Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 64 insertions, 0 deletions

diff --git a/drivers/mfd/wm8350-i2c.c b/drivers/mfd/wm8350-i2c.c
new file mode 100644
index 0000000000..c2a7d70699
--- /dev/null
+++ b/drivers/mfd/wm8350-i2c.c
@@ -0,0 +1,64 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * wm8350-i2c.c  --  Generic I2C driver for Wolfson WM8350 PMIC
+ *
+ * Copyright 2007, 2008 Wolfson Microelectronics PLC.
+ *
+ * Author: Liam Girdwood
+ *         linux@wolfsonmicro.com
+ */
+
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/i2c.h>
+#include <linux/platform_device.h>
+#include <linux/mfd/wm8350/core.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+
+static int wm8350_i2c_probe(struct i2c_client *i2c)
+{
+	struct wm8350 *wm8350;
+	struct wm8350_platform_data *pdata = dev_get_platdata(&i2c->dev);
+	int ret = 0;
+
+	wm8350 = devm_kzalloc(&i2c->dev, sizeof(struct wm8350), GFP_KERNEL);
+	if (wm8350 == NULL)
+		return -ENOMEM;
+
+	wm8350->regmap = devm_regmap_init_i2c(i2c, &wm8350_regmap);
+	if (IS_ERR(wm8350->regmap)) {
+		ret = PTR_ERR(wm8350->regmap);
+		dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
+			ret);
+		return ret;
+	}
+
+	i2c_set_clientdata(i2c, wm8350);
+	wm8350->dev = &i2c->dev;
+
+	return wm8350_device_init(wm8350, i2c->irq, pdata);
+}
+
+static const struct i2c_device_id wm8350_i2c_id[] = {
+	{ "wm8350", 0 },
+	{ "wm8351", 0 },
+	{ "wm8352", 0 },
+	{ }
+};
+
+static struct i2c_driver wm8350_i2c_driver = {
+	.driver = {
+		   .name = "wm8350",
+		   .suppress_bind_attrs = true,
+	},
+	.probe = wm8350_i2c_probe,
+	.id_table = wm8350_i2c_id,
+};
+
+static int __init wm8350_i2c_init(void)
+{
+	return i2c_add_driver(&wm8350_i2c_driver);
+}
+/* init early so consumer devices can complete system boot */
+subsys_initcall(wm8350_i2c_init);