linux-kernel - [PATCH] ASoC: qcom: sdm845: only setup slim ports once

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Date:   Tue, 16 Nov 2021 11:50:21 +0000
From:   Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
To:     broonie@...nel.org
Cc:     lgirdwood@...il.com, perex@...ex.cz, tiwai@...e.com,
        pierre-louis.bossart@...ux.intel.com, alsa-devel@...a-project.org,
        linux-kernel@...r.kernel.org,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Subject: [PATCH] ASoC: qcom: sdm845: only setup slim ports once

Currently same slim channel map setup for every dai link, which is redundant.
Fix this by adding a flag and conditionally setting these channel maps.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
---
 sound/soc/qcom/sdm845.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/sound/soc/qcom/sdm845.c b/sound/soc/qcom/sdm845.c
index 0adfc5708949..a1d5d96744b5 100644
--- a/sound/soc/qcom/sdm845.c
+++ b/sound/soc/qcom/sdm845.c
@@ -33,6 +33,7 @@
 struct sdm845_snd_data {
 	struct snd_soc_jack jack;
 	bool jack_setup;
+	bool slim_port_setup;
 	bool stream_prepared[AFE_PORT_MAX];
 	struct snd_soc_card *card;
 	uint32_t pri_mi2s_clk_count;
@@ -224,6 +225,7 @@ static int sdm845_dai_init(struct snd_soc_pcm_runtime *rtd)
 	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
 	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
 	struct sdm845_snd_data *pdata = snd_soc_card_get_drvdata(card);
+	struct snd_soc_dai_link *link = rtd->dai_link;
 	struct snd_jack *jack;
 	/*
 	 * Codec SLIMBUS configuration
@@ -276,6 +278,10 @@ static int sdm845_dai_init(struct snd_soc_pcm_runtime *rtd)
 		}
 		break;
 	case SLIMBUS_0_RX...SLIMBUS_6_TX:
+		/* setting up wcd multiple times for slim port is redundant */
+		if (pdata->slim_port_setup || !link->no_pcm)
+			return 0;
+
 		for_each_rtd_codec_dais(rtd, i, codec_dai) {
 			rval = snd_soc_dai_set_channel_map(codec_dai,
 							  ARRAY_SIZE(tx_ch),
@@ -295,8 +301,10 @@ static int sdm845_dai_init(struct snd_soc_pcm_runtime *rtd)
 				dev_warn(card->dev, "Failed to set jack: %d\n", rval);
 				return rval;
 			}
-
 		}
+
+		pdata->slim_port_setup = true;
+
 		break;
 	default:
 		break;
-- 
2.21.0