diff options
Diffstat (limited to 'sound/soc/codecs/arizona.c')
| -rw-r--r-- | sound/soc/codecs/arizona.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/sound/soc/codecs/arizona.c b/sound/soc/codecs/arizona.c index 149e44f42f84..2bebfae3485f 100644 --- a/sound/soc/codecs/arizona.c +++ b/sound/soc/codecs/arizona.c @@ -1139,6 +1139,45 @@ static void arizona_disable_fll(struct arizona_fll *fll) pm_runtime_put_autosuspend(arizona->dev); } +int arizona_set_fll_refclk(struct arizona_fll *fll, int source, + unsigned int Fref, unsigned int Fout) +{ + struct arizona_fll_cfg ref, sync; + int ret; + + if (source < 0) + return -EINVAL; + + if (fll->ref_src == source && fll->ref_freq == Fref && + fll->fout == Fout) + return 0; + + if (Fout) { + ret = arizona_calc_fll(fll, &ref, Fref, Fout); + if (ret != 0) + return ret; + + if (fll->sync_src >= 0) { + ret = arizona_calc_fll(fll, &sync, fll->sync_freq, Fout); + if (ret != 0) + return ret; + } + } + + fll->ref_src = source; + fll->ref_freq = Fref; + fll->fout = Fout; + + if (Fout) { + arizona_enable_fll(fll, &ref, &sync); + } else { + arizona_disable_fll(fll); + } + + return 0; +} +EXPORT_SYMBOL_GPL(arizona_set_fll_refclk); + int arizona_set_fll(struct arizona_fll *fll, int source, unsigned int Fref, unsigned int Fout) { |
