Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / sound / soc / codecs / ad193x-spi.c

diff --git a/kernel/sound/soc/codecs/ad193x-spi.c b/kernel/sound/soc/codecs/ad193x-spi.c
new file mode 100644 (file)
index 0000000..390cef9
--- /dev/null
+++ b/kernel/sound/soc/codecs/ad193x-spi.c
@@ -0,0 +1,48 @@
+/*
+ * AD1938/AD1939 audio driver
+ *
+ * Copyright 2014 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2.
+ */
+
+#include <linux/module.h>
+#include <linux/spi/spi.h>
+#include <linux/regmap.h>
+
+#include <sound/soc.h>
+
+#include "ad193x.h"
+
+static int ad193x_spi_probe(struct spi_device *spi)
+{
+       struct regmap_config config;
+
+       config = ad193x_regmap_config;
+       config.val_bits = 8;
+       config.reg_bits = 16;
+       config.read_flag_mask = 0x09;
+       config.write_flag_mask = 0x08;
+
+       return ad193x_probe(&spi->dev, devm_regmap_init_spi(spi, &config));
+}
+
+static int ad193x_spi_remove(struct spi_device *spi)
+{
+       snd_soc_unregister_codec(&spi->dev);
+       return 0;
+}
+
+static struct spi_driver ad193x_spi_driver = {
+       .driver = {
+               .name   = "ad193x",
+               .owner  = THIS_MODULE,
+       },
+       .probe          = ad193x_spi_probe,
+       .remove         = ad193x_spi_remove,
+};
+module_spi_driver(ad193x_spi_driver);
+
+MODULE_DESCRIPTION("ASoC AD1938/AD1939 audio CODEC driver");
+MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
+MODULE_LICENSE("GPL");