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Linux/sound/soc/codecs/sigmadsp-regmap.c

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  1 /*
  2  * Load Analog Devices SigmaStudio firmware files
  3  *
  4  * Copyright 2009-2011 Analog Devices Inc.
  5  *
  6  * Licensed under the GPL-2 or later.
  7  */
  8 
  9 #include <linux/regmap.h>
 10 #include <linux/export.h>
 11 #include <linux/module.h>
 12 
 13 #include "sigmadsp.h"
 14 
 15 static int sigmadsp_write_regmap(void *control_data,
 16         unsigned int addr, const uint8_t data[], size_t len)
 17 {
 18         return regmap_raw_write(control_data, addr,
 19                 data, len);
 20 }
 21 
 22 static int sigmadsp_read_regmap(void *control_data,
 23         unsigned int addr, uint8_t data[], size_t len)
 24 {
 25         return regmap_raw_read(control_data, addr,
 26                 data, len);
 27 }
 28 
 29 /**
 30  * devm_sigmadsp_init_i2c() - Initialize SigmaDSP instance
 31  * @dev: The parent device
 32  * @regmap: Regmap instance to use
 33  * @ops: The sigmadsp_ops to use for this instance
 34  * @firmware_name: Name of the firmware file to load
 35  *
 36  * Allocates a SigmaDSP instance and loads the specified firmware file.
 37  *
 38  * Returns a pointer to a struct sigmadsp on success, or a PTR_ERR() on error.
 39  */
 40 struct sigmadsp *devm_sigmadsp_init_regmap(struct device *dev,
 41         struct regmap *regmap, const struct sigmadsp_ops *ops,
 42         const char *firmware_name)
 43 {
 44         struct sigmadsp *sigmadsp;
 45 
 46         sigmadsp = devm_sigmadsp_init(dev, ops, firmware_name);
 47         if (IS_ERR(sigmadsp))
 48                 return sigmadsp;
 49 
 50         sigmadsp->control_data = regmap;
 51         sigmadsp->write = sigmadsp_write_regmap;
 52         sigmadsp->read = sigmadsp_read_regmap;
 53 
 54         return sigmadsp;
 55 }
 56 EXPORT_SYMBOL_GPL(devm_sigmadsp_init_regmap);
 57 
 58 MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
 59 MODULE_DESCRIPTION("SigmaDSP regmap firmware loader");
 60 MODULE_LICENSE("GPL");
 61 

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