1 files changed, 75 insertions, 0 deletions
diff --git a/drivers/misc/misc-uclass.c b/drivers/misc/misc-uclass.c
new file mode 100644
index 00000000000..1389e146b61
--- /dev/null
+++ b/drivers/misc/misc-uclass.c
@@ -0,0 +1,75 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2010 Thomas Chou <thomas@wytron.com.tw>
+ */
+
+#define LOG_CATEGORY UCLASS_MISC
+
+#include <dm.h>
+#include <errno.h>
+#include <misc.h>
+
+/*
+ * Implement a  miscellaneous uclass for those do not fit other more
+ * general classes. A set of generic read, write and ioctl methods may
+ * be used to access the device.
+ */
+
+int misc_read(struct udevice *dev, int offset, void *buf, int size)
+{
+	const struct misc_ops *ops = device_get_ops(dev);
+
+	if (!ops->read)
+		return -ENOSYS;
+
+	return ops->read(dev, offset, buf, size);
+}
+
+int misc_write(struct udevice *dev, int offset, const void *buf, int size)
+{
+	const struct misc_ops *ops = device_get_ops(dev);
+
+	if (!ops->write)
+		return -ENOSYS;
+
+	return ops->write(dev, offset, buf, size);
+}
+
+int misc_ioctl(struct udevice *dev, unsigned long request, void *buf)
+{
+	const struct misc_ops *ops = device_get_ops(dev);
+
+	if (!ops->ioctl)
+		return -ENOSYS;
+
+	return ops->ioctl(dev, request, buf);
+}
+
+int misc_call(struct udevice *dev, int msgid, void *tx_msg, int tx_size,
+	      void *rx_msg, int rx_size)
+{
+	const struct misc_ops *ops = device_get_ops(dev);
+
+	if (!ops->call)
+		return -ENOSYS;
+
+	return ops->call(dev, msgid, tx_msg, tx_size, rx_msg, rx_size);
+}
+
+int misc_set_enabled(struct udevice *dev, bool val)
+{
+	const struct misc_ops *ops = device_get_ops(dev);
+
+	if (!ops->set_enabled)
+		return -ENOSYS;
+
+	return ops->set_enabled(dev, val);
+}
+
+UCLASS_DRIVER(misc) = {
+	.id		= UCLASS_MISC,
+	.name		= "misc",
+#if CONFIG_IS_ENABLED(OF_REAL)
+	.post_bind	= dm_scan_fdt_dev,
+#endif
+};