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ASoC: SPEAr: get rid of spear-pcm-audio struct device

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Modify the SPEAr PCM driver so that it's a utility library that can be
registered on each DAI, rather than a separate struct device. This is
more in line with how many recent DT-converted platforms operate, and
avoids the need for yet another struct device.

This is also required as a pre-cursor to removing
spear_pcm_request_chan().

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Stephen Warren 2013-12-10 12:35:24 -07:00 committed by Mark Brown
parent d71b3ef44f
commit ede38884ac
4 changed files with 41 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
sound/soc/spear/spdif_in.c
View File

@ -24,6 +24,7 @@
#include <sound/spear_dma.h>
#include <sound/spear_spdif.h>
#include "spdif_in_regs.h"
#include "spear_pcm.h"
struct spdif_in_params {
u32 format;
@ -257,8 +258,12 @@ static int spdif_in_probe(struct platform_device *pdev)
return ret;
}
return devm_snd_soc_register_component(&pdev->dev, &spdif_in_component,
&spdif_in_dai, 1);
ret = devm_snd_soc_register_component(&pdev->dev, &spdif_in_component,
&spdif_in_dai, 1);
if (ret)
return ret;
return devm_spear_pcm_platform_register(&pdev->dev);
}
static struct platform_driver spdif_in_driver = {

10
sound/soc/spear/spdif_out.c
View File

@ -22,6 +22,7 @@
#include <sound/spear_dma.h>
#include <sound/spear_spdif.h>
#include "spdif_out_regs.h"
#include "spear_pcm.h"
struct spdif_out_params {
u32 rate;
@ -280,6 +281,7 @@ static int spdif_out_probe(struct platform_device *pdev)
struct spdif_out_dev *host;
struct spear_spdif_platform_data *pdata;
struct resource *res;
int ret;
host = devm_kzalloc(&pdev->dev, sizeof(*host), GFP_KERNEL);
if (!host) {
@ -306,8 +308,12 @@ static int spdif_out_probe(struct platform_device *pdev)
dev_set_drvdata(&pdev->dev, host);
return devm_snd_soc_register_component(&pdev->dev, &spdif_out_component,
&spdif_out_dai, 1);
ret = devm_snd_soc_register_component(&pdev->dev, &spdif_out_component,
&spdif_out_dai, 1);
if (ret)
return ret;
return devm_spear_pcm_platform_register(&pdev->dev);
}
#ifdef CONFIG_PM

18
sound/soc/spear/spear_pcm.c
View File

@ -18,6 +18,7 @@
#include <sound/pcm.h>
#include <sound/soc.h>
#include <sound/spear_dma.h>
#include "spear_pcm.h"
static const struct snd_pcm_hardware spear_pcm_hardware = {
.info = (SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BLOCK_TRANSFER |
@ -47,26 +48,15 @@ static const struct snd_dmaengine_pcm_config spear_dmaengine_pcm_config = {
.prealloc_buffer_size = 16 * 1024,
};
static int spear_soc_platform_probe(struct platform_device *pdev)
int devm_spear_pcm_platform_register(struct device *dev)
{
return devm_snd_dmaengine_pcm_register(&pdev->dev,
return devm_snd_dmaengine_pcm_register(dev,
&spear_dmaengine_pcm_config,
SND_DMAENGINE_PCM_FLAG_NO_DT |
SND_DMAENGINE_PCM_FLAG_COMPAT);
}
static struct platform_driver spear_pcm_driver = {
.driver = {
.name = "spear-pcm-audio",
.owner = THIS_MODULE,
},
.probe = spear_soc_platform_probe,
};
module_platform_driver(spear_pcm_driver);
EXPORT_SYMBOL_GPL(devm_spear_pcm_platform_register);
MODULE_AUTHOR("Rajeev Kumar <rajeev-dlh.kumar@st.com>");
MODULE_DESCRIPTION("SPEAr PCM DMA module");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:spear-pcm-audio");

22
sound/soc/spear/spear_pcm.h Normal file
View File

@ -0,0 +1,22 @@
/*
* Copyright (c) 2013, NVIDIA CORPORATION. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope 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, see <http://www.gnu.org/licenses/>.
*/
#ifndef __SPEAR_PCM_H__
#define __SPEAR_PCM_H__
int devm_spear_pcm_platform_register(struct device *dev);
#endif