT_SYMBOL_GPL(reset_simple_ops);