ASoC: rockchip: add config for rockchip dmaengine pcm register (75b31192) · Commits · 戴 / test

sound/soc/rockchip/Makefile

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		# SPDX-License-Identifier: GPL-2.0
		# ROCKCHIP Platform Support
		snd-soc-rockchip-i2s-objs := rockchip_i2s.o
		snd-soc-rockchip-pcm-objs := rockchip_pcm.o
		snd-soc-rockchip-pdm-objs := rockchip_pdm.o
		snd-soc-rockchip-spdif-objs := rockchip_spdif.o

		obj-$(CONFIG_SND_SOC_ROCKCHIP_I2S) += snd-soc-rockchip-i2s.o
		obj-$(CONFIG_SND_SOC_ROCKCHIP_I2S) += snd-soc-rockchip-i2s.o snd-soc-rockchip-pcm.o
		obj-$(CONFIG_SND_SOC_ROCKCHIP_PDM) += snd-soc-rockchip-pdm.o
		obj-$(CONFIG_SND_SOC_ROCKCHIP_SPDIF) += snd-soc-rockchip-spdif.o

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		@@ -22,6 +22,7 @@
		#include <sound/dmaengine_pcm.h>

		#include "rockchip_i2s.h"
		#include "rockchip_pcm.h"

		#define DRV_NAME "rockchip-i2s"

		@@ -674,7 +675,7 @@ static int rockchip_i2s_probe(struct platform_device *pdev)
		goto err_suspend;
		}

		ret = devm_snd_dmaengine_pcm_register(&pdev->dev, NULL, 0);
		ret = rockchip_pcm_platform_register(&pdev->dev);
		if (ret) {
		dev_err(&pdev->dev, "Could not register PCM\n");
		return ret;

0 → 100644

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		/*
		* Copyright (c) 2018 Rockchip Electronics Co. Ltd.
		*
		* This program is free software; you can redistribute it and/or modify
		* it under the terms of the GNU General Public License version 2 as
		* published by the Free Software Foundation.
		*/

		#include <linux/device.h>
		#include <linux/init.h>
		#include <linux/module.h>

		#include <sound/core.h>
		#include <sound/pcm.h>
		#include <sound/soc.h>
		#include <sound/dmaengine_pcm.h>

		#include "rockchip_pcm.h"

		static const struct snd_pcm_hardware snd_rockchip_hardware = {
		.info = SNDRV_PCM_INFO_MMAP \|
		SNDRV_PCM_INFO_MMAP_VALID \|
		SNDRV_PCM_INFO_PAUSE \|
		SNDRV_PCM_INFO_RESUME,
		.period_bytes_min = 32,
		.period_bytes_max = 8192,
		.periods_min = 1,
		.periods_max = 52,
		.buffer_bytes_max = 64 * 1024,
		.fifo_size = 32,
		};

		static const struct snd_dmaengine_pcm_config rk_dmaengine_pcm_config = {
		.pcm_hardware = &snd_rockchip_hardware,
		.prealloc_buffer_size = 32 * 1024,
		};

		int rockchip_pcm_platform_register(struct device *dev)
		{
		return devm_snd_dmaengine_pcm_register(dev, &rk_dmaengine_pcm_config,
		SND_DMAENGINE_PCM_FLAG_COMPAT);
		}
		EXPORT_SYMBOL_GPL(rockchip_pcm_platform_register);

		MODULE_LICENSE("GPL v2");

0 → 100644

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		/*
		* Copyright (c) 2018 Rockchip Electronics Co. Ltd.
		*
		* This program is free software; you can redistribute it and/or modify
		* it under the terms of the GNU General Public License version 2 as
		* published by the Free Software Foundation.
		*/

		#ifndef _ROCKCHIP_PCM_H
		#define _ROCKCHIP_PCM_H

		int rockchip_pcm_platform_register(struct device *dev);

		#endif