linux-kernel - [PATCH v3 2/3] ASoC: codecs: tlv320dac33: Add default value for burst

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Message-ID: <20250901184008.1249535-1-alex.t.tran@gmail.com>
Date: Mon,  1 Sep 2025 11:40:06 -0700
From: Alex Tran <alex.t.tran@...il.com>
To: broonie@...nel.org
Cc: lgirdwood@...il.com,
	shenghao-ding@...com,
	kevin-lu@...com,
	baojun.xu@...com,
	perex@...ex.cz,
	tiwai@...e.com,
	linux-sound@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Alex Tran <alex.t.tran@...il.com>
Subject: [PATCH v3 2/3] ASoC: codecs: tlv320dac33: Add default value for burst_bclkdiv

Add default value for field burst_bclkdiv as initializing it to 0
is incorrect, potentially leading to a divide by 0 issue.
Valid range is 2-17 per TI datasheet. 8 was chosen as a
dummy value.

Reference <https://www.ti.com/lit/ds/symlink/tlv320dac32.pdf>.

Signed-off-by: Alex Tran <alex.t.tran@...il.com>
---
Changes in v2:
- Included removal of struct 'tlv320dac33_platform_data'
  and header file 'tlv320dac33-plat.h'
Changes in v3:
- Split into separate patches as per request
- Moved inter-version changelogs after '---' line

 sound/soc/codecs/tlv320dac33.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/soc/codecs/tlv320dac33.c b/sound/soc/codecs/tlv320dac33.c
index 36b3de75a..feefc777c 100644
--- a/sound/soc/codecs/tlv320dac33.c
+++ b/sound/soc/codecs/tlv320dac33.c
@@ -1480,6 +1480,8 @@ static int dac33_i2c_probe(struct i2c_client *client)
 
 	i2c_set_clientdata(client, dac33);
 
+	if (!dac33->burst_bclkdiv)
+		dac33->burst_bclkdiv = 8;
 	if (!dac33->mode1_latency)
 		dac33->mode1_latency = 10000; /* 10ms */
 	dac33->irq = client->irq;
-- 
2.51.0