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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
commitace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch)
treeb2d64bc10158fdd5497876388cd68142ca374ed3 /drivers/mfd/wm8350-i2c.c
parentInitial commit. (diff)
downloadlinux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz
linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/mfd/wm8350-i2c.c')
-rw-r--r--drivers/mfd/wm8350-i2c.c64
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);