linux-kernel - [PATCH] ASoC: mediatek: add missing initialization

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Message-ID: <20230301040835.6322-1-trevor.wu@mediatek.com>
Date:   Wed, 1 Mar 2023 12:08:35 +0800
From:   Trevor Wu <trevor.wu@...iatek.com>
To:     <broonie@...nel.org>, <lgirdwood@...il.com>, <tiwai@...e.com>,
        <perex@...ex.cz>, <matthias.bgg@...il.com>
CC:     <trevor.wu@...iatek.com>,
        <angelogioacchino.delregno@...labora.com>,
        <alsa-devel@...a-project.org>,
        <linux-mediatek@...ts.infradead.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH] ASoC: mediatek: add missing initialization

In etdm dai driver, dai_etdm_parse_of() function is used to parse dts
properties to get parameters. There are two for-loops which are
sepearately for all etdm and etdm input only cases. In etdm in only
loop, dai_id is not initialized, so it keeps the value intiliazed in
another loop.

In the patch, add the missing initialization to fix the unexpected
parsing problem.

Signed-off-by: Trevor Wu <trevor.wu@...iatek.com>
---
 sound/soc/mediatek/mt8188/mt8188-dai-etdm.c | 3 +++
 sound/soc/mediatek/mt8195/mt8195-dai-etdm.c | 3 +++
 2 files changed, 6 insertions(+)

diff --git a/sound/soc/mediatek/mt8188/mt8188-dai-etdm.c b/sound/soc/mediatek/mt8188/mt8188-dai-etdm.c
index 1c53d4cb19bb..7a37752d4244 100644
--- a/sound/soc/mediatek/mt8188/mt8188-dai-etdm.c
+++ b/sound/soc/mediatek/mt8188/mt8188-dai-etdm.c
@@ -2498,6 +2498,9 @@ static void mt8188_dai_etdm_parse_of(struct mtk_base_afe *afe)
 
 	/* etdm in only */
 	for (i = 0; i < 2; i++) {
+		dai_id = ETDM_TO_DAI_ID(i);
+		etdm_data = afe_priv->dai_priv[dai_id];
+
 		snprintf(prop, sizeof(prop), "mediatek,%s-chn-disabled",
 			 of_afe_etdms[i].name);
 
diff --git a/sound/soc/mediatek/mt8195/mt8195-dai-etdm.c b/sound/soc/mediatek/mt8195/mt8195-dai-etdm.c
index c2e268054773..f2c9a1fdbe0d 100644
--- a/sound/soc/mediatek/mt8195/mt8195-dai-etdm.c
+++ b/sound/soc/mediatek/mt8195/mt8195-dai-etdm.c
@@ -2567,6 +2567,9 @@ static void mt8195_dai_etdm_parse_of(struct mtk_base_afe *afe)
 
 	/* etdm in only */
 	for (i = 0; i < 2; i++) {
+		dai_id = ETDM_TO_DAI_ID(i);
+		etdm_data = afe_priv->dai_priv[dai_id];
+
 		ret = snprintf(prop, sizeof(prop),
 			       "mediatek,%s-chn-disabled",
 			       of_afe_etdms[i].name);
-- 
2.18.0