76 lines
2.3 KiB
Diff
76 lines
2.3 KiB
Diff
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From 148a1026b1975e3a50981cf7df3d4aae2b34611e Mon Sep 17 00:00:00 2001
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From: mokopatches <mokopatches@openmoko.org>
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Date: Sun, 13 Apr 2008 07:23:53 +0100
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Subject: [PATCH] iis-suspend.patch
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---
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sound/soc/s3c24xx/s3c24xx-i2s.c | 38 ++++++++++++++++++++++++++++++++++++++
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1 files changed, 38 insertions(+), 0 deletions(-)
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diff --git a/sound/soc/s3c24xx/s3c24xx-i2s.c b/sound/soc/s3c24xx/s3c24xx-i2s.c
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index fe30e0d..4d74cc0 100644
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--- a/sound/soc/s3c24xx/s3c24xx-i2s.c
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+++ b/sound/soc/s3c24xx/s3c24xx-i2s.c
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@@ -76,6 +76,10 @@ static struct s3c24xx_pcm_dma_params s3c24xx_i2s_pcm_stereo_in = {
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struct s3c24xx_i2s_info {
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void __iomem *regs;
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struct clk *iis_clk;
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+ u32 iiscon;
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+ u32 iismod;
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+ u32 iisfcon;
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+ u32 iispsr;
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};
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static struct s3c24xx_i2s_info s3c24xx_i2s;
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@@ -406,6 +410,38 @@ static int s3c24xx_i2s_probe(struct platform_device *pdev)
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return 0;
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}
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+#ifdef CONFIG_PM
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+int s3c24xx_i2s_suspend(struct platform_device *pdev,
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+ struct snd_soc_cpu_dai *cpu_dai)
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+{
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+ s3c24xx_i2s.iiscon = readl(s3c24xx_i2s.regs + S3C2410_IISCON);
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+ s3c24xx_i2s.iismod = readl(s3c24xx_i2s.regs + S3C2410_IISMOD);
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+ s3c24xx_i2s.iisfcon = readl(s3c24xx_i2s.regs + S3C2410_IISFCON);
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+ s3c24xx_i2s.iispsr = readl(s3c24xx_i2s.regs + S3C2410_IISPSR);
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+
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+ clk_disable(s3c24xx_i2s.iis_clk);
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+
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+ return 0;
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+}
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+
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+int s3c24xx_i2s_resume(struct platform_device *pdev,
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+ struct snd_soc_cpu_dai *cpu_dai)
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+{
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+ clk_enable(s3c24xx_i2s.iis_clk);
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+
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+ writel(s3c24xx_i2s.iiscon, s3c24xx_i2s.regs + S3C2410_IISCON);
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+ writel(s3c24xx_i2s.iismod, s3c24xx_i2s.regs + S3C2410_IISMOD);
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+ writel(s3c24xx_i2s.iisfcon, s3c24xx_i2s.regs + S3C2410_IISFCON);
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+ writel(s3c24xx_i2s.iispsr, s3c24xx_i2s.regs + S3C2410_IISPSR);
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+
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+ return 0;
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+}
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+#else
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+#define s3c24xx_i2s_suspend NULL
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+#define s3c24xx_i2s_resume NULL
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+#endif
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+
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+
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#define S3C24XX_I2S_RATES \
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(SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 | SNDRV_PCM_RATE_16000 | \
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SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | \
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@@ -416,6 +452,8 @@ struct snd_soc_cpu_dai s3c24xx_i2s_dai = {
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.id = 0,
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.type = SND_SOC_DAI_I2S,
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.probe = s3c24xx_i2s_probe,
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+ .suspend = s3c24xx_i2s_suspend,
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+ .resume = s3c24xx_i2s_resume,
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.playback = {
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.channels_min = 2,
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.channels_max = 2,
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--
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1.5.6.5
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