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ASoC: amd: add vangogh i2s controller driver

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Add Vangogh I2S controller driver to support two I2S controller
instances.

Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Link: https://lore.kernel.org/r/20210721180430.11571-9-Vijendar.Mukunda@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Vijendar Mukunda 2021-07-21 23:34:24 +05:30 committed by Mark Brown
parent cab396d8b2
commit e550339ee6
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2 changed files with 92 additions and 0 deletions
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88
sound/soc/amd/vangogh/acp5x-i2s.c Normal file
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@ -0,0 +1,88 @@
// SPDX-License-Identifier: GPL-2.0+
//
// AMD ALSA SoC PCM Driver
//
// Copyright (C) 2021 Advanced Micro Devices, Inc. All rights reserved.
#include <linux/platform_device.h>
#include <linux/module.h>
#include <linux/err.h>
#include <linux/io.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/soc-dai.h>
#include <linux/dma-mapping.h>
#include "acp5x.h"
#define DRV_NAME "acp5x_i2s_playcap"
static const struct snd_soc_component_driver acp5x_dai_component = {
.name = "acp5x-i2s",
};
static struct snd_soc_dai_driver acp5x_i2s_dai = {
.playback = {
.rates = SNDRV_PCM_RATE_8000_96000,
.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 |
SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S32_LE,
.channels_min = 2,
.channels_max = 2,
.rate_min = 8000,
.rate_max = 96000,
},
.capture = {
.rates = SNDRV_PCM_RATE_8000_96000,
.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 |
SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S32_LE,
.channels_min = 2,
.channels_max = 2,
.rate_min = 8000,
.rate_max = 96000,
},
};
static int acp5x_dai_probe(struct platform_device *pdev)
{
struct resource *res;
struct i2s_dev_data *adata;
int ret;
adata = devm_kzalloc(&pdev->dev, sizeof(struct i2s_dev_data),
GFP_KERNEL);
if (!adata)
return -ENOMEM;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
dev_err(&pdev->dev, "IORESOURCE_MEM FAILED\n");
return -ENOMEM;
}
adata->acp5x_base = devm_ioremap(&pdev->dev, res->start,
resource_size(res));
if (IS_ERR(adata->acp5x_base))
return PTR_ERR(adata->acp5x_base);
adata->master_mode = I2S_MASTER_MODE_ENABLE;
dev_set_drvdata(&pdev->dev, adata);
ret = devm_snd_soc_register_component(&pdev->dev,
&acp5x_dai_component,
&acp5x_i2s_dai, 1);
if (ret)
dev_err(&pdev->dev, "Fail to register acp i2s dai\n");
return ret;
}
static struct platform_driver acp5x_dai_driver = {
.probe = acp5x_dai_probe,
.driver = {
.name = "acp5x_i2s_playcap",
},
};
module_platform_driver(acp5x_dai_driver);
MODULE_AUTHOR("Vijendar.Mukunda@amd.com");
MODULE_DESCRIPTION("AMD ACP5.x CPU DAI Driver");
MODULE_ALIAS("platform:" DRV_NAME);
MODULE_LICENSE("GPL v2");

4
sound/soc/amd/vangogh/acp5x.h
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@ -71,7 +71,11 @@
#define DMA_SIZE 0x40
#define FRM_LEN 0x100
#define I2S_MASTER_MODE_ENABLE 1
#define I2S_MASTER_MODE_DISABLE 0
struct i2s_dev_data {
bool master_mode;
unsigned int i2s_irq;
void __iomem *acp5x_base;
struct snd_pcm_substream *play_stream;