linux-kernel - [PATCH v2 09/13] ASoC: ti: davinci-i2s: Enable unexpected frame pulses detection

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Date: Tue,  2 Apr 2024 09:12:09 +0200
From: Bastien Curutchet <bastien.curutchet@...tlin.com>
To: Liam Girdwood <lgirdwood@...il.com>,
	Mark Brown <broonie@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Peter Ujfalusi <peter.ujfalusi@...il.com>,
	Jaroslav Kysela <perex@...ex.cz>,
	Takashi Iwai <tiwai@...e.com>,
	Bastien Curutchet <bastien.curutchet@...tlin.com>
Cc: linux-sound@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	alsa-devel@...a-project.org,
	Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
	herve.codina@...tlin.com,
	christophercordahi@...ometrics.ca
Subject: [PATCH v2 09/13] ASoC: ti: davinci-i2s: Enable unexpected frame pulses detection

McBSP can generate a SYNCERR when unexpected frame pulses are
detected. The driver always disables this feature and ignore the
unexpected frame pulses.

Enable the generation of SYNCERR by the McBSP. Unexpected frame
pulses are not ignored anymore.

Signed-off-by: Bastien Curutchet <bastien.curutchet@...tlin.com>
---
 sound/soc/ti/davinci-i2s.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/sound/soc/ti/davinci-i2s.c b/sound/soc/ti/davinci-i2s.c
index e51f05cda941..82a0dfa07cec 100644
--- a/sound/soc/ti/davinci-i2s.c
+++ b/sound/soc/ti/davinci-i2s.c
@@ -441,8 +441,10 @@ static int davinci_i2s_hw_params(struct snd_pcm_substream *substream,
 	struct davinci_mcbsp_dev *dev = snd_soc_dai_get_drvdata(dai);
 	struct snd_interval *i = NULL;
 	int mcbsp_word_length, master;
-	unsigned int rcr, xcr, clk_div, freq, framesize;
+	unsigned int clk_div, freq, framesize;
 	unsigned int srgr = 0;
+	unsigned int rcr = 0;
+	unsigned int xcr = 0;
 	u32 spcr;
 	snd_pcm_format_t fmt;
 	unsigned element_cnt = 1;
@@ -539,8 +541,6 @@ static int davinci_i2s_hw_params(struct snd_pcm_substream *substream,
 	}
 	davinci_mcbsp_write_reg(dev, DAVINCI_MCBSP_SRGR_REG, srgr);
 
-	rcr = DAVINCI_MCBSP_RCR_RFIG;
-	xcr = DAVINCI_MCBSP_XCR_XFIG;
 	if (dev->mode == MOD_DSP_B) {
 		rcr |= DAVINCI_MCBSP_RCR_RDATDLY(0);
 		xcr |= DAVINCI_MCBSP_XCR_XDATDLY(0);
-- 
2.44.0