1 // SPDX-License-Identifier: GPL-2.0-or-later <<
2 /* 1 /*
3 * Copyright (C) 2011 Freescale Semiconductor, 2 * Copyright (C) 2011 Freescale Semiconductor, Inc. All Rights Reserved.
4 * 3 *
5 * Based on sound/soc/imx/imx-pcm-dma-mx2.c 4 * Based on sound/soc/imx/imx-pcm-dma-mx2.c
>> 5 *
>> 6 * This program is free software; you can redistribute it and/or modify
>> 7 * it under the terms of the GNU General Public License as published by
>> 8 * the Free Software Foundation; either version 2 of the License, or
>> 9 * (at your option) any later version.
>> 10 *
>> 11 * This program is distributed in the hope that it will be useful,
>> 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
>> 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
>> 14 * GNU General Public License for more details.
>> 15 *
>> 16 * You should have received a copy of the GNU General Public License along
>> 17 * with this program; if not, write to the Free Software Foundation, Inc.,
>> 18 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
6 */ 19 */
7 20
8 #include <linux/device.h> 21 #include <linux/device.h>
9 #include <linux/init.h> 22 #include <linux/init.h>
10 #include <linux/module.h> 23 #include <linux/module.h>
11 24
12 #include <sound/core.h> 25 #include <sound/core.h>
13 #include <sound/pcm.h> 26 #include <sound/pcm.h>
14 #include <sound/soc.h> 27 #include <sound/soc.h>
15 #include <sound/dmaengine_pcm.h> 28 #include <sound/dmaengine_pcm.h>
16 29
17 #include "mxs-pcm.h" 30 #include "mxs-pcm.h"
18 31
19 static const struct snd_pcm_hardware snd_mxs_h 32 static const struct snd_pcm_hardware snd_mxs_hardware = {
20 .info = SNDRV_PCM_IN 33 .info = SNDRV_PCM_INFO_MMAP |
21 SNDRV_PCM_IN 34 SNDRV_PCM_INFO_MMAP_VALID |
22 SNDRV_PCM_IN 35 SNDRV_PCM_INFO_PAUSE |
23 SNDRV_PCM_IN 36 SNDRV_PCM_INFO_RESUME |
24 SNDRV_PCM_IN 37 SNDRV_PCM_INFO_INTERLEAVED |
25 SNDRV_PCM_IN 38 SNDRV_PCM_INFO_HALF_DUPLEX,
26 .period_bytes_min = 32, 39 .period_bytes_min = 32,
27 .period_bytes_max = 8192, 40 .period_bytes_max = 8192,
28 .periods_min = 1, 41 .periods_min = 1,
29 .periods_max = 52, 42 .periods_max = 52,
30 .buffer_bytes_max = 64 * 1024, 43 .buffer_bytes_max = 64 * 1024,
31 .fifo_size = 32, 44 .fifo_size = 32,
32 }; 45 };
33 46
34 static const struct snd_dmaengine_pcm_config m 47 static const struct snd_dmaengine_pcm_config mxs_dmaengine_pcm_config = {
35 .pcm_hardware = &snd_mxs_hardware, 48 .pcm_hardware = &snd_mxs_hardware,
36 .prealloc_buffer_size = 64 * 1024, 49 .prealloc_buffer_size = 64 * 1024,
37 }; 50 };
38 51
39 int mxs_pcm_platform_register(struct device *d 52 int mxs_pcm_platform_register(struct device *dev)
40 { 53 {
41 return devm_snd_dmaengine_pcm_register 54 return devm_snd_dmaengine_pcm_register(dev, &mxs_dmaengine_pcm_config,
42 SND_DMAENGINE_PCM_FLAG_HALF_DU 55 SND_DMAENGINE_PCM_FLAG_HALF_DUPLEX);
43 } 56 }
44 EXPORT_SYMBOL_GPL(mxs_pcm_platform_register); 57 EXPORT_SYMBOL_GPL(mxs_pcm_platform_register);
45 58
46 MODULE_DESCRIPTION("MXS ASoC PCM driver"); <<
47 MODULE_LICENSE("GPL"); 59 MODULE_LICENSE("GPL");
48 60
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