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ASoC: Automatically determine control_data for soc-cache users

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Since the provision of a struct device for the CODEC is now mandatory
we can use container_of() to locate the struct i2c_client and struct
spi_device for relevant devices, removing the need to manually set it
in each driver.

A further patch will automate selection of the control type based on
the bus_type of the struct device, further reducing the amount of
driver code required.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
This commit is contained in:
Mark Brown 2010-08-12 10:59:15 +01:00 committed by Liam Girdwood
parent 960d069791
commit a6d14342dc
1 changed files with 8 additions and 0 deletions
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8
sound/soc/soc-cache.c
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@ -584,11 +584,19 @@ int snd_soc_codec_set_cache_io(struct snd_soc_codec *codec,
#endif
if (io_types[i].i2c_read)
codec->hw_read = io_types[i].i2c_read;
codec->control_data = container_of(codec->dev,
struct i2c_client,
dev);
break;
case SND_SOC_SPI:
if (io_types[i].spi_write)
codec->hw_write = io_types[i].spi_write;
codec->control_data = container_of(codec->dev,
struct spi_device,
dev);
break;
}