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>
---
 sound/soc/meson/axg-tdm-interface.c | 12 +++++++++---
 sound/soc/meson/axg-tdm.h           |  2 --
 2 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/sound/soc/meson/axg-tdm-interface.c b/sound/soc/meson/axg-tdm-interface.c
index 62057c71f742..09103eef2a97 100644
--- a/sound/soc/meson/axg-tdm-interface.c
+++ b/sound/soc/meson/axg-tdm-interface.c
@@ -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,
diff --git a/sound/soc/meson/axg-tdm.h b/sound/soc/meson/axg-tdm.h
index 1a17f546ce6e..acfcd48f8a00 100644
--- a/sound/soc/meson/axg-tdm.h
+++ b/sound/soc/meson/axg-tdm.h
@@ -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 |	\

---
base-commit: cd87a98b53518e44cf3c1a7c1c07c869ce33bf83
change-id: 20240920-asoc-axg-iface-continuous-b94cfa234787

Best regards,
-- 
Jerome

On Fri, 20 Sep 2024 19:22:05 +0200, Jerome Brunet wrote:
> 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.
> 
> [...]

Applied to

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next

Thanks!

[1/1] ASoC: meson: axg-iface: set continuous rates
      commit: 3a02cc576accdccb22ffd2d6ac1f9788c7b4c7ce

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark