1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * linux/sound/arm/pxa2xx-pcm.c -- ALSA PCM interface for the Intel PXA2xx chip
4 *
5 * Author: Nicolas Pitre
6 * Created: Nov 30, 2004
7 * Copyright: (C) 2004 MontaVista Software, Inc.
8 */
9
10 #include <linux/dma-mapping.h>
11 #include <linux/module.h>
12 #include <linux/dmaengine.h>
13 #include <linux/of.h>
14
15 #include <sound/core.h>
16 #include <sound/soc.h>
17 #include <sound/pxa2xx-lib.h>
18 #include <sound/dmaengine_pcm.h>
19
20 static const struct snd_soc_component_driver pxa2xx_soc_platform = {
21 .pcm_construct = pxa2xx_soc_pcm_new,
22 .open = pxa2xx_soc_pcm_open,
23 .close = pxa2xx_soc_pcm_close,
24 .hw_params = pxa2xx_soc_pcm_hw_params,
25 .prepare = pxa2xx_soc_pcm_prepare,
26 .trigger = pxa2xx_soc_pcm_trigger,
27 .pointer = pxa2xx_soc_pcm_pointer,
28 };
29
pxa2xx_soc_platform_probe(struct platform_device * pdev)30 static int pxa2xx_soc_platform_probe(struct platform_device *pdev)
31 {
32 return devm_snd_soc_register_component(&pdev->dev, &pxa2xx_soc_platform,
33 NULL, 0);
34 }
35
36 static struct platform_driver pxa_pcm_driver = {
37 .driver = {
38 .name = "pxa-pcm-audio",
39 },
40
41 .probe = pxa2xx_soc_platform_probe,
42 };
43
44 module_platform_driver(pxa_pcm_driver);
45
46 MODULE_AUTHOR("Nicolas Pitre");
47 MODULE_DESCRIPTION("Intel PXA2xx PCM DMA module");
48 MODULE_LICENSE("GPL");
49 MODULE_ALIAS("platform:pxa-pcm-audio");
50