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ASoC: Reintroduce do_spi_write()

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There is an unfortunate difference in return values between spi_write()
and i2c_master_send() so we need an adaptor function to translate.

Reported-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>
This commit is contained in:
Mark Brown 2011-05-11 19:25:42 +02:00
parent d5e4b0adf6
commit f7391fce6a
1 changed files with 15 additions and 1 deletions
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16
sound/soc/soc-cache.c
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@ -20,6 +20,20 @@
#include <trace/events/asoc.h>
#ifdef CONFIG_SPI_MASTER
static int do_spi_write(void *control, const char *data, int len)
{
struct spi_device *spi = control;
int ret;
ret = spi_write(spi, data, len);
if (ret < 0)
return ret;
return len;
}
#endif
static int do_hw_write(struct snd_soc_codec *codec, unsigned int reg,
unsigned int value, const void *data, int len)
{
@ -412,7 +426,7 @@ int snd_soc_codec_set_cache_io(struct snd_soc_codec *codec,
case SND_SOC_SPI:
#ifdef CONFIG_SPI_MASTER
codec->hw_write = (hw_write_t)spi_write;
codec->hw_write = do_spi_write;
#endif
codec->control_data = container_of(codec->dev,