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Mon, 18 Oct 2021 06:22:06 -0500 From: Vijendar Mukunda To: , Subject: [PATCH V2 05/13] ASoC: amd: add acp6x pdm platform driver Date: Mon, 18 Oct 2021 16:50:36 +0530 Message-ID: <20211018112044.1705805-6-Vijendar.Mukunda@amd.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20211018112044.1705805-1-Vijendar.Mukunda@amd.com> References: <20211018112044.1705805-1-Vijendar.Mukunda@amd.com> MIME-Version: 1.0 X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 37ef4cda-9a12-48e9-03ab-08d99229875b X-MS-TrafficTypeDiagnostic: BYAPR12MB3480: X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:38; X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17; CTRY:US; LANG:en; SCL:1; SRV:; IPV:CAL; SFV:NSPM; H:SATLEXMB04.amd.com; PTR:InfoDomainNonexistent; CAT:NONE; SFS:(4636009)(36840700001)(46966006)(5660300002)(186003)(47076005)(81166007)(2616005)(6666004)(8936002)(2906002)(7696005)(316002)(36756003)(356005)(1076003)(26005)(508600001)(110136005)(54906003)(36860700001)(86362001)(70206006)(426003)(336012)(4326008)(8676002)(70586007)(82310400003)(32563001)(36900700001); DIR:OUT; SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 18 Oct 2021 11:22:11.1039 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 37ef4cda-9a12-48e9-03ab-08d99229875b 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: DM6NAM11FT006.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR12MB3480 Cc: Sunil-kumar.Dommati@amd.com, mlimonci@amd.com, richgong@amd.com, Takashi Iwai , Liam Girdwood , Vijendar Mukunda , Alexander.Deucher@amd.com, Basavaraj.Hiregoudar@amd.com, open list X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" PDM platform driver binds to the platform device created by ACP6x PCI device. PDM driver registers ALSA DMA and CPU DAI components with ASoC framework. Signed-off-by: Vijendar Mukunda --- sound/soc/amd/yc/acp6x-pdm-dma.c | 81 ++++++++++++++++++++++++++++++++ sound/soc/amd/yc/acp6x.h | 5 ++ 2 files changed, 86 insertions(+) create mode 100644 sound/soc/amd/yc/acp6x-pdm-dma.c diff --git a/sound/soc/amd/yc/acp6x-pdm-dma.c b/sound/soc/amd/yc/acp6x-pdm-dma.c new file mode 100644 index 000000000000..75228ce74da1 --- /dev/null +++ b/sound/soc/amd/yc/acp6x-pdm-dma.c @@ -0,0 +1,81 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * AMD ALSA SoC Yellow Carp PDM Driver + * + * Copyright 2021 Advanced Micro Devices, Inc. + */ + +#include +#include +#include +#include +#include +#include +#include + +#include "acp6x.h" + +#define DRV_NAME "acp_yc_pdm_dma" + +static struct snd_soc_dai_driver acp6x_pdm_dai_driver = { + .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 acp6x_pdm_component = { + .name = DRV_NAME, +}; + +static int acp6x_pdm_audio_probe(struct platform_device *pdev) +{ + struct resource *res; + struct pdm_dev_data *adata; + int status; + + 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->acp6x_base = devm_ioremap(&pdev->dev, res->start, resource_size(res)); + if (!adata->acp6x_base) + return -ENOMEM; + + adata->capture_stream = NULL; + + dev_set_drvdata(&pdev->dev, adata); + status = devm_snd_soc_register_component(&pdev->dev, + &acp6x_pdm_component, + &acp6x_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 acp6x_pdm_dma_driver = { + .probe = acp6x_pdm_audio_probe, + .driver = { + .name = "acp_yc_pdm_dma", + }, +}; + +module_platform_driver(acp6x_pdm_dma_driver); + +MODULE_AUTHOR("Vijendar.Mukunda@amd.com"); +MODULE_DESCRIPTION("AMD ACP6x YC PDM Driver"); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:" DRV_NAME); diff --git a/sound/soc/amd/yc/acp6x.h b/sound/soc/amd/yc/acp6x.h index 63bdea3188ea..d6b2c70ce9c8 100644 --- a/sound/soc/amd/yc/acp6x.h +++ b/sound/soc/amd/yc/acp6x.h @@ -45,6 +45,11 @@ enum acp_config { ACP_CONFIG_15, }; +struct pdm_dev_data { + void __iomem *acp6x_base; + struct snd_pcm_substream *capture_stream; +}; + static inline u32 acp6x_readl(void __iomem *base_addr) { return readl(base_addr - ACP6x_PHY_BASE_ADDRESS);