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Commit a7ddf151 authored by Lars-Peter Clausen's avatar Lars-Peter Clausen Committed by Mark Brown
Browse files

ASoC: sh: 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: default avatarLars-Peter Clausen <lars@metafoo.de>
Signed-off-by: default avatarMark Brown <broonie@linaro.org>
parent 6ce4eac1
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+0 −17
Original line number Diff line number Diff line
@@ -89,29 +89,12 @@ struct camelot_pcm {
#define DMABRG_PREALLOC_BUFFER		32 * 1024
#define DMABRG_PREALLOC_BUFFER_MAX	32 * 1024

/* support everything the SSI supports */
#define DMABRG_RATES	\
	SNDRV_PCM_RATE_8000_192000

#define DMABRG_FMTS	\
	(SNDRV_PCM_FMTBIT_S8      | SNDRV_PCM_FMTBIT_U8      |	\
	 SNDRV_PCM_FMTBIT_S16_LE  | SNDRV_PCM_FMTBIT_U16_LE  |	\
	 SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_U20_3LE |	\
	 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_U24_3LE |	\
	 SNDRV_PCM_FMTBIT_S32_LE  | SNDRV_PCM_FMTBIT_U32_LE)

static struct snd_pcm_hardware camelot_pcm_hardware = {
	.info = (SNDRV_PCM_INFO_MMAP |
		SNDRV_PCM_INFO_INTERLEAVED |
		SNDRV_PCM_INFO_BLOCK_TRANSFER |
		SNDRV_PCM_INFO_MMAP_VALID |
		SNDRV_PCM_INFO_BATCH),
	.formats =	DMABRG_FMTS,
	.rates =	DMABRG_RATES,
	.rate_min =		8000,
	.rate_max =		192000,
	.channels_min =		2,
	.channels_max =		8,		/* max of the SSI */
	.buffer_bytes_max =	DMABRG_PERIOD_MAX,
	.period_bytes_min =	DMABRG_PERIOD_MIN,
	.period_bytes_max =	DMABRG_PERIOD_MAX / 2,
+0 −6
Original line number Diff line number Diff line
@@ -1777,12 +1777,6 @@ static struct snd_pcm_hardware fsi_pcm_hardware = {
			SNDRV_PCM_INFO_MMAP		|
			SNDRV_PCM_INFO_MMAP_VALID	|
			SNDRV_PCM_INFO_PAUSE,
	.formats		= FSI_FMTS,
	.rates			= FSI_RATES,
	.rate_min		= 8000,
	.rate_max		= 192000,
	.channels_min		= 2,
	.channels_max		= 2,
	.buffer_bytes_max	= 64 * 1024,
	.period_bytes_min	= 32,
	.period_bytes_max	= 8192,
+0 −6
Original line number Diff line number Diff line
@@ -628,12 +628,6 @@ static struct snd_pcm_hardware rsnd_pcm_hardware = {
			SNDRV_PCM_INFO_MMAP		|
			SNDRV_PCM_INFO_MMAP_VALID	|
			SNDRV_PCM_INFO_PAUSE,
	.formats		= RSND_FMTS,
	.rates			= RSND_RATES,
	.rate_min		= 8000,
	.rate_max		= 192000,
	.channels_min		= 2,
	.channels_max		= 2,
	.buffer_bytes_max	= 64 * 1024,
	.period_bytes_min	= 32,
	.period_bytes_max	= 8192,