diff options
Diffstat (limited to 'sound/soc/fsl/fsl_utils.c')
| -rw-r--r-- | sound/soc/fsl/fsl_utils.c | 44 |
1 files changed, 0 insertions, 44 deletions
diff --git a/sound/soc/fsl/fsl_utils.c b/sound/soc/fsl/fsl_utils.c index 4370c28..b9e42b5 100644 --- a/sound/soc/fsl/fsl_utils.c +++ b/sound/soc/fsl/fsl_utils.c @@ -12,55 +12,11 @@ #include <linux/module.h> #include <linux/of_address.h> -#include <linux/of_i2c.h> #include <sound/soc.h> #include "fsl_utils.h" /** - * fsl_asoc_get_codec_dev_name - determine the dev_name for a codec node - * - * @np: pointer to the I2C device tree node - * @buf: buffer to be filled with the dev_name of the I2C device - * @len: the length of the buffer - * - * This function determines the dev_name for an I2C node. This is the name - * that would be returned by dev_name() if this device_node were part of a - * 'struct device' It's ugly and hackish, but it works. - * - * The dev_name for such devices include the bus number and I2C address. For - * example, "cs4270.0-004f". - */ -int fsl_asoc_get_codec_dev_name(struct device_node *np, char *buf, size_t len) -{ - const u32 *iprop; - u32 addr; - char temp[DAI_NAME_SIZE]; - struct i2c_client *i2c; - - of_modalias_node(np, temp, DAI_NAME_SIZE); - - iprop = of_get_property(np, "reg", NULL); - if (!iprop) - return -EINVAL; - - addr = be32_to_cpup(iprop); - - /* We need the adapter number */ - i2c = of_find_i2c_device_by_node(np); - if (!i2c) { - put_device(&i2c->dev); - return -ENODEV; - } - - snprintf(buf, len, "%s.%u-%04x", temp, i2c->adapter->nr, addr); - put_device(&i2c->dev); - - return 0; -} -EXPORT_SYMBOL(fsl_asoc_get_codec_dev_name); - -/** * fsl_asoc_get_dma_channel - determine the dma channel for a SSI node * * @ssi_np: pointer to the SSI device tree node |