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ASoC: fsl: Don't set unused struct snd_pcm_hardware fields 

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>
Tested-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Lars-Peter Clausen 2014-01-06 14:19:09 +01:00 committed by Mark Brown
parent ff1b15acb4
commit b0a23b8b36
4 changed files with 0 additions and 17 deletions
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7
sound/soc/fsl/fsl_dma.c
View File

@ -55,10 +55,6 @@
SNDRV_PCM_FMTBIT_S32_BE | \
SNDRV_PCM_FMTBIT_U32_LE | \
SNDRV_PCM_FMTBIT_U32_BE)
#define FSLDMA_PCM_RATES (SNDRV_PCM_RATE_5512 | SNDRV_PCM_RATE_8000_192000 | \
SNDRV_PCM_RATE_CONTINUOUS)
struct dma_object {
struct snd_soc_platform_driver dai;
dma_addr_t ssi_stx_phys;
@ -140,9 +136,6 @@ static const struct snd_pcm_hardware fsl_dma_hardware = {
SNDRV_PCM_INFO_JOINT_DUPLEX |
SNDRV_PCM_INFO_PAUSE,
.formats = FSLDMA_PCM_FORMATS,
.rates = FSLDMA_PCM_RATES,
.rate_min = 5512,
.rate_max = 192000,
.period_bytes_min = 512, /* A reasonable limit */
.period_bytes_max = (u32) -1,
.periods_min = NUM_DMA_LINKS,

3
sound/soc/fsl/imx-pcm-dma.c
View File

@ -41,9 +41,6 @@ static const struct snd_pcm_hardware imx_pcm_hardware = {
SNDRV_PCM_INFO_PAUSE |
SNDRV_PCM_INFO_RESUME,
.formats = SNDRV_PCM_FMTBIT_S16_LE,
.rate_min = 8000,
.channels_min = 2,
.channels_max = 2,
.buffer_bytes_max = IMX_SSI_DMABUF_SIZE,
.period_bytes_min = 128,
.period_bytes_max = 65535, /* Limited by SDMA engine */

3
sound/soc/fsl/imx-pcm-fiq.c
View File

@ -162,9 +162,6 @@ static struct snd_pcm_hardware snd_imx_hardware = {
SNDRV_PCM_INFO_PAUSE |
SNDRV_PCM_INFO_RESUME,
.formats = SNDRV_PCM_FMTBIT_S16_LE,
.rate_min = 8000,
.channels_min = 2,
.channels_max = 2,
.buffer_bytes_max = IMX_SSI_DMABUF_SIZE,
.period_bytes_min = 128,
.period_bytes_max = 16 * 1024,

4
sound/soc/fsl/mpc5200_dma.c
View File

@ -200,10 +200,6 @@ static const struct snd_pcm_hardware psc_dma_hardware = {
SNDRV_PCM_INFO_BATCH,
.formats = SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_S16_BE |
SNDRV_PCM_FMTBIT_S24_BE | SNDRV_PCM_FMTBIT_S32_BE,
.rate_min = 8000,
.rate_max = 48000,
.channels_min = 1,
.channels_max = 2,
.period_bytes_max = 1024 * 1024,
.period_bytes_min = 32,
.periods_min = 2,