ASoC: qcom: sc7180: Register shutdown handler for lpass platform

Register shutdown handler to stop sc7180 lpass platform driver
and to disable audio clocks.
Signed-off-by: V Sujith Kumar Reddy <vsujithk@codeaurora.org>
Signed-off-by: Srinivasa Rao Mandadapu <srivasam@codeaurora.org>
Link: https://lore.kernel.org/r/1605292702-25046-1-git-send-email-srivasam@codeaurora.orgSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/qcom/lpass-cpu.c

@@ -908,5 +908,15 @@ 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");

sound/soc/qcom/lpass-sc7180.c

@@ -298,6 +298,7 @@ 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);

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;