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ASoC: meson: axg-iface: set continuous rates

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The axg TDM HW does not depend on a selected set of rates.
The hardware itself, just takes an input clock and work with it, regardless
of its rate. In this way, the rates TDM can take are continuous.

What might force the use of specific rate are the PLL available as clock
and/or the codecs facing the TDM HW. Either way, this constraint does not
belong in the TDM interface driver.

Allow any rate as far as TDM is concerned by setting
SNDRV_PCM_RATE_CONTINUOUS with an interval it has been tested with.

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Link: https://patch.msgid.link/20240920-asoc-axg-iface-continuous-v1-1-6075d7db0e61@baylibre.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Jerome Brunet 2024-09-20 19:22:05 +02:00 committed by Mark Brown
parent 55c39835ee
commit 3a02cc576a
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
2 changed files with 9 additions and 5 deletions
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12
sound/soc/meson/axg-tdm-interface.c
View File

@ -442,14 +442,18 @@ static const struct snd_soc_dai_driver axg_tdm_iface_dai_drv[] = {
.stream_name = "Playback",
.channels_min = 1,
.channels_max = AXG_TDM_CHANNEL_MAX,
.rates = AXG_TDM_RATES,
.rates = SNDRV_PCM_RATE_CONTINUOUS,
.rate_min = 5512,
.rate_max = 768000,
.formats = AXG_TDM_FORMATS,
},
.capture = {
.stream_name = "Capture",
.channels_min = 1,
.channels_max = AXG_TDM_CHANNEL_MAX,
.rates = AXG_TDM_RATES,
.rates = SNDRV_PCM_RATE_CONTINUOUS,
.rate_min = 5512,
.rate_max = 768000,
.formats = AXG_TDM_FORMATS,
},
.id = TDM_IFACE_PAD,
@ -461,7 +465,9 @@ static const struct snd_soc_dai_driver axg_tdm_iface_dai_drv[] = {
.stream_name = "Loopback",
.channels_min = 1,
.channels_max = AXG_TDM_CHANNEL_MAX,
.rates = AXG_TDM_RATES,
.rates = SNDRV_PCM_RATE_CONTINUOUS,
.rate_min = 5512,
.rate_max = 768000,
.formats = AXG_TDM_FORMATS,
},
.id = TDM_IFACE_LOOPBACK,

2
sound/soc/meson/axg-tdm.h
View File

@ -15,8 +15,6 @@
#define AXG_TDM_NUM_LANES 4
#define AXG_TDM_CHANNEL_MAX 128
#define AXG_TDM_RATES (SNDRV_PCM_RATE_5512 | \
SNDRV_PCM_RATE_8000_768000)
#define AXG_TDM_FORMATS (SNDRV_PCM_FMTBIT_S8 | \
SNDRV_PCM_FMTBIT_S16_LE | \
SNDRV_PCM_FMTBIT_S20_LE | \