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>,
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 RESEND V2 05/12] ASoC: amd: add ACP5x PCM platform driver
Date: Sat, 17 Jul 2021 09:30:52 +0530 [thread overview]
Message-ID: <20210717040059.310410-6-Vijendar.Mukunda@amd.com> (raw)
In-Reply-To: <20210717040059.310410-1-Vijendar.Mukunda@amd.com>
From: Vijendar Mukunda <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>
---
v1 -> v2: drop acp5x_audio_remove() API
---
sound/soc/amd/vangogh/acp5x-pcm-dma.c | 73 +++++++++++++++++++++++++++
sound/soc/amd/vangogh/acp5x.h | 4 ++
2 files changed, 77 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..2ff11bb88305
--- /dev/null
+++ b/sound/soc/amd/vangogh/acp5x-pcm-dma.c
@@ -0,0 +1,73 @@
+// 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 -ENODEV;
+ }
+ return 0;
+}
+
+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 bbf29fd2b12f..d2853738eb17 100644
--- a/sound/soc/amd/vangogh/acp5x.h
+++ b/sound/soc/amd/vangogh/acp5x.h
@@ -32,6 +32,10 @@
#define I2S_MODE 0x00
#define ACP5x_I2S_MODE 0x00
+struct i2s_dev_data {
+ void __iomem *acp5x_base;
+};
+
/* common header file uses exact offset rather than relative
* offset which requires substraction logic from base_addr
* for accessing ACP5x MMIO space registers
--
2.25.1
next prev parent reply other threads:[~2021-07-16 19:43 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20210717040059.310410-1-Vijendar.Mukunda@amd.com>
2021-07-17 4:00 ` [PATCH RESEND 01/12] ASoC: amd: add Vangogh ACP5x IP register header Vijendar Mukunda
2021-07-17 4:00 ` [PATCH RESEND V2 02/12] ASoC: amd: add Vangogh ACP PCI driver Vijendar Mukunda
2021-07-17 4:00 ` [PATCH RESEND V2 03/12] ASoc: amd: add acp5x init/de-init functions Vijendar Mukunda
2021-07-17 4:00 ` [PATCH RESEND 04/12] ASoC: amd: create acp5x platform devices Vijendar Mukunda
2021-07-17 4:00 ` Vijendar Mukunda [this message]
2021-07-17 4:00 ` [PATCH RESEND 06/12] ASoC: amd: irq handler changes for ACP5x PCM dma driver Vijendar Mukunda
2021-07-17 4:00 ` [PATCH RESEND V2 07/12] ASoC: amd: add ACP5x pcm dma driver ops Vijendar Mukunda
2021-07-17 4:00 ` [PATCH RESEND V2 08/12] ASoC: amd: add vangogh i2s controller driver Vijendar Mukunda
2021-07-17 4:00 ` [PATCH RESEND V2 09/12] ASoC: amd: add vangogh i2s dai driver ops Vijendar Mukunda
2021-07-17 4:00 ` [PATCH RESEND V2 10/12] ASoC: amd: add vangogh pci driver pm ops Vijendar Mukunda
2021-07-17 4:00 ` [PATCH RESEND V2 11/12] ASoC: amd: add vangogh i2s dma " Vijendar Mukunda
2021-07-17 4:00 ` [PATCH V3 12/12] ASoC: amd: enable vangogh acp5x driver build Vijendar Mukunda
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