diff options
Diffstat (limited to 'sound/soc/atmel/atmel-pcm-dma.c')
| -rw-r--r-- | sound/soc/atmel/atmel-pcm-dma.c | 35 |
1 files changed, 8 insertions, 27 deletions
diff --git a/sound/soc/atmel/atmel-pcm-dma.c b/sound/soc/atmel/atmel-pcm-dma.c index dd57a9eac171..7306e04da513 100644 --- a/sound/soc/atmel/atmel-pcm-dma.c +++ b/sound/soc/atmel/atmel-pcm-dma.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * atmel-pcm-dma.c -- ALSA PCM DMA support for the Atmel SoC. * @@ -8,20 +9,6 @@ * Based on atmel-pcm by: * Sedji Gaouaou <sedji.gaouaou@atmel.com> * Copyright 2008 Atmel - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include <linux/module.h> @@ -31,7 +18,6 @@ #include <linux/dma-mapping.h> #include <linux/dmaengine.h> #include <linux/atmel-ssc.h> -#include <linux/platform_data/dma-atmel.h> #include <sound/core.h> #include <sound/pcm.h> @@ -57,7 +43,7 @@ static const struct snd_pcm_hardware atmel_pcm_dma_hardware = { .buffer_bytes_max = 512 * 1024, }; -/** +/* * atmel_pcm_dma_irq: SSC interrupt handler for DMAENGINE enabled SSC * * We use DMAENGINE to send/receive data to/from SSC so this ISR is only to @@ -66,10 +52,10 @@ static const struct snd_pcm_hardware atmel_pcm_dma_hardware = { static void atmel_pcm_dma_irq(u32 ssc_sr, struct snd_pcm_substream *substream) { - struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); struct atmel_pcm_dma_params *prtd; - prtd = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream); + prtd = snd_soc_dai_get_dma_data(snd_soc_rtd_to_cpu(rtd, 0), substream); if (ssc_sr & prtd->mask->ssc_error) { if (snd_pcm_running(substream)) @@ -91,12 +77,12 @@ static void atmel_pcm_dma_irq(u32 ssc_sr, static int atmel_pcm_configure_dma(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct dma_slave_config *slave_config) { - struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); struct atmel_pcm_dma_params *prtd; struct ssc_device *ssc; int ret; - prtd = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream); + prtd = snd_soc_dai_get_dma_data(snd_soc_rtd_to_cpu(rtd, 0), substream); ssc = prtd->ssc; ret = snd_hwparams_to_dma_slave_config(substream, params, slave_config); @@ -124,16 +110,11 @@ static const struct snd_dmaengine_pcm_config atmel_dmaengine_pcm_config = { int atmel_pcm_dma_platform_register(struct device *dev) { - return snd_dmaengine_pcm_register(dev, &atmel_dmaengine_pcm_config, 0); + return devm_snd_dmaengine_pcm_register(dev, + &atmel_dmaengine_pcm_config, 0); } EXPORT_SYMBOL(atmel_pcm_dma_platform_register); -void atmel_pcm_dma_platform_unregister(struct device *dev) -{ - snd_dmaengine_pcm_unregister(dev); -} -EXPORT_SYMBOL(atmel_pcm_dma_platform_unregister); - MODULE_AUTHOR("Bo Shen <voice.shen@atmel.com>"); MODULE_DESCRIPTION("Atmel DMA based PCM module"); MODULE_LICENSE("GPL"); |