From 34054942047728627c9f5aad92e85669c4bb34e8 Mon Sep 17 00:00:00 2001
From: hrdl <7808331-hrdl@users.noreply.gitlab.com>
Date: Sun, 12 Jun 2022 15:47:20 +0000
Subject: [PATCH] Rudimentary attempt to keep PMIC usable after suspend

---
 drivers/regulator/tps65185-regulator.c | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/drivers/regulator/tps65185-regulator.c b/drivers/regulator/tps65185-regulator.c
index d7730ff98c13..59327f41c8e2 100644
--- a/drivers/regulator/tps65185-regulator.c
+++ b/drivers/regulator/tps65185-regulator.c
@@ -664,6 +664,24 @@ static int tps65185_probe(struct i2c_client *client)
 	return 0;
 }
 
+static int __maybe_unused tps65185_resume(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+
+	struct tps65185 *tps;
+	int ret;
+
+	tps = i2c_get_clientdata(client);
+
+	ret = tps65185_set_config(dev, tps);
+	if (ret)
+		return dev_err_probe(dev, ret, "Failed to set config at resume\n");
+
+	return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(tps65185_pm, NULL, tps65185_resume);
+
 static const struct of_device_id tps65185_of_match[] = {
 	{ .compatible = "ti,tps65185" },
 	{}
@@ -674,6 +692,7 @@ static struct i2c_driver tps65185_driver = {
 	.probe_new	= tps65185_probe,
 	.driver		= {
 		.name		= "tps65185",
+		.pm		= &tps65185_pm,
 		.of_match_table	= tps65185_of_match,
 	},
 };
-- 
2.36.1