linux-kernel - [PATCH] ASoC: sunxi: sun4i-i2s: Enable 32-bit audio formats

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Date: Tue, 26 Mar 2024 14:50:03 +1100
From: John Watts <contact@...kia.org>
To: Liam Girdwood <lgirdwood@...il.com>, Mark Brown <broonie@...nel.org>, 
 Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>, 
 Chen-Yu Tsai <wens@...e.org>, Jernej Skrabec <jernej.skrabec@...il.com>, 
 Samuel Holland <samuel@...lland.org>
Cc: linux-sound@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
 linux-sunxi@...ts.linux.dev, linux-kernel@...r.kernel.org, 
 John Watts <contact@...kia.org>
Subject: [PATCH] ASoC: sunxi: sun4i-i2s: Enable 32-bit audio formats

The I2S driver already supports and checks for 32-bit sample sizes,
so indicate this size is available for use in the DAI driver.

This change has been tested on the T113-S3, but it should work just
fine on older hardware as get_sr checks for sample size support
correctly according to each core's datasheet.

Signed-off-by: John Watts <contact@...kia.org>
---
This patch enables support for 32-bit audio in the sunxi I2S driver.

I have only tested this on the Allwinner T113 but I'm fairly
certain it will work on older boards.
---
 sound/soc/sunxi/sun4i-i2s.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sound/soc/sunxi/sun4i-i2s.c b/sound/soc/sunxi/sun4i-i2s.c
index a736f632bf0b..aeea852141c1 100644
--- a/sound/soc/sunxi/sun4i-i2s.c
+++ b/sound/soc/sunxi/sun4i-i2s.c
@@ -1103,7 +1103,8 @@ static const struct snd_soc_dai_ops sun4i_i2s_dai_ops = {
 
 #define SUN4I_FORMATS	(SNDRV_PCM_FMTBIT_S16_LE | \
 			 SNDRV_PCM_FMTBIT_S20_LE | \
-			 SNDRV_PCM_FMTBIT_S24_LE)
+			 SNDRV_PCM_FMTBIT_S24_LE | \
+			 SNDRV_PCM_FMTBIT_S32_LE)
 
 static struct snd_soc_dai_driver sun4i_i2s_dai = {
 	.capture = {

---
base-commit: 72fb52fb0ac44b6a1edd9bc390e44bce3acccd26
change-id: 20240326-sunxi_s32-f2ab25b8e688

Best regards,
-- 
John Watts <contact@...kia.org>