From: phucduc.bui@gmail.com
To: Andrew Jackson <Andrew.Jackson@arm.com>,
Mark Brown <broonie@kernel.org>,
Xingyu Wu <xingyu.wu@starfivetech.com>
Cc: Tim Bird <tim.bird@sony.com>,
Yuri Zaporozhets <yuriz@vodafonemail.de>,
Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>,
Maxim Kochetkov <fido_max@inbox.ru>,
Liam Girdwood <lgirdwood@gmail.com>,
Jaroslav Kysela <perex@perex.cz>, Takashi Iwai <tiwai@suse.com>,
linux-sound@vger.kernel.org, linux-kernel@vger.kernel.org,
bui duc phuc <phucduc.bui@gmail.com>
Subject: [PATCH 1/5] ASoC: dwc: Fix bit clock rate in TDM mode
Date: Fri, 6 Nov 2026 18:29:36 +0700 [thread overview]
Message-ID: <20261106112940.53550-2-phucduc.bui@gmail.com> (raw)
In-Reply-To: <20261106112940.53550-1-phucduc.bui@gmail.com>
From: bui duc phuc <phucduc.bui@gmail.com>
The bit clock is computed as rate * data_width * 2, which only fits
a two-slot I2S frame. Use rate * data_width * tdm_slots in TDM mode.
Fixes: 221acc16aee1 ("ASoC: dwc: Add TDM mode support")
Signed-off-by: bui duc phuc <phucduc.bui@gmail.com>
---
sound/soc/dwc/dwc-i2s.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/sound/soc/dwc/dwc-i2s.c b/sound/soc/dwc/dwc-i2s.c
index dbda943cfaf3..9007ba1157ac 100644
--- a/sound/soc/dwc/dwc-i2s.c
+++ b/sound/soc/dwc/dwc-i2s.c
@@ -331,7 +331,10 @@ static int dw_i2s_hw_params(struct snd_pcm_substream *substream,
}
} else {
u32 bitclk = config->sample_rate *
- config->data_width * 2;
+ config->data_width * 2;
+ if (dev->tdm_slots)
+ bitclk = config->sample_rate *
+ config->data_width * dev->tdm_slots;
ret = clk_set_rate(dev->clk, bitclk);
if (ret) {
--
2.43.0
next prev parent reply other threads:[~2026-11-06 11:30 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-06 11:29 [PATCH 0/5] Fix several issues in the DesignWare I2S driver phucduc.bui
2026-11-06 11:29 ` phucduc.bui [this message]
2026-11-06 11:29 ` [PATCH 2/5] ASoC: dwc: Fix error handling in dw_i2s_set_fmt() phucduc.bui
2026-11-06 11:29 ` [PATCH 3/5] ASoC: dwc: Fix channels_max derived from COMP_PARAM_1 phucduc.bui
2026-11-06 11:29 ` [PATCH 4/5] ASoC: dwc: Fix DMA fifo_size calculation phucduc.bui
2026-11-06 11:29 ` [PATCH 5/5] ASoC: dwc: Remove redundant error messages phucduc.bui
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