Add Vangogh I2S controller driver to support two I2S controller instances.
Signed-off-by: Vijendar Mukunda Vijendar.Mukunda@amd.com --- sound/soc/amd/vangogh/acp5x-i2s.c | 97 +++++++++++++++++++++++++++++++ sound/soc/amd/vangogh/acp5x.h | 4 ++ 2 files changed, 101 insertions(+) create mode 100644 sound/soc/amd/vangogh/acp5x-i2s.c
diff --git a/sound/soc/amd/vangogh/acp5x-i2s.c b/sound/soc/amd/vangogh/acp5x-i2s.c new file mode 100644 index 000000000000..0945c6452189 --- /dev/null +++ b/sound/soc/amd/vangogh/acp5x-i2s.c @@ -0,0 +1,97 @@ +// 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 -ENODEV; + } + return 0; +} + +static int acp5x_dai_remove(struct platform_device *pdev) +{ + /* As we use devm_ memory alloc there is nothing TBD here */ + return 0; +} + +static struct platform_driver acp5x_dai_driver = { + .probe = acp5x_dai_probe, + .remove = acp5x_dai_remove, + .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"); diff --git a/sound/soc/amd/vangogh/acp5x.h b/sound/soc/amd/vangogh/acp5x.h index 99298a2f38ce..27cdd3b08701 100644 --- a/sound/soc/amd/vangogh/acp5x.h +++ b/sound/soc/amd/vangogh/acp5x.h @@ -70,7 +70,11 @@ #define DMA_SIZE 0x40 #define FRM_LEN 0x100
+#define I2S_MASTER_MODE_ENABLE 0x01 +#define I2S_MASTER_MODE_DISABLE 0x00 + struct i2s_dev_data { + bool master_mode; unsigned int i2s_irq; void __iomem *acp5x_base; struct snd_pcm_substream *play_stream;