Add codec driver for hi6210 hdmi audio output on hi6220 boards.
This seems like a lot of code just to fill and register a
snd_soc_dai_driver to 2 channel, 16bits, 48k. I suspect there's
a better way.
Cc: Zhangfei Gao <zhangfei....@linaro.org>
Cc: Jingoo Han <jg1....@samsung.com>
Cc: Krzysztof Kozlowski <k.kozlow...@samsung.com>
Cc: Maxime Ripard <maxime.rip...@free-electrons.com>
Cc: Vinod Koul <vinod.k...@intel.com>
Cc: Dan Williams <dan.j.willi...@intel.com>
Cc: Liam Girdwood <lgirdw...@gmail.com>
Cc: Mark Brown <broo...@kernel.org>
Cc: Jaroslav Kysela <pe...@perex.cz>
Cc: Takashi Iwai <ti...@suse.com>
Cc: Wei Xu <xuw...@hisilicon.com>
Cc: Rob Herring <robh...@kernel.org>
Cc: Andy Green <a...@warmcat.com>
Signed-off-by: Andy Green <andy.gr...@linaro.org>
[jstultz: Forward ported to mainline, split out and reworked]
Signed-off-by: John Stultz <john.stu...@linaro.org>
---
v2:
* Folded in fixes from kbuildbot
* Split i2s and hdmi-card drivers up
* Refactored and cut down to just be a codec driver
sound/soc/hisilicon/Makefile | 3 +-
sound/soc/hisilicon/hi6210-hdmi-codec.c | 68 +++++++++++++++++++++++++++++++++
2 files changed, 70 insertions(+), 1 deletion(-)
create mode 100644 sound/soc/hisilicon/hi6210-hdmi-codec.c
diff --git a/sound/soc/hisilicon/Makefile b/sound/soc/hisilicon/Makefile
index e8095e2..c253775 100644
--- a/sound/soc/hisilicon/Makefile
+++ b/sound/soc/hisilicon/Makefile
@@ -1 +1,2 @@
-obj-$(CONFIG_SND_I2S_HI6210_I2S) += hi6210-i2s.o
+obj-$(CONFIG_SND_I2S_HI6210_I2S) += hi6210-i2s.o \
+ hi6210-hdmi-codec.o
diff --git a/sound/soc/hisilicon/hi6210-hdmi-codec.c
b/sound/soc/hisilicon/hi6210-hdmi-codec.c
new file mode 100644
index 0000000..5dd54e1
--- /dev/null
+++ b/sound/soc/hisilicon/hi6210-hdmi-codec.c
@@ -0,0 +1,68 @@
+/*
+ * linux/sound/soc/hisilicon/hi6210-hdmi-codec.c
+ *
+ * Copyright (C) 2015 Linaro, Ltd
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 2 of the License.
+ */
+
+#include <linux/module.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+
+static struct snd_soc_dai_driver hi6210_hdmi_dai = {
+ .name = "hi6210_hdmi_dai",
+ .playback = {
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_48000,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE,
+ },
+};
+
+static struct snd_soc_codec_driver hi6210_hdmi_codec;
+
+static int hi6210_hdmi_probe(struct platform_device *pdev)
+{
+ int ret;
+
+ ret = snd_soc_register_codec(&pdev->dev, &hi6210_hdmi_codec,
+ &hi6210_hdmi_dai, 1);
+ if (ret) {
+ dev_err(&pdev->dev, "snd_soc_register_codec failed (%d)\n",
+ ret);
+ return ret;
+ }
+ return 0;
+}
+
+static int hi6210_hdmi_remove(struct platform_device *pdev)
+{
+ snd_soc_unregister_codec(&pdev->dev);
+ return 0;
+}
+
+static const struct of_device_id hi6210_hdmi_dt_ids[] = {
+ { .compatible = "hisilicon,hi6210-hdmi-audio-codec" },
+ { /* sentinel */ }
+};
+
+MODULE_DEVICE_TABLE(of, hi6210_hdmi_dt_ids);
+
+static struct platform_driver hi6210_hdmi_driver = {
+ .driver = {
+ .name = "hi6210-hdmi-audio",
+ .of_match_table = hi6210_hdmi_dt_ids,
+ },
+ .probe = hi6210_hdmi_probe,
+ .remove = hi6210_hdmi_remove,
+};
+
+module_platform_driver(hi6210_hdmi_driver);
+
+MODULE_AUTHOR("andy.gr...@linaro.org");
+MODULE_DESCRIPTION("Hisilicon HDMI codec driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:hi6210-hdmi-audio");
--
1.9.1
