diff options
| author | Charles Keepax <ckeepax@opensource.wolfsonmicro.com> | 2013-02-20 18:28:39 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2013-03-04 04:01:00 +0100 |
| commit | de1e6eedddeab2fa417c38c231d896198f903129 (patch) | |
| tree | 59933f1f239b0a90c55f5ded309b8449470db622 /sound/soc/codecs/arizona.c | |
| parent | ASoC: arizona: Factor out FLL enable (diff) | |
| download | linux-de1e6eedddeab2fa417c38c231d896198f903129.tar.xz linux-de1e6eedddeab2fa417c38c231d896198f903129.zip | |
ASoC: arizona: Improve suppression of noop FLL updates
Previously updates that only changes FLL source would be missed, this
patch corrects this. We also ensures that both REFCLK and SYNCCLK
frequency changes are considered, in preparation for future updates.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'sound/soc/codecs/arizona.c')
| -rw-r--r-- | sound/soc/codecs/arizona.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/sound/soc/codecs/arizona.c b/sound/soc/codecs/arizona.c index e770945fa019..149e44f42f84 100644 --- a/sound/soc/codecs/arizona.c +++ b/sound/soc/codecs/arizona.c @@ -1145,10 +1145,12 @@ int arizona_set_fll(struct arizona_fll *fll, int source, struct arizona_fll_cfg ref, sync; int ret; - if (fll->fref == Fref && fll->fout == Fout) - return 0; - if (fll->ref_src < 0 || fll->ref_src == source) { + if (fll->sync_src == -1 && + 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) @@ -1159,6 +1161,10 @@ int arizona_set_fll(struct arizona_fll *fll, int source, fll->ref_src = source; fll->ref_freq = Fref; } else { + if (fll->sync_src == source && + fll->sync_freq == Fref && fll->fout == Fout) + return 0; + if (Fout) { ret = arizona_calc_fll(fll, &ref, fll->ref_freq, Fout); if (ret != 0) @@ -1172,6 +1178,7 @@ int arizona_set_fll(struct arizona_fll *fll, int source, fll->sync_src = source; fll->sync_freq = Fref; } + fll->fout = Fout; if (Fout) { arizona_enable_fll(fll, &ref, &sync); @@ -1179,9 +1186,6 @@ int arizona_set_fll(struct arizona_fll *fll, int source, arizona_disable_fll(fll); } - fll->fref = Fref; - fll->fout = Fout; - return 0; } EXPORT_SYMBOL_GPL(arizona_set_fll); |