sound/soc/codecs/sigmadsp-regmap.c

   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");