linux-kernel - [PATCH] ASoC: qcom: sc8280xp: enable primary mi2s

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Message-ID: <20250203113857.34728-1-danila@jiaxyga.com>
Date: Mon,  3 Feb 2025 14:38:57 +0300
From: Danila Tikhonov <danila@...xyga.com>
To: srinivas.kandagatla@...aro.org,
	lgirdwood@...il.com,
	broonie@...nel.org,
	perex@...ex.cz,
	tiwai@...e.com
Cc: linux-sound@...r.kernel.org,
	linux-arm-msm@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux@...nlining.org,
	~postmarketos/upstreaming@...ts.sr.ht,
	Danila Tikhonov <danila@...xyga.com>
Subject: [PATCH] ASoC: qcom: sc8280xp: enable primary mi2s

When using primary mi2s on sc8280xp-compatible SoCs, the correct clock
needs to get enabled to be able to use the mi2s interface.

Signed-off-by: Danila Tikhonov <danila@...xyga.com>
---
 sound/soc/qcom/sc8280xp.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/sound/soc/qcom/sc8280xp.c b/sound/soc/qcom/sc8280xp.c
index 311377317176..03687de1ebb0 100644
--- a/sound/soc/qcom/sc8280xp.c
+++ b/sound/soc/qcom/sc8280xp.c
@@ -14,6 +14,8 @@
 #include "common.h"
 #include "sdw.h"
 
+#define MI2S_BCLK_RATE	1536000
+
 struct sc8280xp_snd_data {
 	bool stream_prepared[AFE_PORT_MAX];
 	struct snd_soc_card *card;
@@ -25,13 +27,24 @@ struct sc8280xp_snd_data {
 
 static int sc8280xp_snd_init(struct snd_soc_pcm_runtime *rtd)
 {
+	unsigned int codec_dai_fmt = SND_SOC_DAIFMT_BC_FC;
+	unsigned int fmt = SND_SOC_DAIFMT_BP_FP;
 	struct sc8280xp_snd_data *data = snd_soc_card_get_drvdata(rtd->card);
+	struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0);
 	struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
 	struct snd_soc_card *card = rtd->card;
 	struct snd_soc_jack *dp_jack  = NULL;
 	int dp_pcm_id = 0;
 
 	switch (cpu_dai->id) {
+	case PRIMARY_MI2S_RX:
+		codec_dai_fmt |= SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_I2S;
+		snd_soc_dai_set_sysclk(cpu_dai,
+			Q6AFE_LPASS_CLK_ID_PRI_MI2S_IBIT,
+			MI2S_BCLK_RATE, SNDRV_PCM_STREAM_PLAYBACK);
+		snd_soc_dai_set_fmt(cpu_dai, fmt);
+		snd_soc_dai_set_fmt(codec_dai, codec_dai_fmt);
+		break;
 	case WSA_CODEC_DMA_RX_0:
 	case WSA_CODEC_DMA_RX_1:
 		/*
-- 
2.48.1