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X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 21 Jul 2021 17:48:18.6302 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 65af3378-21b5-43cb-1e2d-08d94c6fb97f X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: BN8NAM11FT042.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN6PR12MB4669 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org PCM platform driver binds to the platform device created by ACP5x PCI device. PCM driver registers ALSA DMA components with ASoC framework. Reviewed-by: Pierre-Louis Bossart Signed-off-by: Vijendar Mukunda --- sound/soc/amd/vangogh/acp5x-pcm-dma.c | 72 +++++++++++++++++++++++++++ sound/soc/amd/vangogh/acp5x.h | 4 ++ 2 files changed, 76 insertions(+) create mode 100644 sound/soc/amd/vangogh/acp5x-pcm-dma.c diff --git a/sound/soc/amd/vangogh/acp5x-pcm-dma.c b/sound/soc/amd/vangogh/acp5x-pcm-dma.c new file mode 100644 index 000000000000..60d752adfb81 --- /dev/null +++ b/sound/soc/amd/vangogh/acp5x-pcm-dma.c @@ -0,0 +1,72 @@ +// SPDX-License-Identifier: GPL-2.0+ +// +// AMD ALSA SoC PCM Driver +// +// Copyright (C) 2021 Advanced Micro Devices, Inc. All rights reserved. + +#include +#include +#include +#include +#include +#include +#include +#include + +#include "acp5x.h" + +#define DRV_NAME "acp5x_i2s_dma" + +static const struct snd_soc_component_driver acp5x_i2s_component = { + .name = DRV_NAME, +}; + +static int acp5x_audio_probe(struct platform_device *pdev) +{ + struct resource *res; + struct i2s_dev_data *adata; + int status; + + if (!pdev->dev.platform_data) { + dev_err(&pdev->dev, "platform_data not retrieved\n"); + return -ENODEV; + } + irqflags = *((unsigned int *)(pdev->dev.platform_data)); + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) { + dev_err(&pdev->dev, "IORESOURCE_MEM FAILED\n"); + return -ENODEV; + } + + adata = devm_kzalloc(&pdev->dev, sizeof(*adata), GFP_KERNEL); + if (!adata) + return -ENOMEM; + + adata->acp5x_base = devm_ioremap(&pdev->dev, res->start, + resource_size(res)); + if (!adata->acp5x_base) + return -ENOMEM; + dev_set_drvdata(&pdev->dev, adata); + status = devm_snd_soc_register_component(&pdev->dev, + &acp5x_i2s_component, + NULL, 0); + if (status) + dev_err(&pdev->dev, "Fail to register acp i2s component\n"); + + return status; +} + +static struct platform_driver acp5x_dma_driver = { + .probe = acp5x_audio_probe, + .driver = { + .name = "acp5x_i2s_dma", + }, +}; + +module_platform_driver(acp5x_dma_driver); + +MODULE_AUTHOR("Vijendar.Mukunda@amd.com"); +MODULE_DESCRIPTION("AMD ACP 5.x PCM Driver"); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:" DRV_NAME); diff --git a/sound/soc/amd/vangogh/acp5x.h b/sound/soc/amd/vangogh/acp5x.h index 32e5db10c1c8..e450fb32d680 100644 --- a/sound/soc/amd/vangogh/acp5x.h +++ b/sound/soc/amd/vangogh/acp5x.h @@ -33,6 +33,10 @@ #define ACP5x_I2S_MODE 1 #define ACP5x_RES 4 +struct i2s_dev_data { + void __iomem *acp5x_base; +}; + /* common header file uses exact offset rather than relative * offset which requires subtraction logic from base_addr * for accessing ACP5x MMIO space registers -- 2.17.1