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Mon, 22 May 2023 08:26:40 -0500 From: Vijendar Mukunda To: CC: , , , , , , , Vijendar Mukunda , Liam Girdwood , Jaroslav Kysela , Takashi Iwai , Syed Saba Kareem , open list Subject: [PATCH V2 3/9] ASoC: amd: ps: add SoundWire dma driver Date: Mon, 22 May 2023 19:01:16 +0530 Message-ID: <20230522133122.166841-4-Vijendar.Mukunda@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230522133122.166841-1-Vijendar.Mukunda@amd.com> References: <20230522133122.166841-1-Vijendar.Mukunda@amd.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CO1NAM11FT003:EE_|CO6PR12MB5442:EE_ X-MS-Office365-Filtering-Correlation-Id: 0c958248-513e-4870-7143-08db5ac8305c X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 1llBD0xI4Q/I7qIF2RdhyPQgmR0EvRe61GzFx/eWNopoPZVzNqnb9ZKEfAAjo3kxGEETpwy3Bzg5vK8dcQrXJVzjB6jQ8yAWQOzAT3nFH+1zEbJ3R8WNswCXHPSNNjkGkcVXJFtQP5PGKLrR0w0VQ0wD0boMh40+xtewktlGwBIs5KZ5kPJZQYNMRPQrFPfXpGeDwUtVzhC4pEBjZKKCAzyiA1QvQN1DsyID/h6qvilSVO1nYn+09PJ3xbobA1lxKO6J7zhOKnt2AE51RNEKzk1KQIqDSdNjk35eCRijHSJknrUEHekthbPivhdBMp5fCZSpe1g+0IAFJMBMXyfBR6lsRBrjrfQ66fnHkdJg6hgQpTd0IwbFg6EwXsbtbvZ7ezy2F5WJl8QLqp7r3w+S5PLtLTtKEEigrYw2bmHcUC2Fw8NN4TwUvHar7t+qtCFraMANGllv91E0fg8svSqBFYB4D/WrNxgvGd8GWNEG3sThEAHRvtMYJk2Bp4u5kbjn+1XTluNM8Oe5KAjG/bEeZ3zDqHcmQrQwe0sA75SmxMEtAegN1i4WHyuP5df58SJyEQv7YYdxZ5A+iM6DFFcIqzgd4pBsUC3DLf0Ox4c0iA3I41kIwxdIivhsS3GOFJ6LvdH4nXFFB3q29Qe7op+BM98s7UTOEunsiFVjbhviJUiJRYJYpmbHteQrnZBQDmg6PLRCaSUW+HlJycatqBJkdnMikySwb8e0PXp1wH019+RfoG/vApU9zY7dj/YAme8SfdXEqDqD8YAmTonrVrayRA== X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB03.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230028)(4636009)(346002)(39860400002)(136003)(376002)(396003)(451199021)(40470700004)(46966006)(36840700001)(478600001)(54906003)(26005)(5660300002)(41300700001)(6666004)(7696005)(186003)(316002)(4326008)(6916009)(1076003)(336012)(8936002)(8676002)(426003)(2906002)(47076005)(2616005)(36860700001)(83380400001)(70206006)(70586007)(82740400003)(356005)(81166007)(36756003)(40460700003)(86362001)(82310400005)(40480700001)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 22 May 2023 13:26:45.2818 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 0c958248-513e-4870-7143-08db5ac8305c 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=[SATLEXMB03.amd.com] X-MS-Exchange-CrossTenant-AuthSource: CO1NAM11FT003.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CO6PR12MB5442 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org SoundWire DMA platform driver binds to the platform device created by ACP PCI device. SoundWire DMA driver registers ALSA DMA component with ASoC framework. Signed-off-by: Vijendar Mukunda --- sound/soc/amd/ps/acp63.h | 5 +++ sound/soc/amd/ps/ps-sdw-dma.c | 70 +++++++++++++++++++++++++++++++++++ 2 files changed, 75 insertions(+) create mode 100644 sound/soc/amd/ps/ps-sdw-dma.c diff --git a/sound/soc/amd/ps/acp63.h b/sound/soc/amd/ps/acp63.h index d296059be4f0..eec58da7ec8b 100644 --- a/sound/soc/amd/ps/acp63.h +++ b/sound/soc/amd/ps/acp63.h @@ -148,6 +148,11 @@ struct pdm_dev_data { struct snd_pcm_substream *capture_stream; }; +struct sdw_dma_dev_data { + void __iomem *acp_base; + struct mutex *acp_lock; /* used to protect acp common register access */ +}; + /** * struct acp63_dev_data - acp pci driver context * @acp63_base: acp mmio base diff --git a/sound/soc/amd/ps/ps-sdw-dma.c b/sound/soc/amd/ps/ps-sdw-dma.c new file mode 100644 index 000000000000..f41849fd035c --- /dev/null +++ b/sound/soc/amd/ps/ps-sdw-dma.c @@ -0,0 +1,70 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * AMD ALSA SoC Pink Sardine SoundWire DMA Driver + * + * Copyright 2023 Advanced Micro Devices, Inc. + */ + +#include +#include +#include +#include +#include +#include +#include +#include "acp63.h" + +#define DRV_NAME "amd_ps_sdw_dma" + +static const struct snd_soc_component_driver acp63_sdw_component = { + .name = DRV_NAME, +}; + +static int acp63_sdw_platform_probe(struct platform_device *pdev) +{ + struct resource *res; + struct sdw_dma_dev_data *sdw_data; + int status; + + if (!pdev->dev.platform_data) { + dev_err(&pdev->dev, "platform_data not retrieved\n"); + return -ENODEV; + } + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) { + dev_err(&pdev->dev, "IORESOURCE_MEM FAILED\n"); + return -ENODEV; + } + + sdw_data = devm_kzalloc(&pdev->dev, sizeof(*sdw_data), GFP_KERNEL); + if (!sdw_data) + return -ENOMEM; + + sdw_data->acp_base = devm_ioremap(&pdev->dev, res->start, resource_size(res)); + if (!sdw_data->acp_base) + return -ENOMEM; + + sdw_data->acp_lock = pdev->dev.platform_data; + dev_set_drvdata(&pdev->dev, sdw_data); + status = devm_snd_soc_register_component(&pdev->dev, + &acp63_sdw_component, + NULL, 0); + if (status) + dev_err(&pdev->dev, "Fail to register sdw dma component\n"); + + return status; +} + +static struct platform_driver acp63_sdw_dma_driver = { + .probe = acp63_sdw_platform_probe, + .driver = { + .name = "amd_ps_sdw_dma", + }, +}; + +module_platform_driver(acp63_sdw_dma_driver); + +MODULE_AUTHOR("Vijendar.Mukunda@amd.com"); +MODULE_DESCRIPTION("AMD ACP6.3 PS SDW DMA Driver"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:" DRV_NAME); -- 2.34.1