1 files changed, 109 insertions, 0 deletions
diff --git a/sound/soc/codecs/hdmi.c b/sound/soc/codecs/hdmi.c
new file mode 100644
index 000000000..bd42ad34e
--- /dev/null
+++ b/sound/soc/codecs/hdmi.c
@@ -0,0 +1,109 @@
+/*
+ * ALSA SoC codec driver for HDMI audio codecs.
+ * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/
+ * Author: Ricardo Neri <ricardo.neri@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+#include <linux/module.h>
+#include <sound/soc.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+
+#define DRV_NAME "hdmi-audio-codec"
+
+static const struct snd_soc_dapm_widget hdmi_widgets[] = {
+	SND_SOC_DAPM_INPUT("RX"),
+	SND_SOC_DAPM_OUTPUT("TX"),
+};
+
+static const struct snd_soc_dapm_route hdmi_routes[] = {
+	{ "Capture", NULL, "RX" },
+	{ "TX", NULL, "Playback" },
+};
+
+static struct snd_soc_dai_driver hdmi_codec_dai = {
+	.name = "hdmi-hifi",
+	.playback = {
+		.stream_name = "Playback",
+		.channels_min = 2,
+		.channels_max = 8,
+		.rates = SNDRV_PCM_RATE_32000 |
+			SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |
+			SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 |
+			SNDRV_PCM_RATE_176400 | SNDRV_PCM_RATE_192000,
+		.formats = SNDRV_PCM_FMTBIT_S16_LE |
+			SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE,
+		.sig_bits = 24,
+	},
+	.capture = {
+		.stream_name = "Capture",
+		.channels_min = 2,
+		.channels_max = 2,
+		.rates = SNDRV_PCM_RATE_32000 |
+			SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |
+			SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 |
+			SNDRV_PCM_RATE_176400 | SNDRV_PCM_RATE_192000,
+		.formats = SNDRV_PCM_FMTBIT_S16_LE |
+			SNDRV_PCM_FMTBIT_S24_LE,
+	},
+
+};
+
+#ifdef CONFIG_OF
+static const struct of_device_id hdmi_audio_codec_ids[] = {
+	{ .compatible = "linux,hdmi-audio", },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, hdmi_audio_codec_ids);
+#endif
+
+static struct snd_soc_codec_driver hdmi_codec = {
+	.dapm_widgets = hdmi_widgets,
+	.num_dapm_widgets = ARRAY_SIZE(hdmi_widgets),
+	.dapm_routes = hdmi_routes,
+	.num_dapm_routes = ARRAY_SIZE(hdmi_routes),
+	.ignore_pmdown_time = true,
+};
+
+static int hdmi_codec_probe(struct platform_device *pdev)
+{
+	return snd_soc_register_codec(&pdev->dev, &hdmi_codec,
+			&hdmi_codec_dai, 1);
+}
+
+static int hdmi_codec_remove(struct platform_device *pdev)
+{
+	snd_soc_unregister_codec(&pdev->dev);
+	return 0;
+}
+
+static struct platform_driver hdmi_codec_driver = {
+	.driver		= {
+		.name	= DRV_NAME,
+		.of_match_table = of_match_ptr(hdmi_audio_codec_ids),
+	},
+
+	.probe		= hdmi_codec_probe,
+	.remove		= hdmi_codec_remove,
+};
+
+module_platform_driver(hdmi_codec_driver);
+
+MODULE_AUTHOR("Ricardo Neri <ricardo.neri@ti.com>");
+MODULE_DESCRIPTION("ASoC generic HDMI codec driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:" DRV_NAME);