linux-kernel - [PATCH] ASoC: stm32: sai: Use of_device_get_match

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Message-Id: <20220519124235.21100-1-tangbin@cmss.chinamobile.com>
Date:   Thu, 19 May 2022 20:42:35 +0800
From:   Tang Bin <tangbin@...s.chinamobile.com>
To:     olivier.moysan@...s.st.com, arnaud.pouliquen@...s.st.com,
        lgirdwood@...il.com, broonie@...nel.org, perex@...ex.cz,
        tiwai@...e.com, mcoquelin.stm32@...il.com,
        alexandre.torgue@...s.st.com
Cc:     alsa-devel@...a-project.org,
        linux-stm32@...md-mailman.stormreply.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Tang Bin <tangbin@...s.chinamobile.com>
Subject: [PATCH] ASoC: stm32: sai: Use of_device_get_match_data() to simplify code

Retrieve of match data, it's better and cleaner to use
'of_device_get_match_data' over 'of_match_device'.

Signed-off-by: Tang Bin <tangbin@...s.chinamobile.com>
---
 sound/soc/stm/stm32_sai_sub.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/sound/soc/stm/stm32_sai_sub.c b/sound/soc/stm/stm32_sai_sub.c
index dd636af81..d300605a2 100644
--- a/sound/soc/stm/stm32_sai_sub.c
+++ b/sound/soc/stm/stm32_sai_sub.c
@@ -1500,7 +1500,6 @@ static int stm32_sai_sub_parse_of(struct platform_device *pdev,
 static int stm32_sai_sub_probe(struct platform_device *pdev)
 {
 	struct stm32_sai_sub_data *sai;
-	const struct of_device_id *of_id;
 	const struct snd_dmaengine_pcm_config *conf = &stm32_sai_pcm_config;
 	int ret;
 
@@ -1508,10 +1507,9 @@ static int stm32_sai_sub_probe(struct platform_device *pdev)
 	if (!sai)
 		return -ENOMEM;
 
-	of_id = of_match_device(stm32_sai_sub_ids, &pdev->dev);
-	if (!of_id)
+	sai->id = (uintptr_t)of_device_get_match_data(&pdev->dev);
+	if (!sai->id)
 		return -EINVAL;
-	sai->id = (uintptr_t)of_id->data;
 
 	sai->pdev = pdev;
 	mutex_init(&sai->ctrl_lock);
-- 
2.20.1.windows.1