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CTRY:US; LANG:en; SCL:1; SRV:; IPV:CAL; SFV:NSPM; H:SATLEXMB04.amd.com; PTR:InfoDomainNonexistent; CAT:NONE; SFS:(13230016)(4636009)(39860400002)(136003)(396003)(346002)(376002)(46966006)(40470700004)(36840700001)(82740400003)(4326008)(70586007)(70206006)(8676002)(8936002)(478600001)(5660300002)(356005)(81166007)(316002)(2616005)(54906003)(110136005)(336012)(186003)(36860700001)(1076003)(47076005)(40460700003)(6666004)(426003)(41300700001)(7696005)(26005)(40480700001)(36756003)(86362001)(82310400005)(2906002)(36900700001); DIR:OUT; SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 12 Aug 2022 12:10:42.7299 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: b6db49eb-3f12-4ebd-dd63-08da7c5badef 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: DM6NAM11FT039.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM5PR1201MB0060 Cc: Sunil-kumar.Dommati@amd.com, open list , Basavaraj.Hiregoudar@amd.com, Takashi Iwai , Liam Girdwood , mario.limonciello@amd.com, Vijendar.Mukunda@amd.com, Syed Saba kareem 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 ACP6.2 PCI device. PDM driver registers ALSA DMA and CPU DAI components with ASoC framework. Signed-off-by: Syed Saba Kareem --- sound/soc/amd/ps/acp62.h | 5 +++ sound/soc/amd/ps/ps-pdm-dma.c | 82 +++++++++++++++++++++++++++++++++++ 2 files changed, 87 insertions(+) create mode 100644 sound/soc/amd/ps/ps-pdm-dma.c diff --git a/sound/soc/amd/ps/acp62.h b/sound/soc/amd/ps/acp62.h index ab56e1f8c31b..7636bfeb8a8a 100644 --- a/sound/soc/amd/ps/acp62.h +++ b/sound/soc/amd/ps/acp62.h @@ -45,6 +45,11 @@ enum acp_config { ACP_CONFIG_15, }; +struct pdm_dev_data { + void __iomem *acp62_base; + struct snd_pcm_substream *capture_stream; +}; + static inline u32 acp62_readl(void __iomem *base_addr) { return readl(base_addr - ACP62_PHY_BASE_ADDRESS); diff --git a/sound/soc/amd/ps/ps-pdm-dma.c b/sound/soc/amd/ps/ps-pdm-dma.c new file mode 100644 index 000000000000..bca2ac3e81f5 --- /dev/null +++ b/sound/soc/amd/ps/ps-pdm-dma.c @@ -0,0 +1,82 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * AMD ALSA SoC Pink Sardine PDM Driver + * + * Copyright 2022 Advanced Micro Devices, Inc. + */ + +#include +#include +#include +#include +#include +#include +#include + +#include "acp62.h" + +#define DRV_NAME "acp_ps_pdm_dma" + +static struct snd_soc_dai_driver acp62_pdm_dai_driver = { + .name = "acp_ps_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 acp62_pdm_component = { + .name = DRV_NAME, +}; + +static int acp62_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->acp62_base = devm_ioremap(&pdev->dev, res->start, resource_size(res)); + if (!adata->acp62_base) + return -ENOMEM; + + adata->capture_stream = NULL; + + dev_set_drvdata(&pdev->dev, adata); + status = devm_snd_soc_register_component(&pdev->dev, + &acp62_pdm_component, + &acp62_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 acp62_pdm_dma_driver = { + .probe = acp62_pdm_audio_probe, + .driver = { + .name = "acp_ps_pdm_dma", + }, +}; + +module_platform_driver(acp62_pdm_dma_driver); + +MODULE_AUTHOR("Syed.SabaKareem@amd.com"); +MODULE_DESCRIPTION("AMD PHEONIX PDM Driver"); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:" DRV_NAME); -- 2.25.1