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author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-01-31 23:16:28 (GMT) |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-01-31 23:16:28 (GMT) |
commit | e1a9c9872dd004617555dff079b357a6ffd945e9 (patch) | |
tree | c34779e59712ff345f8e4ee97e74086a85b34974 /sound/soc/s3c24xx/s3c24xx-i2s.c | |
parent | fcc3ff4f9d695a80dc6e6058e0d631a3026ed4c3 (diff) | |
parent | 2ecba4ffbbc6c85fce8c3878514be415edace413 (diff) | |
download | linux-fsl-qoriq-e1a9c9872dd004617555dff079b357a6ffd945e9.tar.xz |
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/perex/alsa
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/perex/alsa: (299 commits)
[ALSA] version 1.0.16rc2
[ALSA] hda: fix Mic in as output
[ALSA] emu10k1 - Another EMU0404 Board ID
[ALSA] emu10k1 - Fix kthread handling at resume
[ALSA] emu10k1: General cleanup, add new locks, fix alsa bug#3501, kernel bug#9304.
[ALSA] emu10k1 - Use enum for emu_model types
[ALSA] emu10k1 - Don't create emu1010 controls for non-emu boards
[ALSA] emu10k1 - 1616(M) cardbus improvements
[ALSA] snd:emu10k1: E-Mu updates. Fixes to firmware loading and support for 0404.
[ALSA] emu10k1: Add comments regarding E-Mu ins and outs.
[ALSA] oxygen: revert SPI clock frequency change for AK4396/WM8785
[ALSA] es1938 - improve capture hw pointer reads
[ALSA] HDA-Intel - Add support for Intel SCH
[ALSA] hda: Add GPIO mute support to STAC9205
[ALSA] hda-codec - Add Dell T3400 support
[ALSA] hda-codec - Add model for HP DV9553EG laptop
[ALSA] hda-codec - Control SPDIF as slave
[ALSA] hda_intel: ALSA HD Audio patch for Intel ICH10 DeviceID's
[ALSA] Fix Oops with PCM OSS sync
[ALSA] hda-codec - Add speaker automute to ALC262 HP models
...
Diffstat (limited to 'sound/soc/s3c24xx/s3c24xx-i2s.c')
-rw-r--r-- | sound/soc/s3c24xx/s3c24xx-i2s.c | 45 |
1 files changed, 42 insertions, 3 deletions
diff --git a/sound/soc/s3c24xx/s3c24xx-i2s.c b/sound/soc/s3c24xx/s3c24xx-i2s.c index cd89c41..0a3c630 100644 --- a/sound/soc/s3c24xx/s3c24xx-i2s.c +++ b/sound/soc/s3c24xx/s3c24xx-i2s.c @@ -24,7 +24,7 @@ #include <linux/device.h> #include <linux/delay.h> #include <linux/clk.h> -#include <sound/driver.h> +#include <linux/jiffies.h> #include <sound/core.h> #include <sound/pcm.h> #include <sound/pcm_params.h> @@ -33,13 +33,14 @@ #include <asm/hardware.h> #include <asm/io.h> -#include <asm/arch/regs-iis.h> #include <asm/arch/regs-gpio.h> #include <asm/arch/regs-clock.h> #include <asm/arch/audio.h> #include <asm/dma.h> #include <asm/arch/dma.h> +#include <asm/plat-s3c24xx/regs-iis.h> + #include "s3c24xx-pcm.h" #include "s3c24xx-i2s.h" @@ -75,6 +76,10 @@ static struct s3c24xx_pcm_dma_params s3c24xx_i2s_pcm_stereo_in = { struct s3c24xx_i2s_info { void __iomem *regs; struct clk *iis_clk; + u32 iiscon; + u32 iismod; + u32 iisfcon; + u32 iispsr; }; static struct s3c24xx_i2s_info s3c24xx_i2s; @@ -184,7 +189,7 @@ static int s3c24xx_snd_lrsync(void) if (iiscon & S3C2410_IISCON_LRINDEX) break; - if (timeout < jiffies) + if (time_after(jiffies, timeout)) return -ETIMEDOUT; } @@ -405,6 +410,38 @@ static int s3c24xx_i2s_probe(struct platform_device *pdev) return 0; } +#ifdef CONFIG_PM +int s3c24xx_i2s_suspend(struct platform_device *pdev, + struct snd_soc_cpu_dai *cpu_dai) +{ + s3c24xx_i2s.iiscon = readl(s3c24xx_i2s.regs + S3C2410_IISCON); + s3c24xx_i2s.iismod = readl(s3c24xx_i2s.regs + S3C2410_IISMOD); + s3c24xx_i2s.iisfcon = readl(s3c24xx_i2s.regs + S3C2410_IISFCON); + s3c24xx_i2s.iispsr = readl(s3c24xx_i2s.regs + S3C2410_IISPSR); + + clk_disable(s3c24xx_i2s.iis_clk); + + return 0; +} + +int s3c24xx_i2s_resume(struct platform_device *pdev, + struct snd_soc_cpu_dai *cpu_dai) +{ + clk_enable(s3c24xx_i2s.iis_clk); + + writel(s3c24xx_i2s.iiscon, s3c24xx_i2s.regs + S3C2410_IISCON); + writel(s3c24xx_i2s.iismod, s3c24xx_i2s.regs + S3C2410_IISMOD); + writel(s3c24xx_i2s.iisfcon, s3c24xx_i2s.regs + S3C2410_IISFCON); + writel(s3c24xx_i2s.iispsr, s3c24xx_i2s.regs + S3C2410_IISPSR); + + return 0; +} +#else +#define s3c24xx_i2s_suspend NULL +#define s3c24xx_i2s_resume NULL +#endif + + #define S3C24XX_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 | \ @@ -415,6 +452,8 @@ struct snd_soc_cpu_dai s3c24xx_i2s_dai = { .id = 0, .type = SND_SOC_DAI_I2S, .probe = s3c24xx_i2s_probe, + .suspend = s3c24xx_i2s_suspend, + .resume = s3c24xx_i2s_resume, .playback = { .channels_min = 2, .channels_max = 2, |