linux-kernel - [PATCH v2 05/12] ASoC: qdsp6: q6asm: use of_platform

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Date:   Tue, 26 Jun 2018 10:20:09 +0100
From:   Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
To:     broonie@...nel.org, robh+dt@...nel.org, alsa-devel@...a-project.org
Cc:     devicetree@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        lgirdwood@...il.com, bgoswami@...eaurora.org, tiwai@...e.com,
        perex@...ex.cz, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, niklas.cassel@...aro.org,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Subject: [PATCH v2 05/12] ASoC: qdsp6: q6asm: use of_platform_populate/depopulate()

Now that the child nodes have there own compatible strings,
Use of_platform_populate/depopulate() instead of less common
of_platform_device_create()/destroy().

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
---
 sound/soc/qcom/qdsp6/q6asm.c | 16 ++--------------
 1 file changed, 2 insertions(+), 14 deletions(-)

diff --git a/sound/soc/qcom/qdsp6/q6asm.c b/sound/soc/qcom/qdsp6/q6asm.c
index 530852385cad..c4fd28f168d5 100644
--- a/sound/soc/qcom/qdsp6/q6asm.c
+++ b/sound/soc/qcom/qdsp6/q6asm.c
@@ -177,7 +177,6 @@ struct q6asm {
 	struct platform_device *pcmdev;
 	spinlock_t slock;
 	struct audio_client *session[MAX_SESSIONS + 1];
-	struct platform_device *pdev_dais;
 };
 
 struct audio_client {
@@ -1344,7 +1343,6 @@ EXPORT_SYMBOL_GPL(q6asm_cmd_nowait);
 static int q6asm_probe(struct apr_device *adev)
 {
 	struct device *dev = &adev->dev;
-	struct device_node *dais_np;
 	struct q6asm *q6asm;
 
 	q6asm = devm_kzalloc(dev, sizeof(*q6asm), GFP_KERNEL);
@@ -1359,22 +1357,12 @@ static int q6asm_probe(struct apr_device *adev)
 	spin_lock_init(&q6asm->slock);
 	dev_set_drvdata(dev, q6asm);
 
-	dais_np = of_get_child_by_name(dev->of_node, "dais");
-	if (dais_np) {
-		q6asm->pdev_dais = of_platform_device_create(dais_np,
-							   "q6asm-dai", dev);
-		of_node_put(dais_np);
-	}
-
-	return 0;
+	return of_platform_populate(dev->of_node, NULL, NULL, dev);
 }
 
 static int q6asm_remove(struct apr_device *adev)
 {
-	struct q6asm *q6asm = dev_get_drvdata(&adev->dev);
-
-	if (q6asm->pdev_dais)
-		of_platform_device_destroy(&q6asm->pdev_dais->dev, NULL);
+	of_platform_depopulate(&adev->dev);
 
 	return 0;
 }
-- 
2.16.2