diff options
| -rw-r--r-- | sound/soc/mxs/mxs-saif.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/sound/soc/mxs/mxs-saif.c b/sound/soc/mxs/mxs-saif.c index fdbb36aa9cf5..b3030718c228 100644 --- a/sound/soc/mxs/mxs-saif.c +++ b/sound/soc/mxs/mxs-saif.c @@ -427,8 +427,22 @@ static int mxs_saif_hw_params(struct snd_pcm_substream *substream, /* prepare clk in hw_param, enable in trigger */ clk_prepare(saif->clk); - if (saif != master_saif) + if (saif != master_saif) { + /* + * Set an initial clock rate for the saif internal logic to work + * properly. This is important when working in EXTMASTER mode + * that uses the other saif's BITCLK&LRCLK but it still needs a + * basic clock which should be fast enough for the internal + * logic. + */ + clk_enable(saif->clk); + ret = clk_set_rate(saif->clk, 24000000); + clk_disable(saif->clk); + if (ret) + return ret; + clk_prepare(master_saif->clk); + } scr = __raw_readl(saif->base + SAIF_CTRL); |