linux-kernel - [PATCH v2 6/9] ASoC: amd: vangogh: Check Bit Clock rate before snd_soc_dai_set

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Date:   Fri, 17 Feb 2023 11:08:47 +0000
From:   Lucas Tanure <lucas.tanure@...labora.com>
To:     Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        Vijendar Mukunda <Vijendar.Mukunda@....com>
Cc:     alsa-devel@...a-project.org, linux-kernel@...r.kernel.org,
        Lucas Tanure <lucas.tanure@...labora.com>, kernel@...labora.com
Subject: [PATCH v2 6/9] ASoC: amd: vangogh: Check Bit Clock rate before snd_soc_dai_set_pll

Check bit clock is valid before setting it with snd_soc_dai_set_pll

Signed-off-by: Lucas Tanure <lucas.tanure@...labora.com>
---
 sound/soc/amd/vangogh/acp5x-mach.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/sound/soc/amd/vangogh/acp5x-mach.c b/sound/soc/amd/vangogh/acp5x-mach.c
index e7183d8ac3a2..c746605b63a1 100644
--- a/sound/soc/amd/vangogh/acp5x-mach.c
+++ b/sound/soc/amd/vangogh/acp5x-mach.c
@@ -119,13 +119,19 @@ static int acp5x_nau8821_hw_params(struct snd_pcm_substream *substream,
 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
 	struct snd_soc_card *card = rtd->card;
 	struct snd_soc_dai *dai = snd_soc_card_get_codec_dai(card, ACP5X_NUVOTON_CODEC_DAI);
-	int ret;
+	int ret, bclk;
 
 	ret = snd_soc_dai_set_sysclk(dai, NAU8821_CLK_FLL_BLK, 0, SND_SOC_CLOCK_IN);
 	if (ret < 0)
 		dev_err(card->dev, "can't set FS clock %d\n", ret);
-	ret = snd_soc_dai_set_pll(dai, 0, 0, snd_soc_params_to_bclk(params),
-				  params_rate(params) * 256);
+
+	bclk = snd_soc_params_to_bclk(params);
+	if (bclk < 0) {
+		dev_err(dai->dev, "Fail to get BCLK rate: %d\n", bclk);
+		return bclk;
+	}
+
+	ret = snd_soc_dai_set_pll(dai, 0, 0, bclk, params_rate(params) * 256);
 	if (ret < 0)
 		dev_err(card->dev, "can't set FLL: %d\n", ret);
 
-- 
2.39.2