From patchwork Thu May 28 02:10:49 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hui Wang X-Patchwork-Id: 1299331 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (no SPF record) smtp.mailfrom=lists.ubuntu.com (client-ip=91.189.94.19; helo=huckleberry.canonical.com; envelope-from=kernel-team-bounces@lists.ubuntu.com; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=canonical.com Received: from huckleberry.canonical.com (huckleberry.canonical.com [91.189.94.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 49XWRK05dRz9sSm; Thu, 28 May 2020 12:11:57 +1000 (AEST) Received: from localhost ([127.0.0.1] helo=huckleberry.canonical.com) by huckleberry.canonical.com with esmtp (Exim 4.86_2) (envelope-from ) id 1je81R-00040m-1s; Thu, 28 May 2020 02:11:53 +0000 Received: from youngberry.canonical.com ([91.189.89.112]) by huckleberry.canonical.com with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.86_2) (envelope-from ) id 1je81L-0003wj-6F for kernel-team@lists.ubuntu.com; Thu, 28 May 2020 02:11:47 +0000 Received: from [114.254.40.70] (helo=localhost.localdomain) by youngberry.canonical.com with esmtpsa (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.86_2) (envelope-from ) id 1je81K-0006ul-89 for kernel-team@lists.ubuntu.com; Thu, 28 May 2020 02:11:46 +0000 From: Hui Wang To: kernel-team@lists.ubuntu.com Subject: [SRU][F][PATCH 05/19] ASoC: amd: add ACP3x PDM platform driver Date: Thu, 28 May 2020 10:10:49 +0800 Message-Id: <20200528021121.28987-6-hui.wang@canonical.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200528021121.28987-1-hui.wang@canonical.com> References: <20200528021121.28987-1-hui.wang@canonical.com> X-BeenThere: kernel-team@lists.ubuntu.com X-Mailman-Version: 2.1.20 Precedence: list List-Id: Kernel team discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: kernel-team-bounces@lists.ubuntu.com Sender: "kernel-team" From: Vijendar Mukunda BugLink: https://bugs.launchpad.net/bugs/1881046 PDM platform driver binds to the platform device created by ACP3x PCI device. PDM driver registers ALSA DMA and CPU DAI components with ASoC framework. Signed-off-by: Vijendar Mukunda Reviewed-by: Pierre-Louis Bossart Link: https://lore.kernel.org/r/20200518171704.24999-6-Vijendar.Mukunda@amd.com Signed-off-by: Mark Brown (cherry picked from commit f621a3676d3f52fcb8b7d8db8acbcc28423bcdb7 git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git) Signed-off-by: Hui Wang --- sound/soc/amd/renoir/acp3x-pdm-dma.c | 95 ++++++++++++++++++++++++++++ sound/soc/amd/renoir/rn_acp3x.h | 5 ++ 2 files changed, 100 insertions(+) create mode 100644 sound/soc/amd/renoir/acp3x-pdm-dma.c diff --git a/sound/soc/amd/renoir/acp3x-pdm-dma.c b/sound/soc/amd/renoir/acp3x-pdm-dma.c new file mode 100644 index 000000000000..1dda8cf2edd2 --- /dev/null +++ b/sound/soc/amd/renoir/acp3x-pdm-dma.c @@ -0,0 +1,95 @@ +// SPDX-License-Identifier: GPL-2.0+ +// +// AMD ALSA SoC PDM Driver +// +//Copyright 2020 Advanced Micro Devices, Inc. + +#include +#include +#include +#include +#include +#include +#include + +#include "rn_acp3x.h" + +#define DRV_NAME "acp_rn_pdm_dma" + +static struct snd_soc_dai_driver acp_pdm_dai_driver = { + .capture = { + .rates = SNDRV_PCM_RATE_48000, + .formats = SNDRV_PCM_FMTBIT_S24_LE | + SNDRV_PCM_FMTBIT_S32_LE, + .channels_min = 2, + .channels_max = 2, + .rate_min = 48000, + .rate_max = 48000, + }, +}; + +static const struct snd_soc_component_driver acp_pdm_component = { + .name = DRV_NAME, +}; + +static int acp_pdm_audio_probe(struct platform_device *pdev) +{ + struct resource *res; + struct pdm_dev_data *adata; + unsigned int irqflags; + int status; + + if (!pdev->dev.platform_data) { + dev_err(&pdev->dev, "platform_data not retrieved\n"); + return -ENODEV; + } + irqflags = *((unsigned int *)(pdev->dev.platform_data)); + + 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->acp_base = devm_ioremap(&pdev->dev, res->start, + resource_size(res)); + if (!adata->acp_base) + return -ENOMEM; + + adata->capture_stream = NULL; + + dev_set_drvdata(&pdev->dev, adata); + status = devm_snd_soc_register_component(&pdev->dev, + &acp_pdm_component, + &acp_pdm_dai_driver, 1); + if (status) { + dev_err(&pdev->dev, "Fail to register acp pdm dai\n"); + + return -ENODEV; + } + return 0; +} + +static int acp_pdm_audio_remove(struct platform_device *pdev) +{ + return 0; +} + +static struct platform_driver acp_pdm_dma_driver = { + .probe = acp_pdm_audio_probe, + .remove = acp_pdm_audio_remove, + .driver = { + .name = "acp_rn_pdm_dma", + }, +}; + +module_platform_driver(acp_pdm_dma_driver); + +MODULE_AUTHOR("Vijendar.Mukunda@amd.com"); +MODULE_DESCRIPTION("AMD ACP3x Renior PDM Driver"); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:" DRV_NAME); diff --git a/sound/soc/amd/renoir/rn_acp3x.h b/sound/soc/amd/renoir/rn_acp3x.h index 5e4fd99397d5..0b450882c6c4 100644 --- a/sound/soc/amd/renoir/rn_acp3x.h +++ b/sound/soc/amd/renoir/rn_acp3x.h @@ -29,6 +29,11 @@ #define ACP_ERROR_MASK 0x20000000 #define ACP_EXT_INTR_STAT_CLEAR_MASK 0xFFFFFFFF +struct pdm_dev_data { + void __iomem *acp_base; + struct snd_pcm_substream *capture_stream; +}; + static inline u32 rn_readl(void __iomem *base_addr) { return readl(base_addr - ACP_PHY_BASE_ADDRESS);