linux-kernel - [PATCH 6/6] ASoC: fsl_easrc: enable memory to memory function

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Message-Id: <1688002673-28493-7-git-send-email-shengjiu.wang@nxp.com>
Date:   Thu, 29 Jun 2023 09:37:53 +0800
From:   Shengjiu Wang <shengjiu.wang@....com>
To:     tfiga@...omium.org, m.szyprowski@...sung.com, mchehab@...nel.org,
        linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
        shengjiu.wang@...il.com, Xiubo.Lee@...il.com, festevam@...il.com,
        nicoleotsuka@...il.com, lgirdwood@...il.com, broonie@...nel.org,
        perex@...ex.cz, tiwai@...e.com, alsa-devel@...a-project.org,
        linuxppc-dev@...ts.ozlabs.org
Subject: [PATCH 6/6] ASoC: fsl_easrc: enable memory to memory function

Intergrate memory to memory feature to EASRC driver.
call m2m probe(), remove(), suspend() and resume()
in different callback.

Signed-off-by: Shengjiu Wang <shengjiu.wang@....com>
---
 sound/soc/fsl/fsl_easrc.c | 41 +++++++++++++++++++++++++++++++++++++--
 1 file changed, 39 insertions(+), 2 deletions(-)

diff --git a/sound/soc/fsl/fsl_easrc.c b/sound/soc/fsl/fsl_easrc.c
index b735b24badc2..bc5404627032 100644
--- a/sound/soc/fsl/fsl_easrc.c
+++ b/sound/soc/fsl/fsl_easrc.c
@@ -29,6 +29,7 @@
 #include <sound/core.h>
 
 #include "fsl_easrc.h"
+#include "fsl_asrc_m2m.h"
 #include "imx-pcm.h"
 
 #define FSL_EASRC_FORMATS       (SNDRV_PCM_FMTBIT_S16_LE | \
@@ -2190,11 +2191,21 @@ static int fsl_easrc_probe(struct platform_device *pdev)
 		return ret;
 	}
 
+	/* probe the m2m feature */
+	ret = fsl_asrc_m2m_probe(easrc);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to init m2m device %d\n", ret);
+		return ret;
+	}
+
 	return 0;
 }
 
 static void fsl_easrc_remove(struct platform_device *pdev)
 {
+	/* remove the m2m feature */
+	fsl_asrc_m2m_remove(pdev);
+
 	pm_runtime_disable(&pdev->dev);
 }
 
@@ -2295,12 +2306,38 @@ static __maybe_unused int fsl_easrc_runtime_resume(struct device *dev)
 	return ret;
 }
 
+static int __maybe_unused fsl_easrc_suspend(struct device *dev)
+{
+	struct fsl_asrc *easrc = dev_get_drvdata(dev);
+	int ret;
+
+	/* suspend m2m function first */
+	fsl_asrc_m2m_suspend(easrc);
+
+	ret = pm_runtime_force_suspend(dev);
+
+	return ret;
+}
+
+static int __maybe_unused fsl_easrc_resume(struct device *dev)
+{
+	struct fsl_asrc *easrc = dev_get_drvdata(dev);
+	int ret;
+
+	ret = pm_runtime_force_resume(dev);
+
+	/* resume m2m function */
+	fsl_asrc_m2m_resume(easrc);
+
+	return ret;
+}
+
 static const struct dev_pm_ops fsl_easrc_pm_ops = {
 	SET_RUNTIME_PM_OPS(fsl_easrc_runtime_suspend,
 			   fsl_easrc_runtime_resume,
 			   NULL)
-	SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
-				pm_runtime_force_resume)
+	SET_SYSTEM_SLEEP_PM_OPS(fsl_easrc_suspend,
+				fsl_easrc_resume)
 };
 
 static struct platform_driver fsl_easrc_driver = {
-- 
2.34.1