sound/soc/pxa/pxa2xx-pcm.c

   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         .pcm_destruct   = pxa2xx_soc_pcm_free,
  23         .open           = pxa2xx_soc_pcm_open,
  24         .close          = pxa2xx_soc_pcm_close,
  25         .hw_params      = pxa2xx_soc_pcm_hw_params,
  26         .hw_free        = pxa2xx_soc_pcm_hw_free,
  27         .prepare        = pxa2xx_soc_pcm_prepare,
  28         .trigger        = pxa2xx_soc_pcm_trigger,
  29         .pointer        = pxa2xx_soc_pcm_pointer,
  30         .mmap           = pxa2xx_soc_pcm_mmap,
  31 };
  32
  33 static int pxa2xx_soc_platform_probe(struct platform_device *pdev)
  34 {
  35         return devm_snd_soc_register_component(&pdev->dev, &pxa2xx_soc_platform,
  36                                                NULL, 0);
  37 }
  38
  39 static struct platform_driver pxa_pcm_driver = {
  40         .driver = {
  41                 .name = "pxa-pcm-audio",
  42         },
  43
  44         .probe = pxa2xx_soc_platform_probe,
  45 };
  46
  47 module_platform_driver(pxa_pcm_driver);
  48
  49 MODULE_AUTHOR("Nicolas Pitre");
  50 MODULE_DESCRIPTION("Intel PXA2xx PCM DMA module");
  51 MODULE_LICENSE("GPL");
  52 MODULE_ALIAS("platform:pxa-pcm-audio");