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From 81ddd8a5dbf200938ef70efaa9254742f49d3034 Mon Sep 17 00:00:00 2001
From: Andrey Gusakov <andrey.gusakov@cogentembedded.com>
Date: Thu, 10 Aug 2017 16:29:01 +0300
Subject: [PATCH] ASoC: add dummy device for WL18xx PCM audio
Signed-off-by: Andrey Gusakov <andrey.gusakov@cogentembedded.com>
---
sound/soc/codecs/Kconfig | 3 ++
sound/soc/codecs/Makefile | 2 ++
sound/soc/codecs/wl18xx.c | 72 +++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 77 insertions(+)
create mode 100644 sound/soc/codecs/wl18xx.c
diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index 140f1597966a..6658d05f1648 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -625,6 +625,9 @@ config SND_SOC_PCM3168A_SPI
config SND_SOC_SI468X
tristate "Dummy sound driver for Si468x radio"
+config SND_SOC_WL18XX
+ tristate "Dummy sound driver for WL18xx BT"
+
config SND_SOC_PCM5102A
tristate
diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile
index 8e02341428d8..17fd313489de 100644
--- a/sound/soc/codecs/Makefile
+++ b/sound/soc/codecs/Makefile
@@ -126,6 +126,7 @@ snd-soc-sigmadsp-i2c-objs := sigmadsp-i2c.o
snd-soc-sigmadsp-regmap-objs := sigmadsp-regmap.o
snd-soc-si476x-objs := si476x.o
snd-soc-si468x-objs := si468x.o
+snd-soc-wl18xx-objs := wl18xx.o
snd-soc-sirf-audio-codec-objs := sirf-audio-codec.o
snd-soc-sn95031-objs := sn95031.o
snd-soc-spdif-tx-objs := spdif_transmitter.o
@@ -349,6 +350,7 @@ obj-$(CONFIG_SND_SOC_SIGMADSP_I2C) += snd-soc-sigmadsp-i2c.o
obj-$(CONFIG_SND_SOC_SIGMADSP_REGMAP) += snd-soc-sigmadsp-regmap.o
obj-$(CONFIG_SND_SOC_SI476X) += snd-soc-si476x.o
obj-$(CONFIG_SND_SOC_SI468X) += snd-soc-si468x.o
+obj-$(CONFIG_SND_SOC_WL18XX) += snd-soc-wl18xx.o
obj-$(CONFIG_SND_SOC_SN95031) +=snd-soc-sn95031.o
obj-$(CONFIG_SND_SOC_SPDIF) += snd-soc-spdif-rx.o snd-soc-spdif-tx.o
obj-$(CONFIG_SND_SOC_SSM2518) += snd-soc-ssm2518.o
diff --git a/sound/soc/codecs/wl18xx.c b/sound/soc/codecs/wl18xx.c
new file mode 100644
index 000000000000..50ebbd4c0013
--- /dev/null
+++ b/sound/soc/codecs/wl18xx.c
@@ -0,0 +1,72 @@
+/*
+ * Dummy sound driver for wl18xx BT modules
+ * Copyright 2016 Andrey Gusakov <andrey.gusakov@cogentembedded.com>
+ *
+ * Based on: Driver for the DFBM-CS320 bluetooth module
+ * Copyright 2011 Lars-Peter Clausen <lars@metafoo.de>
+ *
+ * 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; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+
+#include <sound/soc.h>
+
+static struct snd_soc_dai_driver wl18xx_dai = {
+ .name = "wl18xx-pcm",
+ .capture = {
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_48000,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE,
+ },
+ .playback = {
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_48000,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE,
+ },
+};
+
+static struct snd_soc_codec_driver soc_codec_dev_wl18xx;
+
+static int wl18xx_probe(struct platform_device *pdev)
+{
+ return snd_soc_register_codec(&pdev->dev, &soc_codec_dev_wl18xx,
+ &wl18xx_dai, 1);
+}
+
+static int wl18xx_remove(struct platform_device *pdev)
+{
+ snd_soc_unregister_codec(&pdev->dev);
+
+ return 0;
+}
+
+static const struct of_device_id wl18xx_of_match[] = {
+ { .compatible = "ti,wl18xx-pcm", },
+ { }
+};
+MODULE_DEVICE_TABLE(of, wl18xx_of_match);
+
+static struct platform_driver wl18xx_driver = {
+ .driver = {
+ .name = "wl18xx-codec",
+ .of_match_table = wl18xx_of_match,
+ .owner = THIS_MODULE,
+ },
+ .probe = wl18xx_probe,
+ .remove = wl18xx_remove,
+};
+
+module_platform_driver(wl18xx_driver);
+
+MODULE_AUTHOR("Andrey Gusakov <andrey.gusakov@cogentembedded.com>");
+MODULE_DESCRIPTION("ASoC wl18xx driver");
+MODULE_LICENSE("GPL");
--
2.13.0
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