ASoC: davinci: Don't set unused struct snd_pcm_hardware fields
authorLars-Peter Clausen <lars@metafoo.de>
Fri, 20 Dec 2013 13:20:10 +0000 (14:20 +0100)
committerMark Brown <broonie@linaro.org>
Tue, 24 Dec 2013 12:01:17 +0000 (12:01 +0000)
The ASoC core assumes that the PCM component of the ASoC card transparently
moves data around and does not impose any restrictions on the memory layout or
the transfer speed. It ignores all fields from the snd_pcm_hardware struct for
the PCM driver that are related to this. Setting these fields in the PCM driver
might suggest otherwise though, so rather not set them.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
sound/soc/davinci/davinci-pcm.c

index fb5d107f56034eebec7003878eceded711a51769..14145cdf8a11397494af3ac9d09454b88e774163 100644 (file)
@@ -46,33 +46,11 @@ static void print_buf_info(int slot, char *name)
 }
 #endif
 
-#define DAVINCI_PCM_FMTBITS    (\
-                               SNDRV_PCM_FMTBIT_S8     |\
-                               SNDRV_PCM_FMTBIT_U8     |\
-                               SNDRV_PCM_FMTBIT_S16_LE |\
-                               SNDRV_PCM_FMTBIT_S16_BE |\
-                               SNDRV_PCM_FMTBIT_U16_LE |\
-                               SNDRV_PCM_FMTBIT_U16_BE |\
-                               SNDRV_PCM_FMTBIT_S24_LE |\
-                               SNDRV_PCM_FMTBIT_S24_BE |\
-                               SNDRV_PCM_FMTBIT_U24_LE |\
-                               SNDRV_PCM_FMTBIT_U24_BE |\
-                               SNDRV_PCM_FMTBIT_S32_LE |\
-                               SNDRV_PCM_FMTBIT_S32_BE |\
-                               SNDRV_PCM_FMTBIT_U32_LE |\
-                               SNDRV_PCM_FMTBIT_U32_BE)
-
 static struct snd_pcm_hardware pcm_hardware_playback = {
        .info = (SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BLOCK_TRANSFER |
                 SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID |
                 SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME|
                 SNDRV_PCM_INFO_BATCH),
-       .formats = DAVINCI_PCM_FMTBITS,
-       .rates = SNDRV_PCM_RATE_8000_192000 | SNDRV_PCM_RATE_KNOT,
-       .rate_min = 8000,
-       .rate_max = 192000,
-       .channels_min = 2,
-       .channels_max = 384,
        .buffer_bytes_max = 128 * 1024,
        .period_bytes_min = 32,
        .period_bytes_max = 8 * 1024,
@@ -86,12 +64,6 @@ static struct snd_pcm_hardware pcm_hardware_capture = {
                 SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID |
                 SNDRV_PCM_INFO_PAUSE |
                 SNDRV_PCM_INFO_BATCH),
-       .formats = DAVINCI_PCM_FMTBITS,
-       .rates = SNDRV_PCM_RATE_8000_192000 | SNDRV_PCM_RATE_KNOT,
-       .rate_min = 8000,
-       .rate_max = 192000,
-       .channels_min = 2,
-       .channels_max = 384,
        .buffer_bytes_max = 128 * 1024,
        .period_bytes_min = 32,
        .period_bytes_max = 8 * 1024,