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From: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
To: <broonie@kernel.org>, <alsa-devel@alsa-project.org>
Cc: <Alexander.Deucher@amd.com>, <Sunil-kumar.Dommati@amd.com>,
	<krisman@collabora.com>,
	Vijendar Mukunda <Vijendar.Mukunda@amd.com>,
	"Liam Girdwood" <lgirdwood@gmail.com>,
	Jaroslav Kysela <perex@perex.cz>, "Takashi Iwai" <tiwai@suse.com>,
	open list <linux-kernel@vger.kernel.org>
Subject: [PATCH v4 05/12] ASoC: amd: add ACP5x PCM platform driver
Date: Tue, 20 Jul 2021 22:07:25 +0530	[thread overview]
Message-ID: <20210720163732.23003-6-Vijendar.Mukunda@amd.com> (raw)
In-Reply-To: <20210720163732.23003-1-Vijendar.Mukunda@amd.com>

PCM platform driver binds to the platform device created by
ACP5x PCI device. PCM driver registers ALSA DMA components
with ASoC framework.

Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
---
 sound/soc/amd/vangogh/acp5x-pcm-dma.c | 72 +++++++++++++++++++++++++++
 sound/soc/amd/vangogh/acp5x.h         |  4 ++
 2 files changed, 76 insertions(+)
 create mode 100644 sound/soc/amd/vangogh/acp5x-pcm-dma.c

diff --git a/sound/soc/amd/vangogh/acp5x-pcm-dma.c b/sound/soc/amd/vangogh/acp5x-pcm-dma.c
new file mode 100644
index 000000000000..7d397acb3632
--- /dev/null
+++ b/sound/soc/amd/vangogh/acp5x-pcm-dma.c
@@ -0,0 +1,72 @@
+// SPDX-License-Identifier: GPL-2.0+
+//
+// AMD ALSA SoC PCM Driver
+//
+// Copyright (C) 2021 Advanced Micro Devices, Inc. All rights reserved.
+
+#include <linux/platform_device.h>
+#include <linux/module.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/soc-dai.h>
+
+#include "acp5x.h"
+
+#define DRV_NAME "acp5x_i2s_dma"
+
+static const struct snd_soc_component_driver acp5x_i2s_component = {
+	.name		= DRV_NAME,
+};
+
+static int acp5x_audio_probe(struct platform_device *pdev)
+{
+	struct resource *res;
+	struct i2s_dev_data *adata;
+	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->acp5x_base = devm_ioremap(&pdev->dev, res->start,
+					 resource_size(res));
+	if (!adata->acp5x_base)
+		return -ENOMEM;
+	dev_set_drvdata(&pdev->dev, adata);
+	status = devm_snd_soc_register_component(&pdev->dev,
+						 &acp5x_i2s_component,
+						 NULL, 0);
+	if (status)
+		dev_err(&pdev->dev, "Fail to register acp i2s component\n");
+
+	return status;
+}
+
+static struct platform_driver acp5x_dma_driver = {
+	.probe = acp5x_audio_probe,
+	.driver = {
+		.name = "acp5x_i2s_dma",
+	},
+};
+
+module_platform_driver(acp5x_dma_driver);
+
+MODULE_AUTHOR("Vijendar.Mukunda@amd.com");
+MODULE_DESCRIPTION("AMD ACP 5.x PCM Driver");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:" DRV_NAME);
diff --git a/sound/soc/amd/vangogh/acp5x.h b/sound/soc/amd/vangogh/acp5x.h
index 32e5db10c1c8..e450fb32d680 100644
--- a/sound/soc/amd/vangogh/acp5x.h
+++ b/sound/soc/amd/vangogh/acp5x.h
@@ -33,6 +33,10 @@
 #define ACP5x_I2S_MODE 1
 #define ACP5x_RES 4
 
+struct i2s_dev_data {
+	void __iomem *acp5x_base;
+};
+
 /* common header file uses exact offset rather than relative
  * offset which requires subtraction logic from base_addr
  * for accessing ACP5x MMIO space registers
-- 
2.17.1


  parent reply	other threads:[~2021-07-20 16:27 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20210720163732.23003-1-Vijendar.Mukunda@amd.com>
2021-07-20 16:37 ` [PATCH v4 01/12] ASoC: amd: add Vangogh ACP5x IP register header Vijendar Mukunda
2021-07-20 16:37 ` [PATCH v4 02/12] ASoC: amd: add Vangogh ACP PCI driver Vijendar Mukunda
2021-07-20 16:37 ` [PATCH v4 03/12] ASoc: amd: add acp5x init/de-init functions Vijendar Mukunda
2021-07-20 16:37 ` [PATCH v4 04/12] ASoC: amd: create acp5x platform devices Vijendar Mukunda
2021-07-20 16:37 ` Vijendar Mukunda [this message]
2021-07-20 18:12   ` [PATCH v4 05/12] ASoC: amd: add ACP5x PCM platform driver Pierre-Louis Bossart
2021-07-20 23:11     ` Mukunda,Vijendar
2021-07-20 16:37 ` [PATCH v4 06/12] ASoC: amd: irq handler changes for ACP5x PCM dma driver Vijendar Mukunda
2021-07-20 16:37 ` [PATCH v4 07/12] ASoC: amd: add ACP5x pcm dma driver ops Vijendar Mukunda
2021-07-20 18:27   ` Pierre-Louis Bossart
2021-07-20 23:10     ` Mukunda,Vijendar
2021-07-20 16:37 ` [PATCH v4 08/12] ASoC: amd: add vangogh i2s controller driver Vijendar Mukunda
2021-07-20 16:37 ` [PATCH v4 09/12] ASoC: amd: add vangogh i2s dai driver ops Vijendar Mukunda
2021-07-20 18:30   ` Pierre-Louis Bossart
2021-07-20 23:08     ` Mukunda,Vijendar
2021-07-20 16:37 ` [PATCH v4 10/12] ASoC: amd: add vangogh pci driver pm ops Vijendar Mukunda
2021-07-20 16:37 ` [PATCH v4 11/12] ASoC: amd: add vangogh i2s dma " Vijendar Mukunda
2021-07-20 16:37 ` [PATCH v4 12/12] ASoC: amd: enable vangogh acp5x driver build Vijendar Mukunda
2021-07-20 18:31   ` Pierre-Louis Bossart
2021-07-20 23:06     ` Mukunda,Vijendar

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