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Mon, 20 Jan 2025 04:02:06 -0600 From: Vijendar Mukunda To: CC: , , , , , , , , , , Vijendar Mukunda Subject: [PATCH V2 07/23] ASoC: amd: acp70: add acp pdm platform driver Date: Mon, 20 Jan 2025 15:31:14 +0530 Message-ID: <20250120100130.3710412-8-Vijendar.Mukunda@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250120100130.3710412-1-Vijendar.Mukunda@amd.com> References: <20250120100130.3710412-1-Vijendar.Mukunda@amd.com> MIME-Version: 1.0 X-Originating-IP: [10.180.168.240] X-ClientProxiedBy: SATLEXMB04.amd.com (10.181.40.145) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CH1PEPF0000AD81:EE_|CH3PR12MB7596:EE_ X-MS-Office365-Filtering-Correlation-Id: 68a305ed-40e9-4feb-3d2b-08dd3939814a X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; ARA:13230040|82310400026|36860700013|376014|1800799024; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17; 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no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-alsa-devel.alsa-project.org-0; header-match-alsa-devel.alsa-project.org-1; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.9 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: PDM platform driver binds to the platform device created by ACP7.0 PCI device. PDM driver registers ALSA DMA and CPU DAI components with ASoC framework. Signed-off-by: Vijendar Mukunda --- sound/soc/amd/acp70/Makefile | 2 + sound/soc/amd/acp70/acp70-pdm-dma.c | 87 +++++++++++++++++++++++++++++ sound/soc/amd/acp70/acp70.h | 7 +++ 3 files changed, 96 insertions(+) create mode 100644 sound/soc/amd/acp70/acp70-pdm-dma.c diff --git a/sound/soc/amd/acp70/Makefile b/sound/soc/amd/acp70/Makefile index 5e553de6c772..778bdf268731 100644 --- a/sound/soc/amd/acp70/Makefile +++ b/sound/soc/amd/acp70/Makefile @@ -1,5 +1,7 @@ # SPDX-License-Identifier: GPL-2.0-only # ACP 7.0 platform Support snd-pci-acp70-y := pci-acp70.o +snd-acp70-pdm-dma-y := acp70-pdm-dma.o obj-$(CONFIG_SND_SOC_AMD_ACP70) += snd-pci-acp70.o +obj-$(CONFIG_SND_SOC_AMD_ACP70) += snd-acp70-pdm-dma.o diff --git a/sound/soc/amd/acp70/acp70-pdm-dma.c b/sound/soc/amd/acp70/acp70-pdm-dma.c new file mode 100644 index 000000000000..fd31e31a02a6 --- /dev/null +++ b/sound/soc/amd/acp70/acp70-pdm-dma.c @@ -0,0 +1,87 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * AMD ALSA SoC ACP 7.0 PDM Driver + * + * Copyright 2024 Advanced Micro Devices, Inc. + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#include "acp70.h" + +#define DRV_NAME "acp70_pdm_dma" + +static struct snd_soc_dai_driver acp70_pdm_dai_driver = { + .name = "acp_acp70_pdm_dma.0", + .capture = { + .rates = SNDRV_PCM_RATE_48000, + .formats = SNDRV_PCM_FMTBIT_S32_LE, + .channels_min = 2, + .channels_max = 2, + .rate_min = 48000, + .rate_max = 48000, + }, +}; + +static const struct snd_soc_component_driver acp70_pdm_component = { + .name = DRV_NAME, +}; + +static int acp70_pdm_audio_probe(struct platform_device *pdev) +{ + struct resource *res; + struct pdm_dev_data *adata; + struct acp70_dev_data *acp_data; + struct device *parent; + int status; + + parent = pdev->dev.parent; + acp_data = dev_get_drvdata(parent); + 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->acp70_base = devm_ioremap(&pdev->dev, res->start, resource_size(res)); + if (!adata->acp70_base) + return -ENOMEM; + + adata->capture_stream = NULL; + adata->acp_lock = &acp_data->acp_lock; + dev_set_drvdata(&pdev->dev, adata); + status = devm_snd_soc_register_component(&pdev->dev, + &acp70_pdm_component, + &acp70_pdm_dai_driver, 1); + if (status) { + dev_err(&pdev->dev, "Fail to register acp pdm dai\n"); + + return -ENODEV; + } + return 0; +} + +static struct platform_driver acp70_pdm_dma_driver = { + .probe = acp70_pdm_audio_probe, + .driver = { + .name = "acp70_pdm_dma", + }, +}; + +module_platform_driver(acp70_pdm_dma_driver); + +MODULE_AUTHOR("Vijendar.Mukunda@amd.com"); +MODULE_DESCRIPTION("AMD ACP 7.0 PDM Driver"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:" DRV_NAME); diff --git a/sound/soc/amd/acp70/acp70.h b/sound/soc/amd/acp70/acp70.h index 68035fbf23d1..c7cabb98cc1a 100644 --- a/sound/soc/amd/acp70/acp70.h +++ b/sound/soc/amd/acp70/acp70.h @@ -58,6 +58,13 @@ enum acp_config { ACP_CONFIG_20, }; +struct pdm_dev_data { + u32 pdm_irq; + void __iomem *acp70_base; + struct mutex *acp_lock; /* mutex to protect acp common register access */ + struct snd_pcm_substream *capture_stream; +}; + /** * struct acp70_dev_data - acp pci driver context * @acp70_base: acp mmio base