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kernel/linux-rt-4.4.41/sound/soc/codecs/sigmadsp-regmap.c 1.53 KB
5113f6f70   김현기   kernel add
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  /*
   * 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");