linux-kernel - [PATCH 8/8] ASoc: qcom: lpass: Add suspend and resume for sc7280 platform

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Date:   Fri,  1 Oct 2021 16:51:32 +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,
        swboyd@...omium.org, judyhsiao@...omium.org
Cc:     Srinivasa Rao Mandadapu <srivasam@...eaurora.org>,
        Venkata Prasad Potturu <potturu@...eaurora.org>
Subject: [PATCH 8/8] ASoc: qcom: lpass: Add suspend and resume for sc7280 platform

Adds device suspend and resume callbacks for sc7280 platform driver ops.

Signed-off-by: Venkata Prasad Potturu <potturu@...eaurora.org>
Signed-off-by: Srinivasa Rao Mandadapu <srivasam@...eaurora.org>
---
 sound/soc/qcom/lpass-cpu.c    | 22 ++++++++++++++++++++++
 sound/soc/qcom/lpass-sc7280.c |  2 ++
 sound/soc/qcom/lpass.h        |  2 ++
 3 files changed, 26 insertions(+)

diff --git a/sound/soc/qcom/lpass-cpu.c b/sound/soc/qcom/lpass-cpu.c
index c8dec52..5aa5630 100644
--- a/sound/soc/qcom/lpass-cpu.c
+++ b/sound/soc/qcom/lpass-cpu.c
@@ -1307,6 +1307,28 @@ int asoc_qcom_lpass_cpu_platform_probe(struct platform_device *pdev)
 }
 EXPORT_SYMBOL_GPL(asoc_qcom_lpass_cpu_platform_probe);
 
+int asoc_qcom_lpass_cpu_platform_resume(struct platform_device *pdev)
+{
+	struct lpass_data *drvdata = platform_get_drvdata(pdev);
+
+	if (drvdata->variant->init)
+		drvdata->variant->init(pdev);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(asoc_qcom_lpass_cpu_platform_resume);
+
+int asoc_qcom_lpass_cpu_platform_suspend(struct platform_device *pdev, pm_message_t state)
+{
+	struct lpass_data *drvdata = platform_get_drvdata(pdev);
+
+	if (drvdata->variant->exit)
+		drvdata->variant->exit(pdev);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(asoc_qcom_lpass_cpu_platform_suspend);
+
 int asoc_qcom_lpass_cpu_platform_remove(struct platform_device *pdev)
 {
 	struct lpass_data *drvdata = platform_get_drvdata(pdev);
diff --git a/sound/soc/qcom/lpass-sc7280.c b/sound/soc/qcom/lpass-sc7280.c
index 983a61b..6fdf111 100644
--- a/sound/soc/qcom/lpass-sc7280.c
+++ b/sound/soc/qcom/lpass-sc7280.c
@@ -591,6 +591,8 @@ static struct platform_driver sc7280_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,
+	.resume = asoc_qcom_lpass_cpu_platform_resume,
+	.suspend = asoc_qcom_lpass_cpu_platform_suspend,
 };
 
 module_platform_driver(sc7280_lpass_cpu_platform_driver);
diff --git a/sound/soc/qcom/lpass.h b/sound/soc/qcom/lpass.h
index e0ea698..53d9b5d 100644
--- a/sound/soc/qcom/lpass.h
+++ b/sound/soc/qcom/lpass.h
@@ -419,5 +419,7 @@ extern const struct snd_soc_dai_ops asoc_qcom_lpass_cpu_dai_ops;
 int lpass_cpu_pcm_new(struct snd_soc_pcm_runtime *rtd,
 				struct snd_soc_dai *dai);
 extern const struct snd_soc_dai_ops asoc_qcom_lpass_wcd_dai_ops;
+int asoc_qcom_lpass_cpu_platform_suspend(struct platform_device *pdev, pm_message_t state);
+int asoc_qcom_lpass_cpu_platform_resume(struct platform_device *pdev);
 
 #endif /* __LPASS_H__ */
-- 
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is a member of Code Aurora Forum, a Linux Foundation Collaborative Project.