Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / sound / soc / codecs / sigmadsp-regmap.c

diff --git a/kernel/sound/soc/codecs/sigmadsp-regmap.c b/kernel/sound/soc/codecs/sigmadsp-regmap.c
new file mode 100644 (file)
index 0000000..912861b
--- /dev/null
+++ b/kernel/sound/soc/codecs/sigmadsp-regmap.c
@@ -0,0 +1,60 @@
+/*
+ * Load Analog Devices SigmaStudio firmware files
+ *
+ * Copyright 2009-2011 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <linux/regmap.h>
+#include <linux/export.h>
+#include <linux/module.h>
+
+#include "sigmadsp.h"
+
+static int sigmadsp_write_regmap(void *control_data,
+       unsigned int addr, const uint8_t data[], size_t len)
+{
+       return regmap_raw_write(control_data, addr,
+               data, len);
+}
+
+static int sigmadsp_read_regmap(void *control_data,
+       unsigned int addr, uint8_t data[], size_t len)
+{
+       return regmap_raw_read(control_data, addr,
+               data, len);
+}
+
+/**
+ * devm_sigmadsp_init_i2c() - Initialize SigmaDSP instance
+ * @dev: The parent device
+ * @regmap: Regmap instance to use
+ * @ops: The sigmadsp_ops to use for this instance
+ * @firmware_name: Name of the firmware file to load
+ *
+ * Allocates a SigmaDSP instance and loads the specified firmware file.
+ *
+ * Returns a pointer to a struct sigmadsp on success, or a PTR_ERR() on error.
+ */
+struct sigmadsp *devm_sigmadsp_init_regmap(struct device *dev,
+       struct regmap *regmap, const struct sigmadsp_ops *ops,
+       const char *firmware_name)
+{
+       struct sigmadsp *sigmadsp;
+
+       sigmadsp = devm_sigmadsp_init(dev, ops, firmware_name);
+       if (IS_ERR(sigmadsp))
+               return sigmadsp;
+
+       sigmadsp->control_data = regmap;
+       sigmadsp->write = sigmadsp_write_regmap;
+       sigmadsp->read = sigmadsp_read_regmap;
+
+       return sigmadsp;
+}
+EXPORT_SYMBOL_GPL(devm_sigmadsp_init_regmap);
+
+MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
+MODULE_DESCRIPTION("SigmaDSP regmap firmware loader");
+MODULE_LICENSE("GPL");