[PATCH] ASoC: fsl-asoc-card: Allow passing the number of slots in use

[PATCH] ASoC: fsl-asoc-card: Allow passing the number of slots in use

[Fabio Estevam]

From: Fabio Estevam <festevam@denx.de>

Currently, fsl-asoc-card supports passing the width of the TDM slot, but
not the number of slots in use, as it harcodes it as two slots.

Add support for passing the number of slots in use.

Signed-off-by: Fabio Estevam <festevam@denx.de>
---
 sound/soc/fsl/fsl-asoc-card.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/sound/soc/fsl/fsl-asoc-card.c b/sound/soc/fsl/fsl-asoc-card.c
index 40870668ee24..98137c33f877 100644
--- a/sound/soc/fsl/fsl-asoc-card.c
+++ b/sound/soc/fsl/fsl-asoc-card.c
@@ -60,6 +60,7 @@ struct codec_priv {
  * @sysclk_dir: SYSCLK directions for set_sysclk()
  * @sysclk_id: SYSCLK ids for set_sysclk()
  * @slot_width: Slot width of each frame
+ * @slot_num: Number of slots of each frame
  *
  * Note: [1] for tx and [0] for rx
  */
@@ -68,6 +69,7 @@ struct cpu_priv {
 	u32 sysclk_dir[2];
 	u32 sysclk_id[2];
 	u32 slot_width;
+	u32 slot_num;
 };
 
 /**
@@ -189,7 +191,11 @@ static int fsl_asoc_card_hw_params(struct snd_pcm_substream *substream,
 	}
 
 	if (cpu_priv->slot_width) {
-		ret = snd_soc_dai_set_tdm_slot(asoc_rtd_to_cpu(rtd, 0), 0x3, 0x3, 2,
+		if (!cpu_priv->slot_num)
+			cpu_priv->slot_num = 2;
+
+		ret = snd_soc_dai_set_tdm_slot(asoc_rtd_to_cpu(rtd, 0), 0x3, 0x3,
+					       cpu_priv->slot_num,
 					       cpu_priv->slot_width);
 		if (ret && ret != -ENOTSUPP) {
 			dev_err(dev, "failed to set TDM slot for cpu dai\n");
-- 
2.34.1

Re: [PATCH] ASoC: fsl-asoc-card: Allow passing the number of slots in use

[Mark Brown]

On Fri, 16 Jun 2023 17:39:13 -0300, Fabio Estevam wrote:
> Currently, fsl-asoc-card supports passing the width of the TDM slot, but
> not the number of slots in use, as it harcodes it as two slots.
> 
> Add support for passing the number of slots in use.
> 
> 

Applied to

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

Thanks!

[1/1] ASoC: fsl-asoc-card: Allow passing the number of slots in use
      commit: 6ab11462c68499933bd9b5d52a710f4e18a9e43e

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