1 files changed, 52 insertions, 0 deletions
diff --git a/sound/soc/pxa/pxa2xx-pcm.c b/sound/soc/pxa/pxa2xx-pcm.c
new file mode 100644
index 000000000..2b7839715
--- /dev/null
+++ b/sound/soc/pxa/pxa2xx-pcm.c
@@ -0,0 +1,52 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * linux/sound/arm/pxa2xx-pcm.c -- ALSA PCM interface for the Intel PXA2xx chip
+ *
+ * Author:	Nicolas Pitre
+ * Created:	Nov 30, 2004
+ * Copyright:	(C) 2004 MontaVista Software, Inc.
+ */
+
+#include <linux/dma-mapping.h>
+#include <linux/module.h>
+#include <linux/dmaengine.h>
+#include <linux/of.h>
+
+#include <sound/core.h>
+#include <sound/soc.h>
+#include <sound/pxa2xx-lib.h>
+#include <sound/dmaengine_pcm.h>
+
+static const struct snd_soc_component_driver pxa2xx_soc_platform = {
+	.pcm_construct	= pxa2xx_soc_pcm_new,
+	.pcm_destruct	= pxa2xx_soc_pcm_free,
+	.open		= pxa2xx_soc_pcm_open,
+	.close		= pxa2xx_soc_pcm_close,
+	.hw_params	= pxa2xx_soc_pcm_hw_params,
+	.hw_free	= pxa2xx_soc_pcm_hw_free,
+	.prepare	= pxa2xx_soc_pcm_prepare,
+	.trigger	= pxa2xx_soc_pcm_trigger,
+	.pointer	= pxa2xx_soc_pcm_pointer,
+	.mmap		= pxa2xx_soc_pcm_mmap,
+};
+
+static int pxa2xx_soc_platform_probe(struct platform_device *pdev)
+{
+	return devm_snd_soc_register_component(&pdev->dev, &pxa2xx_soc_platform,
+					       NULL, 0);
+}
+
+static struct platform_driver pxa_pcm_driver = {
+	.driver = {
+		.name = "pxa-pcm-audio",
+	},
+
+	.probe = pxa2xx_soc_platform_probe,
+};
+
+module_platform_driver(pxa_pcm_driver);
+
+MODULE_AUTHOR("Nicolas Pitre");
+MODULE_DESCRIPTION("Intel PXA2xx PCM DMA module");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:pxa-pcm-audio");