static int s3c64xx_i2s_probe(struct snd_soc_dai *dai)
{
struct s3c_i2sv2_info *i2s;
int ret;
if (dai->id >= MAX_I2SV3) {
dev_err(dai->dev, "id %d out of range\n", dai->id);
return -EINVAL;
}
i2s = &s3c64xx_i2s[dai->id];
snd_soc_dai_set_drvdata(dai, i2s);
i2s->iis_cclk = clk_get(dai->dev, "audio-bus");
if (IS_ERR(i2s->iis_cclk)) {
dev_err(dai->dev, "failed to get audio-bus\n");
ret = PTR_ERR(i2s->iis_cclk);
goto err;
}
clk_enable(i2s->iis_cclk);
ret = s3c_i2sv2_probe(dai, i2s, i2s->base);
if (ret)
goto err_clk;
return 0;
err_clk:
clk_disable(i2s->iis_cclk);
clk_put(i2s->iis_cclk);
err:
kfree(i2s);
return ret;
}
static int s3c2412_i2s_probe(struct snd_soc_dai *dai)
{
int ret;
pr_debug("Entered %s\n", __func__);
snd_soc_dai_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;
s3c2412_i2s.dma_capture = &s3c2412_i2s_pcm_stereo_in;
s3c2412_i2s.dma_playback = &s3c2412_i2s_pcm_stereo_out;
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");
return PTR_ERR(s3c2412_i2s.iis_cclk);
}
/* Set MPLL as the source for IIS CLK */
clk_set_parent(s3c2412_i2s.iis_cclk, clk_get(NULL, "mpll"));
clk_prepare_enable(s3c2412_i2s.iis_cclk);
s3c2412_i2s.iis_cclk = s3c2412_i2s.iis_pclk;
/* Configure the I2S pins (GPE0...GPE4) in correct mode */
s3c_gpio_cfgall_range(S3C2410_GPE(0), 5, S3C_GPIO_SFN(2),
S3C_GPIO_PULL_NONE);
return 0;
}
static int s3c64xx_i2sv4_probe(struct snd_soc_dai *dai)
{
struct s3c_i2sv2_info *i2s = &s3c64xx_i2sv4;
int ret = 0;
snd_soc_dai_set_drvdata(dai, i2s);
ret = s3c_i2sv2_probe(dai, i2s, i2s->base);
return ret;
}
static int s3c64xx_i2s_probe(struct platform_device *pdev,
struct snd_soc_dai *dai)
{
struct device *dev = &pdev->dev;
struct s3c_i2sv2_info *i2s;
int ret;
dev_dbg(dev, "%s: probing dai %d\n", __func__, pdev->id);
if (pdev->id < 0 || pdev->id > ARRAY_SIZE(s3c64xx_i2s)) {
dev_err(dev, "id %d out of range\n", pdev->id);
return -EINVAL;
}
i2s = &s3c64xx_i2s[pdev->id];
ret = s3c_i2sv2_probe(pdev, dai, i2s,
pdev->id ? S3C64XX_PA_IIS1 : S3C64XX_PA_IIS0);
if (ret)
return ret;
i2s->dma_capture = &s3c64xx_i2s_pcm_stereo_in[pdev->id];
i2s->dma_playback = &s3c64xx_i2s_pcm_stereo_out[pdev->id];
i2s->iis_cclk = clk_get(dev, "audio-bus");
if (IS_ERR(i2s->iis_cclk)) {
dev_err(dev, "failed to get audio-bus");
iounmap(i2s->regs);
return -ENODEV;
}
/* configure GPIO for i2s port */
switch (pdev->id) {
case 0:
s3c_gpio_cfgpin(S3C64XX_GPD(0), S3C64XX_GPD0_I2S0_CLK);
s3c_gpio_cfgpin(S3C64XX_GPD(1), S3C64XX_GPD1_I2S0_CDCLK);
s3c_gpio_cfgpin(S3C64XX_GPD(2), S3C64XX_GPD2_I2S0_LRCLK);
s3c_gpio_cfgpin(S3C64XX_GPD(3), S3C64XX_GPD3_I2S0_DI);
s3c_gpio_cfgpin(S3C64XX_GPD(4), S3C64XX_GPD4_I2S0_D0);
break;
case 1:
s3c_gpio_cfgpin(S3C64XX_GPE(0), S3C64XX_GPE0_I2S1_CLK);
s3c_gpio_cfgpin(S3C64XX_GPE(1), S3C64XX_GPE1_I2S1_CDCLK);
s3c_gpio_cfgpin(S3C64XX_GPE(2), S3C64XX_GPE2_I2S1_LRCLK);
s3c_gpio_cfgpin(S3C64XX_GPE(3), S3C64XX_GPE3_I2S1_DI);
s3c_gpio_cfgpin(S3C64XX_GPE(4), S3C64XX_GPE4_I2S1_D0);
}
return 0;
}
static __devinit int s3c64xx_iis_dev_probe(struct platform_device *pdev)
{
struct s3c_i2sv2_info *i2s;
struct snd_soc_dai *dai;
int ret;
if (pdev->id >= ARRAY_SIZE(s3c64xx_i2s)) {
dev_err(&pdev->dev, "id %d out of range\n", pdev->id);
return -EINVAL;
}
i2s = &s3c64xx_i2s[pdev->id];
dai = &s3c64xx_i2s_dai[pdev->id];
//dai->dev = &pdev->dev;
i2s->dma_capture = &s3c64xx_i2s_pcm_stereo_in[pdev->id];
i2s->dma_playback = &s3c64xx_i2s_pcm_stereo_out[pdev->id];
i2s->iis_cclk = clk_get(&pdev->dev, "audio-bus");
if (IS_ERR(i2s->iis_cclk)) {
dev_err(&pdev->dev, "failed to get audio-bus\n");
ret = PTR_ERR(i2s->iis_cclk);
goto err;
}
clk_enable(i2s->iis_cclk);
ret = s3c_i2sv2_probe(pdev, dai, i2s, 0);
if (ret) {
goto err_clk;
}
ret = s3c_i2sv2_register_dai(dai);
if (ret != 0) {
goto err_i2sv2;
}
return 0;
err_i2sv2:
/* Not implemented for I2Sv2 core yet */
err_clk:
clk_put(i2s->iis_cclk);
err:
return ret;
}
static int s3c2412_i2s_probe(struct platform_device *pdev,
struct snd_soc_dai *dai)
{
int ret;
pr_debug("Entered %s\n", __func__);
ret = s3c_i2sv2_probe(pdev, dai, &s3c2412_i2s, S3C2410_PA_IIS);
if (ret)
return ret;
s3c2412_i2s.dma_capture = &s3c2412_i2s_pcm_stereo_in;
s3c2412_i2s.dma_playback = &s3c2412_i2s_pcm_stereo_out;
s3c2412_i2s.iis_cclk = clk_get(&pdev->dev, "i2sclk");
if (s3c2412_i2s.iis_cclk == NULL) {
pr_debug("failed to get i2sclk clock\n");
iounmap(s3c2412_i2s.regs);
return -ENODEV;
}
/* Set MPLL as the source for IIS CLK */
clk_set_parent(s3c2412_i2s.iis_cclk, clk_get(NULL, "mpll"));
clk_enable(s3c2412_i2s.iis_cclk);
s3c2412_i2s.iis_cclk = s3c2412_i2s.iis_pclk;
/* Configure the I2S pins in correct mode */
s3c2410_gpio_cfgpin(S3C2410_GPE0, S3C2410_GPE0_I2SLRCK);
s3c2410_gpio_cfgpin(S3C2410_GPE1, S3C2410_GPE1_I2SSCLK);
s3c2410_gpio_cfgpin(S3C2410_GPE2, S3C2410_GPE2_CDCLK);
s3c2410_gpio_cfgpin(S3C2410_GPE3, S3C2410_GPE3_I2SSDI);
s3c2410_gpio_cfgpin(S3C2410_GPE4, S3C2410_GPE4_I2SSDO);
return 0;
}
static __devinit int s3c64xx_iis_dev_probe(struct platform_device *pdev)
{
struct s3c_i2sv2_info *i2s;
struct snd_soc_dai *dai;
int ret;
if (pdev->id >= MAX_I2SV3) {
dev_err(&pdev->dev, "id %d out of range\n", pdev->id);
return -EINVAL;
}
i2s = &s3c64xx_i2s[pdev->id];
dai = &s3c64xx_i2s_dai[pdev->id];
dai->dev = &pdev->dev;
dai->name = "s3c64xx-i2s";
dai->id = pdev->id;
dai->symmetric_rates = 1;
dai->playback.channels_min = 2;
dai->playback.channels_max = 2;
dai->playback.rates = S3C64XX_I2S_RATES;
dai->playback.formats = S3C64XX_I2S_FMTS;
dai->capture.channels_min = 2;
dai->capture.channels_max = 2;
dai->capture.rates = S3C64XX_I2S_RATES;
dai->capture.formats = S3C64XX_I2S_FMTS;
dai->probe = s3c64xx_i2s_probe;
dai->ops = &s3c64xx_i2s_dai_ops;
i2s->feature |= S3C_FEATURE_CDCLKCON;
i2s->dma_capture = &s3c64xx_i2s_pcm_stereo_in[pdev->id];
i2s->dma_playback = &s3c64xx_i2s_pcm_stereo_out[pdev->id];
if (pdev->id == 0) {
i2s->dma_capture->channel = DMACH_I2S0_IN;
i2s->dma_capture->dma_addr = S3C64XX_PA_IIS0 + S3C2412_IISRXD;
i2s->dma_playback->channel = DMACH_I2S0_OUT;
i2s->dma_playback->dma_addr = S3C64XX_PA_IIS0 + S3C2412_IISTXD;
} else {
i2s->dma_capture->channel = DMACH_I2S1_IN;
i2s->dma_capture->dma_addr = S3C64XX_PA_IIS1 + S3C2412_IISRXD;
i2s->dma_playback->channel = DMACH_I2S1_OUT;
i2s->dma_playback->dma_addr = S3C64XX_PA_IIS1 + S3C2412_IISTXD;
}
i2s->dma_capture->client = &s3c64xx_dma_client_in;
i2s->dma_capture->dma_size = 4;
i2s->dma_playback->client = &s3c64xx_dma_client_out;
i2s->dma_playback->dma_size = 4;
i2s->iis_cclk = clk_get(&pdev->dev, "audio-bus");
if (IS_ERR(i2s->iis_cclk)) {
dev_err(&pdev->dev, "failed to get audio-bus\n");
ret = PTR_ERR(i2s->iis_cclk);
goto err;
}
clk_enable(i2s->iis_cclk);
ret = s3c_i2sv2_probe(pdev, dai, i2s, 0);
if (ret)
goto err_clk;
ret = s3c_i2sv2_register_dai(dai);
if (ret != 0)
goto err_i2sv2;
return 0;
err_i2sv2:
/* Not implemented for I2Sv2 core yet */
err_clk:
clk_put(i2s->iis_cclk);
err:
return ret;
}