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client-ip=165.204.84.17; helo=SATLEXMB04.amd.com; Received: from SATLEXMB04.amd.com (165.204.84.17) by BN8NAM11FT030.mail.protection.outlook.com (10.13.177.146) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.4308.20 via Frontend Transport; Wed, 7 Jul 2021 05:39:43 +0000 Received: from SATLEXMB08.amd.com (10.181.40.132) by SATLEXMB04.amd.com (10.181.40.145) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2242.4; Wed, 7 Jul 2021 00:39:43 -0500 Received: from SATLEXMB04.amd.com (10.181.40.145) by SATLEXMB08.amd.com (10.181.40.132) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2242.4; Tue, 6 Jul 2021 22:39:42 -0700 Received: from LinuxHost.amd.com (10.180.168.240) by SATLEXMB04.amd.com (10.181.40.145) with Microsoft SMTP Server id 15.1.2242.4 via Frontend Transport; Wed, 7 Jul 2021 00:39:31 -0500 From: Vijendar Mukunda To: , Subject: [PATCH 02/12] ASoC: amd: add Vangogh ACP PCI driver Date: Wed, 7 Jul 2021 11:26:13 +0530 Message-ID: <20210707055623.27371-3-vijendar.mukunda@amd.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210707055623.27371-1-vijendar.mukunda@amd.com> References: <20210707055623.27371-1-vijendar.mukunda@amd.com> MIME-Version: 1.0 X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: d450bc19-5aff-427e-f37c-08d941099f70 X-MS-TrafficTypeDiagnostic: MW2PR12MB2508: X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:565; 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SFS:(4636009)(136003)(39860400002)(346002)(396003)(376002)(46966006)(36840700001)(47076005)(110136005)(316002)(44832011)(5660300002)(36756003)(356005)(82310400003)(82740400003)(36860700001)(83380400001)(81166007)(86362001)(2616005)(1076003)(6666004)(54906003)(478600001)(70586007)(4326008)(426003)(26005)(186003)(2906002)(70206006)(336012)(8936002)(8676002)(7696005)(36900700001); DIR:OUT; SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 07 Jul 2021 05:39:43.4586 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: d450bc19-5aff-427e-f37c-08d941099f70 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: BN8NAM11FT030.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MW2PR12MB2508 Cc: Sunil-kumar.Dommati@amd.com, Liam Girdwood , open list , Takashi Iwai , Vijendar Mukunda , Alexander.Deucher@amd.com 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" From: Vijendar Mukunda ACP is a PCI audio device. This patch adds PCI driver to bind to this device and get PCI resources. Signed-off-by: Vijendar Mukunda --- sound/soc/amd/vangogh/acp5x.h | 21 ++++++++ sound/soc/amd/vangogh/pci-acp5x.c | 87 +++++++++++++++++++++++++++++++ 2 files changed, 108 insertions(+) create mode 100644 sound/soc/amd/vangogh/acp5x.h create mode 100644 sound/soc/amd/vangogh/pci-acp5x.c diff --git a/sound/soc/amd/vangogh/acp5x.h b/sound/soc/amd/vangogh/acp5x.h new file mode 100644 index 000000000000..a5e7f7cb65a1 --- /dev/null +++ b/sound/soc/amd/vangogh/acp5x.h @@ -0,0 +1,21 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * AMD ALSA SoC PCM Driver + * + * Copyright (C) 2021 Advanced Micro Devices, Inc. All rights reserved. + */ + +#include "vg_chip_offset_byte.h" + +#define ACP5x_PHY_BASE_ADDRESS 0x1240000 +#define ACP_DEVICE_ID 0x15E2 + +static inline u32 acp_readl(void __iomem *base_addr) +{ + return readl(base_addr - ACP5x_PHY_BASE_ADDRESS); +} + +static inline void acp_writel(u32 val, void __iomem *base_addr) +{ + writel(val, base_addr - ACP5x_PHY_BASE_ADDRESS); +} diff --git a/sound/soc/amd/vangogh/pci-acp5x.c b/sound/soc/amd/vangogh/pci-acp5x.c new file mode 100644 index 000000000000..e56d060a5cb9 --- /dev/null +++ b/sound/soc/amd/vangogh/pci-acp5x.c @@ -0,0 +1,87 @@ +// SPDX-License-Identifier: GPL-2.0+ +// +// AMD Vangogh ACP PCI Driver +// +// Copyright (C) 2021 Advanced Micro Devices, Inc. All rights reserved. + +#include +#include +#include + +#include "acp5x.h" + +struct acp5x_dev_data { + void __iomem *acp5x_base; +}; + +static int snd_acp5x_probe(struct pci_dev *pci, + const struct pci_device_id *pci_id) +{ + struct acp5x_dev_data *adata; + int ret; + u32 addr; + + if (pci->revision != 0x50) + return -ENODEV; + + if (pci_enable_device(pci)) { + dev_err(&pci->dev, "pci_enable_device failed\n"); + return -ENODEV; + } + + ret = pci_request_regions(pci, "AMD ACP5x audio"); + if (ret < 0) { + dev_err(&pci->dev, "pci_request_regions failed\n"); + goto disable_pci; + } + + adata = devm_kzalloc(&pci->dev, sizeof(struct acp5x_dev_data), + GFP_KERNEL); + if (!adata) { + ret = -ENOMEM; + goto release_regions; + } + addr = pci_resource_start(pci, 0); + adata->acp5x_base = devm_ioremap(&pci->dev, addr, + pci_resource_len(pci, 0)); + if (!adata->acp5x_base) { + ret = -ENOMEM; + goto release_regions; + } + pci_set_master(pci); + pci_set_drvdata(pci, adata); + +release_regions: + pci_release_regions(pci); +disable_pci: + pci_disable_device(pci); + + return ret; +} + +static void snd_acp5x_remove(struct pci_dev *pci) +{ + pci_release_regions(pci); + pci_disable_device(pci); +} + +static const struct pci_device_id snd_acp5x_ids[] = { + { PCI_DEVICE(PCI_VENDOR_ID_AMD, ACP_DEVICE_ID), + .class = PCI_CLASS_MULTIMEDIA_OTHER << 8, + .class_mask = 0xffffff }, + { 0, }, +}; +MODULE_DEVICE_TABLE(pci, snd_acp5x_ids); + +static struct pci_driver acp5x_driver = { + .name = KBUILD_MODNAME, + .id_table = snd_acp5x_ids, + .probe = snd_acp5x_probe, + .remove = snd_acp5x_remove, +}; + +module_pci_driver(acp5x_driver); + +MODULE_AUTHOR("Vijendar.Mukunda@amd.com"); +MODULE_DESCRIPTION("AMD Vangogh ACP PCI driver"); +MODULE_LICENSE("GPL v2");