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Commit 6cfec04b authored by Michal Simek's avatar Michal Simek Committed by Mark Brown
Browse files

regmap: Separate regmap dev initialization 



Create special function regmap_attach_dev
which can be called separately out of regmap_init.

Signed-off-by: default avatarMichal Simek <michal.simek@xilinx.com>
Signed-off-by: default avatarMark Brown <broonie@linaro.org>
parent 38dbfb59

drivers/base/regmap/regmap.c

+28 −13
Original line number Diff line number Diff line
@@ -380,6 +380,28 @@ static void regmap_range_exit(struct regmap *map) 
	kfree(map->selector_work_buf);

}



int regmap_attach_dev(struct device *dev, struct regmap *map,

		      const struct regmap_config *config)

{

	struct regmap **m;



	map->dev = dev;



	regmap_debugfs_init(map, config->name);



	/* Add a devres resource for dev_get_regmap() */

	m = devres_alloc(dev_get_regmap_release, sizeof(*m), GFP_KERNEL);

	if (!m) {

		regmap_debugfs_exit(map);

		return -ENOMEM;

	}

	*m = map;

	devres_add(dev, m);



	return 0;

}

EXPORT_SYMBOL_GPL(regmap_attach_dev);



/**

 * regmap_init(): Initialise register map

 *
@@ -397,7 +419,7 @@ struct regmap *regmap_init(struct device *dev, 
			   void *bus_context,

			   const struct regmap_config *config)

{

	struct regmap *map, **m;

	struct regmap *map;

	int ret = -EINVAL;

	enum regmap_endian reg_endian, val_endian;

	int i, j;
@@ -734,25 +756,18 @@ struct regmap *regmap_init(struct device *dev, 
		}

	}



	regmap_debugfs_init(map, config->name);



	ret = regcache_init(map, config);

	if (ret != 0)

		goto err_range;



	/* Add a devres resource for dev_get_regmap() */

	m = devres_alloc(dev_get_regmap_release, sizeof(*m), GFP_KERNEL);

	if (!m) {

		ret = -ENOMEM;

		goto err_debugfs;

	}

	*m = map;

	devres_add(dev, m);

	if (dev)

		ret = regmap_attach_dev(dev, map, config);

		if (ret != 0)

			goto err_regcache;



	return map;



err_debugfs:

	regmap_debugfs_exit(map);

err_regcache:

	regcache_exit(map);

err_range:

	regmap_range_exit(map);

include/linux/regmap.h

+2 −0
Original line number Diff line number Diff line
@@ -317,6 +317,8 @@ struct regmap *regmap_init(struct device *dev, 
			   const struct regmap_bus *bus,

			   void *bus_context,

			   const struct regmap_config *config);

int regmap_attach_dev(struct device *dev, struct regmap *map,

				 const struct regmap_config *config);

struct regmap *regmap_init_i2c(struct i2c_client *i2c,

			       const struct regmap_config *config);

struct regmap *regmap_init_spi(struct spi_device *dev,