diff options
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/samsung/i2s.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/sound/soc/samsung/i2s.c b/sound/soc/samsung/i2s.c index 079eb63d586..54df6db57d1 100644 --- a/sound/soc/samsung/i2s.c +++ b/sound/soc/samsung/i2s.c @@ -86,6 +86,8 @@ struct i2s_dai { #define DAI_OPENED (1 << 0) /* Dai is opened */ #define DAI_MANAGER (1 << 1) /* Dai is the manager */ unsigned mode; + /* CDCLK pin direction: 0 - input, 1 - output */ + unsigned int cdclk_out:1; /* Driver for this DAI */ struct snd_soc_dai_driver i2s_dai_drv; /* DMA parameters */ @@ -700,6 +702,9 @@ static int i2s_startup(struct snd_pcm_substream *substream, spin_unlock_irqrestore(&lock, flags); + if (!is_opened(other) && i2s->cdclk_out) + i2s_set_sysclk(dai, SAMSUNG_I2S_CDCLK, + 0, SND_SOC_CLOCK_OUT); return 0; } @@ -715,9 +720,13 @@ static void i2s_shutdown(struct snd_pcm_substream *substream, i2s->mode &= ~DAI_OPENED; i2s->mode &= ~DAI_MANAGER; - if (is_opened(other)) + if (is_opened(other)) { other->mode |= DAI_MANAGER; - + } else { + u32 mod = readl(i2s->addr + I2SMOD); + i2s->cdclk_out = !(mod & MOD_CDCLKCON); + other->cdclk_out = i2s->cdclk_out; + } /* Reset any constraint on RFS and BFS */ i2s->rfs = 0; i2s->bfs = 0; |