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Commit 87b132bc authored by Vasily Khoruzhick's avatar Vasily Khoruzhick Committed by Mark Brown
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ASoC: samsung: s3c24{xx,12}-i2s: port to use generic dmaengine API 



Use dmaengine instead of legacy s3c24xx DMA API for s3c24xx and s3c2412

Signed-off-by: default avatarVasily Khoruzhick <anarsoul@gmail.com>
Signed-off-by: default avatarMark Brown <broonie@linaro.org>
parent 5264d0e6

sound/soc/samsung/Kconfig

+3 −6
Original line number Diff line number Diff line 
config SND_SOC_SAMSUNG

	tristate "ASoC support for Samsung"

	depends on PLAT_SAMSUNG

	select S3C2410_DMA if ARCH_S3C24XX

	select S3C24XX_DMAC if ARCH_S3C24XX

	select S3C64XX_PL080 if ARCH_S3C64XX

	select SND_S3C_DMA if !ARCH_S3C24XX

	select SND_S3C_DMA_LEGACY if ARCH_S3C24XX

	select SND_SOC_GENERIC_DMAENGINE_PCM if !ARCH_S3C24XX

	select SND_S3C_DMA

	select SND_SOC_GENERIC_DMAENGINE_PCM

	help

	  Say Y or M if you want to add support for codecs attached to

	  the Samsung SoCs' Audio interfaces. You will also need to
@@ -19,7 +18,6 @@ config SND_S3C_DMA_LEGACY 


config SND_S3C24XX_I2S

	tristate

	select S3C24XX_DMA



config SND_S3C_I2SV2_SOC

	tristate
@@ -27,7 +25,6 @@ config SND_S3C_I2SV2_SOC 
config SND_S3C2412_SOC_I2S

	tristate

	select SND_S3C_I2SV2_SOC

	select S3C2410_DMA



config SND_SAMSUNG_PCM

	tristate

sound/soc/samsung/dmaengine.c

+3 −0
Original line number Diff line number Diff line
@@ -17,6 +17,7 @@ 


#include <linux/module.h>

#include <linux/amba/pl08x.h>

#include <linux/platform_data/dma-s3c24xx.h>



#include <sound/core.h>

#include <sound/pcm.h>
@@ -29,6 +30,8 @@ 


#ifdef CONFIG_ARCH_S3C64XX

#define filter_fn pl08x_filter_id

#elif defined(CONFIG_ARCH_S3C24XX)

#define filter_fn s3c24xx_dma_filter

#else

#define filter_fn NULL

#endif

sound/soc/samsung/s3c-i2s-v2.c

+1 −16
Original line number Diff line number Diff line
@@ -392,8 +392,6 @@ static int s3c2412_i2s_trigger(struct snd_pcm_substream *substream, int cmd, 
	int capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE);

	unsigned long irqs;

	int ret = 0;

	struct s3c_dma_params *dma_data =

		snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);



	pr_debug("Entered %s\n", __func__);
@@ -424,13 +422,6 @@ static int s3c2412_i2s_trigger(struct snd_pcm_substream *substream, int cmd, 


		local_irq_restore(irqs);



		/*

		 * Load the next buffer to DMA to meet the reqirement

		 * of the auto reload mechanism of S3C24XX.

		 * This call won't bother S3C64XX.

		 */

		s3c2410_dma_ctrl(dma_data->channel, S3C2410_DMAOP_STARTED);



		break;



	case SNDRV_PCM_TRIGGER_STOP:
@@ -644,12 +635,6 @@ int s3c_i2sv2_probe(struct snd_soc_dai *dai, 
	/* record our i2s structure for later use in the callbacks */

	snd_soc_dai_set_drvdata(dai, i2s);



	i2s->regs = ioremap(base, 0x100);

	if (i2s->regs == NULL) {

		dev_err(dev, "cannot ioremap registers\n");

		return -ENXIO;

	}



	i2s->iis_pclk = clk_get(dev, "iis");

	if (IS_ERR(i2s->iis_pclk)) {

		dev_err(dev, "failed to get iis_clock\n");
@@ -729,7 +714,7 @@ int s3c_i2sv2_register_component(struct device *dev, int id, 
			   struct snd_soc_component_driver *cmp_drv,

			   struct snd_soc_dai_driver *dai_drv)

{

	struct snd_soc_dai_ops *ops = dai_drv->ops;

	struct snd_soc_dai_ops *ops = (struct snd_soc_dai_ops *)dai_drv->ops;



	ops->trigger = s3c2412_i2s_trigger;

	if (!ops->hw_params)

sound/soc/samsung/s3c2412-i2s.c

+23 −24
Original line number Diff line number Diff line
@@ -33,25 +33,19 @@ 
#include "regs-i2s-v2.h"

#include "s3c2412-i2s.h"



static struct s3c_dma_client s3c2412_dma_client_out = {

	.name		= "I2S PCM Stereo out"

};



static struct s3c_dma_client s3c2412_dma_client_in = {

	.name		= "I2S PCM Stereo in"

};



static struct s3c_dma_params s3c2412_i2s_pcm_stereo_out = {

	.client		= &s3c2412_dma_client_out,

	.client		=

		(struct s3c_dma_client *)&s3c2412_i2s_pcm_stereo_out,

	.channel	= DMACH_I2S_OUT,

	.dma_addr	= S3C2410_PA_IIS + S3C2412_IISTXD,

	.ch_name	= "tx",

	.dma_size	= 4,

};



static struct s3c_dma_params s3c2412_i2s_pcm_stereo_in = {

	.client		= &s3c2412_dma_client_in,

	.client		=

		(struct s3c_dma_client *)&s3c2412_i2s_pcm_stereo_in,

	.channel	= DMACH_I2S_IN,

	.dma_addr	= S3C2410_PA_IIS + S3C2412_IISRXD,

	.ch_name	= "rx",

	.dma_size	= 4,

};
@@ -63,6 +57,9 @@ static int s3c2412_i2s_probe(struct snd_soc_dai *dai) 


	pr_debug("Entered %s\n", __func__);



	samsung_asoc_init_dma_data(dai, &s3c2412_i2s_pcm_stereo_out,

		&s3c2412_i2s_pcm_stereo_in);



	ret = s3c_i2sv2_probe(dai, &s3c2412_i2s, S3C2410_PA_IIS);

	if (ret)

		return ret;
@@ -70,10 +67,9 @@ static int s3c2412_i2s_probe(struct snd_soc_dai *dai) 
	s3c2412_i2s.dma_capture = &s3c2412_i2s_pcm_stereo_in;

	s3c2412_i2s.dma_playback = &s3c2412_i2s_pcm_stereo_out;



	s3c2412_i2s.iis_cclk = clk_get(dai->dev, "i2sclk");

	s3c2412_i2s.iis_cclk = devm_clk_get(dai->dev, "i2sclk");

	if (IS_ERR(s3c2412_i2s.iis_cclk)) {

		pr_err("failed to get i2sclk clock\n");

		iounmap(s3c2412_i2s.regs);

		return PTR_ERR(s3c2412_i2s.iis_cclk);

	}
@@ -94,8 +90,6 @@ static int s3c2412_i2s_probe(struct snd_soc_dai *dai) 
static int s3c2412_i2s_remove(struct snd_soc_dai *dai)

{

	clk_disable(s3c2412_i2s.iis_cclk);

	clk_put(s3c2412_i2s.iis_cclk);

	iounmap(s3c2412_i2s.regs);



	return 0;

}
@@ -105,18 +99,10 @@ static int s3c2412_i2s_hw_params(struct snd_pcm_substream *substream, 
				 struct snd_soc_dai *cpu_dai)

{

	struct s3c_i2sv2_info *i2s = snd_soc_dai_get_drvdata(cpu_dai);

	struct s3c_dma_params *dma_data;

	u32 iismod;



	pr_debug("Entered %s\n", __func__);



	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)

		dma_data = i2s->dma_playback;

	else

		dma_data = i2s->dma_capture;



	snd_soc_dai_set_dma_data(cpu_dai, substream, dma_data);



	iismod = readl(i2s->regs + S3C2412_IISMOD);

	pr_debug("%s: r: IISMOD: %x\n", __func__, iismod);
@@ -169,6 +155,19 @@ static const struct snd_soc_component_driver s3c2412_i2s_component = { 
static int s3c2412_iis_dev_probe(struct platform_device *pdev)

{

	int ret = 0;

	struct resource *res;



	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);

	if (!res) {

		dev_err(&pdev->dev, "Can't get IO resource.\n");

		return -ENOENT;

	}

	s3c2412_i2s.regs = devm_ioremap_resource(&pdev->dev, res);

	if (s3c2412_i2s.regs == NULL)

		return -ENXIO;



	s3c2412_i2s_pcm_stereo_out.dma_addr = res->start + S3C2412_IISTXD;

	s3c2412_i2s_pcm_stereo_in.dma_addr = res->start + S3C2412_IISRXD;



	ret = s3c_i2sv2_register_component(&pdev->dev, -1,

					   &s3c2412_i2s_component,

sound/soc/samsung/s3c24xx-i2s.c

+26 −30
Original line number Diff line number Diff line
@@ -31,25 +31,19 @@ 
#include "dma.h"

#include "s3c24xx-i2s.h"



static struct s3c_dma_client s3c24xx_dma_client_out = {

	.name = "I2S PCM Stereo out"

};



static struct s3c_dma_client s3c24xx_dma_client_in = {

	.name = "I2S PCM Stereo in"

};



static struct s3c_dma_params s3c24xx_i2s_pcm_stereo_out = {

	.client		= &s3c24xx_dma_client_out,

	.client		=

		(struct s3c_dma_client *)&s3c24xx_i2s_pcm_stereo_out,

	.channel	= DMACH_I2S_OUT,

	.dma_addr	= S3C2410_PA_IIS + S3C2410_IISFIFO,

	.ch_name	= "tx",

	.dma_size	= 2,

};



static struct s3c_dma_params s3c24xx_i2s_pcm_stereo_in = {

	.client		= &s3c24xx_dma_client_in,

	.client		=

		(struct s3c_dma_client *)&s3c24xx_i2s_pcm_stereo_in,

	.channel	= DMACH_I2S_IN,

	.dma_addr	= S3C2410_PA_IIS + S3C2410_IISFIFO,

	.ch_name	= "rx",

	.dma_size	= 2,

};
@@ -231,18 +225,12 @@ static int s3c24xx_i2s_hw_params(struct snd_pcm_substream *substream, 
				 struct snd_pcm_hw_params *params,

				 struct snd_soc_dai *dai)

{

	struct snd_soc_pcm_runtime *rtd = substream->private_data;

	struct s3c_dma_params *dma_data;

	struct snd_dmaengine_dai_dma_data *dma_data;

	u32 iismod;



	pr_debug("Entered %s\n", __func__);



	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)

		dma_data = &s3c24xx_i2s_pcm_stereo_out;

	else

		dma_data = &s3c24xx_i2s_pcm_stereo_in;



	snd_soc_dai_set_dma_data(rtd->cpu_dai, substream, dma_data);

	dma_data = snd_soc_dai_get_dma_data(dai, substream);



	/* Working copies of register */

	iismod = readl(s3c24xx_i2s.regs + S3C2410_IISMOD);
@@ -251,11 +239,11 @@ static int s3c24xx_i2s_hw_params(struct snd_pcm_substream *substream, 
	switch (params_width(params)) {

	case 8:

		iismod &= ~S3C2410_IISMOD_16BIT;

		dma_data->dma_size = 1;

		dma_data->addr_width = 1;

		break;

	case 16:

		iismod |= S3C2410_IISMOD_16BIT;

		dma_data->dma_size = 2;

		dma_data->addr_width = 2;

		break;

	default:

		return -EINVAL;
@@ -270,8 +258,6 @@ static int s3c24xx_i2s_trigger(struct snd_pcm_substream *substream, int cmd, 
			       struct snd_soc_dai *dai)

{

	int ret = 0;

	struct s3c_dma_params *dma_data =

		snd_soc_dai_get_dma_data(dai, substream);



	pr_debug("Entered %s\n", __func__);
@@ -290,7 +276,6 @@ static int s3c24xx_i2s_trigger(struct snd_pcm_substream *substream, int cmd, 
		else

			s3c24xx_snd_txctrl(1);



		s3c2410_dma_ctrl(dma_data->channel, S3C2410_DMAOP_STARTED);

		break;

	case SNDRV_PCM_TRIGGER_STOP:

	case SNDRV_PCM_TRIGGER_SUSPEND:
@@ -380,14 +365,12 @@ static int s3c24xx_i2s_probe(struct snd_soc_dai *dai) 
{

	pr_debug("Entered %s\n", __func__);



	s3c24xx_i2s.regs = ioremap(S3C2410_PA_IIS, 0x100);

	if (s3c24xx_i2s.regs == NULL)

		return -ENXIO;

	samsung_asoc_init_dma_data(dai, &s3c24xx_i2s_pcm_stereo_out,

		&s3c24xx_i2s_pcm_stereo_in);



	s3c24xx_i2s.iis_clk = clk_get(dai->dev, "iis");

	s3c24xx_i2s.iis_clk = devm_clk_get(dai->dev, "iis");

	if (IS_ERR(s3c24xx_i2s.iis_clk)) {

		pr_err("failed to get iis_clock\n");

		iounmap(s3c24xx_i2s.regs);

		return PTR_ERR(s3c24xx_i2s.iis_clk);

	}

	clk_enable(s3c24xx_i2s.iis_clk);
@@ -474,6 +457,19 @@ static const struct snd_soc_component_driver s3c24xx_i2s_component = { 
static int s3c24xx_iis_dev_probe(struct platform_device *pdev)

{

	int ret = 0;

	struct resource *res;



	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);

	if (!res) {

		dev_err(&pdev->dev, "Can't get IO resource.\n");

		return -ENOENT;

	}

	s3c24xx_i2s.regs = devm_ioremap_resource(&pdev->dev, res);

	if (s3c24xx_i2s.regs == NULL)

		return -ENXIO;



	s3c24xx_i2s_pcm_stereo_out.dma_addr = res->start + S3C2410_IISFIFO;

	s3c24xx_i2s_pcm_stereo_in.dma_addr = res->start + S3C2410_IISFIFO;



	ret = devm_snd_soc_register_component(&pdev->dev,

			&s3c24xx_i2s_component, &s3c24xx_i2s_dai, 1);