linux-kernel - [PATCH] Asoc: qcom: sc7180: Register shutdown handler for lpass platform

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Message-Id: <1605292702-25046-1-git-send-email-srivasam@codeaurora.org>
Date:   Sat, 14 Nov 2020 00:08:22 +0530
From:   Srinivasa Rao Mandadapu <srivasam@...eaurora.org>
To:     agross@...nel.org, bjorn.andersson@...aro.org, lgirdwood@...il.com,
        broonie@...nel.org, robh+dt@...nel.org, plai@...eaurora.org,
        bgoswami@...eaurora.org, perex@...ex.cz, tiwai@...e.com,
        srinivas.kandagatla@...aro.org, rohitkr@...eaurora.org,
        linux-arm-msm@...r.kernel.org, alsa-devel@...a-project.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     V Sujith Kumar Reddy <vsujithk@...eaurora.org>,
        Srinivasa Rao Mandadapu <srivasam@...eaurora.org>
Subject: [PATCH] Asoc: qcom: sc7180: Register shutdown handler for lpass platform

From: V Sujith Kumar Reddy <vsujithk@...eaurora.org>

Register shutdown handler to stop sc7180 lpass platform driver
and to disable audio clocks.

Signed-off-by: V Sujith Kumar Reddy <vsujithk@...eaurora.org>
Signed-off-by: Srinivasa Rao Mandadapu <srivasam@...eaurora.org>
---
 sound/soc/qcom/lpass-cpu.c    | 10 ++++++++++
 sound/soc/qcom/lpass-sc7180.c |  1 +
 sound/soc/qcom/lpass.h        |  1 +
 3 files changed, 12 insertions(+)

diff --git a/sound/soc/qcom/lpass-cpu.c b/sound/soc/qcom/lpass-cpu.c
index 1fd862e..d33eae6 100644
--- a/sound/soc/qcom/lpass-cpu.c
+++ b/sound/soc/qcom/lpass-cpu.c
@@ -914,5 +914,15 @@ int asoc_qcom_lpass_cpu_platform_remove(struct platform_device *pdev)
 }
 EXPORT_SYMBOL_GPL(asoc_qcom_lpass_cpu_platform_remove);
 
+void asoc_qcom_lpass_cpu_platform_shutdown(struct platform_device *pdev)
+{
+	struct lpass_data *drvdata = platform_get_drvdata(pdev);
+
+	if (drvdata->variant->exit)
+		drvdata->variant->exit(pdev);
+
+}
+EXPORT_SYMBOL_GPL(asoc_qcom_lpass_cpu_platform_shutdown);
+
 MODULE_DESCRIPTION("QTi LPASS CPU Driver");
 MODULE_LICENSE("GPL v2");
diff --git a/sound/soc/qcom/lpass-sc7180.c b/sound/soc/qcom/lpass-sc7180.c
index f619590..61b51b5 100644
--- a/sound/soc/qcom/lpass-sc7180.c
+++ b/sound/soc/qcom/lpass-sc7180.c
@@ -297,6 +297,7 @@ static struct platform_driver sc7180_lpass_cpu_platform_driver = {
 	},
 	.probe = asoc_qcom_lpass_cpu_platform_probe,
 	.remove = asoc_qcom_lpass_cpu_platform_remove,
+	.shutdown = asoc_qcom_lpass_cpu_platform_shutdown,
 };
 
 module_platform_driver(sc7180_lpass_cpu_platform_driver);
diff --git a/sound/soc/qcom/lpass.h b/sound/soc/qcom/lpass.h
index b4830f3..32a68c4 100644
--- a/sound/soc/qcom/lpass.h
+++ b/sound/soc/qcom/lpass.h
@@ -255,6 +255,7 @@ struct lpass_variant {
 /* register the platform driver from the CPU DAI driver */
 int asoc_qcom_lpass_platform_register(struct platform_device *);
 int asoc_qcom_lpass_cpu_platform_remove(struct platform_device *pdev);
+void asoc_qcom_lpass_cpu_platform_shutdown(struct platform_device *pdev);
 int asoc_qcom_lpass_cpu_platform_probe(struct platform_device *pdev);
 int asoc_qcom_lpass_cpu_dai_probe(struct snd_soc_dai *dai);
 extern const struct snd_soc_dai_ops asoc_qcom_lpass_cpu_dai_ops;
-- 
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is a member of Code Aurora Forum, a Linux Foundation Collaborative Project.