diff options
Diffstat (limited to '')
| -rw-r--r-- | sound/soc/samsung/s3c2412-i2s.c | 71 |
1 files changed, 60 insertions, 11 deletions
diff --git a/sound/soc/samsung/s3c2412-i2s.c b/sound/soc/samsung/s3c2412-i2s.c index 787a3f6e9f24..0579a352961c 100644 --- a/sound/soc/samsung/s3c2412-i2s.c +++ b/sound/soc/samsung/s3c2412-i2s.c @@ -19,9 +19,6 @@ #include <sound/soc.h> #include <sound/pcm_params.h> -#include <mach/gpio-samsung.h> -#include <plat/gpio-cfg.h> - #include "dma.h" #include "regs-i2s-v2.h" #include "s3c2412-i2s.h" @@ -49,7 +46,7 @@ static int s3c2412_i2s_probe(struct snd_soc_dai *dai) 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); + ret = s3c_i2sv2_probe(dai, &s3c2412_i2s); if (ret) return ret; @@ -70,10 +67,6 @@ static int s3c2412_i2s_probe(struct snd_soc_dai *dai) if (ret) goto err; - /* 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; err: @@ -117,6 +110,60 @@ static int s3c2412_i2s_hw_params(struct snd_pcm_substream *substream, return 0; } +#ifdef CONFIG_PM +static int s3c2412_i2s_suspend(struct snd_soc_component *component) +{ + struct s3c_i2sv2_info *i2s = snd_soc_component_get_drvdata(component); + u32 iismod; + + if (component->active) { + i2s->suspend_iismod = readl(i2s->regs + S3C2412_IISMOD); + i2s->suspend_iiscon = readl(i2s->regs + S3C2412_IISCON); + i2s->suspend_iispsr = readl(i2s->regs + S3C2412_IISPSR); + + /* some basic suspend checks */ + + iismod = readl(i2s->regs + S3C2412_IISMOD); + + if (iismod & S3C2412_IISCON_RXDMA_ACTIVE) + pr_warn("%s: RXDMA active?\n", __func__); + + if (iismod & S3C2412_IISCON_TXDMA_ACTIVE) + pr_warn("%s: TXDMA active?\n", __func__); + + if (iismod & S3C2412_IISCON_IIS_ACTIVE) + pr_warn("%s: IIS active\n", __func__); + } + + return 0; +} + +static int s3c2412_i2s_resume(struct snd_soc_component *component) +{ + struct s3c_i2sv2_info *i2s = snd_soc_component_get_drvdata(component); + + pr_info("component_active %d, IISMOD %08x, IISCON %08x\n", + component->active, i2s->suspend_iismod, i2s->suspend_iiscon); + + if (component->active) { + writel(i2s->suspend_iiscon, i2s->regs + S3C2412_IISCON); + writel(i2s->suspend_iismod, i2s->regs + S3C2412_IISMOD); + writel(i2s->suspend_iispsr, i2s->regs + S3C2412_IISPSR); + + writel(S3C2412_IISFIC_RXFLUSH | S3C2412_IISFIC_TXFLUSH, + i2s->regs + S3C2412_IISFIC); + + ndelay(250); + writel(0x0, i2s->regs + S3C2412_IISFIC); + } + + return 0; +} +#else +#define s3c2412_i2s_suspend NULL +#define s3c2412_i2s_resume NULL +#endif + #define S3C2412_I2S_RATES \ (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 | SNDRV_PCM_RATE_16000 | \ SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | \ @@ -145,7 +192,10 @@ static struct snd_soc_dai_driver s3c2412_i2s_dai = { }; static const struct snd_soc_component_driver s3c2412_i2s_component = { - .name = "s3c2412-i2s", + .name = "s3c2412-i2s", + .suspend = s3c2412_i2s_suspend, + .resume = s3c2412_i2s_resume, + .legacy_dai_naming = 1, }; static int s3c2412_iis_dev_probe(struct platform_device *pdev) @@ -159,8 +209,7 @@ static int s3c2412_iis_dev_probe(struct platform_device *pdev) return -ENXIO; } - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - s3c2412_i2s.regs = devm_ioremap_resource(&pdev->dev, res); + s3c2412_i2s.regs = devm_platform_get_and_ioremap_resource(pdev, 0, &res); if (IS_ERR(s3c2412_i2s.regs)) return PTR_ERR(s3c2412_i2s.regs); |