Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / sound / soc / codecs / pcm512x-spi.c

diff --git a/kernel/sound/soc/codecs/pcm512x-spi.c b/kernel/sound/soc/codecs/pcm512x-spi.c
new file mode 100644 (file)
index 0000000..7b64a9c
--- /dev/null
+++ b/kernel/sound/soc/codecs/pcm512x-spi.c
@@ -0,0 +1,73 @@
+/*
+ * Driver for the PCM512x CODECs
+ *
+ * Author:     Mark Brown <broonie@linaro.org>
+ *             Copyright 2014 Linaro Ltd
+ *
+ * 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.
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/spi/spi.h>
+
+#include "pcm512x.h"
+
+static int pcm512x_spi_probe(struct spi_device *spi)
+{
+       struct regmap *regmap;
+       int ret;
+
+       regmap = devm_regmap_init_spi(spi, &pcm512x_regmap);
+       if (IS_ERR(regmap)) {
+               ret = PTR_ERR(regmap);
+               return ret;
+       }
+
+       return pcm512x_probe(&spi->dev, regmap);
+}
+
+static int pcm512x_spi_remove(struct spi_device *spi)
+{
+       pcm512x_remove(&spi->dev);
+       return 0;
+}
+
+static const struct spi_device_id pcm512x_spi_id[] = {
+       { "pcm5121", },
+       { "pcm5122", },
+       { "pcm5141", },
+       { "pcm5142", },
+       { },
+};
+MODULE_DEVICE_TABLE(spi, pcm512x_spi_id);
+
+static const struct of_device_id pcm512x_of_match[] = {
+       { .compatible = "ti,pcm5121", },
+       { .compatible = "ti,pcm5122", },
+       { .compatible = "ti,pcm5141", },
+       { .compatible = "ti,pcm5142", },
+       { }
+};
+MODULE_DEVICE_TABLE(of, pcm512x_of_match);
+
+static struct spi_driver pcm512x_spi_driver = {
+       .probe          = pcm512x_spi_probe,
+       .remove         = pcm512x_spi_remove,
+       .id_table       = pcm512x_spi_id,
+       .driver = {
+               .name   = "pcm512x",
+               .owner  = THIS_MODULE,
+               .of_match_table = pcm512x_of_match,
+               .pm     = &pcm512x_pm_ops,
+       },
+};
+
+module_spi_driver(pcm512x_spi_driver);