dm: sound: Create a uclass for audio codecs

An audio codec provides a way to convert digital data to sound and vice
versa. Add a simple uclass which just supports setting the parameters for
the codec.

Signed-off-by: Simon Glass <sjg@chromium.org>

1 files changed, 26 insertions, 0 deletions

diff --git a/drivers/sound/codec-uclass.c b/drivers/sound/codec-uclass.c
new file mode 100644
index 0000000000..1ec77acfc1
--- /dev/null
+++ b/drivers/sound/codec-uclass.c
@@ -0,0 +1,26 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2018 Google LLC
+ * Written by Simon Glass <sjg@chromium.org>
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <audio_codec.h>
+
+int audio_codec_set_params(struct udevice *dev, int interface, int rate,
+			   int mclk_freq, int bits_per_sample, uint channels)
+{
+	struct audio_codec_ops *ops = audio_codec_get_ops(dev);
+
+	if (!ops->set_params)
+		return -ENOSYS;
+
+	return ops->set_params(dev, interface, rate, mclk_freq, bits_per_sample,
+			       channels);
+}
+
+UCLASS_DRIVER(audio_codec) = {
+	.id		= UCLASS_AUDIO_CODEC,
+	.name		= "audio-codec",
+};