1 /* 2 * linux/sound/arm/pxa2xx-pcm.c -- ALSA PCM interface for the Intel PXA2xx chip 3 * 4 * Author: Nicolas Pitre 5 * Created: Nov 30, 2004 6 * Copyright: (C) 2004 MontaVista Software, Inc. 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License version 2 as 10 * published by the Free Software Foundation. 11 */ 12 13 #include <linux/dma-mapping.h> 14 #include <linux/module.h> 15 #include <linux/dmaengine.h> 16 #include <linux/of.h> 17 18 #include <sound/core.h> 19 #include <sound/soc.h> 20 #include <sound/pxa2xx-lib.h> 21 #include <sound/dmaengine_pcm.h> 22 23 static const struct snd_soc_component_driver pxa2xx_soc_platform = { 24 .ops = &pxa2xx_pcm_ops, 25 .pcm_new = pxa2xx_soc_pcm_new, 26 .pcm_free = pxa2xx_pcm_free_dma_buffers, 27 }; 28 29 static int pxa2xx_soc_platform_probe(struct platform_device *pdev) 30 { 31 return devm_snd_soc_register_component(&pdev->dev, &pxa2xx_soc_platform, 32 NULL, 0); 33 } 34 35 static struct platform_driver pxa_pcm_driver = { 36 .driver = { 37 .name = "pxa-pcm-audio", 38 }, 39 40 .probe = pxa2xx_soc_platform_probe, 41 }; 42 43 module_platform_driver(pxa_pcm_driver); 44 45 MODULE_AUTHOR("Nicolas Pitre"); 46 MODULE_DESCRIPTION("Intel PXA2xx PCM DMA module"); 47 MODULE_LICENSE("GPL"); 48 MODULE_ALIAS("platform:pxa-pcm-audio"); 49